AMERICAN COMMUNICATIONS SERVICES INC
10KSB, 1996-10-01
TELEPHONE COMMUNICATIONS (NO RADIOTELEPHONE)
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           THIS DOCUMENT IS A COPY OF THE ANNUAL REPORT ON FORM 10KSB
                FOR THE FISCAL YEAR ENDED JUNE 30, 1996 OF 
                  AMERICAN COMMUNICATIONS SERVICES, INC.  
            FILED ON OCTOBER 1, 1996 PURSUANT TO A RULE 201 
                    TEMPORARY HARDSHIP EXEMPTION.


                       SECURITIES AND EXCHANGE COMMISSION

                              WASHINGTON D.C. 20549

                                  FORM 10 - KSB
              ANNUAL REPORT PURSUANT TO SECTION 13 or 15(d) OF THE
                       SECURITIES AND EXCHANGE ACT OF 1934

    For the fiscal year ended: June 30, 1996 Commission File number 0 - 25314

                     AMERICAN COMMUNICATIONS SERVICES, INC.
        (EXACT NAME OF SMALL BUSINESS ISSUER AS SPECIFIED IN ITS CHARTER)

                               DELAWARE 52-1947746
         (State or other jurisdiction of (I.R.S. Employer Identification
             incorporation or organization) No. formerly 05-0440761)

           131 National Business Parkway Annapolis Junction, MD 20701
                    (Address of Principle Executive Offices)

                    Issuer's telephone number (301) 617-4200

    Securities registered pursuant to Section 12(b) of the Exchange Act: None

         Securities registered under Section 12(g) of the Exchange Act:

                     Common Stock, par value $0.01 per share
                                (Title of Class)

     Check whether the issuer (1) has filed all reports  required to be filed by
Section 13 or 15(d) of the Exchange  Act during the  preceding 12 months (or for
such shorter period that the registrant was required to file such reports),  and
(2) has been  subject to such filing  requirements  for the last 90 days.  YES X
NO_________

     Check here if there is no disclosure  of  delinquent  filers in response to
Item 405 of  Regulation  S-B contained in this form,  and no disclosure  will be
contained,  to the best of the registrant's  knowledge,  in the definitive proxy
incorporated  by reference  in Part III of this Form 10-KSB or any  amendment to
this Form 10-KSB. [ ]

     Issuer's revenues for the fiscal year ended June 30, 1996 were $3,415,137.

     The aggregate market value of the voting stock held by non-affiliates based
upon the last reported sales price of a share of common stock as reported on the
Nasdaq  National Market on September 20, 1996 was  $36,551,138.  As of September
20, 1996 there were  6,761,466  shares of common  stock  outstanding,  par value
$0.01 per share outstanding.

The Index to Exhibits appears on page 63.

<PAGE>



                       Documents Incorporated By Reference

The   registrant's   definitive  Proxy  Statement  for  its  annual  meeting  of
stockholders  scheduled to be held on November  15,  1996,  to be filed with the
Commission  not later than 120 days after the close of the  registrant's  fiscal
year, has been  incorporated  by reference,  in whole or in part, into Part III,
Items 9, 10, 11 and 12 of this Annual Report on Form 10-KSB.


<PAGE>


                     AMERICAN COMMUNICATIONS SERVICES, INC.
                        1996 FORM 10 - KSB ANNUAL REPORT
                                      Index

Part I                                                                Page


Item 1.  Business                                                       1

Item 2.  Properties                                                    46

Item 3.  Legal Proceedings                                             46

Item 4.  Submission of Matters to a Vote of Security Holders           47

Part II 

Item 5.  Market for Common Equity and Related Stockholders             48
                  Matters

Item 6.  Management's Discussion and Analysis of Results of            50
                  Operations and Financial Condition

Item 7.  Financial Information                                         61

Item 8.  Changes in and Disagreements with Accountants on              61
                  Accounting and Financial Disclosure

Part III 

Item 9   Directors and Executive Officers of the Registrant            62

Item 10. Executive Compensation                                        62

Item 11. Security Ownership of Certain Beneficial Owners and           62
                  Management

Item 12. Certain Relationships and Related Transactions                62

Item 13. Exhibits and Reports on Form 8-K                              63


<PAGE>




                                     Part I

Item 1.  Business
         --------



Industry Overview

     The  continuing   deregulation  of  the  telecommunications   industry  and
technological  change  have  resulted in an  increasingly  information-intensive
business  environment.  The  ability to access  information  quickly  has become
critical to the success of both business and  government  end users.  Both voice
and data communications  traffic of large business and government end users have
increased  significantly.  In addition,  deregulation  has led to an increase in
competition in the  telecommunication  services  industry,  most recently in the
local exchange  markets.  Competitive  local exchange  carriers ("CLEC") such as
American Communications Services, Inc. ("ACSI" or "Company") have sought to take
advantage of the opportunities presented by increased competition and the demand
for timely and reliable telecommunications  services.  Regulatory initiatives in
the  telecommunications  industry  introduced to foster competition in the local
exchange  market  have  stimulated  demand for local voice  services,  the total
market for which was approximately $93.0 billion in 1994.

     Several  factors have served  historically  to promote  competition  in the
local exchange  market,  including (i) rapidly  growing  customer  demand for an
alternative to the local exchange carrier's ("LEC") monopoly,  spurred partly by
the  development of  competitive  activities in the long distance  market;  (ii)
advances in the technology  for  transmission  of data and video,  which require
greater capacity and reliability levels than copper-based LEC networks were able
to  accommodate;  (iii) a monopoly  position  and rate of  return-based  pricing
structure  that provided  little  incentive for LECs to upgrade their  networks;
(iv) the development of fiber optics and digital  electronic  technology,  which
combined  the  ability  to build a  network  economically  with the  ability  to
transmit  data and  video at  high-speeds  and  greatly  increased  capacity  as
compared to the LECs'  copper-based  networks;  and (v) the  significant  access
charges  that long  distance  companies  (interexchange  carriers or "IXC") were
required to pay to LECs to access the LECs' networks.

<PAGE>

    Competition in the local exchange services market began in the mid-1980s. In
New York City,  Chicago and Washington,  D.C., newly formed companies,  known as
competitive access providers ("CAPs"),  provided dedicated non-switched services
by installing fiber optic facilities  connecting  points of presence ("POPs") of
IXCs within a  metropolitan  area and, in some cases,  connecting  business  and
government  end users  with IXCs.  Most of these  early  CAPs  operated  limited
networks in the central  business  districts of major cities in the US where the
highest  concentration  of voice and data  traffic,  including  IXC traffic,  is
typically  found.  CAPs used the  substantial  capacity  and  economies of scale
inherent in fiber optic cable to offer customers service that was generally less
expensive  and of higher  quality  than could be obtained  from the LECs due, in
part,  to  antiquated  copper-based  facilities  used in many LEC  networks.  In
addition,  based on management's  experience,  CAPs offered shorter installation
and repair intervals,  improved reliability and more responsive customer service
in comparison to the LECs.

    Initially,  CAPs  could  effectively  compete  only for  special  access and
private line  services to customers  in  buildings  directly  connected to their
separate   networks.   The   Federal    Communications    Commission's   ("FCC")
interconnection decisions of September,  1992, and August, 1993, allowed CAPs to
significantly  increase the number of  customers  and markets  serviced  without
physically  expanding  their  networks.  Those  interconnection  decisions  also
enabled CAPs to provide interstate  switched access services in competition with
LECs,  which has encouraged the development of competitive  interstate  switched
access market.

    With   the    enactment    of   the    Telecommunications    Act   of   1996
("Telecommunications  Act") in February of this year, the Company  believes that
competition in the local telecommunications marketplace will be enhanced through
(i) removal of state and local  entity  barriers,  (ii)  requirements  that LECs
provide interconnections to their facilities,  (iii) facilitation of the process
of  changing  from LEC  services  to those  offered by CLECs and (iv)  access to
rights-of-way.  To the  extent  that LECs  begin to  compete  with IXCs for long
distance services, IXCs may have a competitive incentive to move access business
away from LECs to CLECs, and CLEC market share may increase.


                                     Page 2

<PAGE>



The Company

    ACSI is a rapidly  growing CLEC that  constructs and operates  digital fiber
optic networks and offers local telecommunications services to IXCs and business
and government  end users in Tier II and Tier III markets  (200,000 to 2,000,000
in population)  principally in the southern United States.  The Company provides
non-switched  dedicated services,  including special access,  switched transport
and private line services.  These services  generally are offered by the Company
at a discount to those of the LEC and are delivered with a high level of network
reliability.  In addition to these dedicated services, the Company is developing
and has begun  offering  high-speed  data services to business,  government  and
other  communications   providers  (including  Internet  service  providers,  or
"ISPs").  High-speed data services include Internet  Protocol ("IP")  switching,
frame relay and  Asynchronous  Transfer Mode ("ATM").  Management  believes this
wide range of data services will ensure support of legacy,  current and emerging
applications,    including    multimedia    applications    such   as    desktop
videoconferencing.  The  Company  has also  begun  offering  on a limited  basis
enhanced voice messaging services. Management believes that successful marketing
of these  high-speed data and enhanced voice  messaging  services should provide
the Company with  increased  revenues,  an expanded  end-user  customer base and
relevant marketing experience that can be leveraged into offering local switched
voice  services.  The  Company  plans to begin  offering  local  switched  voice
services by late 1996.

As of June  30,  1996,  ACSI had 15  operational  networks  and nine  additional
networks  under  construction.  Since June 30, 1996,  the Company has  completed
construction  of three of the networks under  construction  at June 30, 1996 and
begun  construction of six additional  networks.  From June 30, 1995 to June 30,
1996,  the  Company  increased  its  operational  networks  from  five to 15 and
increased  its route  miles  from 43 to 415.  The  Company  intends,  subject to
receipt  of  necessary  additional  financing,  to  have  a  total  of 50  local
distribution networks in service or under construction by the middle of calendar
year 1998. To date, management believes that it has been able to use its capital
most efficiently by constructing,  rather than acquiring,  fiber optic networks.
By constructing all of its networks,  ACSI believes it has realized  significant
cost savings,  created considerable networking efficiencies and ensured quality,
reliability and high operating standards. The Company believes the concentration
of its 50 networks

                                     Page 3


<PAGE>


principally  throughout the southern  United  States,  together with its planned
inter-city  broadband data backbone network,  will provide an effective platform
for the provision of its local  switched  voice,  enhanced  voice  messaging and
high-speed  data  services at reduced  costs.  ACSI's  management  team includes
several  pioneers in the  development of the  competitive  access  industry with
demonstrated  expertise  in  successfully  deploying  fiber optic  networks  and
aggressively managing operations to generate positive operating cash flow.

                                  ACSI Networks

                                                       Targeted to be
                                                       Operational by
Operational as of September 30, 1996                   December 31, 1996
                                                       -----------------

Albuquerque, NM            Las Vegas, NV               Amarillo, TX
Birmingham, AL             Lexington, KY               Baton Rouge, LA
Charleston, SC             Little Rock, AR             Central Maryland
Columbia, SC               Louisville, KY              Chattanooga, TN
Columbus, GA               Mobile, AL                  Colorado Springs, CO
El Paso, TX                Montgomery, AL              Corpus Christi, TX
Fort Worth, TX             Spartanburg, SC
Greenville, SC             Tucson, AZ                  Targeted to be
Irving, TX                                             Operational by
Jackson, MS                                            March 31, 1997
                                                       --------------


                                                       Dallas, TX
                                                       Jacksonville, FL
                                                       Kansas City, MO
                                                       New Orleans, LA
                                                       Shreveport, LA
                                                       Tulsa, OK

    Information contained herein contains "forward-looking  statements" (as such
term is defined in the Private  Securities  Litigation Reform Act of 1995) which
can be identified by the use of forward-looking  terminology such as "believes,"
"expects,"  "may," "will," "should," or "anticipates" or the negative thereof or
other  variations  thereon  or  comparable  terminology,  or by  discussions  of
strategy.  Certain statements contained in "Business,"  "Management's Discussion
and  Analysis  of  Financial  Condition  and  Results of  Operations"  and other
sections herein, including statements regarding the development of the Company's
businesses, the markets for the Company's services and products, the Company's

                                     Page 4


<PAGE>


anticipated  capital  expenditures,   regulatory  reform  and  other  statements
contained  herein  regarding   matters  that  are  not  historical   facts,  are
forward-looking  statements.  No assurance can be given that the future  results
covered by the  forward-looking  statements  will be  achieved.  The matters set
forth in  Exhibit  99.1  hereto  constitute  cautionary  statements  identifying
important  factors with respect to such  forward-looking  statements,  including
risks and uncertainties, that could cause actual results to vary materially from
the future  results  indicated,  expressed or implied,  in such  forward-looking
statements.  Other  factors could also cause actual  results to vary  materially
from the future results indicated in such forward-looking statements.

Company Strategy

The Company's objective is to become a leading provider of dedicated and private
line, high-speed data, including IP switching,  and enhanced voice messaging and
local  switched  voice services in its 50 planned  markets by  implementing  the
following strategies:

        Early  Entry in Tier II and  Tier III  Markets  in the  Southern  United
    States.  The Company  principally  targets Tier II and Tier III markets,  as
    they are generally  subject to less competition from other CLECs relative to
    larger,  more  developed  Tier I markets,  thereby  generally  enabling  the
    Company to achieve  market  penetration  quickly.  ACSI  intends to continue
    focusing its market entry principally in areas of the southern United States
    because of attractive  demographic  trends and expected growth in demand for
    telecommunications  services in these  regions,  which the Company  believes
    have been  underserved  to date.  Between 1989 and 1994,  the rate of access
    line growth in all regions of the South  exceeded  the  national  average by
    approximately  two and  one-half  times.  Additionally,  the  18-state  area
    targeted by the Company accounts for  approximately 37% of the US population
    and  approximately  35% of the  total  access  lines in the  United  States.
    Although not precluding entry into a particular  market by competitors,  the
    Company believes that the first operational  competitive network in a market
    generally has a competitive  advantage in  attracting  customers  willing to
    switch from the LEC.  Management believes that the Company will be the first
    competitor  to  offer  dedicated  services  in half of the  above-listed  30
    markets.

                                     Page 5


<PAGE>



    Building on Strong  Relationships  with IXCs. ACSI has significant  customer
    relationships with most of the major IXCs serving its markets.  Currently, a
    substantial portion of the Company's revenues is billed to IXCs for services
    provided for the benefit of their customers (i.e. private label). IXCs often
    choose the access provider for the local portion of a long distance call and
    have  a  strong  presence  in  all  of  the  Company's  target  markets.  By
    demonstrating  its ability to provide high quality  services in its existing
    markets and by not providing  interexchange  service in competition with the
    IXCs, the Company has the  opportunity to obtain  commitments  for dedicated
    services  from IXCs in new  markets.  The  Company  has  signed a  five-year
    agreement with MCImetro Access Transmission Services, Inc. ("MCImetro"),  in
    which MCImetro has agreed to purchase  minimum levels of dedicated  services
    from ACSI and has  committed  to  construct  portions of ACSI's  fiber optic
    networks in six cities.  The  Company has also signed  agreements  with AT&T
    Communications,  Inc.  ("AT&T")  and two other  IXCs,  pursuant to which the
    Company expects AT&T and such other IXCs to use the Company as a supplier of
    dedicated special access services,  as well as such other services as may be
    agreed upon, in particular markets.  Additionally,  the Company is currently
    negotiating  similar  arrangements  with other IXCs. The Company markets its
    services  directly to the end user in conjunction with IXC  representatives.
    The Company  expects further growth to the extent that LECs begin to compete
    with  IXCs  for  long  distance  services,  thereby  providing  IXCs  with a
    competitive  incentive  to move  access  business  away  from LECs to CLECs.
    Moreover,  because the  Telecommunications  Act  prohibits the three largest
    IXCs from jointly  marketing their long distance  services with resold local
    services of a Regional  Bell  Operating  Company  ("RBOC")  (until that RBOC
    itself offers  in-region long distance  service),  the Company believes that
    IXCs should have incentive to resell CLEC services.

        Aggressive  Bottom-Line  Approach  to Network  Deployment.  The  Company
    rapidly  deploys its  networks  and markets its services in order to quickly
    achieve  operating cash flow  breakeven,  i.e.,  positive EBITDA (net income
    (loss) before net interest,  income taxes,  depreciation  and  amortization)
    before  overhead  allocations.   The  Company's  objective  is  to  commence
    construction  of a network  in the  central  business  district  of a market
    immediately upon receipt of the requisite municipal  approval.  ACSI targets
    completion of its initial network

                                     Page 6


<PAGE>


    phase  and   commencement   of   commercial   service  in  a  market  within
    approximately  six  months  after the  start of  construction.  The  Company
    typically  begins  premarketing its services at the start of construction so
    that once a network becomes operational,  customer demand already exists for
    its  dedicated  services.  The Company then seeks to extend the reach of its
    network  outside  the  central  business  district  in  response to customer
    demand.  ACSI anticipates that each dedicated  services network will achieve
    operating   cash  flow   breakeven   within  ten  to  fifteen  months  after
    commencement of service. In its more mature markets, Louisville, Little Rock
    and Greenville, the Company achieved operating cash flow breakeven in a year
    or less after initiation of service.

    Cost-Effective Entry into Local Switched Voice and Value-Added  Services. To
    take advantage of the opportunities  created by the  Telecommunications  Act
    and following receipt of state regulatory approval and LEC interconnections,
    the Company plans to offer local switched  voice  services  beginning in the
    4th  calendar  quarter  of 1996  where it is  deploying  local  distribution
    networks.  The  Company  expects  to  deploy  telecommunications   switching
    equipment in eight  markets by mid-1997 and in 24 markets by early 1999.  To
    take  advantage of the size and regional  concentration  of ACSI's  markets,
    where technically feasible and economically  practicable,  the Company plans
    to  implement  a hubbed  switching  strategy  whereby  one  switch can serve
    multiple smaller markets via remote switching  modules.  This strategy would
    justify  the switch  investment  in Tier II and Tier III markets by reducing
    capital costs and operating expenses.  The Company recently agreed initially
    to lease eight Lucent  Technologies,  Inc. 5ESS-2000 switching systems.  The
    Company  believes that providing  dedicated,  enhanced  voice  messaging and
    high-speed data services will enhance the Company's  ability to cross-market
    local switched voice services.

       The Company's local switched voice services plan is targeted at small and
    medium sized  business and  government  end users.  The typical  customer is
    expected  to have  between  ten and 100  employees.  The  Company  plans  to
    initially target users within the buildings of ACSI's existing  customers to
    connect such users directly to its network and then to offer its services to
    customers that are not directly  connected to the Company's  network through
    interconnection   with  the  incumbent   LECs.   In   accordance   with  the
    Telecommunications  Act, the Company has negotiated  partial  agreements for
    interconnection with BellSouth, Southwestern Bell, US West and GTE,

                                     Page 7


<PAGE>


       covering a total of 12 states and is  currently  arbitrating  outstanding
    issues  before  public  service  commissions  ("PSCs") in those  states.  In
    addition,  the Company is negotiating  interconnection  agreements with Bell
    Atlantic  and  Sprint  Central.  The  Company  believes  that  many of these
    potential  customers can be gradually  attracted as the Company  expands the
    range of local switched voice services  within specific  buildings,  thereby
    justifying  the  expansion  of  the  Company's   network  to  connect  these
    additional customers and buildings.

    Additionally,   the  Company  will  seek  existing  and  emerging  technical
    solutions  in  order to  serve  smaller  markets,  where  feasible  and cost
    justified.  The Company will continue to seek and evaluate  opportunities in
    the future to deploy regional switching hubs that can serve multiple smaller
    markets.  In  addition,  the  Company  is  evaluating  opportunities,  on  a
    market-by-market  basis,  to partner with certain  entities  that have local
    switching requirements, experience, facilities and/or back-office operations
    that can result in mutually beneficial alliances.  Successful negotiation of
    switching   partnerships  may  further  reduce  the  Company's  capital  and
    operating  expenses  associated  with the  provisioning  of  local  switched
    services in its markets.

       The Company believes that its local digital fiber optic networks, coupled
    with the distributed hub configuration and its planned broadband  inter-city
    data  network,  will provide a robust  platform for the  provision of a wide
    variety of voice, data and  communications  services at a reduced cost. Over
    time,  the Company  believes it can  increase its market share in all of its
    service  offerings  as a  result  of  the  reliability  and  quality  of its
    networks,     prompt     customer     service,      competitive     pricing,
    cross-marketing/bundling synergy's and new service offerings over its target
    50-city market area.

    ACSI  has  begun  offering  on a  limited  basis a range of  enhanced  voice
    messaging services to small and mid-sized business and government end users.
    The Company's initial offerings of enhanced voice messaging services include
    business voice  messaging  services  utilizing the Company's  First Line and
    First Line Plus  products and  one-number  services  utilizing the Company's
    Virtualine  and  Virtualine  800  products.  The  Company's  enhanced  voice
    messaging  service can function as a virtual PBX.  Management  believes that
    the market  for voice  messaging  services  in 1993 was  approximately  $1.4
    billion,  that this market is underserved and that, with the availability of
    enhanced voice messaging

                                     Page 8


<PAGE>


    services such as the Company's, this market has the potential for continued,
    rapid growth as customers  become more  accustomed to use of these services.
    The Company  believes  that this market  should also serve as an  additional
    customer  base to which the  Company  can  market its local  switched  voice
    services.

    Developing a Broadband Data  Communications  Backbone Network with Extensive
    Local  Points  of  Presence.   The  Company   believes  that  switched  data
    communications  represent  one  of  the  fastest  growing  segments  of  the
    telecommunications  services  market.  Industry sources estimate that the US
    business  switched data services  market was  approximately  $1.1 billion in
    1995 and the Company  believes  that this market will grow to  approximately
    $10.0  billion by 2000 due,  in part,  to the  continuing  proliferation  of
    computers and the increasing need to interconnect  these computers via local
    and  wide  area  networks,  the  dramatic  growth  of the  Internet  and the
    emergence of multimedia  applications.  Together,  these  applications  have
    spawned  numerous  network  technologies  and  communications  protocols  to
    support   legacy,   current  and  emerging  needs.   The  domestic   network
    infrastructure   currently   supporting   both  voice  and  data   transport
    requirements  is being strained by the increasing  demand for high bandwidth
    transport at both the local and national  levels.  The Company believes that
    the growth of high speed  applications will further strain the networks that
    exist today. Unless additional network infrastructure  supporting these high
    bandwidth  requirements  is developed,  the ability of existing  networks to
    service the demand for both speed and  capacity  may continue to be strained
    and may result in further  degradation of the quality of service afforded by
    network  service  providers.  The Company  believes that this  constraint in
    bandwidth  capacity  creates  a  significant  business  opportunity  for the
    Company,  particularly  in its  Tier II and  Tier III  markets,  which  have
    largely been ignored by the larger data communications providers.

    The Company is  deploying a  coast-to-coast  broadband  data  communications
    backbone network via leased inter-city fiber connections on which customers'
    high-speed data and multimedia  traffic may be transported at a high-quality
    level on a cost-effective  basis. ACSI believes its ATM-based high bandwidth
    network will be capable of  simultaneously  supporting IP  switching,  frame
    relay and  multimedia  applications.  This  technology  will  allow  network
    customers  to  migrate  transparently  from  lower  speed  services  to high
    bandwidth services, as

                                     Page 9


<PAGE>


    their data communications  requirements expand. The Company currently has 25
    data POPs,  and plans to have 40 data POPs in service by the end of calendar
    year 1996. The Company  believes this backbone,  coupled with its planned 50
    local  distribution  networks,  provides  the  Company  with  both a service
    quality and a cost advantage for its high speed data services.

The Company  believes  that it can become a major  provider of  high-speed  data
communications  services  (including IP  switching,  frame relay and ATM) in the
southern United States by:

    - Offering  Data  Communications  Solutions  Based on Proven  Carrier-Grade,
      Standards-Based Technology with Flexible and Superior Back-Office Systems.
      The Company believes open and carrier-grade, standards-based technology is
      necessary for companies to compete  effectively  (with respect to features
      and price),  avoid costly  conversion from legacy systems,  offer multiple
      data  solutions  with  minimal  equipment  and  manpower  cost,  and  cost
      effectively establish  interconnection among key IXCs, LECs and customers.
      The  Company  believes  that  its  ability  to  maintain   flexibility  on
      provisioning  and billing with  respect to its initial and future  product
      offerings and pricing  differentiates ACSI from its competitors.  Examples
      of the  billing  flexibility  that the  Company  plans  to  offer  include
      accounting  and billing  information  at the  wholesale  level to IXCs and
      resellers,  retail level  accounting  and billing  information to business
      customers   and   ISPs,   flat/transaction   billing,   volume   discounts
      (multi-product/multi-service) and chain billing.

    - Packaging  Complex Data Solutions as a Simple Offering.  ACSI packages its
      data communications  service  capabilities  through a  solutions-oriented,
      consultative  selling  approach  supported by a highly  trained  sales and
      support  staff,  which  provides the customer with easy and  uncomplicated
      access  to a  series  of  complex  services.  Pricing,  provisioning,  and
      customer  interface  to the  product  has been  structured  as  simply  as
      possible.  The Company expects that one-stop  shopping through ACSI's data
      services  business  unit  will  facilitate   implementation  and  minimize
      customers'  need to interface with multiple  vendors.  A complete  service
      offering  capability is expected to enable the Company to provide improved
      quality of service as an "upstream" network provider to regional and local
      service providers as well as to public sector, corporate and institutional
      customers.
                                     Page 10


<PAGE>



    - Addressing the Need for High Bandwidth Data Network  Infrastructure in the
      Southern  United States.  The Company  believes that, to date,  major data
      services  providers,  such as the IXCs, have focused on serving the Tier I
      markets.  An  increasing  number of regional,  national and  multinational
      corporations  are located in mid-sized  markets within the southern United
      States   (the   principal   target   markets  of  ACSI's   local   network
      infrastructure)  and are  demanding  the  entire  range of  switched  data
      communications  services,  including  IP  switching,  frame relay and high
      bandwidth  transport  services.  The Company  believes there is inadequate
      data services infrastructure in this region to support these services.

    - Offering  Integrated  Data  Communications  Services  Via  a  Single  High
      Bandwidth Network.  While current growth in demand for data communications
      services has been focused on IP switching  and frame relay  services,  the
      Company  does not  believe  that  either has been  engineered  to meet the
      growing  demand for  bandwidth.  The Company  believes that end users will
      benefit from being able to have their  diverse data  communications  needs
      met by a single provider over a single network. By deploying an ATM-based,
      high bandwidth network, the Company can offer business,  institutional and
      government  customers  the entire  range of switched  data  communications
      service offerings through a single integrated network, aggregating traffic
      and  increasing  network   efficiencies,   managing  bandwidth,   ensuring
      consistent   delivery   and   servicing   of   customers'   diverse   data
      communications  requirements.  This backbone  should enable the Company to
      expand its range of service coverage and offerings.

    - Leveraging  Local Network and Switching  Infrastructure  to Reduce Cost of
      Service.  Local access  charges and switched  local lines are a major cost
      component  of  data  communications.   Most  data  communications  service
      providers, such as IXCs and ISPs, do not currently have local distribution
      network  facilities in place and,  therefore,  must  purchase  these local
      components from other parties such as the LEC or a CLEC. Similarly, to the
      extent  data  service  requirements  include  a need  for  local  switched
      services,  these lines must be obtained  from the LEC or a CLEC with local
      switching capability. Because ACSI is planning local network facilities in
      50 markets

                                     Page 11


<PAGE>


      and  switching  capability  in at least 24 of those  markets,  the Company
      believes that it can provide data communications  services to customers in
      those  markets  where it has network and  switching  facilities at a lower
      cost with higher quality of service.

    The  Company  believes  that  the  following  data  communications  services
constitute the principal growth areas in commercial data market:

        Internet Access Services. Businesses are increasingly using the Internet
    to transmit  e-mail,  engage in commercial  transactions  (e.g.,  electronic
    commerce) and develop  internal  communications  networks,  or  "intranets."
    Businesses  are also  using the World  Wide Web to  disseminate  information
    about their products and services.  Increasing  business  utilization of the
    Internet  has added to the demand for higher-  speed  Internet  connections,
    increased port capacity and secure network facilities.

        Industry  analysts estimate that the number of Internet users during the
    past  five to ten  years  has  grown  by 100% a year.  Demand  for  Internet
    services,   including  access  (i.e.,   services  connecting  users  to  the
    Internet),  applications (such as "Web browsers") and hardware, has resulted
    in significant  demand for local and  interexchange  communications  network
    services,  applications  software  and  systems  integration  services.  The
    current U.S. market for IP switching is estimated to be approximately $550.0
    million and is projected to grow to approximately $3.5 billion by 2000.

        Managed  Services.   Managed  services  are  comprehensive   value-added
    offerings that provide the design,  installation,  and on-going  management,
    maintenance  and  hardware  (such as  switches,  routers  and  modems) for a
    customer's  network.  By eliminating  many of the timing,  coordination  and
    inter-operability  issues  that arise in  installations  requiring  multiple
    vendors to design and  install a network,  managed  services  offer a single
    source  solution.  In addition,  configuration  management  issues,  such as
    maintaining consistent versions of the router software, deploying consistent
    configurations and overall network management, are addressed in most managed
    services offerings.

                                     Page 12


<PAGE>



    While  managed  services  can  be  provided  for  all  data   communications
    applications  and  technologies  (including  frame relay and ATM),  the most
    immediate market opportunity for managed services is with local and regional
    ISPs.  Managed services,  via a turnkey  approach,  address numerous network
    implementation,  expansion  and  management  issues for ISPs,  including the
    provision of hardware of local lines and  dedicated  circuits,  and securing
    physical space via collocation for expansion of the ISP's network  hardware.
    Collocation  of the  ISP's  equipment  in the  managed  services  provider's
    network  facility  also  reduces  the ISP's local  access  costs by reducing
    circuits to  approach  the  "zero-mile"  level.  Finally,  because a managed
    services   provider  can  aggregate  and  consolidate   interexchange   data
    communications  traffic from multiple customers (and thus purchase transport
    at more cost effective  higher  bandwidths,  e.g., 45 mbps versus 1.5 mbps),
    the provider can offer ISPs lower pricing on their interexchange  (longhaul)
    transport  than if the ISPs  obtained the service  directly  from a longhaul
    carrier (such as an IXC). The U.S. market for Internet-related  data network
    equipment was an estimated  $800.0  million in 1995 and is projected to grow
    to approximately  $4.0 billion by the year 2000.  Managed service  providers
    can penetrate this market for network  equipment  through  bundling an ISP's
    hardware needs with network services on a turnkey basis.

        Frame Relay.  Frame relay  service is a fast-packet  transport  solution
    targeted at LAN-to-LAN and legacy  networks such as SNA. Frame relay service
    is designed to meet fluctuating,  or periodic, data transfer requirements by
    offering shared virtual  bandwidth  connectivity at high speed.  Frame relay
    services offer low cost data  transmission with generally minimal delay, few
    errors and high speed  performance.  Frame  relay  provides a solution  that
    satisfies  customer   requirements  for  integrated,   cost-effective   data
    communications in environments where transmission needs fluctuate. As users'
    requirements  expand into  multimedia  applications,  which  require  higher
    bandwidth,  frame relay  offers a natural  migration  path to ATM.  Industry
    sources project that the U.S. market for frame relay services will grow from
    an estimated $1.3 billion in 1996 to  approximately  $3.7 billion by the end
    of the year 2000.

          ATM. ATM is a high bandwidth service providing virtual  networking for
     voice, data and multimedia traffic. The ability to combine all three media

                                     Page 13


<PAGE>


    provides  opportunities  to  reduce  costs  associated  with  running  three
    separate  networks  for each  medium.  The  major  benefits  of ATM  include
    providing  shared  access to trunk  bandwidth for multiple  application  and
    application  types,  minimizing the number of wide area connections  needed,
    and  supporting  user access speeds of at least 1.5 mbps (T-1).  Frame relay
    customers whose capacity  requirements  increase can achieve cost savings by
    migrating to fractional  T-3  transmission  speeds  (between 1.5 mbps and 45
    mbps) or to full 45 mbps and higher connectivity.  Large customers,  such as
    regional or national ISPs,  financial  institutions  and other entities with
    very high  volume  data  transport  requirements,  may also  seek  redundant
    dedicated transport at T-3 to OC-3 levels or higher,  essentially  obtaining
    the same level of network capacity and self-healing network reliability as a
    dedicated  facilities  customer with SONET service.  Local ATM  applications
    include native speed LAN connectivity, diagnostic imaging, videoconferencing
    and other high bandwidth  applications.  Industry  sources  estimate the ATM
    market will be  approximately  $63.0  million  during 1996,  and the Company
    believes that this market will increase to approximately $1.6 billion by the
    end of 2000.

    Attract  and  Retain a  Management  Team with  Extensive  Telecommunications
Experience.  The senior  management of ACSI pioneered the development of many of
the first  fiber optic  networks in Tier I markets in the United  States and has
substantial experience in rapidly building  cost-effective networks and managing
service  operations.  The  Company's  Chairman,  Anthony  J.  Pompliano,  is the
co-founder and former  President and Chief Executive  Officer of MFS. Richard A.
Kozak,  the Company's  President and Chief  Executive  Officer,  has held senior
management positions at several telecommunications companies,  including MFS and
Sprint  International  (formerly  Telenet  Communications  Corporation).   Other
members of the Company's senior  management team have experience  working at MFS
Communications  Group, Inc. ("MFS"),  Teleport  Communications Group, AT&T, MCI,
WilTel, Inc., BellSouth  Telecommunications,  Inc. and other  telecommunications
companies.  The Company's  management  team  collectively  has over 200 years of
marketing and operating experience in the telecommunications industry.

    The Company believes that various telecommunications  companies, such as the
IXCs and other LECs,  will seek entry into the now  competitive  local  exchange
services market through relationships with alternative service providers such as

                                     Page 14


<PAGE>


the Company.  The Company  further  believes that its service  offerings will be
attractive to such competitive telecommunications providers due to the Company's
breadth  of  market  coverage  in a  significant  number of Tier II and Tier III
markets in the southern United States.  The Company is developing  relationships
with key  partners  and  intends to create the  infrastructure  to support  this
resale opportunity.

Network Development

     The Company  constructs and operates  digital fiber optic networks.  Signal
transmissions  carried  over digital  fiber optic  networks are superior in many
respects  to  older  analog  transmissions  carried  over  copper  wire  and  by
microwave,  which continues to be used in varying  degrees by the LECs.  Digital
fiber optic telecommunications networks generally offer faster and more accurate
transmissions   for   all   data   and   voice    communications   than   analog
telecommunications  systems or digital  transmission  systems using copper wire.
Fiber optic networks also generally require less maintenance than copper wire or
microwave  facilities or comparable  transmission  capacity,  thereby decreasing
operating  costs.  An increase in capacity  can be achieved  through a change in
electronics.   Because  ACSI  is  employing  the  latest  digital   transmission
technology  in  its  networks,  its  digital  fiber  optic  networks  will  have
substantial additional capacity. The Company believes it will be able to use its
CLEC networks to provide a wide range of  telecommunications  services with only
incremental facilities costs.

     Management   believes  that  it  can  currently  deploy  its  capital  more
efficiently by constructing  fiber optic networks rather than acquiring networks
constructed by other CLECs. In light of the  significant  premium to book values
associated  with  recent  acquisitions  within  the  CLEC  industry,  there  are
considerable  efficiencies  associated  with  utilizing  consistent  vendors and
equipment in the Company's network, therefore ensuring high quality, reliability
and operating standards.

     Key  elements  of the  Company's  network  development  plan  include:  (i)
thoroughly analyzing potentially favorable markets for development; (ii) seeking
authorizations  from public and private  entities for  rights-of-way;  and (iii)
efficiently implementing construction plans in a timely manner, thereby allowing
the Company to gain a competitive position in the chosen market.

                                     Page 15


<PAGE>



Site  Selection.  Before  deciding  to enter a market,  the  Company  conducts a
detailed  feasibility  study to  determine  the  potential  size of the  market,
existing  competition  within  the  market,  the  Company's  ability  to  obtain
municipal authorizations,  including franchises and access to rights-of-way, and
the relative ease of market entry from a local and state regulatory  standpoint.
The   rights-of-way   assessment,   done   by   independent   telecommunications
consultants,  determines  whether another CAP/CLEC network is under construction
or ready to construct  in the target  market,  the  availability  of  economical
rights-of-way,   the  local  utility's   receptiveness   to  allow  use  of  its
rights-of-way,  the topology of the city and  concentrations  of commercial real
estate, and the local city permitting and franchise requirements.  The market or
end-user  survey,  also  done  by  independent  telecommunications  consultants,
identifies  the  significant  commercial  and government end users in the target
service areas.  Individual  telephone  and/or  face-to-face  interviews are then
conducted  with potential end users,  focusing on those  anticipated to have the
largest business volume. The interviews  determine the end user's  receptiveness
to using a competitor to the LEC, the  telecommunications  requirements  of such
end user,  current  pricing  by the LEC and  other  relevant  information.  This
"bottom  up" sizing of the target  service  areas  provides  an  estimate of the
prospective business by building and by customer.

    Rights-of-Way.  As part of its due  diligence  on a market  during  its site
selection  process,   the  Company  seeks  municipal   authorizations  (such  as
franchises,  licenses,  or permits) to construct and operate its network  within
the public  rights-of-way.  The duration of this approval  process can vary from
less than three  months to  several  years,  depending  on the  specific  legal,
administrative,  and political factors existing in that market. The initial term
of these municipal approvals,  once granted, may range from as few as five years
to as  many as 25  years,  and  such  approvals  typically  may be  renewed  for
additional terms.

    Concurrent with its seeking municipal authorizations,  the Company initiates
discussions with electric or gas utilities,  cable television companies ("CATV")
and other private providers of rights-of-way  and/or facilities that may be used
by the Company for installation of its network.  These  discussions are intended
to result in  agreements  that allow the  Company to make use of those  parties'
fiber optic cables (such as IRUs), the underground conduits, distribution poles,
transmission towers, and building entrances. The Company's ability to enter into
such

                                     Page 16


<PAGE>


agreements can have a material impact on the Company's capital costs for network
construction  and the speed with which the Company can  construct  its networks.
Additionally,  obtaining such agreements  facilitates  the Company's  ability to
expand  efficiently beyond the central business district to serve additional end
users in its markets.  The term of such agreements is typically ten to 25 years,
with renewal terms of five to 15 years. The Company believes that the experience
of members of its senior management team in negotiating such agreements gives it
a  competitive   advantage  over  other  CLECs  that  have  less  experience  in
successfully negotiating such agreements.

    Implementation of Network Construction.  The Company initially builds a one-
to  three-mile  self-healing  fiber loop in the central  business  district or a
discrete area outside the central  business  district of a given target  market.
This network provides the users with lower costs, fiber optic clarity, diversity
of access,  and fault tolerant  reliability of service,  with automatic stand-by
and rerouting in the event of operator, system or network failure. The Company's
networks are then expanded into  suburban  business  areas and other LEC central
offices to serve additional customers.  These expansions may be in excess of 100
route miles. The Company utilizes outside contractors to construct its networks.

Prior to its obtaining required municipal  authorizations,  the Company, through
outside consultants,  prepares preliminary and final engineering studies for the
initial portions of its networks.  The Company's intent is to have the necessary
route  maps,  detailed  final  engineering  drawings,   and  other  construction
documents  completed by the time  municipal  authorizations  are obtained.  This
process  enables  the  Company  to  initiate  network  construction   activities
immediately  upon  receipt  of  municipal  authorizations.  Concurrent  with the
engineering process, the Company identifies commercial space for the location of
its  administrative  and  sales  offices  and  node  (hub)  site  and  commences
negotiations  for the  lease of such  space.  Outside  plant  construction  of a
typical downtown network will take from four to six months, depending on various
factors.  Preparation  and build out of the Company's  office and node space and
subsequent  installation of electronics and cabling typically proceed during the
outside  construction  activity and are scheduled to be completed  concurrently.
Finally,  the Company  initiates the application  processes for collocation with
the LEC's downtown central office and interconnection  with selected IXC POPs to
coincide  with other  construction  milestones.  The Company  believes that this
coordinated construction process

                                     Page 17


<PAGE>


reduces overall network  development costs and reduces  construction  intervals,
allowing it to initiate operations at an earlier date.

Following  completion  of its initial  network and the  commencement  of network
operations,  the Company's local staff,  in  consultation  with personnel at the
Company's headquarters, designs expansion routes that will enable the Company to
reach  additional  end users and to  interconnect  with  additional  LEC central
offices outside the central business district or the targeted construction area.
Construction of these expansion  routes is typically done under  agreements with
third party  rights-of-way  providers as described  above, but in some instances
the  Company  constructs  its own new  facilities  (typically  by  trenching  or
directional boring) where third party facilities (whether aerial or underground)
do not exist or are not  available  for use by the  Company.  The  Company  also
constructs  lateral network  facilities from its fiber optic backbone to provide
on-network service to its customers. In some instances,  the Company will design
and  construct  some or  substantially  all of its routes  outside  the  central
business  district  concurrent with the  construction  of the downtown  network,
increasing  the speed of overall  network  construction  and,  in the  Company's
opinion, creating a competitive advantage over other CLECs that may have entered
or are seeking to enter the market. To the extent possible,  the Company engages
the third party right-of-way provider to install ACSI's cable in or on the third
party's  facilities,  usually at a lower cost and with  greater  speed than that
obtained by using outside contractors.

    The Company's  network  management  center in Annapolis  Junction,  Maryland
monitors all of the Company's  networks from one central  location.  Centralized
electronic  monitoring and control of the Company's  networks allows the Company
to avoid duplication of this function in each city. This consolidated operations
center also helps to reduce the Company's per customer  monitoring  and customer
service costs,  such that they are lower than would be available if monitored on
a single-city  basis. The Company also plans to use this facility to monitor the
performance of data and switched voice services.

Products and Services

    The  Company  currently  provides,  or is  actively  implementing  plans  to
provide, a wide range of local  telecommunications  services including dedicated
and private line, high-speed data service solutions,  including IP switching and
managed

                                     Page 18


<PAGE>


services,  local  switched  voice  services and enhanced  voice  messaging.  The
Company's local distribution networks are designed to support this wide range of
enhanced  communications  services,  provide increased  network  reliability and
reduce costs for its customers.

    Dedicated Services.  During fiscal 1996, dedicated and private line services
for IXCs and other carriers accounted for a substantial portion of the Company's
revenues with the remainder  coming from business and government end users.  The
Company's    dedicated    services    provide   high    capacity    non-switched
interconnections:  (i)  between  POPs of the  same  IXC;  (ii)  between  POPs of
different IXCs;  (iii) between large business and government end users and their
selected  IXCs;  (iv) between an IXC POP and a LEC central office or between two
LEC  central  offices;  and (v)  between  different  locations  of  business  or
government end users.

    - Special access services. Special access services provide a link between an
      end-user  location and the POP of its IXC, or links between IXC POPs, thus
      bypassing the facilities of the incumbent LEC. These  services,  which may
      be ordered by either the long  distance  customer  or directly by its IXC,
      typically provide the customer better  reliability,  shorter  installation
      intervals,  and lower  costs  than  similar  services  offered by the LEC.
      Customer charges are based on the number of channel  termination's,  fixed
      and  mileage-sensitive  transport  charges,  and  costs  for any  services
      required to multiplex  (increase or decrease the bandwidth or transmission
      speed) circuits  (e.g.,  taking VGE circuits at 64 kilobits per second and
      stepping them up to a single DS-1 (1.54)  megabit  circuit,  which has the
      capacity  to carry up to 24 VGE  circuits  and is priced at a  significant
      discount to multiple VGE circuits over the same route).  A CAP may provide
      special  access  service  on an  on-net  basis by  connecting  an end user
      directly  to its fiber  backbone,  or on an off-net  basis by  reselling a
      portion of the LEC's  network to  terminate  the circuit at the end user's
      location  and  passing  the cost of the LEC  services  on  through  to the
      customer (who  realizes cost savings and network  benefits for the portion
      of the circuit  that is on the CAP's  network).  While  resulting in lower
      margins than on-net service due to the payout to the LEC,  off-net service
      can be provided to any customer within a LATA,  reducing the CAP's need to
      build pervasive network infrastructure.


                                     Page 19


<PAGE>



    - Switched  transport  services.  Switched transport services are offered to
      IXCs that have large volumes of long distance traffic  aggregated by a LEC
      switch at a central office where the CAP has  collocated its network.  The
      CAP  provides  dedicated  facilities  for  transporting  these  aggregated
      volumes of long distance  traffic from the LEC central office to the IXC's
      POP or between LEC central offices.  The flat monthly charge to the IXC is
      typically  lower than the  transport  fees  charged by the LEC,  which are
      typically  lower than the LEC  charges for special  access  services  that
      include a charge for  terminating  the traffic at the end user's  location
      and/or  the IXC  POP.  Switched  transport  services,  however,  are  also
      typically  associated  with higher volume orders  compared to most special
      access  orders,  thus  providing  potential  for large  monthly  recurring
      revenues to the CAP.

    - Private line services.  Private line services provide dedicated facilities
      between two end-user  locations  in the same  metropolitan  area (e.g.,  a
      central banking  facility and a branch office or a manufacturing  facility
      and its remote data processing  center) and are priced like special access
      services  (channel  termination  charges plus transport and any associated
      multiplexing  charges).  The Company  expects the demand for private  line
      service  to  increase  in  conjunction  with  higher  bandwidth   customer
      applications.

    High-Speed  Data Services.  The Company is developing and has begun offering
advanced high-speed data services,  including Internet access service, and plans
to offer frame relay and ATM services to businesses,  government entities,  IXCs
and ISPs in the Company's targeted markets.

    The Company expects that the majority of its initial high-speed data network
traffic will be composed of Internet  access  traffic from regional and national
ISPs, online service providers, major corporations and educational and financial
institutions.   The  Company   expects  frame  relay,   LAN-to-LAN  and  network
consolidation traffic to constitute the second largest element of its high-speed
traffic.  The Company  believes that during the next five years,  the high-speed
data market will evolve to higher bandwidth requirements and will accept new ATM
applications  and technology.  Therefore,  the Company believes the price of ATM
service will decrease relative to that of frame relay offerings. The Company

                                     Page 20


<PAGE>


expects the growth in demand for frame relay services to slow and the demand for
ATM services to increase.  While ATM is currently in its introductory  stage and
is generally  considered a premium service  offering,  the Company believes that
ATM technology affords ACSI the ability to consolidate its internal and customer
traffic on large backbone links. This  consolidation  will enable the Company to
reduce its overall cost of service and  position it to migrate its  customers to
higher  bandwidth as their demand  increases,  with minimal impact to customers'
applications.

ACSI  initially  plans to utilize  its ATM network to provide IP and frame relay
transport  for ISPs and major  customers.  The rapid  growth in the Internet has
strained  the  existing  network  infrastructure,  which was not  engineered  to
support  the  speeds or  volumes  of  traffic  that it now  bears.  The  current
infrastructure  supporting the Internet  protocol has been engineered to support
speeds of up to 2 mbps (slightly above T-1 speed), while many major IP customers
are  demanding  up to 45 mbps.  ATM offers an immediate  solution for  providing
efficient  transport of IP switching traffic (as well as frame relay),  allowing
ACSI to utilize  available  capacity long before it becomes cost effective for a
larger number of customers to deploy high  bandwidth  video,  voice,  WAN-to-WAN
connectivity  and  multimedia  applications  via ATM.  ACSI, as a  network-based
national  service  provider,  will be  positioned to offer  Internet  access and
connectivity  to  national,  regional and local ISPs,  as well as to  corporate,
government  and  institutional  customers  that  require  direct  access  to the
Internet for both internal  and/or  external  communications.  Early focus on IP
customers is also  expected to bolster  demand for the  Company's  dedicated and
local switched service  offerings;  a large regional ISP can require hundreds or
up to several  thousands of dial-up  lines and numerous T-1 and DS-3 circuits to
meet its subscribers' demands.

    Local Switched Voice Services. Following receipt of the requisite regulatory
approvals and when  cost-effective,  the Company  plans to offer local  switched
voice  services,  such as origination  and  termination of local calls,  Centrex
services,  PBX trunking and switched access services,  in certain of its markets
beginning in late 1996.




                                     Page 21


<PAGE>



    The Company intends to offer the following local switched voice services:

    - Local Telephone Services. The Company plans to offer small and medium size
      businesses local telephone  exchange service,  which will also include
      optional enhanced services (e.g. call waiting, caller ID and three-way
      conference calling).

    - PBX Trunking. For those customers that use PBX equipment in their business
      offices,  the Company plans to offer  services to switch  traffic  between
      ACSI's switch and a business customer's PBX, routing local,  intraLATA and
      interLATA phone calls according to the customers' specific requirements.

    - Centrex Services.  The Company plans to offer advanced  telecommunications
      services for those businesses  desiring the advanced features available in
      a PBX environment  without the investment in PBX premise equipment and its
      attendant  support staff.  The Company  intends to provide local dial tone
      services with  functionality  such as free internal  communications,  call
      forwarding, call transfer, conference call and speed dialing.

    - ISDN  Services.  ACSI also will  offer  ISDN  data  services  to its local
      customer base.  Those small  businesses that require higher  bandwidth for
      data   communications   needs  such  as  remote  file  transfer,   e-mail,
      collaborative computing, multi-media computing, telecommuting and Internet
      access  services,  will be able to  access  the lower  cost data  services
      provided  by ACSI.  As these  customers'  data  requirements  expand,  the
      Company's  advanced  data services can be offered,  thereby  expanding the
      Company's opportunity to increase revenues from existing customers.

    - Enhanced  Services.  The Company  already offers  enhanced voice messaging
      services on a  stand-alone  basis.  These and other  services will also be
      offered on an integrated basis with local switched services,  allowing the
      business  or   government   customer  to  meet  their   telecommunications
      requirements from a single source.


                                     Page 22


<PAGE>



    - Switched  Access.  The Company will offer  origination  and termination of
      long distance traffic between a customer premise and interexchange carrier
      via shared trunks utilizing the Company's local switch.

    Enhanced Voice Messaging  Services.  Market sources  estimate that the voice
messaging  services  marketplace  was  approximately  $1.4 billion in 1993.  The
market for voice  messaging  services is projected to grow at a compound  annual
rate of 13% to  approximately  $3  billion  nationally  in 2000.  Local  service
providers (i.e., incumbent local exchange carriers ("ILEC"),  CLECs and wireless
CATVs),  are expected to begin to displace voice messaging  services  offered by
IXCs. The Company is developing and has begun  offering,  on a limited basis, an
enhanced voice messaging service to small and mid-sized  business and government
end users.  The Company's  enhanced  voice  messaging  service can function as a
virtual PBX. The Company's  business voice  messaging  services will include its
First Line and First Line Plus  products.  The Company  also plans to market one
number  services  under the brand names  Virtualine  and  Virtualine  800. These
offerings will be targeted towards the small and medium sized companies  without
voice  messaging and those who are currently  seeking to upgrade their  existing
systems,  which marketplace has a significantly  lower penetration rate than the
larger  business  market.  The Company  believes  there are  significant  growth
opportunities in this market.  Industry sources estimate that in 1994 fewer than
25% of companies with less than 100 employees had voice  messaging  services and
that fewer than 12% of companies  with 50 employees or less had voice  messaging
services.

    The services for the Company's  enhanced  messaging will include basic voice
messaging,  follow-me call routing, virtual calling card services, fax services,
e-mail and paging notification services, and automated attendant services.

     - Voice messaging -- a basic voicemail  solution that allows the subscriber
       greater  flexibility,  including closed-end user group message forwarding
       and interface capabilities with the office attendant.



                                     Page 23


<PAGE>



     - Follow-me  call  routing -- the platform  can be  programmed  to find the
       subscriber by  forwarding  calls to  designated  phone  numbers  anywhere
       nationwide at the subscriber's discretion and control. The current market
       for  follow-me  messaging is  relatively  undersized,  as the  technology
       enabling  this  feature  has  only  recently  begun to  emerge.  However,
       industry sources estimate that this market will have grown from less than
       60,000  subscribers in 1995 to approximately  2.9 million  subscribers in
       1999.

     - Virtual  calling card -- the platform  enables the  subscriber to use the
       service to make outbound calls in response to messages  received  without
       disconnecting the call.

     - Fax  services  --  the  platform   enables  faxes  to  be  stored  and
       transmitted at the discretion of the subscriber.

     - Notification services -- at the subscriber's  discretion,  the arrival
       of voicemail can trigger pager or e-mail notification.

     - Automated  attendant  -- the  platform  can  provide  all of the above
       services, as well as call screening for the subscriber.

    The Company's  enhanced voice messaging  services will also provide links to
the Internet  through  ACSI's web site,  providing  users with the capability to
access their voice,  electronic  mail and fax messages.  In addition to offering
these services in its operational  network markets,  the Company may offer these
services in other  markets  where it does not intend to construct or has not yet
constructed a network.  The Company believes that such services will allow it to
develop  relationships with end users that may be potential customers for either
dedicated  services  or  switched  voice  services  that may be offered in these
markets in the future. However, unlike traditional telephone service,  customers
have not yet become fully  accustomed to use of voice  messaging  services,  and
neither the usage  ramp-up of these  services  nor their  market  acceptance  is
certain at this time.




                                     Page 24


<PAGE>



Sales and Marketing

    While a network is under  construction,  the Company's  salespeople  in each
city  begin  selling  on-network  interstate  dedicated  services  to the  major
business and government end users in that city, while the central  headquarters'
sales staff  concentrates  on selling  services to IXCs. The Company  expects to
initially price its services at a discount to the LEC's tariffs and sells on the
basis of cost savings to the customer. However, based on management's experience
in other  cities  where  CAPs  offer  services,  end  users are  expected  to be
attracted to the Company as a provider of back-up service for disaster  recovery
and a 100% fiber optic  network that can provide  generally  higher  quality and
more reliable service than can the incumbent LEC's network.

    The  Company's  sales efforts with respect to dedicated  services  emphasize
cooperation  between ACSI's  centralized  and local sales staff and the regional
and field sales staff of the IXCs. ACSI's  centralized sales staff works closely
with  senior  management  of  the  IXCs  to  establish   technical  and  service
requirements,  pricing,  and  quality  standards  on a  nationwide  basis,  then
coordinates at the local level specific orders for service to the IXC and/or its
end user  customers  in a given  market.  The Company is pursuing  multiple-city
service  arrangements  with a number of IXCs,  but no assurance can be made that
the Company will  ultimately be successful in negotiating  such  agreements with
any of the IXCs.

    The  Company  typically  has a  general  manager  and at least  one  account
executive  in each of its major  markets.  In many cases,  the  general  manager
oversees the operations and sales efforts of additional smaller markets that may
be  operated  as  satellites  of the  larger  market,  thus  reducing  operating
overhead. In the Company's experience, the sales process in the southern regions
of the country is largely affected by personal relationships,  and the Company's
ability to hire sales and management staff with existing customer  relationships
enhances its ability to penetrate the market.

    The  Company  plans to  utilize  two  separate  sales  forces to market  its
enhanced voice messaging  services to business and government  customers.  While
the Company's  dedicated services sales force will target their on-net customers
for

                                     Page 25


<PAGE>


such enhanced  services,  the enhanced voice sales staff will focus on potential
customers that are not connected to ACSI's network and on potential resellers of
the  Company's  services.   These  enhanced  voice  salespersons  will  also  be
responsible  for  encouraging  existing  accounts  to  subscribe  to  additional
features and to increase  their usage of those  features.  The Company  believes
that, once established,  the customer  relationships  will enhance the Company's
ability to market  local  switched  voice  services to these  customers  as such
services are offered. The Company's enhanced voice messaging sales force will be
augmented  by  additional  sales  personnel  as  local  switched   services  are
introduced on a market by market basis.

    The Company's  data services will be marketed by a separate sales group that
focuses on providing total solutions to a customer's data and networking  needs.
This marketing will require a more technically  sophisticated staff than for the
Company's dedicated,  enhanced and switched voice services. The Company believes
that it will be able to package and  cross-market  all of its  services  through
centralized  and local  account team  coordination,  making ACSI a  full-service
regional provider of local telecommunications services.

    As of June 30,  1996,  the  Company has entered  into  contracts  to provide
managed  services to ISPs for fees to the Company  totaling  approximately  $6.2
million.  In addition,  the Company has begun  providing  local area frame relay
services to customers via the Company's local fiber optic networks.

    ACSI is marketing its data  communications  services via national,  regional
and local sales personnel  supported by teams of sales  engineers.  In addition,
sales  representatives  in  the  Company's  network  services  group  (primarily
responsible  for selling  dedicated  circuits at the local  level)  cross-market
ACSI's data  communications  service offerings,  generating leads and supporting
the  development  and closure of  relationships  with  established  local access
customers.

    The  Company  also  plans  to  expand  its   distribution  of  certain  data
communications  service  offerings through  alternative  channels such as CATVs,
electric utilities, out-of-region RBOCs, and independent LECs. ACSI is currently
in discussions with several providers regarding reseller and private labeling

                                     Page 26


<PAGE>


arrangements involving the Company's data communications service offerings,  but
there  can be no  assurance  that any of these  discussions  will  result  in an
agreement to resell and private label such offerings.

Competition

    Dedicated Services. The Company operates in a highly competitive environment
and has no  significant  market  share in any market in which it  operates.  The
Company provides  dedicated services to large business and government end users.
In each of the metropolitan  areas to be served by the Company's  networks,  the
Company's  dedicated  services  will  compete  principally  with  the  dedicated
services  offered by the  incumbent  LEC. The LECs, as the  historical  monopoly
providers of local access and other services,  have long-standing  relationships
with their  customers and have financial and technical  resources  substantially
greater than those of the Company. The LECs also offer certain services that the
Company cannot currently  provide without first obtaining  requisite  regulatory
approvals.

    Competition  for  dedicated  services  is based on price,  quality,  network
reliability,  customer  service,  service  features  and  responsiveness  to the
customer's  needs. The Company believes that its management  expertise,  coupled
with  its  highly  reliable,  state-of-the-art  digital  networks,  which  offer
significant  transmission  capacity  at  competitive  prices,  will  allow it to
compete  effectively  with the LECs, which may have not yet fully deployed fiber
optic networks in many of the Company's  target markets.  The Company  currently
prices its services at a modest discount compared to the prices of the LEC while
providing a higher level of customer service. The Company's fiber optic networks
will provide both  diverse  access  routing and  redundant  electronics,  design
features  not widely  deployed  by the LEC's  networks  (which  were  originally
designed in tree and branch or star configurations).

    Other potential  competitors of the Company  include CATV operators,  public
utilities,  IXCs,  wireless  telecommunications  providers,  microwave carriers,
satellite  carriers,  teleports,  private networks built by large end users, and
other  CLECs.  With the passage of the  Telecommunications  Act and the entry of
RBOCs into the long  distance  market,  the Company  believes  that IXC's may be
motivated

                                     Page 27


<PAGE>


to construct  their own local  facilities  and/or  resell the local  services of
ACSI's competitors. For example, AT&T has announced its intention to offer local
services and has filed for state  certification  in markets that include,  among
others,  several of the Company's  markets.  Other CLECs or CATVs  currently are
competitors in various markets in which the Company has networks in operation or
under construction. Based on management's experience at other CLECs, the initial
market entrant with an operational  fiber optic CLEC network  generally enjoys a
competitive  advantage over other CLECs that later enter the market. The Company
expects  that there will be other CLECs  operating  in most,  if not all, of its
target  markets  and that  some of these  CLECs may have  networks  in place and
operating  before the Company's  network is  operational.  While it is generally
considered within the CLEC industry that being the first market entrant to offer
services typically enhances that CLEC's competitive  advantage relative to CLECs
that enter the  market at a later  time,  the  Company  recognizes  that in some
instances  it  may  have  other  competitive  advantages  (such  as  a  superior
right-of-way  arrangement  or  large  customer  commitments)  that  it  believes
outweighs  another CLEC's first to market  advantage;  in these  instances,  the
Company may elect to enter a market where an established CLEC already exists.

    High-Speed  Data Services.  The Company's  competitors  for high-speed  data
services  include the major IXCs,  other CLECs,  and various  providers of niche
services  (e.g.,  Internet  access  providers,  router  management  services and
systems  integrators).  In general, none of these competitors currently offers a
comprehensive  solution for a customer's potential data service requirements,  a
core  premise of the  Company's  data  strategy.  The Company  intends to pursue
arrangements  with  other data  service  providers  to  leverage  each  entity's
strengths in a given market or segment of the service chain by bundling elements
of  complete  data  solutions  (i.e.,  bundle its local  access and frame  relay
services with an IXC's longhaul transport  services).  The  interconnectivity of
the Company's markets will create additional  competitive  advantages over other
data  service  providers  that must obtain  local access from the LEC or another
CLEC in each  market  or that  cannot  obtain  intercity  transport  rates on as
favorable terms as the Company.


                                     Page 28


<PAGE>



    There is significant competition for Internet access and related services in
the United  States,  with few barriers to entry other than capital.  The Company
expects  that  competition  will  increase  as  existing  services  and  network
providers  and new entrants  compete for  customers.  ACSI's  current and future
competitors  include  telecommunications  companies,  including the RBOCs, IXCs,
other  CLECs and  CATVs,  and other  Internet  access  providers,  such as UUNET
Technologies,  Inc., Advanced Network & Services, Inc., BBN Corporation,  NETCOM
On-Line Communications  Services, Inc. and PSINet Inc. Many of these competitors
have greater financial, technical, marketing and human resources, more extensive
infrastructure and stronger customer and strategic  relationships than ACSI. The
Company believes that it will have a competitive  advantage in offering Internet
access services to those ISP and commercial  customers in markets where ACSI has
local fiber optic network facilities relative to other Internet access providers
that must purchase  local loop access from the LEC, ACSI or another CLEC in that
market.  Additionally,  ACSI believes that customers with operations in multiple
locations  served by ACSI local fiber  optic  networks  will find  single-source
Internet access services from ACSI attractive and more cost effective.

    All of the seven  original  RBOCs  offer at least  some  basic  frame  relay
service.  The Company  believes  that most IXCs offer  substantial  domestic and
international frame relay service, generally positioned to provide a significant
savings over  traditional  private  lines.  Other frame relay service  providers
include MFS and  Intermedia  Communications.  A number of  companies,  primarily
CLECs, have announced plans to offer frame relay service. ATM offerings are only
beginning  to emerge.  ATM  service is  currently  being  offered by most of the
original RBOCs,  MFS, AT&T, MCI, Sprint and WilTel,  Inc. A number of other data
communications providers,  CLECs and facilities-based CATVs have announced their
intentions to offer ATM services in the future.

    A number of equipment vendors,  systems  integrators and Internet access and
service  providers offer  components of managed  services.  The Company believes
that it will have a competitive advantage over those managed services providers

                                     Page 29


<PAGE>


that do not have local loop  facilities  that means they  cannot  provide a full
solution for customers.

    Local  Switched Voice  Services.  In all of the markets where the Company is
currently  operating or plans to operate,  the LEC  currently is a de jure or de
facto monopoly  provider of local switched voice  services.  The Company expects
that the  enactment  of the  Telecommunications  Act will enable  CLECs,  CATVs,
electric utilities,  cellular and wireless providers,  and others to offer local
switched  voice services in  competition  with the LECs in the Company's  target
markets.  The Company  believes  that its strategy to leverage its basic network
infrastructure into higher margin service offerings, migrating to local switched
voice services,  will allow it to procure a profitable share of the market.  The
Company's ability to cross-market services will create opportunities to increase
margins by migrating  customers from  off-network to on-network  status.  As the
number of end users in a given  off-network  building  increases for all service
offerings,  the  economics  improve  to the  point  where the  capital  costs of
connecting the building to ACSI's network are more than covered by the increased
margins represented by retaining the portion of customer revenue paid out to the
LEC.

    Enhanced Voice Messaging Services.  Competition for enhanced voice messaging
services  primarily  consists of basic voice mail  services  offered by LECs and
cellular  providers  in  connection  with  their  core  offerings  and  customer
premise-based  voice  mail  platforms.  The  voice  mail  offerings  of the LECs
typically  have  limited  features  and  flexibility  compared  to the  services
contemplated  by the Company;  thus,  the Company  believes  its enhanced  voice
messaging  services  and  focused  sales  efforts  should  be able to  penetrate
effectively  those  segments  of the small and  mid-sized  business  market that
require more features  and/or  flexibility  than  services  offered by the LECs.
Customer  premise-based  platform  voice  mail  offerings  typically  require  a
relatively large up front capital investment and recurring maintenance costs and
are generally  marketed to large  companies  rather than the small and mid-sized
end users targeted by the Company.



                                     Page 30


<PAGE>



Regulation

Overview

    The Company's  services are subject to federal,  state and local regulation.
The  FCC   exercises   jurisdiction   over  all   facilities   and  services  of
telecommunications  common  carriers to the extent those  facilities are used to
provide,  originate or terminate  interstate  or  international  communications.
State regulatory  commissions retain jurisdiction over the Company's  facilities
and services to the extent they are used to  originate  or terminate  intrastate
communications.  Local governments may require the Company to obtain licenses or
franchises  regulating  use of public  rights-of-way  necessary  to install  and
operate its networks.

    The  allocation  of  jurisdiction  between  federal and state  regulation of
dedicated  facilities  carrying both  interstate and  intrastate  traffic raises
definitional  issues.  Although  the  FCC  generally  does  not  rule  as to the
jurisdictional nature of a carrier's traffic, under FCC practice,  such services
are considered to be jurisdictionally  interstate if at least 10% of the traffic
is  interstate  in nature.  Virtually  all  dedicated  services  provided by the
Company  between  long  distance  carrier  POPs,  and between IXCs and their end
users,  satisfy this  requirement  and are  jurisdictionally  interstate  in the
opinion of the Company.


Recent Federal Legislation

    On   February   1,   1996,   the   U.S.   Congress   enacted   comprehensive
telecommunications  reform  legislation,  which the President signed into law as
the Telecommunications Act of 1996 on February 8, 1996 (the  "Telecommunications
Act").  The  Telecommunications  Act  amends the  Communications  Act of 1934 to
impose a legal duty upon incumbent LECs to provide  interconnection  (i) for the
transmission and routing of telephone exchange service and exchange access, (ii)
at any  technically  feasible point within the LECs'  network,  (iii) that is at
least equal in quality to that provided by the LEC to itself,  its affiliates or
any other party to which the LEC  provides  interconnection,  and (iv) at rates,
terms and conditions that are just, reasonable and nondiscriminatory.  LECs also
are required

                                     Page 31


<PAGE>


under the new law to provide  nondiscriminatory access to network elements on an
unbundled basis at any technically  feasible point, to offer its local telephone
services  for  resale at  wholesale  rates,  and to  facilitate  collocation  of
equipment necessary for competitors to interconnect with or access the unbundled
network elements.

    The   Telecommunications   Act   also   imposes   a   legal   duty   on  all
telecommunications  carriers  (including  LECs and CLECs) (i) not to prohibit or
unduly  restrict  resale of their  services;  (ii) to provide dialing parity and
nondiscriminatory  access to telephone  numbers,  operator  services,  directory
assistance  and  directory  listings;  (iii) to afford  access to poles,  ducts,
conduits  and  rights-of-way;  and  (iv) to  establish  reciprocal  compensation
arrangements for the transport and termination of telecommunications.

    In addition,  under the terms of the Telecommunications Act, the RBOC's must
offer  terms and  conditions  for  interconnection  that  satisfy  a  prescribed
14-point  checklist  before  they may  obtain  authority  to  provide  interLATA
services  within  their  operating  regions.  In  addition  to  the  obligations
discussed  in the  preceding  paragraphs  in this  subsection,  RBOCs must offer
interconnection that includes each of the following:

     -    local loop  transmission  from the  central  office to the  customer's
          premises, unbundled from local switches, or other services;

     -    local switching, unbundled from transport, local loop transmission, or
          other services;

     -    nondiscriminatory   access  to  911  and  E911   services,   directory
          assistance services and operator services;

     -    white page directory listings;

     -    nondiscriminatory assignment of telephone numbers;




                                     Page 32


<PAGE>



     -    nondiscriminatory  access  to  data  bases  and  associated  signaling
          necessary for call routing or completion; and

     -    interim  number  portability  through remote call  forwarding,  direct
          inward dialing trunks or other comparable arrangements.

    The Company believes that this legislation is likely to enhance  competition
in the local  telecommunications  marketplace  through  (i) removal of state and
local entry barriers,  (ii) requirements that LECs provide  interconnections  to
their  facilities,  (iii)  facilitation  of the  process  of  changing  from LEC
services to those  offered by CLECs and (iv) access to  rights-of-way.  Although
there can be no  assurances,  the Company  expects  further growth to the extent
that  LECs  begin to  compete  with  IXCs for long  distance  services,  thereby
providing  IXCs with a competitive  incentive to move access  business away from
LECs to CLECs, such as ACSI. However, the legislation also has granted important
benefits to the LECs. The LECs have substantial new pricing  flexibility.  RBOCs
have  regained the ability to provide long  distance  services and have obtained
new rights to provide  certain cable TV services.  In addition,  the legislation
may encourage IXCs to construct their own local  facilities  and/or resell local
services in order to compete with the bundled local and long  distance  services
to be offered by the LECs as a result of the Telecommunications Act.

    The  Telecommunications  Act also amends the  Communications  Act of 1934 to
preempt any state or  municipal  action  requiring  cable  companies to obtain a
franchise  before  offering   telecommunications   services  or  allowing  their
franchise  fees  to  be  based  on  their   telecommunications   revenues.   The
Telecommunications  Act also  lifts  restrictions  previously  contained  in the
Public  Utility  Holding  Company Act of 1935,  which had  previously  prevented
certain   registered   utility   holding   companies  from   diversifying   into
telecommunications  services. These changes will tend to enhance the competitive
position of the LECs and increase local  competition  by IXCs,  CATVs and public
utility companies, which may have a material adverse effect on the Company.



                                     Page 33


<PAGE>



    The FCC has opened numerous proceedings intended to implement the provisions
of the  Telecommunications Ac, including its CC Docket No. 96-98 for adoption of
rules relating to local network interconnection,  unbundling,  and resale, which
is discussed hereunder.


Federal Regulation

    In general,  the FCC has a policy of encouraging  entry of new  competitors,
such  as  the  Company,  in  the  telecommunications   industry  and  preventing
anti-competitive practices.

    The FCC has established different levels of regulation for dominant carriers
and  nondominant  carriers.  For  domestic  common  carrier   telecommunications
regulation,  large  LECs  such as GTE and the  RBOCs  are  currently  considered
dominant  carriers,  while CLECs such as the Company are considered  nondominant
carriers.  As a  nondominant  carrier,  the  Company  may  install  and  operate
facilities for the transmission of domestic  interstate  communications  without
prior FCC authorization.  Services of nondominant  carriers have been subject to
relatively limited regulation by the FCC, primarily  consisting of the filing of
tariffs and periodic reports  concerning the carrier's  interstate  circuits and
deployment of network facilities.  However,  the FCC has proposed adopting rules
that would  preclude IXCs from filing  tariffs and is considering a request that
the proposed rules also be applicable to CLECs. Moreover, the Company must offer
its interstate  services on a  nondiscriminatory  basis,  at just and reasonable
rates, and remains subject to FCC complaint procedures.

    Pursuant to these FCC  requirements,  the Company has filed and  maintains a
tariff for its interstate  services with the FCC. All of the  interstate  retail
"basic"  services (as defined by the FCC)  provided by the Company are described
therein.  "Enhanced" services (as defined by the FCC) need not be tariffed.  The
Company has an  "enhanced"  frame relay  product,  which is not contained in the
Company's



                                     Page 34


<PAGE>


current  FCC  tariff.  A tariff  for a "basic"  frame  relay  offering  is under
development.  The Company  believes that its voice messaging and Internet access
products are "enhanced" services which need not be tariffed.

    In 1991, the FCC replaced  traditional  rate of return  regulation for large
LECs with price cap regulation. Under price caps, LECs can only raise prices for
certain  services,  including  interconnection  services provided to CLECs, by a
small percentage each year. In addition, there are constraints on the pricing of
LEC services that are  competitive  with those of CLECs.  On September 14, 1995,
the FCC proposed to adopt a three-stage plan that would substantially reduce LEC
price cap regulation as local markets become increasingly  competitive.  The FCC
proposed to  immediately  eliminate  the lower service band index limit on price
reductions  within service  categories,  modify tariff filing  requirements  and
revise  the  structure  of price cap  baskets.  The FCC also  sought  comment on
whether LECs should be permitted to expand use of option  discount plans such as
volume and term  discounts.  Under the FCC's  proposal,  during the second phase
certain LEC services could be removed from price cap regulation and regulated on
a  streamlined  basis if they were deemed to be subject to  competition.  In the
third stage,  LECs would be granted  nondominant  status.  Adoption of the FCC's
proposal  to   significantly   reduce  its   regulation  of  LEC  pricing  would
significantly  enhance  the  ability of LECs to compete  against the Company and
could have a material adverse effect on the Company.

    The FCC has granted LECs additional  flexibility in pricing their interstate
special and switched  access  services on a specific  central  office by central
office basis. Under this pricing scheme,  LECs may establish pricing zones based
on access traffic density and charge different prices for each zone. The Company
anticipates  that this pricing  flexibility  will result in LECs lowering  their
prices in high traffic density areas, the probable arena of competition with the
Company.  The Company also  anticipates  that the FCC will grant LECs increasing
pricing flexibility as the number of interconnections and competitors increases.
In a concurrent  proceeding on transport  rate  structure  and pricing,  the FCC
enacted interim pricing rules that  restructure LEC switched  transport rates in
order to facilitate competition for switched access.


                                     Page 35


<PAGE>



    On February 15, 1996,  the FCC released an order  granting in part Ameritech
Corporation's  (one of the seven RBOCs) request for a waiver of the Commission's
access  charge  rules  sufficient  to grant it  certain  access  charge  pricing
flexibility.  The FCC permitted Ameritech to "bulk bill" IXCs for the portion of
the  Carrier  Common Line  Charge  ("CCLC")  that  contributes  to the  National
Exchange Carriers Association Long Term Support Fund for high-cost carriers. The
FCC also allowed Ameritech to reduce the transport  interconnection  charge on a
geographically  deaveraged  basis in the Chicago and Grand Rapids LATAs,  on the
basis that Ameritech faces actual  competition  from CCLCs in those LATAs.  Such
access charge pricing  flexibility is likely to make it more difficult for CLECs
to compete against  Ameritech in the affected  areas.  Although the Company does
not provide service in the Ameritech operating region, if the FCC grants similar
access pricing flexibility to other LECs, it could become more difficult for the
Company to compete for access traffic.

FCC   Rules    Implementing   the   Local   Competition    Provisions   of   the
Telecommunications Act

    On August 8,  1996,  the FCC  released  both a First  Report and Order and a
Second  Report and Order and  Memorandum  Opinion and Order in its CC Docket No.
96-98 (combined,  the  "Interconnection  Orders")  establishing new policies and
rules  governing  local  telephone  services  interconnection  and  competition.
Although the new rules were scheduled to become effective on September 30, 1996,
numerous parties to the rulemaking appealed the Interconnection  Orders, and the
U.S.  Court of Appeals  for the Eighth  Circuit  ("Court of  Appeals")  issued a
temporary  stay of the effect of the  Interconnection  Orders on  September  27,
1996.  The  temporary  stay will defer  effectiveness  of the new rules until at
least  October 3, 1996,  during  which time the Court of Appeals  will  consider
whether to extend the stay for the duration of the appeal process.  In addition,
some parties have asked the FCC to stay its own order,  and multiple parties are
expected to file petitions with the FCC on September 30, 1996, asking the agency
to  reconsider  and revise  portions of the  Interconnection  Orders.  Moreover,
several   energy   utilities   have   initiated   litigation   challenging   the
constitutionality of the Telecommunications Act itself.


                                     Page 36


<PAGE>



    The Interconnection Orders establish a framework of minimum,  national rules
that will enable state Public Service Commissions  ("PSCs") and the FCC to begin
implementing  many of the local  competition  provisions  of the Act.  The FCC's
decision in CC Docket No.  96-98 is the first part of a trilogy of actions  that
the Commission contends will promote competition in the local telecommunications
market.  The  second  part is reform of the  system for  funding  and  providing
universal  service  support (as  described  hereafter).  The FCC stated that the
third part of the trilogy of actions consists of further reform of its rules for
establishing interexchange access charges. The FCC has stated that a competitive
telecommunications  market  requires  that  access  charges  be  moved  to  more
economically efficient levels.

    As described in greater detail below, in its Interconnection Orders, the FCC
prescribed  certain  minimum  points  of  interconnection  necessary  to  permit
competing  carriers to choose the most efficient points at which to interconnect
with the ILECs'  networks.  In addition,  the Commission  also adopted a minimum
list of unbundled network elements that ILECs must make available to competitors
upon request.  The Commission  also set forth a methodology for states to use in
establishing  rates for  interconnection  and the purchase of unbundled  network
elements,   and  a   methodology   for   states   to  use  when   applying   the
Telecommunications  Act's "avoided cost standard" for setting  wholesale  prices
with  respect  to retail  services.  The  following  summarizes  the key  issues
addressed in the Interconnection Orders.

    Interconnection.  Section 251(c)(2) of the  Telecommunications  Act requires
ILECs to provide interconnection to any requesting telecommunications carrier at
any technically  feasible point. The  interconnection  must be at least equal in
quality to that  provided by the ILEC to itself or its  affiliates,  and must be
provided  on  rates,  terms  and  conditions  that  are  just,   reasonable  and
nondiscriminatory.  The FCC  determined  that the term  "interconnection"  under
Section  251(c)(2)  refers only to the physical  linking of two networks for the
mutual exchange of traffic. The Commission  concluded that, at a minimum,  ILECs
must provided interconnection at


                                     Page 37


<PAGE>



     -    the line side of a local switch (i.e., the main distribution  frame)
     -    the trunk side of a local  switch
     -    the trunk interconnection  points for a tandem switch
     -    central office cross-connect  points
     -    out-of-band  signaling  transfer  points
     -    the points of access to unbundled network elements

The   Commission   found   that   telecommunications    carriers   may   request
interconnection  to  provide  telephone  exchange  service  or  exchange  access
service,  or both.  If the request is for such  purposes,  the ILEC must provide
interconnection to any telecommunications carrier, including IXCs and commercial
mobile radio service (CMRS) providers.

    Access to Unbundled  Elements.  Section 251(c)(3) of the  Telecommunications
Act  requires  ILECs to  provide  requesting  telecommunications  carriers  with
nondiscriminatory  access  to  network  elements  on an  unbundled  basis at any
technically  feasible  point on  rates,  terms,  and  conditions  that are just,
reasonable and  nondiscriminatory.  The FCC identified the following minimum set
of network elements that ILECs must unbundle and provide access to:

     -    network  interface  devices
     -    local  loops
     -    Local and tandem switches (including all software features provided by
          such switches
     -    interoffice  transmission  facilities
     -    signaling and call-related  database  facilities
     -    operations  support  systems and  information
     -    operator and directory assistance facilities

States may require ILECs to provide  additional network elements on an unbundled
basis,  pursuant  to a bona fide  request  by a  telecommunications  carrier  or
otherwise.  The FCC also  ruled  that ILECs  must  provide  requesting  carriers
nondiscriminatory  access to certain  operations support systems and information
that  ILECs use to provide  telecommunications  services  commercially,  such as
information required for pre-ordering, ordering, provisioning, billing and

                                     Page 38


<PAGE>


maintenance  and  repair  services.  Moreover,  the new rules  require  ILECs to
provide access to network elements in a manner that allows  requesting  carriers
to  combine  such  elements  as  they  choose.   Thus,   ILECs  may  not  impose
restrictions,  limitations  or  requirements  upon the use of unbundled  network
elements by other carriers.

    Methods  of  Obtaining  Interconnection  and Access to  Unbundled  Elements.
Section  251(c)(6)  of the  Telecommunications  Act  requires  ILECs to  provide
physical  collocation of equipment  necessary for  interconnection  or access to
unbundled  network  elements  at the ILEC's  premises,  except that the ILEC may
provide  virtual  collocation if it  demonstrates  to the state  commission that
physical  collocation is not practical for technical reasons or because of space
limitations.  Under the FCC's  Interconnection  Orders,  ILECs are  required  to
provide any technically  feasible method of  interconnection or access requested
by  a  telecommunications  carrier,  including  physical  collocation,   virtual
collocation,  and interconnection at meet points. The Commission  adopted,  with
certain   modifications,   the  existing   physical   and  virtual   collocation
requirements  it  adopted  in the early  1990s in its  Expanded  Interconnection
proceeding.

    Pricing  Methodologies.  The  Telecommunications  Act requires the states in
arbitrating  interconnection  disputes not resolved by negotiation to set prices
for    interconnection    and   unbundled    elements   that   are   cost-based,
nondiscriminatory  and may include a reasonable  profit.  To help the state PSCs
accomplish  this,  the FCC  concluded  that the  state  commissions  should  set
arbitrated rates for interconnection and access to unbundled elements pursuant a
forward-looking  economic cost pricing  methodology.  The FCC concluded that the
prices that new entrants pay for  interconnection  and unbundled elements should
be based on the ILEC's  Total  Element  Long-Run  Incremental  Cost  (TELRIC) of
providing  a  particular   network   element,   plus  a   reasonable   share  of
forward-looking  joint and common  costs.  States  will  determine,  among other
things, the appropriate risk-adjusted cost of capital and depreciation rates.

The TELRIC-based costing and pricing methodology described above must be used to
set permanent rates for both  interconnection  and unbundled  network  elements.
However,   recognizing   that  many  states   already  have  begun   arbitration
proceedings, and that TELRIC cost information may not be available for

                                     Page 39


<PAGE>


consideration  within the statutory time frame for  arbitrating  interconnection
disputes,  the FCC  authorized  the  states to use  certain  default  proxies as
ceilings on the pricing for local  interconnection and unbundled network element
pricing. If a proxy default is used, however, the states must replace such rates
with  TELRIC-based  rates on a going  forward  basis once they have  completed a
review of the TELRIC cost studies.

    With the exception of a default  proxies for switching,  which are expressed
as a rate range, the FCC's default proxies are maximum rates.  State commissions
are free to establish rates below the ceilings. The FCC's default proxies are as
follows:

   Element                         FCC Proxy

   Local Loops                     Varies by state, with a low of $9.83 (Mass.)
                                   and a high of $25.36 (N.D.)

   Switching                       $0.002 to $0.004/min. plus an additional
                                   $0.001515/min. if tandem switching is used

   Local Transport                 Existing tariffed interstate dedicated
                                   switched access  transport charges, with
                                   adjustments when tandem switched transport
                                   is used

   Signaling/Database Access       Existing tariffed interstate charges

   Collocation                     Existing rates established in the FCC's
                                   Expanded Interconnection proceeding

Notably, the FCC's default ceiling applicable to unbundled loop rates applies to
the rated average of all loop rates  established  for regions  within the state.
The FCC requires  that states  establish at least three  density  zones for loop
rates. A state is within the ceiling if the average of its loop prices, weighted
according  to the number of loops in each zone,  is at or below the proxy level.
The FCC did not establish  default proxies for the  non-recurring  charges often
associated with the

                                     Page 40


<PAGE>


initial  installation of unbundled loops (or other network elements),  which are
often relatively high in the Company's experience.

    Access Charges for Unbundled Switching and Access Charge Reform.  Nothing in
the FCC's Interconnection  Orders alter the collection of access charges paid by
an interexchange  carrier under Part 69 of the FCC rules, when the ILEC provides
exchange access service to an interexchange carrier,  either directly or through
ILEC service  resale.  Because access charges are not included in the cost-based
prices for unbundled  network  elements,  and because certain portions of access
charges currently support the provision of universal  service,  until the access
charge reform and universal  service  proceedings  have been completed,  the FCC
plans to continue providing for access charge recovery with respect to use of an
ILEC's unbundled switching element, for a defined period of time.

    Under the new rules,  ILECs will recover from all  interconnecting  carriers
the  carrier  common  line  charge  and a charge  equal to 75% of the  transport
interconnection  charge for all interstate  minutes  traversing the ILECs' local
switches for which the  interconnecting  carriers pay unbundled  network element
charges.  This aspect of the rules will expire at the  earliest  of: 1) June 30,
1997;  2) issuance of final  decisions by the FCC in the  universal  service and
access reform proceedings;  or 3) if the ILEC is a Bell Operating Company (BOC),
the  date  on  which  that  BOC  is   authorized   under   Section  271  of  the
Telecommunications  Act to provide in-region  interLATA  service,  for any given
state. The FCC is expected to issue a Notice of Proposed Rulemaking establishing
a  proceeding  to reform its  access  charge  rules in  November  1996,  with an
objective of issuing  revised access charge rules by June 30, 1997.  Although it
is  impossible  to predict  the outcome of the  upcoming  access  charge  reform
proceeding,  the Company  believes that it is likely that the planned  reform of
the FCC's access charge rules will result ultimately in a significant  reduction
in the rate levels of interstate switched access charges.

Resale.  The  Telecommunications  Act requires all ILECs to offer for resale any
telecommunications  service that the carrier  provides at retail to  subscribers
who are not telecommunications  carriers.  The Telecommunications  Act's pricing
standard for wholesale  rates requires  state PSCs to identify which  marketing,
billing,  collection  and other costs will be avoided or that are  avoidable  by
ILECs

                                     Page 41


<PAGE>


when they provide  services  wholesale,  and calculate the portion of the retail
rates for those  services  that is  attributable  to the avoided  and  avoidable
costs.  The  application  of this  definition is left to the states.  If a state
elects not to implement the  methodology,  it may elect,  on an interim basis, a
discount rate from within a default range of discount  rates  established by the
FCC. The  Commission  established a default  discount range of 17-25% off retail
prices.  State PSCs will be able to set specific rates within that range, in the
exercise of their discretion.

    Transport and Termination.  The Telecommunications Act requires that charges
by LECs for the transport and termination of local traffic  delivered to them by
competing  LECs be  cost-based.  The  FCC  concluded  that  state  PSCs,  during
arbitrations,  should set  symmetrical  prices based on the LECs' TELRIC cost of
providing the service.  The FCC established a default range of $0.002-$0.004 per
minute for end officer  termination for states which have not conducted a TELRIC
cost study. The Commission found  significant  evidence in the record in support
of the  lower  end  of the  ranges.  In  addition,  the  Commission  found  that
additional  reciprocal  charges  could  apply to  termination  through  a tandem
switch.  The default  ceiling for tandem  switching is $0.0015 per minute,  plus
applicable charges for transport from the tandem switch to the end office.

    Access to Rights of Way.  The FCC also  amended its rules to  implement  the
pole attachment  provisions of the  Telecommunications  Act.  Specifically,  the
Commission    established    procedures   for   nondiscriminatory    access   by
telecommunications  carriers and poles, ducts, conduits, and rights-of-way owned
by utilities or LECs. The Interconnection  Orders include several specific rules
as well as a number  of more  general  guidelines  designed  to  facilitate  the
negotiation and mutual  performance of fair,  pro-competitive  access agreements
without the need for regulatory intervention. Additionally, an expedited dispute
resolution procedure is provided when good faith negotiations fail.

ACSI is unable to predict  whether the new rules and  policies  described  above
will be  revised  by the FCC on  reconsideration,  be stayed or set aside by the
Court of  Appeals,  or  whether  another  federal  court  will  find some or all
portions of the Telecommunications Act to be unconstitutional.


                                     Page 42


<PAGE>



    Universal Service Reform.  Section 254(a) (1) of the  Telecommunications Act
requires  the FCC to  institute a  Federal-State  Joint Board for the purpose of
recommending a revised universal service funding program to the FCC. By means of
a Notice of Proposed Rulemaking and Order Establishing Joint Board issued in its
CC Docket No. 96-45 on March 8, 1996,  the FCC  proceeded  to  establish  such a
Joint Board and seek public  comment on a new or  reformed  system of  universal
service  support.  While it is  impossible  to predict  what system of universal
service support will ultimately result from this effort, the  Telecommunications
Act  requires  that all  telecommunications  carriers,  including  the  Company,
contribute to the funding effort on an equitable and nondiscriminatory basis, in
an amount  sufficient to preserve and advance  universal  service  pursuant to a
specific or predictable universal service funding mechanism.  The Company cannot
at this time predict the level or form of its  mandatory  contribution,  but the
Company  believes  that it will likely be a significant  expenditure.  The Joint
Board is expected to release its proposal  for  universal  service  reform on or
about November 8, 1996, and the proceeding must be concluded by May 8, 1997.


State Regulation

    The Company  believes that most, if not all,  states in which it proposes to
operate will require a certification or other  authorization to offer intrastate
services. Many of the states in which the Company operates or intends to operate
have not yet addressed  issues relating to the regulation of CLECs.  Some states
that have  authorized the competitive  provision of dedicated  services have not
authorized the provision of competitive local switched services. Some states may
require authorization to provide enhanced services.

In some states,  existing state statutes,  regulations or regulatory  policy may
preclude some or all forms of local service competition.  The Telecommunications
Act contains  provisions  that prohibit  states and localities  from adopting or
imposing  any  legal  requirement  that  may  prohibit,  or have the  effect  of
prohibiting,  the ability of any entity to provide any  interstate or intrastate
telecommunications  service.  The FCC is  required  to preempt any such state or
local requirements to the extent necessary to enforce the Telecommunications

                                     Page 43


<PAGE>


 Act's open market  entry  requirements.  States and  localities  may,  however,
continue to regulate the  provision of intrastate  telecommunications  services,
and,  presumably,  require  carriers to obtain  certificates  or licenses before
providing service.

    The Company currently has obtained intrastate authority for the provision of
dedicated services in Alabama, Arkansas,  Florida, Georgia, Kentucky,  Maryland,
Nevada,  New  Mexico,  South  Carolina,  Tennessee  and Texas.  The  Company has
applications pending before the PSCs in Arizona, Colorado, Louisiana,  Missouri,
Oklahoma and Virginia for intrastate dedicated services authority. To the extent
the Company expands the scope of its intrastate  services in the future in these
states to include  the full range of local  switched  services,  the  Company is
required  to seek  additional  authorization  from such PSCs.  The  Company  has
applied  for  authorization  to provide  local  switched  services  in  Arizona,
Arkansas,  Colorado,  Kentucky,  Louisiana,  Mississippi,  Missouri, New Mexico,
Oklahoma,  South  Carolina and  Virginia and has been granted such  authority in
Alabama,  Florida,  Georgia,  Maryland,  Nevada, South Carolina,  Tennessee, and
Texas.   There  can  be  no  assurances   that  the  Company  will  receive  the
authorizations it is currently seeking, or will seek, from these PSCs.

    In most states,  the Company is required to file tariffs  setting  forth the
terms, conditions and prices for services that are classified as intrastate.

    The  Company  believes  that,  as  the  degree  of  intrastate   competition
increases,  the states will offer the LECs increasing pricing flexibility.  This
flexibility may present the LECs with an opportunity to subsidize  services that
compete with the Company's services with revenues generated from non-competitive
services,  thereby allowing LECs to offer  competitive  services at prices below
the cost of providing  the  service.  The Company  cannot  predict the extent to
which this may occur or its impact on the Company's business.

    Local  Interconnection.  The  Telecommunications Act imposes a duty upon all
incumbent  LECs to negotiate  in good faith with  potential  interconnectors  to
provide  interconnection  to the ILEC  network,  exchange  local  traffic,  make
unbundled  basic local  network  elements  available,  and permit resale of most
local services. In the event that negotiations do not succeed, the Company has a
right to

                                     Page 44


<PAGE>


seek state PSC arbitration of any unresolved issues. The state PSC must conclude
the  arbitration  within  nine months of the date upon which the  incumbent  LEC
received the  Company's  initial  request for  interconnection.  The Company has
negotiated  partial  agreements  with  BellSouth for local  interconnection  and
access to unbundled  elements in South  Carolina,  Georgia,  Florida,  Kentucky,
Tennessee,  Alabama,  Mississippi and Florida.  Similar partial  agreements have
been reached with Southwestern Bell for Arkansas and Texas, with US West for New
Mexico  and  Arizona  and with  GTE for  Texas,  Kentucky  and  Florida.  In all
instances,  the  Company  was  forced  to seek  state PSC  arbitration  for some
material   issues.   State   commission   arbitration   of  ACSI   requests  for
interconnection  are currently  underway in the twelve  states listed above.  In
addition,  the Company has initiated formal  interconnection  negotiations  with
Bell Atlantic and Sprint/Central Telephone.

Local Government Authorizations

The  Company is  required  to obtain  street use and  construction  permits  and
licenses and/or  franchises to install and expand its fiber optic networks using
municipal rights-of-way.  In some municipalities where the Company has installed
or  anticipates  constructing  networks,  it will be  required to pay license or
franchise  fees based on a percentage of gross  revenues or on a per linear foot
basis, as well as post performance  bonds or letters of credit.  There can be no
assurance  that the Company  will not be required to post  similar  bonds in the
future,  nor is there any assurance  that,  following the expiration of existing
franchises,  fees will remain at their current levels. In many markets, the LECs
do not pay such  franchise  fees or pay fees  that are  substantially  less than
those required to be paid by the Company.  To the extent that competitors do not
pay the same level of fees as the Company, the Company could be at a competitive
disadvantage. However, the Telecommunications Act provides that any compensation
extracted by states and localities for use of public rights-of-way must be "fair
and  reasonable,"  applied on a  "competitively  neutral  and  nondiscriminatory
basis" and be "publicly disclosed" by such government entity. Termination of the
existing  franchise or license  agreements prior to their expiration dates could
have a materially adverse effect on the Company.



                                     Page 45


<PAGE>



Employees

    As of June 30, 1996, the Company  employed a total of 199  individuals  full
time. The Company  believes that its future success will depend on its continued
ability to attract and retain highly  skilled and qualified  employees.  None of
the Company's  employees is subject to a collective  bargaining  agreement.  The
Company believes that its relations with its employees are good.

Item 2.  Properties

    The Company leases a 23,925 square foot office space in Annapolis  Junction,
Maryland  for its  corporate  headquarters  and  network  management  center for
$28,647  per  month  as of June 30,  1996,  subject  to  periodic  increases  in
specified  amounts.  The  lease  expires  in 2002,  but may be  renewed  for two
additional  five-year  terms.  The Company's  field office,  housing its network
development and real estate development operations, is located in a 1,358 square
foot  facility in  Lombard,  Illinois  which the  Company  leases for $1,643 per
month, subject to periodic increases in specified amounts. This lease expires on
January 31, 1999.

As of June 30, 1996, the Company's  various  operating  subsidiaries have leased
facilities  for their offices and network nodes.  The aggregate  monthly rent on
these properties is approximately  $136,444.  The various leases expire on dates
ranging from February 28, 1998, to October 30, 2005. Most have renewal  options.
Additional  office  space and  equipment  rooms  will be  leased  as  additional
networks are constructed and the Company's operations are expanded.

    The Company  believes  that its  insurance  coverage on these  properties is
adequate and in compliance with the related leases.

Item 3.  Legal Proceedings

    On July 24,  1996,  the Company  was  notified  that a  complaint  against a
subsidiary had been filed in the District Court of El Paso County, Texas wherein
the  plaintiff  alleged  permanent  paraplegia  resulting  from his fall  into a
concealed basement during  construction of the Company's El Paso network. At the
time of

                                     Page 46


<PAGE>


the incident  giving rise to the lawsuit,  the  plaintiff was an employee of the
subcontractor  hired by the Company's general  contractor for this project.  The
plaintiff  seeks  recovery  from  the  Company's   subsidiary  and  the  general
contractor of at least $25 million in damages (plus punitive damages).  Both the
Company  and the general  contractor  have begun  investigations  into the facts
surrounding  the  incident and intend to defend  against  this suit  vigorously.
However,  based on the facts known as of the date  hereof,  the Company does not
believe it is likely,  although it is possible, that the Company could be liable
for  payment  of all or a portion  of the  requested  damages,  which  potential
liability  could  materially  adversely  affect  the  results of  operation  and
financial condition of the Company.

    Additionally,  the Company and its  subsidiaries  are  currently  parties to
routine litigation incidental to their business, none of which,  individually or
in the aggregate, are expected to have a material adverse effect on the Company.
The  Company  and  its  subsidiaries   continue  to  participate  in  regulatory
proceedings  before  the  FCC  and  state  regulatory  agencies  concerning  the
authorization of services and the adoption of new regulations.


Item 4.  Submission of Matters to a Vote of Security Holders

None.















                                     Page 47


<PAGE>



                                     Part II

Item 5.  Market for Common Equity and Related Stockholders Matters
         ---------------------------------------------------------

         The  Company's  Common Stock is traded  under the symbol  "ACNS" in the
over-the-counter  market.  The  Company's  Common  Stock has been  quoted on the
Nasdaq  National  Market since May 22, 1996. From March 3, 1995 to May 21, 1996,
the Company's  Common Stock was quoted on the Nasdaq SmallCap  Market.  Prior to
that time the Common  stock was quoted in the pink  sheets,  although it was not
consistently  quoted  therein.  On September 20, 1996,  the high and the low bid
prices for the Company's  Common Stock as reported by the Nasdaq National Market
were $11.13 and $10.75,  respectively.  As of  September  20,  1996,  there were
approximately 266 stockholders of record of the Company's Common Stock.

The following table sets forth the range of high and low bid quotations obtained
from the  National  Quotations  Bureau  for the  Common  Stock for the first two
quarters  of the  fiscal  year  ended  June 30,  1995 and a portion of the third
quarter of the fiscal year ended June 30, 1995 (the period from  January 1, 1995
through  March 2, 1995,  the day prior to the day the Common  Stock  began being
quoted on the Nasdaq SmallCap  Market).  The following table also sets forth the
high and low bid  quotations  as  reported by the Nasdaq  SmallCap  Market for a
portion of the third  quarter of the fiscal year ended June 30, 1995 (the period
from March 3, 1995 through March 31, 1995),  the last quarter of the fiscal year
ended June 30, 1995,  the first three quarters of the fiscal year ended June 30,
1996 and a portion of the fourth  quarter of the fiscal year ended June 30, 1996
(the period from April 1, 1996  through May 21,  1996,  the day prior to the day
the Common Stock began being quoted on the Nasdaq National Market). Finally, the
following  table also sets forth the high and low bid  quotations as reported by
the Nasdaq  National  Market  for a portion of the fourth  quarter of the fiscal
year ended June 30, 1996 (the period from May 22, 1996 through  June 30,  1996).
The quotes as set forth below are believed to be  representative of inter-dealer
quotations,  without  retail  mark-up,  mark-down  or  commission,  and  may not
necessarily represent actual transactions.


                                     Page 48


<PAGE>



                                                       High Bid          Low Bid

Fiscal Year  Ended June 30, 1995
- --------------------------------

First Quarter                                         $      4.50    $      1.50

Second Quarter                                        $      4.25    $      2.50

Third Quarter (through March 2, 1995)                 $      4.75    $      3.25

Third Quarter (March 3 through March 31, 1995)        $      4.75    $      3.25
 
Fourth Quarter                                        $      4.00    $      3.12

Fiscal Year  Ended June 30, 1996
- --------------------------------

First Quarter                                         $      8.25    $      3.75

Second Quarter                                        $      7.25    $      5.37

Third Quarter                                         $      9.75    $      5.00

Fourth Quarter (through May 21, 1996)                 $     16.00    $      8.00

Fourth Quarter (May 22 through June 30, 1996)         $     15.62    $     12.00
 
         The  Company  has paid no  dividends  on its  Common  Stock  since  its
inception  and  does  not  plan to pay  dividends  on its  Common  Stock  in the
foreseeable  future.  Except as may be utilized to pay dividends  payable on the
Series A-1 Preferred Stock and the Series B Preferred  Stock, any earnings which
the Company may realize  will be retained to finance the growth of the  Company.
The agreements  relating to the Company's  secured debt financing  prohibits the
Company from paying any  dividends on its capital  stock,  except the Series A-1
Preferred  Stock and the Series B Preferred  Stock,  and restrict the ability of
the

                                     Page 49

<PAGE>



Company's  subsidiaries  to transfer  funds to the Company,  unless in each case
certain  financial  covenants are met. The indentures  relating to the Company's
Senior Notes  prohibit the Company from paying any dividend on its capital stock
unless  certain  financial  covenants  are met.  The  Company's  certificate  of
incorporation  prohibits the payment of dividends on the Common Stock unless all
dividends  due and  payable  (including  accrued  dividends)  on the  Series A-1
Preferred Stock and the Series B Preferred Stock have been paid in full.


Item 6.  Management's Discussion and Analysis of Financial Condition
         -----------------------------------------------------------
and Results and Operations
- --------------------------

Overview

ACSI  provides or plans to provide a variety of  telecommunications  services to
IXCs and  business  and  government  end  users in Tier II and Tier III  markets
located   principally  in  the  southern   United  States.   The  Company  began
construction of its first fiber optic network in Louisville in February 1994 and
began to provide  commercial  service on that network in November 1994.  Between
August  1994  and  June 30,  1996,  the  Company  commenced  construction  of an
additional 23 networks,  17 of which (in addition to the Louisville network) are
currently operational. Since June 30, 1996 the Company has begun construction on
an additional six networks. The Company expects to provide commercial service in
the Amarillo, Baton Rouge, Central Maryland, Chattanooga,  Colorado Springs, and
Corpus Christi markets by the end of the fourth calendar  quarter of 1996 and in
the Dallas, Jacksonville, Kansas City, New Orleans, Shreveport and Tulsa markets
by March 31, 1997. The Company is actively  developing  necessary  marketing and
engineering  plans  and  pursuing  required  municipal  authorizations  to begin
construction  of additional  markets  during 1996 and plans to have,  subject to
receipt of additional necessary financing,  a total of 50 networks in service or
under  construction by June 30, 1998. The Company provides dedicated services to
IXCs and to those  business and  government end users whose volumes of voice and
data traffic are large  enough to warrant  paying a fixed  monthly  charge for a
specific capacity  requirement rather than a usage-based  variable charge. These
monthly  charges vary  according to the capacity of each circuit,  the volume of
individual  circuits ordered by the customer,  the mileage of the circuits,  the
need

                                     Page 50


<PAGE>


for any  ancillary  services  and  the  term of the  service  contract,  but are
typically less than the rates charged by the LECs for similar services,  volumes
and terms.  The Company focuses its sales efforts on the largest IXCs, with whom
it believes it has good customer relationships.  Sales of dedicated services are
typically coordinated with the end user's IXC account team and billed by the IXC
rather  than by the  Company,  thus  providing  the end user a  single  point of
contact  for its  entire  long  distance  account  and  reducing  the  Company's
back-office overhead requirements.  Currently, the Company offers these services
in all of its  operational  markets  and plans to offer  these  services  in all
markets where it constructs and operates networks.

The Company is  developing  and has begun  offering  high-speed  data  services,
including  Internet services and frame relay.  Internet services  facilitate the
connectivity  of  corporate,  institutional  and  governmental  customers to the
Internet,  a collection of data networks that communicate with one another using
common protocols.  Frame relay is a cost-effective  data transport  solution for
LAN-to-LAN connectivity,  legacy networks and client-server applications. ATM is
a high-bandwidth  service offering virtual  networking for voice, data and video
traffic, allowing a customer to use a single network for all three applications.
Customer charges include  nonrecurring charges for installation and provisioning
and either flat rate or  usage-based  recurring  charges based on network access
speed  and  the  statistically  guaranteed  throughput  rate  of  data  for  the
particular  service  order.  The Company is  deploying  a  broadband  inter-city
backbone data network using leased lines with ATM switches that will connect the
Company's  service markets,  major data markets and Internet access points.  The
same backbone  network  architecture  can be utilized by the Company's  enhanced
voice and local switched voice services for its  inter-market  connectivity  and
networking  requirements,  which the Company believes will result in operational
efficiencies  and lower costs while further  enhancing  opportunities  for cross
marketing and bundling services to ACSI's customers.

    ACSI is  implementing  its data  communications  network via high  bandwidth
(DS-3) longhaul  circuits leased from various  interexchange  carriers.  Network
connectivity  within  each  node  will  be  via  OC-3  bandwidth,  enabling  the
transparent   migration  of  longhaul  circuits  to  OC-3  capacity  as  needed.
Ultimately,  the platform  technology  is capable of  upgrading  the backbone to
OC-12,  without  further  modification.  The  Company's  initial  network  phase
established data POPs

                                     Page 51


<PAGE>


in seven markets plus a link to ACSI's  network  management  center in Maryland,
where the data  network is  monitored  on a  24-hour-a-day  basis.  The  Company
currently  has 25 POPs in  operation  and  plans  at least 40 POPs by the end of
calendar year 1996.

    The Company attained  national service provider status for Internet services
in May 1996.  Subsequently,  the Company entered into agreements to interconnect
at two major Network  Access Points  ("NAPs") where  national  Internet  service
providers  interconnect  their  networks,  allowing  the  multitude of local and
regional ISPs to exchange data and access the Internet globally,  seamlessly and
transparently.  In  addition to these two  initial  NAP  agreements  at MAE-East
(Vienna,  Virginia)  and  MAE-West  (San Jose,  California),  ACSI is  currently
negotiating for  interconnection at three additional NAPs as well as negotiating
peering agreements and  Network-to-Network  Interfaces  ("NNIs") with most major
interexchange  carriers.  The Company is  deploying a  coast-to-coast  DS-3/OC-3
backbone and deploying domain name systems for Internet routing.  As the Company
deploys additional data POPs (including POPs in all markets where ACSI has local
infrastructure),  it intends to  negotiate  additional  NNIs to  facilitate  the
exchange of data among other carriers' networks both domestically and abroad.

    In addition,  with a limited capital  investment,  the Company is developing
and  during  May  1996  began  offering  to small  and  mid-sized  business  and
government  end  users in its  first  five  markets,  enhanced  voice  messaging
services.  These customers will be billed by the Company.  The range of services
includes a voice messaging service for a flat monthly charge that may be bundled
with  one  or  more  additional  features  (such  as  automated   attendant/call
screening,  follow-me calling, remote fax and paging and e-mail notification) in
order  to  meet  the  customer's  specific  communications   requirements.   The
additional  features will be offered for incremental  fixed charges and/or usage
based charges.  Management believes that successful  marketing of these enhanced
voice messaging services will help build the Company's customer base and provide
relevant  sales  experience  that can be leveraged  into offering local switched
services.  The Company may also offer these enhanced voice messaging services on
a retail or  wholesale  basis in  markets  where it has no  network  facilities,
resulting in increased revenue potential.  However, the gross margins associated
with such revenues may be lower, resulting from the

                                     Page 52


<PAGE>


payment of LEC access charges in those non-ACSI  markets.  Additionally,  unlike
traditional telephone service, customers have not yet become fully accustomed to
use of voice  messaging  services,  and the demand for these services  cannot be
predicted at this time.

As requisite interconnection agreements and regulatory approvals are obtained on
a  state-by-state  basis,  the Company  plans to provide  local  switched  voice
services,  such as  local  dial  tone,  termination  of local  calling,  Centrex
services,  PBX trunking and switched  access  services.  These  services will be
offered  for  appropriate  fixed and  usage-based  charges at rates  below those
charged  by  LECs  for  similar  services.   Where   technically   feasible  and
economically  practicable,  the  Company  intends  to deploy a hubbed  switching
strategy by using Company-owned or leased switch capacity in a large,  centrally
located market to provide services within that market and to serve several other
smaller markets located within the same  geographical  area via remote switching
modules. The Company believes that this strategy,  if successfully  implemented,
could reduce the capital expense  associated with installing a fully  configured
switch in each  market,  which  market may  otherwise be too small on its own to
justify the  investment.  By  aggregating  switched  traffic from multiple small
markets  through a central  hub switch,  the Company  also can expect to realize
reduced operating  expenses  associated with switch engineering and maintenance.
The Company believes that providing dedicated and private line,  high-speed data
and enhanced  voice  messaging  services will enhance the  Company's  ability to
cross-market  local switched voice services to its then existing  customers at a
reduced  cost.  Finally,   the  Company  is  evaluating   opportunities,   on  a
market-by-market  basis, to establish mutually beneficial alliances with certain
entities that have local switching requirements,  experience,  facilities and/or
administrative  back-office  operations.  Successful  negotiation  of  switching
alliances  may  further  reduce the  Company's  capital and  operating  expenses
associated  with the provision of switched  voice  services as well as providing
additional market  opportunities by utilizing embedded  switching  technology in
those markets or deploying incremental switches more efficiently.

    The Company  believes that its local digital fiber optic  networks,  coupled
with its inter-city  broadband digital networks  described above, will provide a
platform  for  the  provision  of a  wide  variety  of  voice,  data  and  other
communications

                                     Page 53


<PAGE>


services  at a reduced  cost.  While the  Company  may  offer  its  services  to
customers that are not directly  connected to its network  through resale of the
LEC's network,  the Company believes that it can gradually migrate many of these
off-net  customers to higher margin on-net accounts as it increases  penetration
of all its services within a given building. As a result, the capital investment
of connecting additional buildings and customers to ACSI's network should become
more cost-effective.  Over time, the Company believes it can increase its market
share of all of its service offerings as a result of the reliability and quality
of  its  networks,   prompt  customer  service,   competitive   pricing,   cross
marketing/bundling  synergy's and new service  offerings over its target 50-city
market area.

Initially,  the Company expects to experience negative cash flow from operations
in each of its operating  networks.  The Company  estimates  that because of the
reduced  operating  costs  associated  with its smaller  markets and IXC-focused
sales force, it can achieve operating cash flow breakeven (i.e., positive EBITDA
before  overhead  allocations)  results on its networks  within ten to 15 months
from the start of commercial service.  Thereafter,  the Company anticipates that
its profit margins will increase as each network is expanded to directly connect
additional customers to its backbone, and as off-net customers migrate to on-net
status  (thus  allowing  the Company to retain the  portion of customer  charges
previously paid out to the LEC for resale of LEC  facilities).  The Company will
also  experience  initial  negative  cash flow  from  operations  as  additional
value-added services such as high-speed data, enhanced voice messaging and local
switched voice services are offered and until networks  providing those services
reach operating cash flow breakeven.

Capital Expenditures; Operating Cash Flow

    As of September  30, 1996 the Company is  operating  18 digital  fiber optic
networks,  with an additional  12 networks  under  construction,  and intends to
have,  subject  to  receipt  of  necessary  additional  financing,  50  networks
operating or under  construction by June 30, 1998. The costs associated with the
initial construction and operation of a network may vary greatly,  primarily due
to market  variations in geographic  and  demographic  characteristics,  and the
types of  construction  technologies  which can be used to deploy  the  network.
Management  estimates that  construction of the initial  one-to-three mile fiber
optic backbone and

                                     Page 54


<PAGE>


installation of related network  transmission  equipment for dedicated  services
for each market will  generally  cost  between  $3.5  million and $6.0  million,
depending on the size of the market served.  Including planned expansion routes,
total capital expenditures per network are estimated to average $6.0 million. In
addition  to capital  expenditure  requirements,  the Company  incurs  sales and
marketing  (including  sales  commissions)  and  operating  expenses  and  other
expenses such as property taxes and, in certain  markets,  franchise fees. Prior
to the completion of network  construction,  certain of these  expenses,  to the
extent they are related to  pre-service  construction,  are  capitalized.  These
capitalized  expenses,  estimated  by  management  to be  between  approximately
$500,000 and $1.0 million per network,  are amortized over the anticipated  life
of the network. These costs vary depending on the size of the market, the length
of time required to build-out the network and the rate of growth of the customer
base.

    At  such  time  as the  Company  develops,  introduces  and  rolls  out  its
high-speed  data,  enhanced voice  messaging and local switched  services in its
target markets,  additional capital expenditures and net operating costs will be
incurred.  The amount of these costs will vary based on the number of  customers
served and the actual services provided to the customers.

    Although the Company is now  generating  revenues from 18 of its fiber optic
networks, on a consolidated basis it is still incurring negative cash flows due,
in part,  to the  funding  requirements  for the  networks  the  Company  is now
planning or has under  construction  or  development  and due,  in part,  to the
roll-out of its new data and voice services.  The Company expects to continue to
incur negative cash flow for at least the next several years.

Results of Operations

 Fiscal Year Ended June 30, 1996 Compared to Fiscal Year Ended June 30, 1995

  Revenues

    During the fiscal year ended June 30, 1996, the Company recorded revenues of
$3,415,137 as compared to revenues of $388,887 during the fiscal year ended June
30, 1995. Four of the largest IXCs accounted for approximately $1,708,000, or

                                     Page 55


<PAGE>


60%,  of  revenues  for fiscal 1996 as compared to fiscal 1995 when three of the
largest IXCs accounts for approximately  $329,000, or 85% of revenues for fiscal
1995 reflecting the Company's increased sales to end users.

Total Operating Expenses

    Network  development  and  operations  expenses for fiscal 1996 increased to
$5,264,570 from $3,282,200 in fiscal 1995,  reflecting  significant increases in
personnel,   network  development  and  non-payroll  operating  expenses.  These
increased costs were associated  with  developing and  establishing  centralized
engineering, circuit provisioning and network management functions, constructing
and initially operating the Company's competitive access networks and performing
market  feasibility,  engineering,  rights-of-way and regulatory  evaluations in
additional  target cities,  as well as the start up of two new business units to
provide  advanced data service and switched voice  services.  Related  personnel
costs  increased to $4,464,358 in fiscal 1996 from  approximately  $1,341,100 in
fiscal 1995. Other operating  expenses related to the development of prospective
new markets,  which include  expenses such as contract  labor and legal expenses
and certain franchise fees, travel expenses, rent, utilities, charges and taxes,
decreased  to $800,212 in fiscal 1996 from  approximately  $1,941,100  in fiscal
1995.

In fiscal  1996,  selling,  general and  administrative  expenses  increased  to
$13,463,775 from $4,597,600 in fiscal 1995. Related personnel costs increased to
$3,232,811  in fiscal 1996 from  $1,974,200  in fiscal 1995,  and  corresponding
operating  costs  increased to  $10,230,964  in fiscal 1996 from  $2,210,900  in
fiscal 1995. This increase reflected costs associated with the Company's efforts
in  significantly  expanding  its national and local city sales,  marketing  and
administrative  staffs, as well as increased legal and other consulting expenses
associated with its aggressive programs for obtaining  regulatory  approvals and
certifications and providing quality network services.

    Depreciation  and  amortization  expenses  increased to $3,078,426 in fiscal
1996 from $497,811 in fiscal 1995.  During fiscal 1996 the Company increased its
capital  assets to  approximately  $80,147,964  representing  an  increase  from
$15,900,000  at the end of fiscal  1995.  Non-cash  stock  compensation  expense
decreased to $2,735,845 for fiscal 1996 from  $6,419,412  for fiscal 1995.  This
expense  reflects  the  Company's  accrual of  non-cash  costs for  options  and
warrants

                                     Page 56


<PAGE>


granted to key  executives,  employees  and others  arising from the  difference
between  the  exercise  price and the  valuation  prices  used by the Company to
record such costs and from the vesting of those options and warrants. Certain of
these  options had put rights and other  factors  that  required  variable  plan
accounting  in fiscal 1994 and fiscal 1995 but, at the end of fiscal  1995,  the
Company  renegotiated  contracts  with certain of its officers,  establishing  a
limit of $2,500,000 on the Company's put right obligations with respect to those
contracts. During fiscal 1996, the limit was further reduced to 2,000,000.

Interest and Other Expenses

Interest and other income  increased to $4,409,734 for fiscal 1996 from $217,525
in fiscal 1995.  Interest  expense and other costs  increased to  $10,476,904 in
fiscal  1996 from  $706,100 in fiscal  1995.  The  increase  in interest  income
reflects the significant  increase in available funds from the Company's sale of
its 9% Series B Preferred  Stock in June and November  1995,  the  Company's 13%
Senior  Discount  Notes Due 2005 (the  "2005  Notes") in  November  1995 and the
Company's  12 3/4% Senior  Discount  Notes Due 2006 (the "2006  Notes") in March
1996.  The  increase in interest  and other  expenses  reflected  the accrual of
interest  related to the 2005 Notes and 2006 Notes and the  Company's  increased
borrowings  under its secured  financing  facility with AT&T Credit  Corporation
(the "AT&T Credit  Facility").  Payments of  principal  and interest on the AT&T
Credit  Facility will begin in calendar  1997,  payments of interest on the 2005
Notes do not begin  until  November  2000 and  payments  of interest on the 2006
Notes do not begin until October 2001.

    Debt conversion expense in fiscal 1995 totaled $385,000, reflecting expenses
incurred in connection  with the  conversion of certain of the Company's debt to
equity in September 1994.  AT&T Credit  Corporation's  minority  interest in the
Company's  operating  subsidiaries  for  which  it  provided  funding,   reduced
operating losses by  approximately  $412,606 for fiscal 1996, and by $48,655 for
fiscal 1995.





                                     Page 57


<PAGE>



Liquidity and Capital Resources

To date,  the  Company  has  funded the  construction  of its  networks  and its
operations with external financing.  Prior to November 1995, the primary sources
of funds used to finance the building of existing networks and the completion of
new targeted networks were two private offerings of preferred stock completed in
October 1994 and June 1995, through which the Company raised approximately $39.6
million,  and the AT&T Credit Facility,  through which the Company has financing
commitments  for $31.2 million.  On November 14, 1995,  the Company  completed a
private  offering of 190,000  Units  consisting  of $190.0  million in principal
amount of the 2005 Notes and the  Warrants to purchase an aggregate of shares of
common stock at a price of $7.15 per share (as may be  adjusted)  from which the
Company  received  approximately  $96.8 million in net proceeds.  The 2005 Notes
will accrete to an aggregate  principal  amount of $190.0 million by November 1,
2000,  after which cash  interest  will  accrue and be payable on a  semi-annual
basis. In November 1995 the Company also received net proceeds of  approximately
$5.0  million  from the  private  sale of an  additional  50,000  shares  of its
Preferred Stock to a principal  stockholder and the exercise by that stockholder
of warrants to purchase 214,286 shares of Common Stock acquired in the Company's
June 1995 private placement.  On March 21, 1996, the Company completed a private
offering of $120.0 million in principal amount of the 2006 Notes. The 2006 Notes
will  accrete to an  aggregate  principal  amount of $120.0  million by April 1,
2001,  after which cash  interest  will  accrue and be payable on a  semi-annual
basis. The Company received net proceeds of approximately $61.8 million from the
sale of the 2006 Notes.

    The Company intends to continue to use these funds towards completion of the
Company's  50-city business plan,  including the development and construction of
fiber optic networks,  the further development and introduction of new services,
including high-speed data, enhanced voice messaging and local switched services,
for expansion of the Company's  existing networks and to fund negative operating
cash flow until cash flow break even.  The Company has estimated  that from July
1, 1996  through the end of the calendar  year 1998,  capital  requirements  for
implementation of its 50-city business plan are approximately $410.9 million. At
June 30, 1996, the Company had approximately $132.7 million in cash and cash

                                     Page 58


<PAGE>


equivalents available for this purpose. To meet additional capital requirements,
ACSI may be required to sell  additional  debt or equity  securities or increase
its existing credit facility.  The Company may also need to seek such additional
equity  financing to maintain  balance sheet and liquidity ratios required under
certain  of its debt  instruments.  In  addition,  the  Company  in the past has
considered and expects to continue to consider  potential  acquisitions or other
strategic  arrangements that may fit the Company's  strategic plan. Although the
Company  has  had  discussions   concerning   such  potential   acquisitions  or
arrangements,  to date no  agreements  have  been  reached  with  regard  to any
particular transaction. Any such acquisitions or strategic arrangements that the
Company  might  consider  are  likely  to  require  additional  equity  or  debt
financing, which the Company will seek to obtain as required.

Preferred Stock. In October 1994, the Company completed the private placement of
186,664 shares of its 9% Series A Convertible  Preferred  Stock, par value $1.00
per share  (which was later  exchanged  for Series A-1  Preferred  Stock that is
convertible into 7,466,560 shares of Common Stock) with accompanying warrants to
purchase an  aggregate  of 2,674,506  shares of Common  Stock,  for an aggregate
consideration  of  $16.8  million  (before   deduction  of  estimated   offering
expenses),  including the conversion of $4.3 million of outstanding debt. Of the
warrants sold in October 1994,  warrants to acquire  1,491,222  shares of Common
Stock were exercised by a principal  stockholder for an aggregate exercise price
of approximately $100,000.

    In June 1995, the Company completed a private placement of 227,500 shares of
its Series B Preferred Stock with accompanying warrants to purchase an aggregate
of  1,584,303  shares  of  Common  Stock,  for  an  aggregate  consideration  of
$22,750,000.  In addition,  in November  1995,  the Company  completed a private
placement of 50,000  shares of its Series B Preferred  Stock  together  with the
exercise of accompanying  warrants to purchase 214,286 shares of Common Stock to
a principal stockholder for an aggregate consideration of $5,000,000. The Series
B Preferred Stock is convertible into an aggregate of 9,910,718 shares of Common
Stock.


                                     Page 59


<PAGE>



    Under the terms of the  Preferred  Stock,  the Company is required to accrue
quarterly  dividends at an annual rate of 9% of the face value of the  Preferred
Stock outstanding. Such accrued dividends will be payable cumulatively beginning
January  1,  1998,  subject to certain  covenants  contained  in the  indentures
relating to the 2005 Notes and the 2006 Notes,  or earlier upon  conversion into
Common Stock.

AT&T Credit Facility.  In October 1994, the Company entered into the AT&T Credit
Facility  pursuant to which AT&T Credit  Corporation has agreed to provide up to
$31.2 million in financing for the development  and  construction of fiber optic
networks by the Company's subsidiaries.  In connection with each loan made under
the AT&T Credit Facility, AT&T Credit Corporation purchases 7.25% of the capital
stock of the funded subsidiary, and ACSI pledges the other shares and the assets
of the subsidiary to AT&T Credit  Corporation  as security for the loan.  During
fiscal 1995, the Company's  subsidiaries in Louisville,  Fort Worth,  Greenville
and  Columbia  entered  into  loan  agreements  under the AT&T  Credit  Facility
providing  for AT&T  Credit  Corporation  funding of up to $19.8  million in the
aggregate,  and in September  1995, the Company's  subsidiary in El Paso entered
into a loan agreement  under the AT&T Credit  Facility  providing for up to $5.5
million of AT&T Credit Corporation funding. As of June 30, 1996, an aggregate of
$15.0 million had been borrowed under these agreements.


Effects of New Accounting Standards

    In March 1995, the Financial  Accounting  Standards Board (FASB) issued SFAS
No. 121,  Accounting for the Impairment of Long-lived  Assets and for Long-lived
Assets to Be  Disposed  Of,  which will  require  the  Company to review for the
impairment of long-lived assets and certain identifiable  intangibles to be held
and used by the Company  whenever  events or changes in  circumstances  indicate
that the carrying amount of any asset may not be  recoverable.  Adoption of SFAS
No. 121 is required in fiscal 1997.

     In October 1995, the FASB issued SFAS No. 123,  Accounting for  Stock-Based
Compensation, which establishes a fair value-based method for financial

                                     Page 60


<PAGE>


accounting and reporting  stock-based employee  compensation plans. However, the
new  standard  allows  compensation  to  continue  to be  measured  by using the
intrinsic  value based method  accounting  prescribed by  Accounting  Principles
Board Opinion No. 25,  Accounting  for Stock Issued to  Employees,  but requires
expanded disclosures. SFAS No. 123 is effective in fiscal year 1997. The Company
has elected to continue to apply the intrinsic  value-based method of accounting
for stock options.

While the Company does not know  precisely  the impact of adopting  SFAS No. 121
and SFAS No. 123,  the Company does not expect that the adoption of SFAS No. 121
and SFAS No.  123 will  have a  material  effect on the  Company's  consolidated
financial statements.


Item 7.  Financial Statements

The  response  to this Item is  submitted  as a separate  section of this report
commencing on Page F-1.


Item 8. Changes In and Disagreements With Accountants on
        ------------------------------------------------
        Accounting and Financial Disclosure
        -----------------------------------

Not Applicable.













                                     Page 61

<PAGE>


                                    Part III

         The  information  required by Item 9 - Directors,  Executive  Officers,
Promotors  and Control  Persons;  Compliance  with Section 16(a) of the Exchange
Act; Item 10 - Executive  Compensation;  Item 11 - Security Ownership of Certain
Beneficial  Owners  and  Management;  and Item 12 -  Certain  relationships  and
Related Transactions is incorporated into Part III of this Annual Report on Form
10-KSB by reference to the Company's  Proxy  Statement for the Annual Meeting of
Stockholders scheduled to be held on November 15, 1996.


































                                     Page 62

<PAGE>

ITEM 13.  EXHIBITS AND REPORTS ON FORM 8-K.

a) EXHIBITS (Numbered in accordance with Item 601 of Regulation S-B)
<TABLE>
<CAPTION>


                                                                                     EXHIBIT NO. O
EXHIBIT                                                                              INCORPORATION
  NO.                     DESCRIPTION                                                BY REFERENCE
=======                   ===========                                                =============
<C>     <S>                                                                          <C>

 3.1    Amended and Restated Certificate of Incorporation of the Company.                      #
 3.2    Certificate of Designations of the Company's 9% Series A-l, Series
        B-1, Series B-2, Series B-3 and Series B-4 Convertible Preferred Stock.               **
 3.3    Certificate of Elimination regarding the 9% Series A Preferred Stock                  **
 3.4    Amended and Restated By-Laws of the Company, as amended.                               *
 3.5    Governance Agreement dated November 8, 1995, between the Company and
        the holders of its Preferred Stock.                                                   ++
 3.8    Certificate of Correction dated March 11, 1996.                                        #
 3.9    Supplemental Governance Agreement dated February 26, 1996.                             #
 4.1    Specimen Certificate of the Company's Common Stock.                                    #
 4.2    Specimen Certificate of the Company's 9% Series A-l Preferred Stock.                ****
 4.3    Specimen Certificate of the Company's 9% Series B-1 Preferred Stock.                ****
 4.4    Specimen Certificate of the Company's 9% Series B-2 Preferred Stock.                ****
 4.5    Specimen Certificate of the Company's 9% Series B-3 Preferred Stock.                ****
 4.6    Certificate of the Company's 9% Series B-4 Preferred Stock dated
        November 14, 1995.                                                                    ++
 4.7    Indenture dated November 14, 1995, between the Company and Chemical
        Bank, as trustee, relating to $190,000,000 in principal amount of
        13% Senior Discount Notes due 2005, including the form of global note.                ++
 4.8    Initial Global Note dated November 14, 1995.                                          ++
 4.9    Warrant Agreement dated November 14, 1995, between the Company and
        Smith Barney Inc. and Salomon Brothers Inc.                                          +++
 4.10   Initial Global Warrant dated November 14, 1995.                                      +++
 4.11   Indenture dated March 21, 1996, between the Company and Chemical Bank,
        as trustee, relating to $120,000,000 in principal amount of 12 3/4%
        Senior Discount Notes due 2006, including the form of global note.                 +++++
 9.1    Standstill Agreement dated June 26, 1995, between the Company and
        certain of its Preferred Stockholders.                                              ****
 9.2    Standstill Agreement dated November 8, 1995, between the Company and
        certain of its Preferred Stockholders.                                                ++
 9.3    Voting Rights Agreement dated November 8, 1995, between the Company and
        certain of its Preferred Stockholders.                                                ++
 9.4    Amendment to Voting Rights Agreement dated December 14, 1995.                          #
10.1    Exchange Agreement, dated June 1, 1994, between the Company and certain of
        its Preferred Shareholders.                                                            *
10.2    Exchange Agreement, dated June 26, 1995, between the Company and its 9%
        Series A Preferred Shareholders.                                                      **
10.3    Company's 1994 Stock Option Plan.                                                      *
10.4    Registration Rights Agreement dated July 1, 1992, between American
        Lightwave, Inc. and persons named therein.                                             *
10.5    Supplemental Registration Rights Agreement dated June 26, 1995.                     ****
10.6    Management Registration Rights Agreement dated June 30, 1995.                       ****
10.7    Registration Rights Agreement dated June 26, 1995, between the Company
        and certain Preferred Stockholders.                                                   **
10.8    Form of Warrant Agreement issued to certain Preferred Stockholders on
        June 26, 1995.                                                                      ****
10.9    Form of $.01 Warrant Agreement.                                                     ****
10.10   Form of $1.79 Warrant Agreement.                                                    ****
10.11   Form of $2.25 Warrant Agreement.                                                    ****
10.12   Stockholders Agreement dated June 26, 1995, between the Company and
        certain Preferred Stockholders.                                                     ****
10.13   Third Amended and Restated Employment Agreement between the Company
        and Anthony J. Pompliano.                                                           ****


<PAGE>

10.14   Third Amended and Restated Employment Agreement between the Company
        and Richard A. Kozak.                                                               ****
10.15   Third Amended and Restated Employment Agreement between the Company
        and George M. Tronsrue, III.                                                        ****
10.16   Third Amended and Restated Employment Agreement between the Company
        and Riley M. Murphy.                                                                ****
10.17   Third Amended and Restated Employment Agreement between the Company
        and Douglas R. Hudson.                                                              ****
10.18   Second Amended and Restated Employment Agreement between the Company
        and Ronald W. Kaiser.                                                               ****
10.19   Employment Agreement between the Company and Robert Ottman                          ****
10.20   Form of Non-Qualified Stock Option Certificates, as amended, issued to
        Richard A. Kozak.                                                                   ****
10.21   Form of Stock Option Certificates, as amended, issued to George M.
        Tronsrue, III under employment agreement.                                           ****
10.22   Form of Stock Option Certificates, as amended, issued to Riley M.
        Murphy under employment agreement.                                                  ****
10.23   Form of Stock Option Certificates, as amended, issued to Douglas R.
        Hudson under employment agreement.                                                  ****
10.24   Form of Stock Option Certificates, as amended, issued to Ronald W.
        Kaiser under employment agreement.                                                  ****
10.25   Form of Stock Option Certificates, as amended, issued to Robert Ottman.             ****
10.26   Agreement, dated March 2, 1994, between the Company and Gerard Klauer
        Mattison & Co., as amended.                                                            *
10.27   Agreement, dated March 20, 1995, between the Company and Gerard Klauer
        Mattison & Co., as amended.                                                         ****
10.28   Agreement, dated October 19, 1994, between the Company and Marvin
        Saffian & Company.                                                                     *
10.29   Lease Agreement for the Company's executive offices at 131 National
        Business Parkway, Suite 100, Annapolis Junction, Maryland, as amended.              ****
10.30   Loan and Security Agreement, dated October 17, 1994, between AT&T Credit
        Corporation and American Communication Services of Louisville, Inc.                    *
10.31   Loan and Security Agreement, dated February 28, 1995, between AT&T Credit
        Corporation and American Communication Services of Fort Worth, Inc.                 ****
10.32   Loan and Security Agreement, dated June 30, 1995, between AT&T Credit
        Corporation and American Communication Services of Greenville, Inc. and
        American Communication Services of Columbia, Inc.                                   ****
10.33   Amendment No. 1 to Parent Support and Pledge Agreement (Louisville)
        between the Company and AT&T Credit Corporation.                                    ****
10.34   Amendment No. 1 to Parent Support and Pledge Agreement (Fort Worth)
        between the Company and AT&T Credit Corporation.                                    ****
10.35   Amendment No. 1 to Loan and Security Agreement between American
        Communications Services of Louisville, Inc. and AT&T Credit Corporation.            ****
10.36   Consulting Agreement, dated October 25, 1993, between the Company and
        Thurston Partners, Inc.                                                                *
10.37   Consulting Agreement, effective July 1, 1994, between the Company and SGC
        Advisory Services, Inc.                                                                *
10.38   Consulting Agreement, dated June 16, 1994, between the Company and Thurston
        Partners. Inc. and Global Capital, Inc.                                                *
10.39   Note Purchase Agreement, dated June 28, 1994.                                          *
10.40   Investment Agreement dated October 21, 1994, between the Company and the
        Purchasers named therein.                                                              *
10.41   Stock Purchase Agreement, dated October 17, 1994, between the Company and
        AT&T Credit Corporation.                                                               *
10.41   American Communication Services of Louisville, Inc. Common Stock Purchase
        Agreement, dated October 17, 1994.                                                     *
10.42   Stock Purchase Agreement, dated November 28, 1994, by and among the
        Company, CitiLink Corp., and the former directors and shareholders of
        CitiLink Corp., as amended August 3, 1995.                                          ****
10.43   Stock Purchase Agreement, dated May 12, 1995, by and among the Company,
        Piedmont Teleport, Inc., Randal Holcombe and Karen Holcombe, as amended.            ****
10.44   Stock and Warrant Purchase Agreement, dated June 26, 1995, between the
        Company and the Purchasers named therein.                                             **
10.45   Form of Indemnity Agreement between the Company and its Director, as


                                      - 2 -
<PAGE>

        amended.                                                                            ****
10.46   Assignment and Assumption Agreement dated June 21, 1995, between the
        Company and Apex Investment Fund II, L.P.                                           ****
10.47   Registration Agreement dated November 9, 1995, between the Company and
        the Initial Purchasers.                                                               ++
10.48   Loan and Security Agreement, dated September 8, 1995, between AT&T Credit
        Corporation and American Communications Services of E1 Paso, Inc.                     ++
10.49   Parent Support and Pledge Agreement (E1 Paso) dated September 8, 1995,
        between the Company and AT&T Credit Corporation.                                      ++
10.50   Letter Agreement dated November 14, 1995, between the Company and ING
        Equity Partners, L.P.I, with respect to the purchase of 50,000 shares of
        the Company's 9% Series B-4 Convertible Preferred Stock and warrants to
        purchase 214,286 shares of Common Stock.                                              ++
10.51   Warrant to Purchase Shares of American Communications Services, Inc.
        Common Stock dated December 28, 1995, between the Company and Gerard
        Klauer, Mattison & Co. ("GKM Warrant I").                                             ++
10.52   Warrant to Subscribe For and Purchase Common Stock of American
        Communications Services, Inc. dated December 28, 1995, between the
        Company and Gerard Klauer, Mattison & Co. ("GKM Warrant II").                         ++
10.53   Amended 1994 Stock Option Plan of the Company.                                        ++
10.54   Parent Pledge and Support Agreement dated as of October 17, 1994 between
        the Company and AT&T Credit Corporation.                                               *
10.55   American Communication Services of E1 Paso Inc. Common Stock Purchase
        Agreement dated September 8, 1995.                                                     #
10.56   Form of Non-Qualified Stock Option Certificates, as amended, issued to               E-1
        Anthony J. Pompliano.
10.57   Employment Agreement between the Company and Harry J. D'Andrea.                      E-2
10.58   Master Amendment to Loan and Security Agreements dated November 30, 1995,            E-3
        among American Communication Services of Louisville, Inc., American
        Communication Services of Fort Worth, Inc., American Communication
        Services of Columbia, Inc., American Communication Services of
        Greenville, Inc., American Communication Services of El Paso and AT&T
        Credit Corporation.
10.59   Master Reaffirmation of Parent Pledge and Support Agreements dated                   E-4
        November 30, 1995, between the Company and AT&T Credit Corporation.
10.60   Letter of Amendment to Loan and Security Agreements dated December 19, 1995,         E-5
        among American Communication Services of Fort Worth, Inc., American
        Communication Services of Columbia, Inc., American Communication Services
        of Greenville, Inc., American Communication Services of El Paso and AT&T
        Credit Corporation.
10.61   Second Master Amendment to Loan and Security Agreements, Waiver and                  E-6
        Equipment Notes Modification Agreement dated September 6, 1996 among
        American Communication Services of Louisville, Inc., American
        Communication Services of Fort Worth, Inc., American Communication
        Services of Columbia, Inc., American Communication Services of
        Greenville, Inc., American Communication Services of El Paso and AT&T
        Credit Corporation.
10.62   Second Master Reaffirmation of Parent Pledge and Support Agreements dated            E-7
        September 6, 1996 between the Company and AT&T Credit Corporation.
10.63   Master Equipment Lease Agreement dated August 26, 1996, between the Company          E-8
        and AT&T Credit Corporation.
11.1    Statement re: computation of per share earnings (loss).                              E-9
16.1    Letter re: change in certifying accountant.                                          ***
21.1    Subsidiaries of the Registrant.                                                     E-10
23.1    Consent of KPMG Peat Marwick LLP.                                                   E-11
27.1    Financial Data Schedules.                                                           E-12
99.1    Certain Factors to Consider in Connection with Forward Looking Statements.          E-13

</TABLE>

- ------------------

*    Previously filed as an exhibit to the Company's  Registration  Statement on
     Form SB-2 (File No. 33-87200) and incorporated herein by reference thereto.

**   Previously filed as an exhibit to the Company's  Current Report on Form 8-K
     dated


                                      - 3 -
<PAGE>

        June 26, 1995, and incorporated herein by reference thereto.

***  Previously  filed as an exhibit to the Company's  Quarterly  Report on Form
     10-QSB for the fiscal quarter ended March 31, 1995, and incorporated herein
     by reference thereto.

**** Previously  filed as an  exhibit  to the  Company's  Annual  Report on Form
     10-KSB for the fiscal year ended June 30, 1995, and incorporated  herein by
     reference thereto.

+    Previously  filed as an exhibit  to the  Company's  Annual  Report on Forrn
     10-QSB for the fiscal year ended June 30, 1995, and the Company's Quarterly
     Report on Form 10-QSB for the fiscal quarter ended September 30, 1995, both
     of which are incorporated herein by reference thereto.

++   Previously filed as an exhibit to the Company's  Registration  Statement on
     Form S-4 (File No. 33-80305) and incorporated herein by reference thereto.

+++  Previously filed as an exhibit to the Company's  Registration  Statement on
     Form SB-2 (File No. 33-80673) and incorporated herein by reference thereto.

+++++Previously filed as an exhibit to the Company's  Current Report on Form 8-K
     dated March 26, 1996 and incorporated herein by reference thereto.

     # Previously filed as an exhibit to the Company's Registration Statement on
     Form S-4 (File No. 333-3632) and incorporated herein by reference thereto.

b) Reports on Form 8-K

     On April 11,  1996,  the Company  filed with the  Securities  and  Exchange
Commission (the  "Commission") a Current Report on Form 8-K dated March 26, 1996
relating to the completion of the Company's private placement of $120,000,000 of
the  Company's  12-3/4%  Senior  Discount  Notes due 2006 under Rule 144A of the
Securities Act of 1933, as amended. (Item 5).

     On July 12, 1996, the Company filed with the Commission a Current Report on
Form 8-K dated  June 17,  1996  relating  to the  filing  on June 17,  1996 of a
Registration  Statement  on Form SB-2 with the  Commission,  and relating to the
filing on July 2, 1996 of Amendment No. 1 to the Form SB-2 with the  Commission,
relating to the registration of the Company's Common Stock. (Item 5 and Item 7).

                                      - 4 -

<PAGE>


                                   SIGNATURES

         Pursuant to the  requirements  of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the registrant has duly caused this report to be signed on
its behalf by the undersigned, thereunto duly authorized.

Dated: September 30, 1996.


                                          AMERICAN COMMUNICATIONS SERVICES, INC.


                                               /s/  Richard A. Kozak
                                           By: Richard A. Kozak, President and
                                               Chief Executive Officer

         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
this  report has been  signed  below by the  following  persons on behalf of the
registrant and in the capacities and on the dates indicated.
<TABLE>
<CAPTION>

               Signature                                 Title                                  Date
               ---------                                 -----                                  ----

       <S>                                 <C>                                           <C> 
       /s/ ANTHONY J. POMPLIANO            Chairman of the Board of Directors            September 30, 1996
          Anthony J. Pompliano

          /s/ RICHARD A. KOZAK               President and Chief Executive               September 30, 1996
            Richard A. Kozak                            Officer
                                              (Principal Executive Officer)

         /s/ HARRY J. D'ANDREA                  Chief Financial Officer                  September 30, 1996
           Harry J. D'Andrea              (Principal Financial and Accounting
                                                        Officer)

           /s/ EDWIN M. BANKS                           Director                         September 30, 1996
             Edwin M. Banks


           /s/ PETER C. BENTZ                           Director                         September 30, 1996
             Peter C. Bentz

         /s/ BENJAMIN P. GIESS                          Director                         September 30, 1996
           Benjamin P. Giess

        /s/ GEORGE M. MIDDLEMAS                         Director                         September 30, 1996
          George M. Middlemas

      /s/ CHRISTOPHER L. RAFFERTY                       Director                         September 30, 1996
        Christopher L. Rafferty

        /s/ OLIVIER L. TROUVEROY                        Director                         September 30, 1996
          Olivier L. Trouveroy

</TABLE>
<PAGE>

                                       F-1


                     AMERICAN COMMUNICATIONS SERVICES, INC.

                       Consolidated Financial Statements

                             June 30, 1996 and 1995



                         INDEX TO FINANCIAL STATEMENTS


================================================================================

<TABLE>
<CAPTION>

                                                                                                              Page


<S>                                                                                                           <C>
Independent Auditors' Report..................................................................................F-2

Consolidated Balance Sheets as of June 30, 1996 and 1995......................................................F-3

Consolidated Statements of Operations for the Years Ended June 30, 1996 and 1995..............................F-4

Consolidated Statements of Stockholders' Equity (Deficit) for the Years Ended
     June 30, 1996 and 1995...................................................................................F-5

Consolidated Statements of Cash Flows for the Years Ended June 30, 1996 and 1995..............................F-6

Notes to Consolidated Financial Statements....................................................................F-7

</TABLE>

<PAGE>




                                       F-2






Independent Auditors' Report



The Board of Directors and Stockholders
American Communications Services, Inc.:


We have  audited  the  accompanying  consolidated  balance  sheets  of  American
Communications Services, Inc. and subsidiaries as of June 30, 1996 and 1995, and
the  related  consolidated   statements  of  operations,   stockholders'  equity
(deficit), and cash flows for the years then ended. These consolidated financial
statements   are  the   responsibility   of  the   Company's   management.   Our
responsibility  is  to  express  an  opinion  on  these  consolidated  financial
statements based on our audits.

We  conducted  our  audits  in  accordance  with  generally   accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the consolidated  financial statements referred to above present
fairly,  in  all  material   respects,   the  financial   position  of  American
Communications Services, Inc. and subsidiaries as of June 30, 1996 and 1995, and
the results of their  operations  and their cash flows for the years then ended,
in conformity with generally accepted accounting principles.



                                                   /s/ KPMG PEAT MARWICK LLP
                                                   KPMG Peat Marwick LLP


Washington, DC
September 27, 1996

<PAGE>
AMERICAN COMMUNICATIONS SERVICES, INC.

Consolidated Balance Sheets

June 30, 1996 and 1995

================================================================================
<TABLE>
<CAPTION>

Assets                                                                                           1996             1995
- -----------------------------------------------------------------------------------------------------------------------

<S>                                                                                  <C>                    <C>
Current assets:
     Cash and cash equivalents (note 1)                                               $   132,706,427       20,350,791
     Restricted cash (note 1)                                                               3,751,706          752,000
     Trade accounts receivable, net of allowance for doubtful accounts of $189,510
     and
         $8,570 at June 30, 1996 and 1995, respectively                                       735,260          350,436
     Other current assets                                                                   1,003,465           92,325
- -----------------------------------------------------------------------------------------------------------------------

Total current assets                                                                      138,196,858       21,545,552

Networks, equipment and furniture, gross (note 2)                                          80,147,964       15,897,562
     less:  Accumulated depreciation                                                      (3,408,698)        (330,272)
- -----------------------------------------------------------------------------------------------------------------------

                                                                                           76,739,266       15,567,290

Deferred financing fees, net of accumulated amortization of $732,775 and $64,458
     at June 30, 1996 and 1995, respectively                                                8,334,183          292,113
Other assets                                                                                  329,584          222,010
- -----------------------------------------------------------------------------------------------------------------------
Total assets                                                                          $   223,599,891       37,626,965
=======================================================================================================================

Liabilities, Redeemable Stock, Options and Warrants, Minority Interest
     and Stockholders' Equity
- -----------------------------------------------------------------------------------------------------------------------

Current liabilities:
     Accounts payable                                                                 $    21,317,346      3,843,167
     Accrued financing fees                                                                         -        1,542,255
     Accrued employee costs                                                                   774,262          836,509
     Other accrued liabilities                                                                886,692        1,269,484
     Notes payable - current portion (note 4)                                                 252,809          146,083
- -----------------------------------------------------------------------------------------------------------------------
Total current liabilities                                                                  23,231,109        7,637,498

Long term liabilities:
     Notes payable (note 4)                                                               184,129,361        3,652,085
     Dividends payable (note 3)                                                             4,942,313        1,070,985
- -----------------------------------------------------------------------------------------------------------------------
Total liabilities                                                                         212,302,783       12,360,568
- -----------------------------------------------------------------------------------------------------------------------

Redeemable stock, options and warrants (notes 6 and 11)                                     2,155,025        2,930,778
- -----------------------------------------------------------------------------------------------------------------------

Minority interest (note 4)                                                                    160,270          194,402
- -----------------------------------------------------------------------------------------------------------------------

Stockholders' equity (notes 4, 5 and 6):
     Preferred stock, $1.00 par value, 186,664 shares designated as 9% Series A-1 Convertible
         Preferred Stock authorized, issued and outstanding at June 30, 1996 and
         1995,
         respectively, convertible into 7,466,560 shares of common stock (notes 3 and 4)      186,664          186,664
     Preferred stock, $1.00 par value, 277,500 shares authorized and designated as 9%
         Series B Convertible Preferred Stock; 277,500 and 227,500 shares issued and
         outstanding at June 30, 1996 and 1995, respectively, convertible into 9,910,718
         shares of common stock (notes 3 and 5)                                               277,500          227,500
     Common stock, $.01 par value, 30,000,000 shares authorized, 6,645,691 and 5,744,782
         shares issued and outstanding at June 30, 1996 and 1995, respectively, (note 5)       65,837           56,827
     Additional paid-in capital                                                            55,975,078       42,411,448
     Accumulated deficit                                                                 (47,523,266)     (20,741,222)
- -----------------------------------------------------------------------------------------------------------------------
Total stockholders' equity                                                                  8,981,813       22,141,217
- -----------------------------------------------------------------------------------------------------------------------

Commitments and contingencies (notes 1, 4, 6, 7, 8, and 9)

Total liabilities, redeemable stock, options and warrants, minority interest
     and stockholders' equity                                                         $   223,599,891       37,626,965
=======================================================================================================================

See accompanying notes to consolidated financial statements.


</TABLE>

<PAGE>
AMERICAN COMMUNICATIONS SERVICES, INC.

Consolidated Statements of Operations

June 30, 1996 and 1995
<TABLE>
<CAPTION>

=====================================================================================================================

                                                                                               1996             1995
- ---------------------------------------------------------------------------------------------------------------------

<S>                                                                               <C>                        <C>    
Revenues (note 1)                                                                 $       3,415,137          388,887
- ---------------------------------------------------------------------------------------------------------------------

Operating expenses:
      Network development and operations                                                  5,264,570        3,282,183
      Selling, general and administrative                                                13,463,775        4,597,615
      Noncash stock compensation (note 6)                                                 2,735,845        6,419,412
      Depreciation and amortization                                                       3,078,426          497,811
- ---------------------------------------------------------------------------------------------------------------------

Total operating expenses                                                                 24,542,616       14,797,021

Non-operating income (expenses):
      Interest and other income                                                           4,409,733          217,525
      Interest and other expense (note 4)                                              (10,476,904)        (170,095)
      Debt conversion expense (note 4)                                                            -        (385,000)
- ---------------------------------------------------------------------------------------------------------------------

Loss before minority interest                                                          (27,194,650)     (14,745,704)

Minority interest                                                                           412,606           48,055
- ---------------------------------------------------------------------------------------------------------------------

Net loss                                                                               (26,782,044)     (14,697,649)

Preferred stock dividends and accretion (note 3)                                        (3,871,328)      (1,070,985)
- ---------------------------------------------------------------------------------------------------------------------

Net loss to common stockholders                                                   $    (30,653,372)     (15,768,634)
=====================================================================================================================

Net loss per common share                                                         $          (4.96)          (3.30)
=====================================================================================================================

Average number of common shares outstanding (note 3)                                      6,185,459        4,771,689
=====================================================================================================================

See accompanying notes to consolidated financial statements.


</TABLE>

<PAGE>

AMERICAN COMMUNICATIONS SERVICES, INC.

Consolidated Statements of Stockholders' Equity (Deficit)

Years ended June 30, 1996 and 1995

================================================================================
<TABLE>
<CAPTION>

                                                                                                                              
                                                                        Series A-1           Series B                         
                                                   Preferred Stock    Preferred Stock    Preferred Stock      Common Stock    '
                                                                                                                              
                                                  ------------------ ------------------ --------------------------------------
                                                  Shares      Amount Shares      Amount Shares      Amount   Shares    Amount 
                                                                                                                              
- ------------------------------------------------------------------------------------------------------------------------------

<S>                                               <C>    <C>               <C>     <C>        <C>     <C>        <C>         <C>    
Balances at June 30, 1994                         1,700  $ 1,700,000            $              $         2,755,005$        

    Preferred Stock exchange (note 12)            (1,700)  (1,700,000)                                   548,387          
    Set par value for common stock (note 5)                                                                        33,033 
    Acquisition of Piedmont Teleport, Inc. (note                                                          62,000          
    13)
    Write-ff of note receivable for common stock                                               
    Series A Preferred private placement, net of                           186,664   186,664                                  
    related costs (note 3)
    Series B Preferred private placement, net of                                               227,500   227,500                   
    related costs (note 3)
    Issuance of put right obligations (notes 6                                                               
    and 9)
    Cancellation of put right obligation (note                                                               
    7)
    Warrant and stock option exercises and stock                                                         2,379,390   23,794 
    grant (note 6)
    Establish limitation on common stock put                                                                 
    right obligation (note 6)
    Series A Preferred Stock dividends accrued                                                               
    (note 3)
    Net loss                                                                                                 
- --------------------------------------------------------------------------------------------------------------------

Balances at June 30, 1995                                   $ 186,664     $ 186,664  227,500 $ 227,500  5,744,782$  56,827 

    Issuance of Series B-4 Preferred Stock (note                                                50,000     50,000                   
    3)
    Issuance of detachable warrants (note 4)                                                                   
    Warrants and stock options exercised (note                                                            900,909     9,010 
    5)
    Series A and B Preferred Stock dividends                                                                  
    accrued (note 3)
    Cancellation of and adjustments to put right                                                              
    obligations (note 6)
    Stock compensation expense                                                                                
    Net loss                                                                                                  
- ------------------------------------------------------------------------------------------------------------------------

Balances at June 30, 1996                             $        186,664     $ 186,664  277,500 $ 277,500  6,645,691$  65,837 
==============================================================================================================================

See accompanying notes to consolidated financial statements.
</TABLE>

<TABLE>
<CAPTION>

                                                                              Notes                       
                                                            Additional      receivable                         Total
                                                            paid-in         on sale of         Accumulated     stockholders
                                                            capital         common stock          deficit      equity (deficit)
- -------------------------------------------------------------------------------------------------------------------------------
                                                                                            
 
                                                                                            
<S>                                                         <C>             <C>              <C>                 <C>            
Balances at June 30, 1994                                   1,080,566         (2,750)        (6,043,573)         (3,265,757) 
                                                                                                  
    Preferred Stock exchange (note 12)                      1,700,000                                                   
    Set par value for common stock (note 5)                  (33,033)                                                   
    Acquisition of Piedmont Teleport, Inc. (note 13)                                                                  
    Write-off of note receivable for common stock             (2,750)       2750                                        
    Series A Preferred private placement, net of           15,009,461                                         15,196,125  
    related costs (note 3)                                                                 
    Series B Preferred private placement, net of           20,434,000                                         20,661,500  
    related costs (note 3)                                                                 
    Issuance of put right obligations (notes 6               (53,303)                                           (53,303)   
    and 9)                                                                                 
    Cancellation of put right obligation (note                487,500                                            487,500   
    7)                                                                                     
    Warrant and stock option exercises and stock              349,030                                            372,824   
    grant (note 6)                                                                         
    Establish limitation on common stock put                4,510,962                                          4,510,962   
    right obligation (note 6)                                                              
    Series A Preferred Stock dividends accrued            (1,070,985)                                        (1,070,985) 
    (note 3)                                                                               
    Net loss                                                                                 (14,697,649)    (14,697,649)
- -----------------------------------------------------------------------------------------  
                                                                                           
Balances at June 30, 1995                                 42,411,448                          (20,741,222)      22,141,217  
                                                                                           
    Issuance of Series B-4 Preferred Stock (note           4,950,000                                           5,000,000   
    3)                                                                                     
    Issuance of detachable warrants (note 4)               8,684,000                                           8,684,000   
    Warrants and stock options exercised (note               289,360                                             298,370   
    5)                                                                                     
    Series A and B Preferred Stock dividends             (3,871,328)                                         (3,871,328) 
    accrued (note 3)                                                                       
    Cancellation of and adjustments to put right             775,753                                             775,753   
    obligations (note 6)                                                                   
    Stock compensation expense                             2,735,845                                           2,735,845   
    Net loss                                                                                 (26,782,044)    (26,782,044)
- -----------------------------------------------------------------------------------------  
                                                                                           
Balances at June 30, 1996                                 55,975,078                          (47,523,266)       8,981,813   
                                                  ========================================  
</TABLE>
<PAGE>




AMERICAN COMMUNICATIONS SERVICES, INC.

Consolidated Statements of Cash Flows

Years ended June 30, 1996 and 1995
<TABLE>
<CAPTION>

========================================================================================================================

                                                                                                   1996            1995
- ------------------------------------------------------------------------------------------------------------------------
<S>                                                                                        <C>             <C>  
Cash flows from operating activities:
     Net loss                                                                              $ (26,782,044)  (14,697,649)
     Adjustments to reconcile net loss to net cash used in operating activities:
        Depreciation and amortization                                                         3,078,426         497,811
        Interest deferral and accretion                                                      10,447,687               -
        Amortization of deferred financing fees                                                 668,317         323,900
        Provision for doubtful accounts                                                         180,940           8,570
        Loss attributed to minority interest                                                  (412,606)        (48,055)
        Noncash compensation, consultants and other expenses                                  2,735,845       6,419,412
        Noncash debt conversion expense                                                               -         385,000
        Changes in operating assets and liabilities:
           Trade accounts receivable                                                          (565,764)       (359,007)
           Restricted cash related to operating activities                                            -         200,000
           Other current assets                                                               (911,140)        (92,325)
           Other assets                                                                       (107,574)        (26,545)
           Accounts payable                                                                  17,474,179       3,170,885
           Accrued financing fees                                                            (1,542,255)      1,542,255
           Accrued employee costs                                                              (62,247)         719,333
           Other accrued liabilities                                                          (382,792)       1,055,673
- ------------------------------------------------------------------------------------------------------------------------

Net cash used in operating activities                                                         3,818,972       (900,742)
- ------------------------------------------------------------------------------------------------------------------------

Cash flows from investing activities:
     Purchase of net assets of Piedmont Teleport, Inc.                                                -        (19,135)
     Purchase of equipment and furniture                                                     (2,966,987)      (306,454)
     Restricted cash related to network activities                                           (2,999,706)      (752,000)
     Network development costs                                                               (57,889,227)  (14,996,303)
- ------------------------------------------------------------------------------------------------------------------------

Net cash used in investing activities                                                        (63,855,920)  (16,073,892)
- ------------------------------------------------------------------------------------------------------------------------

Cash flows from financing activities:
     Issuance of notes payable                                                               166,888,210      3,510,349
     Payment of deferred financing fees                                                      (8,710,387)      (310,175)
     Warrant and stock option exercises                                                         298,370         372,824
     Issuances of Series A Preferred Stock, net of offering costs and conversion of bridge            -      10,962,046
     financing
     Issuances of Series B Preferred Stock, net of offering costs                             5,000,000      20,661,500
     Issuance of warrants with 2005 Notes                                                     8,684,000               -
     Issuance of notes payable - stockholders                                                         -         250,000
     Proceeds from sale of minority interest in subsidiaries                                    378,474         242,457
     Payments of notes payable - stockholders                                                 (146,083)       (481,692)
     Payments of bridge notes                                                                         -     (1,000,000)
     Payments of secured note                                                                         -        (75,000)
     Payments of secured convertible notes                                                            -        (77,281)
- ------------------------------------------------------------------------------------------------------------------------

Net cash provided by financing activities                                                    172,392,584     34,055,028
- ------------------------------------------------------------------------------------------------------------------------

Net increase in cash and cash equivalents                                                    112,355,636     17,080,394
                                                                                                      -
Cash and cash equivalents, beginning of year                                                 20,350,791       3,270,397
- ------------------------------------------------------------------------------------------------------------------------

Cash and cash equivalents, end of year                                                     $ 132,706,427     20,350,791
========================================================================================================================

Supplemental disclosure of cash flow information - interest paid on all debt obligations   $     29,217         219,554
========================================================================================================================

Supplemental disclosure of noncash investing and financing activities:

Equipment financing                                                                        $    343,024               -
========================================================================================================================
Dividends declared in connection with Series A Preferred Stock                             $  3,871,328       1,070,985
========================================================================================================================
Bridge financing, secured convertible notes, and notes payable - stockholders converted to
     equity in connection with private placements                                          $          -       4,080,079
========================================================================================================================
Cancellation of and adjustments to put right obligations                                   $  (775,753)       (487,500)
========================================================================================================================
Write off of note receivable from sale of common stock                                     $          -           2,750
========================================================================================================================
Preferred stock exchange                                                                   $          -       1,700,000
========================================================================================================================
Purchase of Piedmont Teleport, Inc. for common stock and related put right obligation      $          -         192,303
========================================================================================================================
Negotiation of right-of-way agreement for option discount                                  $          -         201,000
========================================================================================================================

See accompanying notes to consolidated financial statements.

</TABLE>

<PAGE>

AMERICAN COMMUNICATIONS SERVICES, INC.


Notes to Consolidated Financial Statements

June 30, 1996 and 1995

================================================================================

                                                                    (Continued)

                                       F-1
   (1)   Basis of Presentation and Related Matters

         Organization

         The consolidated  financial statements include the accounts of American
         Communications Services, Inc. and its majority-owned subsidiaries (ACSI
         or the Company).  As discussed in note 4 to the consolidated  financial
         statements, all of the Company's subsidiaries are wholly owned with the
         exception  of the  Louisville,  Fort Worth,  El Paso,  Greenville,  and
         Columbia  subsidiaries,  in which the Company has a 92.75%  controlling
         ownership interest. All material intercompany accounts and transactions
         have been eliminated in consolidation.

         Business

         ACSI  constructs  and operates  digital fiber optic networks and offers
         local  telecommunications  services  to  long  distance  companies  and
         business  and  government  end  users  in  selected   target   markets,
         principally  in  the  southern  United  States.  The  Company  provides
         nonswitched  dedicated  services,  including  special access,  switched
         transport  and private line  services.  In addition to these  dedicated
         services,  the Company is developing  and has begun offering high speed
         data  services  to  business,   government  and  other   communications
         carriers,  including Internet service  providers.  The Company has also
         begun offering on a limited basis enhanced voice messaging services and
         plans to begin  offering  local  switched voice services in the future.
         The Company is a competitive  local exchange carrier and is referred to
         as a competitive access provider with respect to provision of dedicated
         services.

         To date,  the Company has funded the  construction  of its networks and
         its  operations  with external  financing.  Prior to November 1995, the
         primary  sources of funds were two Preferred  Stock  private  offerings
         completed  in  October  1994 and June 1995  (see note 3),  and a credit
         facility from AT&T Credit  Corporation  (see note 4). During the fiscal
         year ended June 30, 1996, the Company raised  additional  funds through
         an  additional  sale of  Preferred  Stock  (see  note 3),  two  private
         offerings of Senior Notes,  one of which included  detachable  warrants
         and  further  borrowings  under  the  AT&T  Credit  Corporation  Credit
         Facility (see note 4).

         The Company has utilized and intends to continue to utilize  funds from
         its existing equity and debt  financings  towards the completion of its
         business plan,  including the  development  and  construction  of fiber
         optic  networks,  the  further  development  and  introduction  of  new
         services, including high speed data, enhanced voice messaging and local
         switched  voice  services,  for  expansion  of the  Company's  existing
         networks and to fund negative operating cash flow until cash flow break
         even. To meet its capital requirements,  the Company may be required to
         sell  additional  debt or equity  securities  or increase  its existing
         credit  facility.  The  Company  may also need to seek such  additional
         financing to maintain balance sheet and liquidity ratios required under
         certain of its debt instruments.



<PAGE>


================================================================================
AMERICAN COMMUNICATIONS SERVICES, INC.
================================================================================

Notes to Consolidated Financial Statements



================================================================================

   (1)   Continued

         Cash Equivalents

         Cash  equivalents  generally  consist of highly liquid debt instruments
         with an initial maturity date of three months or less. At June 30, 1996
         and 1995,  cash  equivalents  consisting of government  securities  and
         overnight  investments are approximately  $137,938,000 and $20,945,000,
         respectively.

         The Company  has  provided  performance  bonds and letters of credit in
         various  cities  in  connection  with its  operations,  resulting  in a
         restriction  of cash  amounting to $2,342,000  and $752,000 at June 30,
         1996 and 1995,  respectively.  The face amount of all bonds and letters
         of credits was approximately $4,629,000 as of June 30, 1996.

         In addition,  as required under the AT&T Credit  Facility (see note 4),
         the Company has approximately  $1,410,000  deposited in restricted cash
         accounts at June 30, 1996.

         Networks, Equipment and Furniture

         Networks,  equipment and furniture are stated at cost less  accumulated
         depreciation.  Costs capitalized  during the network  development stage
         include  expenses  associated  with  network  engineering,  design  and
         construction,   negotiation  of  rights-of-way,   obtaining  legal  and
         regulatory  authorizations  and the amount of interest costs associated
         with the network development. In 1996 and 1995, the Company capitalized
         interest of approximately $3,051,000 and $536,000, respectively.

         Provision  for  depreciation  of networks,  equipment  and furniture is
         computed using the straight-line method over the estimated useful lives
         of the  assets  beginning  in the  month  a  network  is  substantially
         complete  and  available  for  use  and  equipment  and  furniture  are
         acquired.

         The estimated useful lives of the Company's principal classes of assets
are as follows:
          Networks:
                Fiber optic cables and installation costs      20 years
                Telecommunications equipment                   3-7 years
                Interconnection and collocation costs          3-10 years
                Leasehold improvements                         Life of lease
                Furniture and fixtures                         5 years

         Deferred Financing Fees

         Deferred financing fees include commitment fees and other costs related
         to certain debt financing  transactions  and are being  amortized using
         the  effective  interest  method over the  initial  term of the related
         debt.



<PAGE>


   (1)   Continued

         Revenue Recognition

         Revenue is recognized  as services are provided.  Billings to customers
         for  services in advance of  providing  such  services are deferred and
         recognized as revenue when earned.

         Earnings (Loss) Per Common Share

         The  computation of earnings  (loss) per common share is based upon the
         weighted  average  number of common shares  outstanding.  The effect of
         including common stock options and warrants as common stock equivalents
         would be anti-dilutive and is excluded from the calculation of loss per
         common share.

         Income Taxes

         Deferred income taxes are recognized for temporary  differences between
         financial  statement and income tax bases of assets and liabilities and
         loss  carryforwards  and tax credit  carryforwards for which income tax
         benefits  are  expected  to be realized  in future  years.  A valuation
         allowance is  established  to reduce  deferred tax assets if it is more
         likely than not that all, or some portion,  of such deferred tax assets
         will not be realized.  The effect on deferred  taxes of a change in tax
         rates is recognized in income in the period that includes the enactment
         date.

         Reclassifications

         Certain  reclassifications  have  been  made to the  1995  consolidated
         financial  statements  to  conform  to  the  1996  presentation.   Such
         reclassifications  had no  effect  on net loss or  total  stockholders'
         equity.

         Effect of New Accounting Standards

         In March 1995, the Financial  Accounting  Standards Board (FASB) issued
         SFAS No. 121,  Accounting for the  Impairment of Long-Lived  Assets and
         for Long-Lived Assets to be Disposed of, which will require the Company
         to  review  for  the  impairment  of  long-lived   assets  and  certain
         identifiable  intangibles  to be held and used by the Company  whenever
         events or changes in circumstances indicate that the carrying amount of
         an asset may not be  recoverable.  Adoption of SFAS No. 121 is required
         in fiscal year 1997.

         In  October  1995,  the  FASB  issued  SFAS  No.  123,  Accounting  for
         Stock-Based  Compensation,  which establishes a fair value based method
         for  financial   accounting  and  reporting  for  stock-based  employee
         compensation  plans.  However,  the new standard allows compensation to
         continue to be measured by using the  intrinsic  value based  method of
         accounting  prescribed by Accounting  Principles  Board Opinion No. 25,
         Accounting  for  Stock  Issued  to  Employees,  but  requires  expanded
         disclosures. SFAS No. 123 is effective in fiscal year 1997.


<PAGE>


   (1)   Continued

         While the Company does not know  precisely the impact that will result
         from  adopting  SFAS No. 121 and SFAS No. 123,  the  Company  does not
         expect the adoption of SFAS No. 121 or SFAS No. 123 to have a material
         effect on the Company's  consolidated financial position or results of
         operations.

         Use of Estimates

         The preparation of the consolidated  financial statements in conformity
         with generally accepted  accounting  principles  requires management to
         make  estimates  and  assumptions  that affect the reported  amounts of
         assets  and  liabilities  and  disclosure  of  contingent   assets  and
         liabilities at the dates of the consolidated  financial  statements and
         reported  amounts of revenue and expenses during the reporting  period.
         Actual results may differ from those estimates.

         Concentration of Credit Risk

         The Company receives a significant portion of its revenues from a small
         number   of   major   customers,   particularly   the   long   distance
         telecommunications  companies that service the Company's  markets.  For
         the years  ended  June 30,  1996 and 1995,  approximately  60% and 85%,
         respectively,  of the Company's  revenues were attributable to services
         provided   to  four   and   three   of  the   largest   long   distance
         telecommunications  companies,  respectively.  The  loss  of any one of
         these customers could have an adverse  material impact on the Company's
         revenues.

<TABLE>
<CAPTION>

   (2)   Networks, Equipment and Furniture

         Networks, equipment and furniture consists of the following at June 30:

         <S>                                                                    <C>                       <C>       
         Networks and telecommunications equipment                              $76,853,865               15,570,450
         Furniture and fixtures                                                   1,982,910                  188,534
         Computer software                                                          948,848                   56,485
         Leasehold improvements                                                     362,341                   82,093

                                                                                 80,147,964               15,897,562

         Less - accumulated depreciation and amortization                          3,408,698                  330,272

         Total, net of accumulated depreciation and amortization               $ 76,739,266               15,567,290




</TABLE>

<PAGE>


   (3)   Private Placements

         In October 1994,  the Company  completed a private  placement of its 9%
         Series A Convertible  Preferred  Stock,  $1.00 par value (the "Series A
         Preferred Stock"). There were 138,889 shares issued for cash at $90 per
         share  resulting in proceeds of  $10,962,046,  net of  placement  agent
         commissions and related placement fees and costs.

         In  addition,   bridge   financing  was  converted  and  several  other
         obligations  were retired with proceeds of the offering.  See note 4 to
         the consolidated financial statements.  Further, as discussed in note 6
         to the  consolidated  financial  statements,  certain parties  obtained
         warrants to purchase  shares of the  Company's  common  stock.  In June
         1995,  the Series A  Preferred  Stock was  exchanged  for an  identical
         number of 9% Series A-1 Convertible  Preferred Stock,  $1.00 par value.
         (the "Series A-1 Preferred Stock").

         In June 1995,  the  Company  completed  a private  placement  of its 9%
         Series B-1 Convertible Preferred Stock (the "Series B-1 Preferred"), 9%
         Series B-2 Convertible Preferred Stock (the "Series B-2 Preferred") and
         9% Series B-3 Convertible Preferred Stock (the "Series B-3 Preferred"),
         each having a par value of $1.00 per share.  There were 227,500  shares
         issued for cash at $100 per share with proceeds of $20,661,500,  net of
         placement agent  commissions  and related  placement fees and costs. In
         November,  1995,  50,000 shares of 9% Series B-4 Convertible  Preferred
         Stock (the  "Series  B-4  Preferred")  were issued for cash of $100 per
         share  resulting in proceeds of  $5,000,000.  The Series B-1 Preferred,
         the Series B-2  Preferred,  the Series B-3 Preferred and the Series B-4
         Preferred  are  hereafter  collectively  referred  to as the  "Series B
         Preferred  Stock."  The  Series  A-1  Preferred  Stock and the Series B
         Preferred  Stock  are  hereafter   collectively   referred  to  as  the
         "Preferred Stock." Further,  as discussed in note 6 to the consolidated
         financial  statements,  certain parties  obtained  warrants to purchase
         shares of the Company's common stock.

         The Company's  Preferred  Stock and common stock vote as a single class
         (except with respect to the  election of  directors  and certain  other
         transactions  and matters)  with the common stock  entitled to one vote
         per share and the Preferred  Stock  entitled to one vote for each share
         of common stock into which it is  convertible.  At June 30,  1996,  the
         outstanding  Series A-1 Preferred Stock was convertible  into 7,466,560
         shares of common stock and the outstanding Series B Preferred Stock was
         convertible into 9,910,718 shares of common stock.

         Pursuant to the Company's  certificate of  incorporation,  the board of
         directors is currently  comprised  of seven  directors.  The holders of
         common  stock are entitled to elect four  directors  and the holders of
         the Preferred Stock are entitled to elect three directors. In addition,
         certain  transactions and matters require the consent of the holders of
         at least 75% of the  shares of  Preferred  Stock  voting as a  separate
         class.

         Certain holders of the Company's  Preferred Stock and common stock have
         entered  into  a  Voting  Rights  Agreement   pursuant  to  which  such
         stockholders  have agreed to vote their shares of  Preferred  Stock and
         common stock for the election of directors  designated  by the majority
         Preferred stockholders.


<PAGE>


   (3)   Continued

         In  connection  with its Series A-1 and Series B Preferred  Stock,  the
         Company has recorded approximately $4,942,000 and $1,071,000 as of June
         30, 1996 and 1995,  respectively,  as a reduction in additional paid-in
         capital,  for the  payment  of  anticipated  dividends.  The  Company's
         certificate of incorporation  requires the Company to accrue dividends,
         on a quarterly  basis, at an annual rate of 9% of the face value of the
         Series A-1 and B Preferred Stock.

         Although the Board of Directors of the Company has not taken any formal
         action  as of June  30,  1996,  as a  condition  of the  aforementioned
         provisions of the certificate of incorporation, the dividends have been
         deemed declared and properly reflected in the accompanying consolidated
         financial  statements  as of June 30,  1996 and 1995.  Pursuant  to the
         Company's certificate of incorporation, dividends accrued shall be paid
         cumulatively,  beginning December 31, 1997, or earlier upon conversion.
         Upon such  conversion  prior to December 31, 1997,  the Company may, in
         lieu of accrued and unpaid  dividends,  issue  promissory  notes to the
         holders of the Preferred Stock. The Company expects to issue promissory
         notes to the  holders  on  January 1, 1998 for  dividends  accrued,  if
         conversion has not occurred,  subject to  restrictions  included in the
         Senior  Discount Note  Indentures.  Conversion may occur at any time at
         the  holder's  option  or  automatically,  upon  a  certain  qualifying
         issuance of common  stock.  As of June 30,  1996,  no  conversions  had
         occurred.

<TABLE>
<CAPTION>

   (4)   Debt

         <S>                                                                    <C>                      <C>
         Long-term debt at June 30 consists of the following:
                                                                                 1996                          1995
         Notes payable - stockholders at 10-15%, maturing                      $      -                  $    146,083
         September 15, 1995

         AT&T Credit Corporation equipment and working
         capital financing facility                                              14,971,122                 3,652,085

         2006 Senior Discount notes, interest at 12 3/4%,
         maturing April 1, 2006                                                  66,635,887                        -

         2005 Senior Discount notes, interest at 13%,
         maturing November 1, 2005                                              102,432,137                        -

         Secured equipment note payable,  interest of 9.98%,  payable in 36 equal
         monthly installments of $2,766, including interest commencing March 1,
         1996                                                                       343,024                        -

         Total Long-term debt                                                   184,382,170                  3,798,168
         Less current portion                                                       252,809                    146,083
                                                                                    -------                    -------

                                                                               $184,129,361                  3,652,085
</TABLE>


<PAGE>


   (4)   Continued

         Principal  payments  for  each of the  years  from  1997  to 2001  and
         thereafter, are due as follows at June 30, 1996:


         Year ending June 30,                                   Amount
         -------------------------------------------------------------

          1997                                               $  252,809
          1998                                                  712,372
          1999                                                  861,939
          2000                                                1,323,195
          2001                                                1,902,943
          Thereafter                                        179,328,912
          -------------------------------------------------------------
          
                                                         $  184,382,170
                                                         --------------

         Notes Payable - Stockholders

         At June 30, 1995,  the Company had a total of $146,083 in notes payable
         to stockholders which matured and were repaid on September 14, 1995.

         AT&T Credit Corporation Equipment and Working Capital Financing
         Facility

         In October  1994,  the Company  entered  into the AT&T Credit  Facility
         pursuant to which AT&T Credit  Corporation  has agreed to provide up to
         $31.2 million  (including a reserve for deferred interest) in financing
         for the  development  and  construction  of fiber optic networks by the
         Company's  subsidiaries.  In accordance with the terms of the facility,
         the Company is obligated to use at least 10% of the borrowed  funds for
         purchases of equipment manufactured by AT&T or its affiliates. Pursuant
         to  the  AT&T  Credit  Facility,   during  fiscal  1995  the  Company's
         subsidiaries in Louisville, Fort Worth, Greenville and Columbia entered
         into loan agreements with AT&T Credit  Corporation  providing for up to
         $19.8 million in loans secured by the assets of such  subsidiaries.  As
         of June 30, 1995, an aggregate of  approximately  $3.7 million had been
         borrowed  under these  agreements.  Subsequent  to June 30,  1995,  the
         Company's  subsidiary in E1 Paso entered into a separate loan agreement
         with AT&T  Credit  Corporation  pursuant  to the AT&T  Credit  Facility
         providing for up to an aggregate of approximately $5.5 million in loans
         secured by its  assets.  As of June 30,  1996,  outstanding  borrowings
         under the AT&T  Credit  Facility  totaled  approximately  $15  million,
         including  accrued  interest of  approximately  $1.4 million.  Interest
         rates currently applicable to the loans range from 11.32% to 13.59%.



<PAGE>


   (4)   Continued

         The loans  under the AT&T  Credit  Facility  are  secured by all of the
         assets of the respective borrowing subsidiary,  including its installed
         fiber  optic  system and other  equipment.  The  principal  of borrowed
         amounts is payable in 28 consecutive quarterly installments,  beginning
         with the ninth  quarter  after the date of the loan.  The  principal of
         borrowed amounts may be prepaid in certain  circumstances,  and must be
         prepaid  along with a premium in other  circumstances.  Interest is due
         quarterly.  At the borrowing subsidiary's option, the interest rate may
         be fixed or variable. The borrowing subsidiary has a one-time option to
         convert  all  variable  rate loans to fixed rate  loans.  Upon  certain
         events  of  default,  additional  interest  ranging  from 2% to 4% will
         become payable.  Interest may generally be deferred so long as it would
         not cause the  outstanding  principal  balance to exceed the commitment
         amounts for Capital  Loans and for  Equipment  Loans (as defined in the
         loan documents). To date, the Company has elected to defer all interest
         due under the loans.  In addition,  the AT&T Credit  Facility  includes
         covenants, some of which impose certain restrictions on the Company and
         its subsidiaries  including  restrictions on the declaration or payment
         of  dividends,  the  conduct of  certain  activities,  certain  capital
         expenditures,  the creation of additional  liens or  indebtedness,  the
         disposition of assets,  transactions with affiliates' and extraordinary
         corporate  transactions.  The AT&T Credit Facility imposes restrictions
         on the ability of those  subsidiaries  of ACSI that incur  indebtedness
         thereunder to transfer  funds to ACSI in the form of dividends or other
         distributions.  The AT&T Credit  Facility also imposes  restrictions on
         the  ability  of  such  subsidiaries  to  raise  capital  by  incurring
         additional indebtedness.  These restrictions could limit ACSI's ability
         to meet its  obligations  with  respect  to the  2005  and 2006  Senior
         Discount Notes.  The various  agreements which comprise the AT&T Credit
         Facility terminate on dates ranging from October 1996 to May 1997.

         Pursuant to the AT&T Credit Facility, AT&T Credit Corporation purchased
         7.25%  of the  outstanding  capital  stock  of  each  of the  Company's
         operating subsidiaries for which it provided financing. The Company was
         required to pledge its  interest in these  subsidiaries  to AT&T Credit
         Corporation as a condition to each loan.  Under certain  circumstances,
         this pledge  agreement  also  restricts  the  Company's  ability to pay
         dividends on its capital stock.

         2005 Senior Discount Notes and 2006 Senior Discount Notes

         On November  14,  1995,  the Company  completed  an offering of 190,000
         Units (the "Units") consisting of $190,000,000  principal amount of 13%
         Senior  Discount  Notes due 2005 (the "2005  Notes")  and  warrants  to
         purchase  2,432,000  shares of the Company's common stock at a price of
         $7.15 per share (the "Warrants"). The 2005 Notes will accrete at a rate
         of 13% compounded  semi-annually  to an aggregate  principal  amount of
         $190,000,000  by  November  1, 2000.  Thereafter,  interest on the 2005
         Notes will accrue at the annual rate of 13% and will be payable in cash
         semi-annually.  The Company  received  net  proceeds  of  approximately
         $96,826,000  from the sale of the  Units.  The  value  ascribed  to the
         Warrants was $8,684,000.


<PAGE>


   (4)   Continued

         On March 21, 1996, the Company completed an offering of $120,000,000 of
         12 3/4% Senior Discount Notes due 2006 (the "2006 Notes")  resulting in
         net proceeds of approximately $61,800,000.  The 2006 Notes will accrete
         at a  rate  of  12  3/4%  compounded  semi-annually,  to  an  aggregate
         principal amount of $120,000,000 by April 1, 2001. Thereafter, interest
         on the 2006 Notes will accrue at the annual rate of 12 3/4% and will be
         payable in cash  semi-annually  on April 1 and October 1, commencing on
         October 1, 2001. The 2006 Notes will mature on April 1, 2006.

         The 2005 Notes and 2006 Notes  (collectively  the  "Notes") are general
         unsubordinated and unsecured  obligations of the Company. The Company's
         subsidiaries  have no obligation to pay amounts due on the Notes and do
         not  guarantee  the  notes.   Therefore,   the  Notes  are  effectively
         subordinated to all liabilities of ACSI's subsidiaries, including trade
         payables.  Any rights of the Company and its  creditors,  including the
         holders  of the  Notes,  to  participate  in the  assets  of any of the
         Company's  subsidiaries  upon any liquidation or  reorganization of any
         such  subsidiaries  will  be  subject  to  the  prior  claims  of  that
         subsidiary's creditors.

         The Notes are subject to certain  covenants which,  among other things,
         restrict the ability of ACSI and certain of its  subsidiaries  to incur
         additional indebtedness, pay dividends or make distributions.

         Debt Conversion

         On June 28, 1994, the Company issued a total of $4,300,720 principal of
         its  15  percent  convertible  bridge  notes  due  December  31,  1994,
         including $1,300,720 issued to then existing stockholders. During 1995,
         the holders of $3,300,720 of these  convertible  bridge notes converted
         the notes plus accrued  interest  thereon of $35,754 into 37,073 shares
         of Series A Preferred Stock. The remaining  $1,000,000 principal amount
         was retired by cash payment from the proceeds of the Series A Preferred
         Stock private  offering (see note 3). The Company recorded noncash debt
         conversion expense of $231,000  associated with the related unamortized
         financing fees.

         At June 30, 1994,  the Company had  outstanding  loans from  affiliates
         with an  aggregate  principal  balance  of  $606,640,  which were notes
         secured by certain assets of the Company.  These loans bore interest at
         15% per annum and had a scheduled maturity date of December 31, 1994.

         In October  1994,  the  holders of $529,359  principal  amount of these
         notes,  plus accrued interest  thereon of $29,368,  converted the notes
         into 7,924 shares of Series A Preferred Stock. The remaining  principal
         on the  secured  convertible  notes of  $77,281  was  retired by a cash
         payment  from the  proceeds  of the Series A  Preferred  Stock  private
         placement  offering  (see note 3). The Company  recorded  noncash  debt
         conversion   expense  of  $154,000  equal  to  the  premium  to  induce
         conversion.


<PAGE>


   (4)   Continued

         In August 1994,  the Company  borrowed  $250,000,  at a rate of 15% per
         annum from an affiliate  that was payable on demand.  In October  1994,
         this note was converted into 2,778 shares of Series A Preferred Stock.


   (5)   Stockholders' Equity

         Common Stock

         In fiscal  1995,  the Company  established  a par value of $.01 for its
issued and outstanding common stock.

         Preferred Stock
<TABLE>


         <S>                                                                                       <C>
         Pursuant to the Series B Preferred Stock offering, as described in note
         3, four classes of Series B Preferred  Stock have been  designated  and
         issued.  The  composition  of the Series B Preferred  Stock at June 30,
         1996 is as follows:

         Preferred Stock, $1.00 par value, 100,000 shares designated as 9% Series                  $  100,000
          B-1 Convertible Preferred Stock authorized, issued and outstanding

          Preferred Stock, $1.00 par value, 102,500 shares designated as 9% Series
          B-2 Convertible Preferred Stock authorized, issued and outstanding                          102,500

          Preferred  Stock,  $1.00 par value,  25,000  shares  designated as 9% Series B-3             25,000
          Convertible Preferred Stock authorized, issued and outstanding

          Preferred Stock, $1.00 par value, 50,000 shares designated                    
          as 9% Series B-4 Convertible Preferred Stock authorized, issued and outstanding              50,000
          ---------------------------------------------------------------------------------------------------



          Total                                                                                     $  277,500
          ----------------------------------------------------------------------------------------------------

</TABLE>





<PAGE>


   (6)   Stock Options and Stock Purchase Warrants

         The Company has a stock option plan which  provides for the granting of
         options to  officers,  employees,  and  consultants  of the  Company to
         purchase shares of its common stock within prescribed periods.

         In 1994,  the Company  entered  into  employment  agreements  with five
         executive  officers.  Pursuant  to the  agreements,  as  amended,  such
         officers  have  been  granted  options  to  purchase  an  aggregate  of
         4,149,834  shares of common  stock of the  Company at  exercise  prices
         ranging  from $.875 to $3.40 per  share.  The  options  vest at various
         dates as specified in the employment  agreements  with 4,069,834 of the
         options  vesting on specific  dates  ranging  from  November 1, 1993 to
         November  4, 2001,  and 80,000 of such  options  which  vested upon the
         occurrence  of  certain  specified  performance  milestones.  When  the
         employment  of these  individuals  with the Company  terminates,  these
         individuals  have the  right to sell  certain  of their  shares  to the
         Company (the put right) for a price equal to fair market value. On June
         26, 1995, the employment  agreements were amended to limit the purchase
         price  paid by the  Company  pursuant  to the put right to a maximum of
         $2,500,000,  which amount is subject to further reductions based on the
         employee's  sale of stock.  During  fiscal 1996,  the limit was further
         reduced to $2,000,000.

         The Company has also issued  500,000  options to a supplier to purchase
         stock at 90% of the fair value at the date of  exercise.  Such  options
         give the  supplier  the  right to sell the stock  acquired  back to the
         Company at fair value under certain circumstances.  None of the options
         have been exercised to date and they expire in December, 1997.

         Stock option  activity for the years ended June 30, 1996 and 1995 is as
follows:

         

                                     Number                    Price Per Share
                                     -----------------------------------------

Balances, June 30, 1994             858,875                     $ .875 - 3.10

     Granted                      4,935,314                       .875 - 4.00
     Exercised                            -                         -      -
     Canceled                     (100,000)                       .875 - 4.00
     ------------------------------------------------------------------------

Balances, June 30, 1995           5,694,189                       .875 - 4.00

     Granted                      1,225,786                       2.25 - 6.27
     Exercised                    (104,699)                       .875 - 4.57
     Canceled                      (70,462)                       2.25 - 6.27
     ------------------------------------------------------------------------

Balances, June 30, 1996           6,744,814                   $  .875  - 6.27
- -----------------------------------------------------------------------------







<PAGE>


   (6)   Continued

         As of June 30,  1996,  a total of  4,681,343  options  are  vested  and
         exercisable.  Noncash  compensation  expense  associated  with employee
         stock options  amounted to $2,735,845  and $6,382,000 in 1996 and 1995,
         respectively.

         During  1995 and 1996 in  connection  with the  Series A-1 and Series B
         Preferred Stock private placements and related bridge note conversions,
         warrants  for  4,367,078  shares of common  stock were issued at prices
         ranging from $.01 to $3.10.  In 1996 and 1995,  1,189,958 and 2,299,967
         of such warrants were exercised  during the year for proceeds  totaling
         approximately $11,899 and $305,000,  respectively.  In 1996, as part of
         the  issuance  at the  2005  Notes,  detachable  warrants  to  purchase
         2,432,000  shares of the Company's common stock at a price of $7.15 per
         share were issued.

         At June 30, 1995,  warrants for 408,391  shares at a price of $.875 per
         share granted pursuant to consulting and subordinated  note agreements,
         during  1994 and  1995,  were  outstanding.  During  1996,  150 of such
         warrants were exercised.

         At June 30, 1996, the remaining warrants outstanding are as follows:
<TABLE>
<CAPTION>

                                                                 Number                        Price Per Share
                                                                 ---------------------------------------------
          <S>                                                    <C>                             <C>
          Pursuant to consulting and subordinated note
          agreements, expiration through September 13,             408,241                       $   0.875
          1996 
          Series A and Series B Preferred Stock placements         877,153                      .01 - 3.10
          2005 Senior Discount Notes offering                    2,432,000                            7.15
          ------------------------------------------------------------------------------------------------

          Total                                                  3,717,394                  $  .875 - 7.15
          ------------------------------------------------------------------------------------------------
</TABLE>




         The  gross  proceeds  that  would be  received  by the  Company  on the
         exercise  of all  outstanding  options and  warrants  is  approximately
         $33,700,000.



<PAGE>


   (7)   Commitments and Contingencies

         Certain Agreements

         The Company has signed  nonexclusive  license  agreements  with various
         utility and inter-exchange carrier companies, including an affiliate of
         one of the country's three largest long distance  carriers,  to install
         and maintain  fiber cable  systems for the Company's use for periods up
         to 15 years or more,  upon  exercising of  extensions  available to the
         parties.  Under  these  agreements,   the  Company  has  use  of  these
         rights-of-way for its  telecommunications  systems, and may be entitled
         to certain payments for providing  telecommunications  service, subject
         to its satisfactory performance of certain agreed upon requirements.

         Retirement Plan

         On  February  1,  1996,  the  Company  began  sponsoring  the  American
         Communications  Services,  Inc.  401(k)  Plan (the  "Plan"),  a defined
         contribution  plan. All  individuals  employed on February 1, 1996 were
         eligible  to  participate.  Participation  to all  other  employees  is
         available  after three  months of  full-time  equivalent  service.  The
         Company  contributions  under the Plan are  discretionary and may be as
         much as 6% of an  employee's  gross  compensation  subject  to  certain
         limits. Total expense under the Plan amounted to approximately  $30,000
         in 1996.

         Legal Proceedings

         On July 24, 1996,  the Company was named as a codefendant  in a lawsuit
         arising from a personal injury sustained during the construction of one
         of its  networks.  At the  time  of the  incident  giving  rise  to the
         lawsuit,  the plaintiff was an employee of a subcontractor hired by the
         Company's general contractor for the construction  project. The lawsuit
         seeks recovery from the Company and the general  contractor of at least
         $25 million plus punitive damages. The Company, the general contractor,
         and the Company's insurance carrier have begun  investigations into the
         facts  surrounding  the incident and intend to defend against this suit
         vigorously.

         In  addition,  the  Company  is  a  party  to  certain  litigation  and
         regulatory  proceedings arising in the ordinary course of business.  In
         the  opinion  of  management,  based upon the  advice of  counsel,  the
         ultimate  disposition of these matters will not have a material adverse
         effect on the Company's consolidated financial position.



<PAGE>


   (8)   Leases

         The Company is obligated under various  noncancelable  operating leases
         for  office  and node space as well as office  furniture.  The  minimum
         future lease obligations under these noncancelable  operating leases as
         of June 30, 1996 are, approximately, as follows:

          Year ending June 30,                                      Amount
          ----------------------------------------------------------------

          1997                                                $  1,566,000
          1998                                                   1,458,000
          1999                                                   1,347,000
          2000                                                   1,245,000
          2001                                                   1,576,000
          Thereafter                                             3,011,000
          ----------------------------------------------------------------

                                                             $  10,203,000
                                                             -------------


         Rent expense for the years ended June 30, 1996 and
         1995 was approximately $1,166,000 and $200,000, respectively.


   (9)   Related-Party Transactions

         In October  1993,  the  Company  executed a  financial  consulting  and
         advisory  agreement with a related party for a period of six months. In
         consideration,  the related party received warrants to purchase 300,000
         shares of ACSI common stock  exercisable at $.875 per share if a future
         equity financing was successfully completed.  The related party had the
         right to resell  the  shares to ACSI for $2.50 per share two years from
         the date of the agreement.  At June 30, 1994,  the Company  provided an
         accrual of $487,500 for this  redemption  privilege  at the  redemption
         price  net  of  the  exercise   price.  In  June  1995,  the  Company's
         obligations  to repurchase  the shares were assumed by a stockholder of
         the Company. Accordingly, as of June 30, 1995, the $487,500 share value
         has been transferred from redeemable  stock,  options,  and warrants to
         additional paid-in-capital.

         On June 16,  1994,  the Company  entered  into a  financial  consulting
         agreement for capital raising  activities with an entity  controlled by
         significant  stockholders  of the Company.  Under this  agreement,  the
         Company paid $153,750 for consulting services rendered through the date
         of the agreement relating to placement of the Convertible Bridge Notes.
         Additionally, the Company agreed to pay a $7,500 monthly consulting fee
         for a two  year  period  beginning  on the  closing  date of the  first
         private  placement.  During 1996 and 1995, the Company paid $90,000 and
         $67,500 under this arrangement, respectively.


<PAGE>


   (9)   Continued

         Effective July 1, 1994, the Company engaged SGC Advisory Services, Inc.
         ("SGC") as a financial and business  consultant for three years. SGC is
         an  affiliate of Steven G.  Chrust,  a former  director of the Company.
         Pursuant to the agreement,  the Company will compensate SGC as follows:
         (1) a monthly  fee of $5,000;  and (2) options to purchase up to 50,000
         shares of the  Company's  Common Stock which vest on July 1, 1997,  and
         are  exercisable on or before July 1, 1999. At the end of each month of
         the term of the  agreement,  SGC earns a credit  against  the  exercise
         price of those  options  equal to 1/36th  of the  exercise  price.  The
         shares  issued upon exercise of the options will be priced at $2.25 per
         share and the shares issued will have piggy back registration rights.


  (10)   Income Taxes

         Temporary  differences and carryforwards that give rise to deferred tax
         assets and liabilities at June 30 are as follows:

<TABLE>
<CAPTION>
                                                                                1996                          1995
                                                                                ----------------------------------
         <S>                                                                   <C>                           <C> 
         Deferred tax assets:
             Capitalized start-up and other costs                              $  3,733,898                  4,163,941
             Stock options - noncash compensation                                 3,848,128                  2,768,488
             Net operating loss carryforwards                                    12,181,162                  1,149,755
             Other accrued liabilities                                              496,634                    454,391
             -------------------------------------------------------------------------------------------------------

          Total gross deferred tax assets                                        20,259,822                  8,536,575

             Less:  valuation allowance                                          18,304,754                  8,291,380
             -------------------------------------------------------------------------------------------------------

          Net deferred tax assets                                                 1,955,068                    245,195

          Deferred tax liabilities - fixed assets depreciation and amortization   1,955,068                    245,195
          ------------------------------------------------------------------------------------------------------------

          Net deferred tax assets (liabilities)                                   $     -                          -
          ----------------------------------------------------------------------------------------------------------
</TABLE>


<PAGE>


  (10)   Continued

         The valuation  allowance for deferred tax assets as of July 1, 1995 and
         1994 was $8,291,380 and $2,375,327, respectively. The net change in the
         total valuation allowance for the year ended June 30, 1996 and 1995 was
         an increase of $10,013,374 and $5,916,053, respectively.  The valuation
         allowances  at June 30,  1996 and  1995  are a result  of the  ultimate
         utilization of the tax benefits related to the deferred tax assets. The
         utilization of the tax benefits associated with net operating losses of
         approximately  $31,000,000  at June  30,  1996 is  dependent  upon  the
         Company's ability to generate future taxable income.  The net operating
         loss  carryforward  period expires  commencing in 2008 through the year
         2011.   Further,   as  a  result  of  certain   financing  and  capital
         transactions, an annual limitation on the future utilization of the net
         operating loss carryforward may have occurred.

         No income tax provision has been provided for the years ended June 30,
         1996 and 1995 as the aforementioned  deferred tax assets have provided
         no tax benefit.


  (11)   Acquisition

         On September 12, 1994 the Company  executed a Stock Purchase  Agreement
         with Piedmont  Teleport,  Inc. under which the Company acquired certain
         assets, liabilities, and certain right-of-way agreements for $20,000 in
         cash and the issuance of 62,000 shares of the  Company's  common stock.
         The  Company   accounted  for  the   acquisition  as  a  purchase  and,
         accordingly,  the purchase  price was allocated to the assets  acquired
         and  liabilities  assumed  based upon their  estimated  fair  values at
         September  12, 1994.  The seller has the right to put these shares back
         to the  Company  on  November  1, 1996 for a price of $2.50 per  share.
         Accordingly,  this  obligation is recorded as  redeemable  stock in the
         accompanying consolidated financial statements.


(12)Fair Value of Financial Instruments

         The following notes summarize the major methods and assumptions used in
         estimating the fair value of financial instruments:

         Cash and Cash Equivalents

         The carrying amount approximates fair value due to the relatively short
         period to maturity of these instruments.

         Letters of Credit

         The fair  value of the  Letters  of credit  is based on fees  currently
charged for similar agreements.



<PAGE>


================================================================================
                                       F-1
================================================================================
(12)Continued

         Short-Term and Long-Term Debt

         The fair value of the  Company's  long term debt is estimated  based on
         the quoted  market prices for the same or similar issue if available or
         based on the present  value of expected  cash flows at rates  currently
         available to the Company borrowing with similar terms.

         The  carrying  amounts  and  fair  values  of the  Company's  financial
instruments at June 30, 1996 were:

         


<TABLE>
<CAPTION>

                                                                                1996
                                                                                ----

                                                              Carrying Value                 Fair Value
                                                              -----------------------------------------

<S>                                                              <C>                          <C>        
Cash and cash equivalents (including restricted cash)            136,458,133                  136,458,133
Letters of credit                                                          -                       69,000
Long-term debt                                                   184,382,170                  183,987,000
- ---------------------------------------------------------------------------------------------------------


===================================================================================================================
</TABLE>

<PAGE>


<TABLE>
<CAPTION>

                                                            EXHIBIT INDEX


====================================================================================================================================
Exhibit
Numbers               Description                                                                                     Page Number
- ------------------------------------------------------------------------------------------------------------------------------------
<C>                   <S>                                                                                             <C>
10.56                 Form of Non-Qualified Stock Option Certificates, as amended,                                    E-1
                      issued to Anthony J. Pompliano.
- ------------------------------------------------------------------------------------------------------------------------------------
10.57                 Employment Agreement between the Company and Harry J.                                           E-2
                      D'Andrea.
- ------------------------------------------------------------------------------------------------------------------------------------
10.58                 Master Amendment to Loan and Security Agreements dated                                          E-3
                      November 30, 1995, among American Communication Services of
                      Louisville, Inc., American Communication Services of Fort
                      Worth, Inc., American Communication Services of Columbia,
                      Inc., American Communication Services of Greenville, Inc.,
                      American Communication Services of El Paso and AT&T Credit
                      Corporation.
- ------------------------------------------------------------------------------------------------------------------------------------
10.59                 Master Reaffirmation of Parent Pledge and Support Agreements                                    E-4
                      dated November 30, 1995, between the Company and AT&T Credit
                      Corporation.
- ------------------------------------------------------------------------------------------------------------------------------------
10.60                 Letter of Amendment to Loan and Security Agreements dated                                       E-5
                      December 19, 1995, among American Communication Services of
                      Fort Worth, Inc., American Communication Services of
                      Columbia, Inc., American Communication Services of
                      Greenville, Inc., American Communication Services of El Paso
                      and AT&T Credit Corporation.
- ------------------------------------------------------------------------------------------------------------------------------------
10.61                 Second Master Amendment to Loan and Security Agreements,                                        E-6
                      Waiver and Equipment Notes Modification Agreement dated
                      September 6, 1996 among American Communication Services of
                      Louisville, Inc., American Communication Services of Fort
                      Worth, Inc., American Communication Services of Columbia,
                      Inc., American Communication Services of Greenville, Inc.,
                      American Communication Services of El Paso and AT&T Credit
                      Corporation.
- ------------------------------------------------------------------------------------------------------------------------------------
10.62                 Second Master Reaffirmation of Parent Pledge and Support                                        E-7
                      Agreements dated September 6, 1996 between the Company and
                      AT&T Credit Corporation.
- ------------------------------------------------------------------------------------------------------------------------------------
10.63                 Master Equipment Lease Agreement dated August 26, 1996,                                         E-8
                      between the Company and AT&T Credit Corporation
- ------------------------------------------------------------------------------------------------------------------------------------
11.1                  Statement re: computation of per share earnings (loss).                                         E-9
- ------------------------------------------------------------------------------------------------------------------------------------
21.1                  Subsidiaries of the Registrant.                                                                 E-10
- ------------------------------------------------------------------------------------------------------------------------------------
23.1                  Consent of KPMG Peat Marwick LLP.                                                               E-11
- ------------------------------------------------------------------------------------------------------------------------------------
27.1                  Financial Data Schedules.                                                                       E-12
====================================================================================================================================
- ------------------------------------------------------------------------------------------------------------------------------------
99.1                  Certain Factors to Consider in Connection with Forward                                          E-13
                      Looking Statements.
====================================================================================================================================
</TABLE>

<PAGE>



                     AMERICAN COMMUNICATIONS SERVICES, INC.
                     NON-QUALIFIED STOCK OPTION CERTIFICATE


                  A. A STOCK  OPTION  for the  purchase  of a total  of  100,000
shares of the common stock,  par value $0.01 (the "Common  Stock"),  of American
Communications  Services,  Inc. (the  "Company")  has been granted to Anthony J.
Pompliano  (the  "Optionee"),  pursuant to  subparagraph  5(c)(ii)(B) of a Third
Amended and Restated Employment  Agreement dated as of June 30, 1995 between the
Optionee  and the Company  (the  "Employment  Agreement").  This option shall be
governed by the Employment  Agreement and, except as otherwise  specifically set
forth herein,  the provisions of the Employment  Agreement  shall control in the
event of any conflict  between the terms set forth herein and the  provisions of
the  Employment  Agreement.  Unless  otherwise  defined  herein,  all  initially
capitalized  terms used herein  shall have the same  meaning as set forth in the
Employment Agreement.
                  B. The exercise price of this option is $2.25 per share (the
"Exercise Price").
                  C. This option may not be  exercised if the issuance of shares
of Common Stock of the Company upon such exercise  would  constitute a violation
of any applicable  Federal or state  securities or other law or regulation.  The
Optionee,  as a condition to his exercise of this option, shall (i) represent to
the Company that the shares of Common Stock of the Company that he acquires upon
exercise of this option are being  acquired by him for investment and not with a
view to distribution or resale,  and that he will not sell or otherwise transfer
such shares unless such


<PAGE>



shares are then registered under a currently  effective  registration  statement
under the  Securities  Act of 1933,  as amended (the "Act"),  or counsel for the
Company is then of the opinion that such  registration is not required under the
Act or any other applicable law, regulation,  or rule of any governmental agency
and (ii) if the shares of Common Stock underlying this option are not registered
under the Act,  acknowledge  that the certificate  evidencing such shares may be
stamped  with  a  restrictive   legend  and  such  shares  will  be  "restricted
securities" as defined in Rule 144 promulgated under the Act.
                  D. This option may not be transferred in any manner  otherwise
than by will or the  laws of  descent  and  distribution,  and may be  exercised
during the  lifetime of the  Optionee  only by the  Optionee.  The terms of this
option shall be binding upon the executors,  administrators,  heirs, successors,
and assigns of the Optionee.
                  E. The option shall vest and be exercisable in its entirety as
of the date hereof,  and to the extent not exercised  prior to such date,  shall
terminate and be of no further effect as of 5:00 p.m. New York City time on June
26, 2000.
                  F. The rights represented by this option may be exercised by
the Optionee by delivery of:
                  a. The exercise form annexed hereto (the "Exercise Form") duly
executed and specifying the number of shares to be purchased, to the Company at
the offices of the Company located at 131 National Business Parkway, Suite 100,
Annapolis Junction,

                                       -2-

<PAGE>



Maryland  20701  (or such  other  office  or  agency  of the  Company  as it may
designate by notice to the Optionee at the address of such Optionee appearing on
the books of the Company)  during normal  business hours on any day other than a
Saturday,  Sunday or day on which  national banks are authorized to close in the
City of New York, State of New York (a "Business Day").
                  b. Payment to the Company,  for the account of the Company, by
cash or by certified or bank cashier's  check or wire transfer,  of the Exercise
Price for the number of shares specified in the Exercise Form in lawful money of
the United States of America.
                  The  Company  agrees  that such  shares  shall be deemed to be
issued to the Optionee as the record owner of such shares as of the commencement
of  business on the date on which this option  shall have been  surrendered  and
payment made for the shares as aforesaid.  Certificates for the shares specified
in the  Exercise  Form  shall  be  delivered  to the  Optionee  as  promptly  as
practicable,  and in any event within ten (10) days  thereafter.  If this option
shall  have been  exercised  only in part,  the  Company  shall,  at the time of
delivery of the certificate or certificates delivered to the Optionee, deliver a
new option  evidencing the right to purchase the remaining shares issuable under
this option,  which new option shall in all other  respects be identical to this
option.  No  adjustment  shall be made on shares  issuable  on  exercise of this
option  for any cash  dividends  paid or  payable to holders of record of Common
Stock out of consolidated earnings or earned surplus prior to the date as

                                       -3-

<PAGE>



of which the Optionee shall be deemed to be the record-holder of such shares.
                  G.       Certain Adjustments.
                  G.1 The number of shares purchasable upon the exercise of this
option and the Exercise Price shall be subject to adjustment as follows:
                  (a) In case the Company  shall (i) pay a dividend in shares of
Common Stock or make a  distribution  in shares of Common Stock,  (ii) subdivide
its outstanding shares of Common Stock (including, without limitation, by way of
stock splits and the like), (iii) combine its outstanding shares of Common Stock
into  a  smaller   number  of   shares  of  Common   Stock  or  (iv)   issue  by
reclassification  of its shares of Common Stock other  securities of the Company
(including  any such  reclassification  in connection  with a  consolidation  or
merger in which the Company is the surviving corporation),  the number of shares
purchasable  upon  exercise of this option  immediately  prior  thereto shall be
adjusted so that the  Optionee  shall be entitled to receive the kind and number
of shares or other  securities  of the Company which he would have owned or have
been  entitled to receive  after the  happening  of any of the events  described
above had this option been exercised  immediately prior to the happening of such
event or any record date with respect  thereto.  An adjustment  made pursuant to
this paragraph (a) shall become effective  immediately  after the effective date
of each such event  retroactive  to the record  date,  if any,  for such  event,
without amendment or modification required to this document.

                                       -4-

<PAGE>



                  (b) In  case  the  Company  shall  issue  rights,  options  or
warrants to all or  substantially  all holders of its outstanding  Common Stock,
without any charge to such holders,  entitling them to subscribe for or purchase
shares of Common  Stock at a price per share  which is lower at the record  date
mentioned below than the then current market price per share of Common Stock (as
defined in paragraph  (d) below),  the number of shares  thereafter  purchasable
upon the exercise of this option shall be determined by  multiplying  the number
of shares theretofore purchasable upon exercise of this option by a fraction, of
which the numerator shall be the number of shares of Common Stock outstanding on
the date of issuance  of such  rights,  options or  warrants  plus the number of
additional  shares of Common Stock offered for subscription or purchase,  and of
which the denominator  shall be the number of shares of Common Stock outstanding
on the date of issuance of such rights,  options or warrants  plus the number of
shares  which the  aggregate  offering  price of the  total  number of shares of
Common Stock so offered would  purchase at the current market price per share of
Common Stock at such record date.  Such  adjustment  shall be made whenever such
rights,  options or warrants are issued, and shall become effective  immediately
after the record date for the determination of stockholders  entitled to receive
such rights, options or warrants.
                  (c)      In case the Company shall distribute to all or
substantially all holders of its shares of Common Stock evidences of its
indebtedness or assets (excluding cash dividends or

                                       -5-

<PAGE>



distributions  payable  out of  consolidated  earnings  or  earned  surplus  and
dividends  or  distributions  referred  to in  paragraph  (a)  above) or rights,
options or warrants,  or convertible or exchangeable  securities  containing the
right to  subscribe  for or purchase  shares of Common  Stock  (excluding  those
referred  to in  paragraph  (b)  above),  then in each case the number of shares
thereafter  purchasable  upon the exercise of this option shall be determined by
multiplying the number of shares  theretofore  purchasable  upon the exercise of
this  option by a fraction,  of which the  numerator  shall be the then  current
market price per share of Common  Stock (as defined in  paragraph  (d) below) on
the date of such  distribution,  and of which the denominator  shall be the then
current  market  price per share of Common  Stock,  less the then fair value (as
determined  in good  faith  by the  Board of  Directors  of the  Company,  or if
requested by the Optionee,  by a leading firm of investment  bankers selected by
the Optionee and reasonably  acceptable to the Company and whose reasonable fees
and  expenses  shall be paid by the Company or as  otherwise  agreed upon by the
Company  and the  Optionee),  of the  portion  of the  assets  or  evidences  of
indebtedness so distributed or of such subscription rights, options or warrants,
or of such  convertible or exchangeable  securities,  applicable to one share of
Common Stock.  Such adjustment  shall be made whenever any such  distribution is
made, and shall become effective on the date of distribution  retroactive to the
record date for the  determination  of  shareholders  entitled  to receive  such
distribution.

                                       -6-

<PAGE>



                  (d) For the purpose of  computation  under (b) and (c) of this
paragraph  G.1,  the current  market price per share of Common Stock at any date
shall be:
                           (x) from and after 30 trading days after consummation
                  of a  Qualifying  Offering  (as such  term is  defined  in the
                  Company's  Certificate  of  Incorporation,  as  amended),  the
                  average of the daily  closing  prices  for the 30  consecutive
                  trading  days  immediately  preceding  such  computation.  The
                  closing  price for each day shall be the last  reported  sales
                  price  regular  way or, in case no such  reported  sale  takes
                  place on such day,  the  average of the  closing bid and asked
                  prices regular way for such day, in each case on the principal
                  national  securities  exchange  on which the  shares of Common
                  Stock are listed or admitted  to  trading,  or, if reported on
                  NASDAQ-National  Market System, the last reported sales price,
                  or, if not so listed or admitted to trading or  reported,  the
                  average  of the  closing  bid and asked  prices of the  Common
                  Stock in the over-the-counter  market as reported by NASDAQ or
                  any comparable system; and
                           (y) on or prior to the  expiration  of the 30 trading
                  day  period set forth in clause  (x)  above,  the fair  market
                  value per share of Common Stock  determined  by a leading firm
                  of investment  bankers selected by the Optionee and reasonably
                  acceptable  to the  Company  and  whose  reasonable  fees  and
                  expenses shall be paid by the Company.

                                       -7-

<PAGE>



                  (e)  No  adjustment  in  the  number  of  shares   purchasable
hereunder shall be required unless such adjustment  would require an increase or
decrease of at least one percent (1%) in the number of shares  purchasable  upon
the exercise of this option;  provided,  however,  that any adjustments which by
reason  of this  paragraph  (e) are not  required  to be made  shall be  carried
forward and taken into account in any subsequent  adjustment.  All  calculations
shall be made to the nearest one-thousandth of a share.
                  (f)  Whenever  the  number  of  shares  purchasable  upon  the
exercise of this option is adjusted,  as herein  provided,  the  Exercise  Price
payable upon the exercise of this option shall be adjusted by  multiplying  such
Exercise Price immediately prior to such adjustment by a fraction,  of which the
numerator  shall be the number of shares  purchasable  upon the exercise of this
option immediately prior to such adjustment,  and of which the denominator shall
be the number of shares purchasable immediately thereafter.
                  (g) No adjustment in the number of shares purchasable upon the
exercise of this option need be made under paragraphs (b) and (c) if the Company
issues  or  distributes  to the  Optionee  the  rights,  options,  warrants,  or
convertible or exchangeable  securities,  or evidences of indebtedness or assets
referred to in those  paragraphs  which the Optionee would have been entitled to
receive had the option been  exercised  prior to the  happening of such event or
the record date with  respect  thereto.  No  adjustment  in the number of shares
purchasable  upon the  exercise  of this  option  may be made for sale of shares
pursuant to a Company plan

                                       -8-

<PAGE>



for reinvestment of dividends or interest.  No adjustment need be made for a
change in the par value of the shares.
                  (h) The Company shall not, by amendment of its  Certificate of
Incorporation  or through  any  reorganization,  recapitalization,  transfer  of
assets, consolidation, merger, dissolution, issue or sale of securities, rights,
options or warrants or any other  voluntary  action,  avoid or seek to avoid the
observance or performance of any of the terms to be observed or performed  under
this paragraph G.1 by the Company, but will at all times in good faith assist in
carrying out all of the  provisions  of this  paragraph G.1 and in the taking of
such actions as may be necessary or  appropriate  in order to protect the rights
of the Optionee under this paragraph G.1 against impairment.
                  (i) For the purpose of this paragraph G.1, the term "shares of
Common  Stock" shall mean (i) the class of stock  designated as the common stock
of the Company at the date of this Certificate, or (ii) any other class of stock
resulting from successive changes or  reclassification of such shares consisting
solely of changes in par value,  or from par value to no par value. In the event
that at any time,  as a result of an  adjustment  made pursuant to paragraph (a)
above,  the Optionee  shall become  entitled to purchase any  securities  of the
Company other than shares of Common Stock,  thereafter  the number of such other
shares so  purchasable  upon exercise of this option,  and the Exercise Price of
such shares, shall be subject to adjustment from time to time in a manner and on
terms as nearly equivalent as practicable to the

                                       -9-

<PAGE>



provisions  with respect to the shares  contained in paragraphs (a) through (h),
inclusive, above, and the paragraphs G.2 through G.4, inclusive, with respect to
the shares, shall apply on like terms to any such other securities.
                  (j) Upon the  expiration of any rights,  options,  warrants or
conversion or exchange privileges, if any thereof shall not have been exercised,
the Exercise  Price and the number of shares  shall,  upon such  expiration,  be
readjusted  and  shall  thereafter  be such as it  would  have  been had it been
originally  adjusted (or had the original  adjustment not been required,  as the
case may be),  as if (A) the only  shares  of Common  Stock so  issued  were the
shares of Common  Stock,  if any,  actually  issued or sold upon the exercise of
such rights,  options,  warrants or conversion  or exchange  rights and (B) such
shares of  Common  Stock,  if any,  were  issued  or sold for the  consideration
actually  received  by  the  Company  upon  such  exercise  plus  the  aggregate
consideration,  if any, actually received by the Company for the issuance,  sale
or grant of all such rights, options,  warrants or conversion or exchange rights
whether or not exercised;  provided,  further,  that no such readjustment  shall
have the effect of increasing  the Exercise  Price or  decreasing  the number of
shares by an amount in excess of the amount of the adjustment  initially made in
respect to the  issuance,  sale or grant of such  rights,  options,  warrants or
conversion or exchange rights.
                  G.2. Notice of Adjustment.  Whenever the number of shares or
the Exercise Price payable upon exercise of this option is

                                      -10-

<PAGE>



adjusted,  as herein  provided,  the Company shall promptly mail by first class,
postage prepaid, to the Optionee, notice of such adjustment or adjustments and a
certificate of a firm of independent public accountants selected by the Board of
Directors  of the Company  (who may be the regular  accountants  employed by the
Company)  setting forth the number of shares and the Exercise Price payable upon
exercise of this option after such  adjustment,  setting forth a brief statement
of the facts  requiring  such  adjustment  and setting forth the  computation by
which such adjustment was made.
                  G.3. No Adjustment for Dividends.  Except as provided in
paragraph G.1, no adjustment in respect of any dividends shall be made during
the term of this option or upon the exercise of this option.
                  G.4. Preservation   of   Purchase   Rights   Upon   Merger,
Consolidation,  etc. In case of any  consolidation of the Company with or merger
of the Company  into  another  corporation  or otherwise or in case of any sale,
transfer  or  lease  to  another  corporation  of all or  substantially  all the
property  of  the  Company,   the  Company  or  such   successor  or  purchasing
corporation,  as the case may be,  shall  execute with the Optionee an agreement
that the Optionee shall have the right  thereafter  upon payment of the Exercise
Price in effect  immediately  prior to such action to purchase  upon exercise of
this  option  the kind and amount of shares and other  securities  and  property
which such holder  would have owned or have been  entitled to receive  after the
happening of such consolidation, merger, sale, transfer or lease had this option
been exercised

                                      -11-

<PAGE>



immediately prior to such action, provided that such agreement shall provide for
adjustments  thereafter,   which  shall  be  as  nearly  equivalent  as  may  be
practicable to the adjustments  provided for in this paragraph G. The provisions
of this paragraph G shall similarly apply to successive consolidations, mergers,
sales, transfers or leases.
         H.  Registration Rights.  Optionee shall have the registration rights
with respect to this option as set forth in the Amended and Restated
Registration Rights Agreement dated as of June 30, 1995 and entered into by and
among the Company, the Optionee and the other executive officers of the Company
set forth therein.

                                          AMERICAN COMMUNICATIONS SERVICES, INC.

                                          By: /s/ RICHARD A. KOZAK
                                               Richard A. Kozak
                                               President and Chief Operating
                                                  Officer


Dated as of:  As of June 30, 1995





ATTEST:   /s/ RILEY M. MURPHY,
          Riley M. Murphy, Secretary

                                      -12-

<PAGE>



                                  PURCHASE FORM


                                                                 Date: _________



         TO:  Chief Financial Officer

         The  undersigned  hereby  irrevocably  elects to exercise  the attached
         Non-Qualified  Stock  Option  Certificate  to the  extent of options to
         purchase  _______  shares and hereby makes payment of $_____ in payment
         of the purchase price thereof.

                  INSTRUCTIONS FOR REGISTRATION OF SECURITIES

                  Name:____________________________________

                  Address:_________________________________
                          ---------------------------------



                                                           ---------------------

                                      -13-

<PAGE>



                     AMERICAN COMMUNICATIONS SERVICES, INC.
                     NON-QUALIFIED STOCK OPTION CERTIFICATE


                  A. A STOCK OPTION for the purchase of a total of 50,000 shares
of the  common  stock,  par  value  $0.01  (the  "Common  Stock"),  of  American
Communications  Services,  Inc. (the  "Company")  has been granted to Anthony J.
Pompliano  (the  "Optionee"),  pursuant to  subparagraph  5(c)(ii)(A) of a Third
Amended and Restated Employment  Agreement dated as of June 30, 1995 between the
Optionee  and the Company  (the  "Employment  Agreement").  This option shall be
governed by the Employment  Agreement and, except as otherwise  specifically set
forth herein,  the provisions of the Employment  Agreement  shall control in the
event of any conflict  between the terms set forth herein and the  provisions of
the  Employment  Agreement.  Unless  otherwise  defined  herein,  all  initially
capitalized  terms used herein  shall have the same  meaning as set forth in the
Employment Agreement.
                  B. The exercise price of this option is $2.25 per share (the
"Exercise Price").
                  C. This option may not be  exercised if the issuance of shares
of Common Stock of the Company upon such exercise  would  constitute a violation
of any applicable  Federal or state  securities or other law or regulation.  The
Optionee,  as a condition to his exercise of this option, shall (i) represent to
the Company that the shares of Common Stock of the Company that he acquires upon
exercise of this option are being  acquired by him for investment and not with a
view to distribution or resale, and that

                                       -1-

<PAGE>



he will not sell or otherwise  transfer  such shares unless such shares are then
registered  under  a  currently  effective   registration  statement  under  the
Securities  Act of 1933,  as amended (the "Act"),  or counsel for the Company is
then of the opinion that such  registration is not required under the Act or any
other applicable law, regulation, or rule of any governmental agency and (ii) if
the shares of Common Stock  underlying this option are not registered  under the
Act, acknowledge that the certificate evidencing such shares may be stamped with
a restrictive legend and such shares will be "restricted  securities" as defined
in Rule 144 promulgated under the Act.
                  D. This option may not be transferred in any manner  otherwise
than by will or the  laws of  descent  and  distribution,  and may be  exercised
during the  lifetime of the  Optionee  only by the  Optionee.  The terms of this
option shall be binding upon the executors,  administrators,  heirs, successors,
and assigns of the Optionee.
                  E. The option shall vest and be exercisable in its entirety as
of the date hereof,  and to the extent not exercised  prior to such date,  shall
terminate  and be of no  further  effect as of 5:00  p.m.  New York City time on
October 20, 1999.
                  F. The rights represented by this option may be exercised by
the Optionee by delivery of:
                  a. the exercise form annexed hereto (the "Exercise Form") duly
executed and specifying the number of shares to be purchased, to the Company at
the offices of the Company located at

                                       -2-

<PAGE>



131 National Business Parkway, Suite 100, Annapolis Junction, Maryland 20701 (or
such other office or agency of the Company as it may  designate by notice to the
Optionee at the address of such Optionee  appearing on the books of the Company)
during normal business hours on any day other than a Saturday,  Sunday or day on
which national  banks are authorized to close in the City of New York,  State of
New York (a "Business Day").
                  b. Payment to the Company,  for the account of the Company, by
cash or by certified or bank cashier's  check or wire transfer,  of the Exercise
Price for the number of shares specified in the Exercise Form in lawful money of
the United States of America.
                  The  Company  agrees  that such  shares  shall be deemed to be
issued to the Optionee as the record owner of such shares as of the commencement
of  business on the date on which this option  shall have been  surrendered  and
payment made for the shares as aforesaid.  Certificates for the shares specified
in the  Exercise  Form  shall  be  delivered  to the  Optionee  as  promptly  as
practicable,  and in any event within ten (10) days  thereafter.  If this option
shall  have been  exercised  only in part,  the  Company  shall,  at the time of
delivery of the certificate or certificates delivered to the Optionee, deliver a
new option  evidencing the right to purchase the remaining shares issuable under
this option,  which new option shall in all other  respects be identical to this
option.  No  adjustment  shall be made on shares  issuable  on  exercise of this
option  for any cash  dividends  paid or  payable to holders of record of Common
Stock

                                       -3-

<PAGE>



out of consolidated earnings or earned surplus prior to the date as of which the
Optionee shall be deemed to be the record-holder of such shares.
                  G.  Certain Adjustments.
                  G.1 The number of shares purchasable upon the exercise of this
option and the Exercise Price shall be subject to adjustment as follows:
                  (a) In case the Company  shall (i) pay a dividend in shares of
Common Stock or make a  distribution  in shares of Common Stock,  (ii) subdivide
its outstanding shares of Common Stock (including, without limitation, by way of
stock splits and the like), (iii) combine its outstanding shares of Common Stock
into  a  smaller   number  of   shares  of  Common   Stock  or  (iv)   issue  by
reclassification  of its shares of Common Stock other  securities of the Company
(including  any such  reclassification  in connection  with a  consolidation  or
merger in which the Company is the surviving corporation),  the number of shares
purchasable  upon  exercise of this option  immediately  prior  thereto shall be
adjusted so that the  Optionee  shall be entitled to receive the kind and number
of shares or other  securities  of the Company which he would have owned or have
been  entitled to receive  after the  happening  of any of the events  described
above had this option been exercised  immediately prior to the happening of such
event or any record date with respect  thereto.  An adjustment  made pursuant to
this paragraph (a) shall become effective  immediately  after the effective date
of each

                                       -4-

<PAGE>



such event  retroactive  to the record  date,  if any,  for such event,  without
amendment or modification required to this document.
                  (b) In  case  the  Company  shall  issue  rights,  options  or
warrants to all or  substantially  all holders of its outstanding  Common Stock,
without any charge to such holders,  entitling them to subscribe for or purchase
shares of Common  Stock at a price per share  which is lower at the record  date
mentioned below than the then current market price per share of Common Stock (as
defined in paragraph  (d) below),  the number of shares  thereafter  purchasable
upon the exercise of this option shall be determined by  multiplying  the number
of shares theretofore purchasable upon exercise of this option by a fraction, of
which the numerator shall be the number of shares of Common Stock outstanding on
the date of issuance  of such  rights,  options or  warrants  plus the number of
additional  shares of Common Stock offered for subscription or purchase,  and of
which the denominator  shall be the number of shares of Common Stock outstanding
on the date of issuance of such rights,  options or warrants  plus the number of
shares  which the  aggregate  offering  price of the  total  number of shares of
Common Stock so offered would  purchase at the current market price per share of
Common Stock at such record date.  Such  adjustment  shall be made whenever such
rights,  options or warrants are issued, and shall become effective  immediately
after the record date for the determination of stockholders  entitled to receive
such rights, options or warrants.

                                       -5-

<PAGE>



                  (c) In  case  the  Company   shall   distribute   to  all  or
substantially  all  holders  of its  shares of  Common  Stock  evidences  of its
indebtedness or assets (excluding cash dividends or distributions payable out of
consolidated earnings or earned surplus and dividends or distributions  referred
to in paragraph (a) above) or rights,  options or warrants,  or  convertible  or
exchangeable securities containing the right to subscribe for or purchase shares
of Common Stock  (excluding  those referred to in paragraph (b) above),  then in
each case the number of shares thereafter  purchasable upon the exercise of this
option  shall be  determined  by  multiplying  the number of shares  theretofore
purchasable  upon the  exercise  of this  option  by a  fraction,  of which  the
numerator  shall be the then current  market price per share of Common Stock (as
defined in paragraph (d) below) on the date of such  distribution,  and of which
the  denominator  shall be the then  current  market  price  per share of Common
Stock,  less the then fair  value (as  determined  in good faith by the Board of
Directors of the Company, or if requested by the Optionee,  by a leading firm of
investment  bankers  selected by the Optionee and  reasonably  acceptable to the
Company and whose  reasonable  fees and expenses shall be paid by the Company or
as otherwise agreed upon by the Company and the Optionee), of the portion of the
assets or evidences  of  indebtedness  so  distributed  or of such  subscription
rights, options or warrants, or of such convertible or exchangeable  securities,
applicable to one share of Common Stock.  Such adjustment shall be made whenever
any such distribution is made,

                                       -6-

<PAGE>



and shall become effective on the date of distribution retroactive to the record
date  for  the   determination   of   shareholders   entitled  to  receive  such
distribution.
                  (d) For the purpose of  computation  under (b) and (c) of this
paragraph  G.1,  the current  market price per share of Common Stock at any date
shall be:
                           (x) from and after 30 trading days after consummation
                  of a  Qualifying  Offering  (as such  term is  defined  in the
                  Company's  Certificate  of  Incorporation,  as  amended),  the
                  average of the daily  closing  prices  for the 30  consecutive
                  trading  days  immediately  preceding  such  computation.  The
                  closing  price for each day shall be the last  reported  sales
                  price  regular  way or, in case no such  reported  sale  takes
                  place on such day,  the  average of the  closing bid and asked
                  prices regular way for such day, in each case on the principal
                  national  securities  exchange  on which the  shares of Common
                  Stock are listed or admitted  to  trading,  or, if reported on
                  NASDAQ-National  Market System, the last reported sales price,
                  or, if not so listed or admitted to trading or  reported,  the
                  average  of the  closing  bid and asked  prices of the  Common
                  Stock in the over-the-counter  market as reported by NASDAQ or
                  any comparable system; and
                           (y) on or prior to the expiration of the 30 trading
                  day period set forth in clause (x) above, the fair market
                  value per share of Common Stock determined by a leading

                                       -7-

<PAGE>



                  firm of investment bankers selected by the Optionee and
                  reasonably acceptable to the Company and whose reasonable
                  fees and expenses shall be paid by the Company.
                  (e) No adjustment in the number of shares purchasable
hereunder shall be required unless such adjustment  would require an increase or
decrease of at least one percent (1%) in the number of shares  purchasable  upon
the exercise of this option;  provided,  however,  that any adjustments which by
reason  of this  paragraph  (e) are not  required  to be made  shall be  carried
forward and taken into account in any subsequent  adjustment.  All  calculations
shall be made to the nearest one-thousandth of a share.
                  (f) Whenever  the  number  of  shares  purchasable  upon  the
exercise of this option is adjusted,  as herein  provided,  the  Exercise  Price
payable upon the exercise of this option shall be adjusted by  multiplying  such
Exercise Price immediately prior to such adjustment by a fraction,  of which the
numerator  shall be the number of shares  purchasable  upon the exercise of this
option immediately prior to such adjustment,  and of which the denominator shall
be the number of shares purchasable immediately thereafter.
                  (g) No adjustment in the number of shares purchasable upon the
exercise of this option need be made under paragraphs (b) and (c) if the Company
issues  or  distributes  to the  Optionee  the  rights,  options,  warrants,  or
convertible or exchangeable  securities,  or evidences of indebtedness or assets
referred to in those  paragraphs  which the Optionee would have been entitled to
receive had the option been exercised prior to the happening of

                                       -8-

<PAGE>



such event or the record date with respect thereto.  No adjustment in the number
of shares  purchasable  upon the exercise of this option may be made for sale of
shares pursuant to a Company plan for reinvestment of dividends or interest.  No
adjustment need be made for a change in the par value of the shares.
                  (h) The Company shall not, by amendment of its  Certificate of
Incorporation  or through  any  reorganization,  recapitalization,  transfer  of
assets, consolidation, merger, dissolution, issue or sale of securities, rights,
options or warrants or any other  voluntary  action,  avoid or seek to avoid the
observance or performance of any of the terms to be observed or performed  under
this paragraph G.1 by the Company, but will at all times in good faith assist in
carrying out all of the  provisions  of this  paragraph G.1 and in the taking of
such actions as may be necessary or  appropriate  in order to protect the rights
of the Optionee under this paragraph G.1 against impairment.
                  (i) For the purpose of this paragraph G.1, the term "shares of
Common  Stock" shall mean (i) the class of stock  designated as the common stock
of the Company at the date of this Certificate, or (ii) any other class of stock
resulting from successive changes or  reclassification of such shares consisting
solely of changes in par value,  or from par value to no par value. In the event
that at any time,  as a result of an  adjustment  made pursuant to paragraph (a)
above,  the Optionee  shall become  entitled to purchase any  securities  of the
Company other than shares of Common Stock,  thereafter  the number of such other
shares so

                                       -9-

<PAGE>



purchasable upon exercise of this option, and the Exercise Price of such shares,
shall be  subject  to  adjustment  from time to time in a manner and on terms as
nearly  equivalent as practicable  to the provisions  with respect to the shares
contained in paragraphs (a) through (h),  inclusive,  above,  and the paragraphs
G.2 through  G.4,  inclusive,  with  respect to the shares,  shall apply on like
terms to any such other securities.
                  (j) Upon the  expiration of any rights,  options,  warrants or
conversion or exchange privileges, if any thereof shall not have been exercised,
the Exercise  Price and the number of shares  shall,  upon such  expiration,  be
readjusted  and  shall  thereafter  be such as it  would  have  been had it been
originally  adjusted (or had the original  adjustment not been required,  as the
case may be),  as if (A) the only  shares  of Common  Stock so  issued  were the
shares of Common  Stock,  if any,  actually  issued or sold upon the exercise of
such rights,  options,  warrants or conversion  or exchange  rights and (B) such
shares of  Common  Stock,  if any,  were  issued  or sold for the  consideration
actually  received  by  the  Company  upon  such  exercise  plus  the  aggregate
consideration,  if any, actually received by the Company for the issuance,  sale
or grant of all such rights, options,  warrants or conversion or exchange rights
whether or not exercised;  provided,  further,  that no such readjustment  shall
have the effect of increasing  the Exercise  Price or  decreasing  the number of
shares by an amount in excess of the amount of the adjustment  initially made in
respect to the issuance,

                                      -10-

<PAGE>



sale or grant of such rights, options, warrants or conversion or exchange
rights.
                  G.2. Notice of  Adjustment.  Whenever the number of shares or
the Exercise  Price payable upon exercise of this option is adjusted,  as herein
provided,  the Company shall promptly mail by first class,  postage prepaid,  to
the Optionee,  notice of such  adjustment or adjustments  and a certificate of a
firm of independent public accountants selected by the Board of Directors of the
Company (who may be the regular  accountants  employed by the  Company)  setting
forth the number of shares and the Exercise  Price payable upon exercise of this
option  after such  adjustment,  setting  forth a brief  statement  of the facts
requiring  such  adjustment  and  setting  forth the  computation  by which such
adjustment was made.
                  G.3. No Adjustment for Dividends.  Except as provided in
paragraph G.1, no adjustment in respect of any dividends shall be made during
the term of this option or upon the exercise of this option.
                  G.4. Preservation   of   Purchase   Rights   Upon   Merger,
Consolidation,  etc. In case of any  consolidation of the Company with or merger
of the Company  into  another  corporation  or otherwise or in case of any sale,
transfer  or  lease  to  another  corporation  of all or  substantially  all the
property  of  the  Company,   the  Company  or  such   successor  or  purchasing
corporation,  as the case may be,  shall  execute with the Optionee an agreement
that the Optionee shall have the right  thereafter  upon payment of the Exercise
Price in effect immediately prior to such action to purchase upon

                                      -11-

<PAGE>



exercise of this option the kind and amount of shares and other  securities  and
property  which such  holder  would have owned or have been  entitled to receive
after the happening of such consolidation,  merger,  sale, transfer or lease had
this option been exercised immediately prior to such action,  provided that such
agreement  shall provide for  adjustments  thereafter,  which shall be as nearly
equivalent  as may  be  practicable  to the  adjustments  provided  for in  this
paragraph  G.  The  provisions  of this  paragraph  G shall  similarly  apply to
successive consolidations, mergers, sales, transfers or leases.
                  H. Registration Rights.  Optionee shall have the registration
rights with respect to this option as set forth in the Amended and Restated
Registration Rights Agreement dated as of June 30, 1995 and entered into by and
among the Company, the Optionee and the other executive officers of the Company
set forth therein.

                                          AMERICAN COMMUNICATIONS SERVICES, INC.

                                          By: /s/ RICHARD A. KOZAK
                                              Richard A. Kozak
                                              President and Chief Operating
                                                  Officer
     

Dated as of:  As of June 30, 1995



ATTEST:   /s/ RILEY M. MURPHY,
          Riley M. Murphy, Secretary

                                      -12-

<PAGE>



                                  PURCHASE FORM


                                                                 Date: _________



         TO:  Chief Financial Officer

         The  undersigned  hereby  irrevocably  elects to exercise  the attached
         Non-Qualified  Stock  Option  Certificate  to the  extent of options to
         purchase  _______  shares and hereby makes payment of $_____ in payment
         of the purchase price thereof.

                  INSTRUCTIONS FOR REGISTRATION OF SECURITIES

                  Name:____________________________________

                  Address:_________________________________
                          ---------------------------------



                                                           ---------------------

                                      -13-

<PAGE>



                     AMERICAN COMMUNICATIONS SERVICES, INC.
                     NON-QUALIFIED STOCK OPTION CERTIFICATE



                  A. A STOCK  OPTION for the  purchase  of a total of  1,349,899
shares of the common stock,  par value $0.01 (the "Common  Stock"),  of American
Communications  Services,  Inc. (the  "Company")  has been granted to Anthony J.
Pompliano (the "Optionee"),  pursuant to subparagraph 5(c)(i) of a Third Amended
and Restated Employment Agreement dated as of June 30, 1995 between the Optionee
and the Company (the "Employment  Agreement").  This option shall be governed by
the Employment Agreement and, except as otherwise specifically set forth herein,
the  provisions of the  Employment  Agreement  shall control in the event of any
conflict between the terms set forth herein and the provisions of the Employment
Agreement. Unless otherwise defined herein, all initially capitalized terms used
herein shall have the same meaning as set forth in the Employment Agreement.
                  B.       The exercise price of this option is $0.875 per
share (the "Exercise Price").
                  C. This option may not be  exercised if the issuance of shares
of Common Stock of the Company upon such exercise  would  constitute a violation
of any applicable  Federal or state  securities or other law or regulation.  The
Optionee,  as a condition to his exercise of this option, shall (i) represent to
the Company that the shares of Common Stock of the Company that he acquires upon
exercise of this option are being  acquired by him for investment and not with a
view to distribution or resale, and that

                                       -1-

<PAGE>



he will not sell or otherwise  transfer  such shares unless such shares are then
registered  under  a  currently  effective   registration  statement  under  the
Securities  Act of 1933,  as amended (the "Act"),  or counsel for the Company is
then of the opinion that such  registration is not required under the Act or any
other applicable law, regulation, or rule of any governmental agency and (ii) if
the shares of Common Stock  underlying this option are not registered  under the
Act, acknowledge that the certificate evidencing such shares may be stamped with
a restrictive legend and such shares will be "restricted  securities" as defined
in Rule 144 promulgated under the Act.
                  D. This option may not be transferred in any manner  otherwise
than by will or the  laws of  descent  and  distribution,  and may be  exercised
during the  lifetime of the  Optionee  only by the  Optionee.  The terms of this
option shall be binding upon the executors,  administrators,  heirs, successors,
and assigns of the Optionee.
                  E. The option shall be exercisable as follows:
                    (i)  The option shall not be exercisable, and to the
extent not exercised  prior to such date,  shall  terminate and be of no further
effect as of 5:00 p.m. New York City time on the respective expiration dates set
forth below.
                   (ii) The option  shall be  exercisable  as to 449,967  shares
commencing as of August 24, 1993 and shall expire on August 23, 2000.

                                       -2-

<PAGE>



                  (iii) The  option  shall be  exercisable  as to an  additional
449,966  shares  commencing  on January 1, 1995 and shall expire on December 31,
2000.
                   (iv) The  option  shall be  exercisable  as to the  remaining
449,966  shares  commencing on the sooner of (1) the time the Company's  seventh
(7th) competitive  access network becomes  operational,  or (ii) August 23, 1996
and shall expire on the day immediately preceding the fifth (5th) anniversary of
such vesting date.
                  F. Notwithstanding the foregoing,  the option shall not become
exercisable  as to a tranche of shares if Optionee is  terminated  For Cause (as
defined  in  paragraph  11 of the  Employment  Agreement)  prior to the date the
option becomes exercisable as to such shares as set forth in paragraph E hereof.
                  G. Subject to the provisions of paragraphs E and F, the rights
represented by this option may be exercised by the Optionee by delivery of:
                  a. the exercise form annexed hereto (the "Exercise Form") duly
executed and specifying the number of shares to be purchased,  to the Company at
the offices of the Company located at 131 National Business Parkway,  Suite 100,
Annapolis  Junction,  Maryland  20701  (or such  other  office  or agency of the
Company as it may  designate  by notice to the  Optionee  at the address of such
Optionee  appearing on the books of the Company) during normal business hours on
any day other than a Saturday, Sunday or day on

                                       -3-

<PAGE>



which national  banks are authorized to close in the City of New York,  State of
New York (a "Business Day").
                  b. Payment to the Company,  for the account of the Company, by
cash or by certified or bank cashier's  check or wire transfer,  of the Exercise
Price for the number of shares specified in the Exercise Form in lawful money of
the United States of America.
                  The  Company  agrees  that such  shares  shall be deemed to be
issued to the Optionee as the record owner of such shares as of the commencement
of  business on the date on which this option  shall have been  surrendered  and
payment made for the shares as aforesaid.  Certificates for the shares specified
in the  Exercise  Form  shall  be  delivered  to the  Optionee  as  promptly  as
practicable,  and in any event within ten (10) days  thereafter.  If this option
shall  have been  exercised  only in part,  the  Company  shall,  at the time of
delivery of the certificate or certificates delivered to the Optionee, deliver a
new option  evidencing the right to purchase the remaining shares issuable under
this option,  which new option shall in all other  respects be identical to this
option.  No  adjustment  shall be made on shares  issuable  on  exercise of this
option  for any cash  dividends  paid or  payable to holders of record of Common
Stock out of  consolidated  earnings or earned  surplus  prior to the date as of
which the Optionee shall be deemed to be the record-holder of such shares.
                  H.       Certain Adjustments.
                           --------------------

                                       -4-

<PAGE>



                  H.1.  The number of shares  purchasable  upon the  exercise of
this option and the Exercise Price shall be subject to adjustment as follows:
                  (a) In case the Company  shall (i) pay a dividend in shares of
Common Stock or make a  distribution  in shares of Common Stock,  (ii) subdivide
its outstanding shares of Common Stock (including, without limitation, by way of
stock splits and the like), (iii) combine its outstanding shares of Common Stock
into  a  smaller   number  of   shares  of  Common   Stock  or  (iv)   issue  by
reclassification  of its shares of Common Stock other  securities of the Company
(including  any such  reclassification  in connection  with a  consolidation  or
merger in which the Company is the surviving corporation),  the number of shares
purchasable  upon  exercise of this option  immediately  prior  thereto shall be
adjusted so that the  Optionee  shall be entitled to receive the kind and number
of shares or other  securities  of the Company which he would have owned or have
been  entitled to receive  after the  happening  of any of the events  described
above had this option been exercised  immediately prior to the happening of such
event or any record date with respect  thereto.  An adjustment  made pursuant to
this paragraph (a) shall become effective  immediately  after the effective date
of each such event  retroactive  to the record  date,  if any,  for such  event,
without amendment or modification required to this document.
                  (b) In  case  the  Company  shall  issue  rights,  options  or
warrants to all or  substantially  all holders of its outstanding  Common Stock,
without any charge to such holders, entitling them to

                                       -5-

<PAGE>



subscribe  for or purchase  shares of Common Stock at a price per share which is
lower at the record date mentioned  below than the then current market price per
share of Common Stock (as defined in paragraph (d) below),  the number of shares
thereafter  purchasable  upon the exercise of this option shall be determined by
multiplying the number of shares  theretofore  purchasable upon exercise of this
option by a fraction,  of which the  numerator  shall be the number of shares of
Common  Stock  outstanding  on the date of issuance of such  rights,  options or
warrants  plus the  number of  additional  shares of Common  Stock  offered  for
subscription or purchase,  and of which the  denominator  shall be the number of
shares of Common  Stock  outstanding  on the date of  issuance  of such  rights,
options or warrants plus the number of shares which the aggregate offering price
of the total number of shares of Common Stock so offered  would  purchase at the
current  market  price per  share of  Common  Stock at such  record  date.  Such
adjustment  shall be made whenever such rights,  options or warrants are issued,
and  shall  become  effective   immediately   after  the  record  date  for  the
determination  of  stockholders  entitled  to receive  such  rights,  options or
warrants.
                  (c)  In  case  the  Company   shall   distribute   to  all  or
substantially  all  holders  of its  shares of  Common  Stock  evidences  of its
indebtedness or assets (excluding cash dividends or distributions payable out of
consolidated earnings or earned surplus and dividends or distributions  referred
to in paragraph (a) above) or rights, options or warrants, or convertible or

                                       -6-

<PAGE>



exchangeable securities containing the right to subscribe for or purchase shares
of Common Stock  (excluding  those referred to in paragraph (b) above),  then in
each case the number of shares thereafter  purchasable upon the exercise of this
option  shall be  determined  by  multiplying  the number of shares  theretofore
purchasable  upon the  exercise  of this  option  by a  fraction,  of which  the
numerator  shall be the then current  market price per share of Common Stock (as
defined in paragraph (d) below) on the date of such  distribution,  and of which
the  denominator  shall be the then  current  market  price  per share of Common
Stock,  less the then fair  value (as  determined  in good faith by the Board of
Directors of the Company, or if requested by the Optionee,  by a leading firm of
investment  bankers  selected by the Optionee and  reasonably  acceptable to the
Company and whose  reasonable  fees and expenses shall be paid by the Company or
as otherwise agreed upon by the Company and the Optionee), of the portion of the
assets or evidences  of  indebtedness  so  distributed  or of such  subscription
rights, options or warrants, or of such convertible or exchangeable  securities,
applicable to one share of Common Stock.  Such adjustment shall be made whenever
any such  distribution  is  made,  and  shall  become  effective  on the date of
distribution   retroactive  to  the  record  date  for  the   determination   of
shareholders entitled to receive such distribution.
                  (d) For the purpose of  computation  under  paragraphs (b) and
(c) of this paragraph H.1, the current market price per share of Common Stock at
any date shall be:

                                       -7-

<PAGE>



                           (x) from and after 30 trading days after consummation
                  of a  Qualifying  Offering  (as such  term is  defined  in the
                  Company's  Certificate  of  Incorporation,  as  amended),  the
                  average of the daily  closing  prices  for the 30  consecutive
                  trading  days  immediately  preceding  such  computation.  The
                  closing  price for each day shall be the last  reported  sales
                  price  regular  way or, in case no such  reported  sale  takes
                  place on such day,  the  average of the  closing bid and asked
                  prices regular way for such day, in each case on the principal
                  national  securities  exchange  on which the  shares of Common
                  Stock are listed or admitted  to  trading,  or, if reported on
                  NASDAQ-National  Market System, the last reported sales price,
                  or, if not so listed or admitted to trading or  reported,  the
                  average  of the  closing  bid and asked  prices of the  Common
                  Stock in the over-the-counter  market as reported by NASDAQ or
                  any comparable system; and
                           (y) on or prior to the  expiration  of the 30 trading
                  day  period set forth in clause  (x)  above,  the fair  market
                  value per share of Common Stock  determined  by a leading firm
                  of investment  bankers selected by the Optionee and reasonably
                  acceptable  to the  Company  and  whose  reasonable  fees  and
                  expenses  shall be paid by the Company.
                           (e) No  adjustment in the number of shares
purchasable hereunder shall be required unless such adjustment  would require an
increase or decrease of at least one percent (1%) in the number of 

                                       -8-

<PAGE>



shares purchasable upon the exercise of this option; provided, however, that any
adjustments  which by reason of this  paragraph  (e) are not required to be made
shall be carried  forward and taken into account in any  subsequent  adjustment.
All calculations shall be made to the nearest one-thousandth of a share.
                  (f)  Whenever  the  number  of  shares  purchasable  upon  the
exercise of this option is adjusted,  as herein  provided,  the  Exercise  Price
payable upon the exercise of this option shall be adjusted by  multiplying  such
Exercise Price immediately prior to such adjustment by a fraction,  of which the
numerator  shall be the number of shares  purchasable  upon the exercise of this
option immediately prior to such adjustment,  and of which the denominator shall
be the number of shares purchasable immediately thereafter.
                  (g) No adjustment in the number of shares purchasable upon the
exercise of this option need be made under paragraphs (b) and (c) if the Company
issues  or  distributes  to the  Optionee  the  rights,  options,  warrants,  or
convertible or exchangeable  securities,  or evidences of indebtedness or assets
referred to in those  paragraphs  which the Optionee would have been entitled to
receive had the option been  exercised  prior to the  happening of such event or
the record date with  respect  thereto.  No  adjustment  in the number of shares
purchasable  upon the  exercise  of this  option  may be made for sale of shares
pursuant  to a Company  plan for  reinvestment  of  dividends  or  interest.  No
adjustment need be made for a change in the par value of the shares.

                                       -9-

<PAGE>



                  (h) The Company shall not, by amendment of its  Certificate of
Incorporation  or through  any  reorganization,  recapitalization,  transfer  of
assets, consolidation, merger, dissolution, issue or sale of securities, rights,
options or warrants or any other  voluntary  action,  avoid or seek to avoid the
observance or performance of any of the terms to be observed or performed  under
this paragraph H.1 by the Company, but will at all times in good faith assist in
carrying out all of the  provisions  of this  paragraph H.1 and in the taking of
such actions as may be necessary or  appropriate  in order to protect the rights
of the Optionee under this paragraph H.1 against impairment.
                  (i) For the purpose of this paragraph H.1, the term "shares of
Common  Stock" shall mean (i) the class of stock  designated as the common stock
of the Company at the date of this Certificate, or (ii) any other class of stock
resulting from successive changes or  reclassification of such shares consisting
solely of changes in par value,  or from par value to no par value. In the event
that at any time,  as a result of an  adjustment  made pursuant to paragraph (a)
above,  the Optionee  shall become  entitled to purchase any  securities  of the
Company other than shares of Common Stock,  thereafter  the number of such other
shares so  purchasable  upon exercise of this option,  and the Exercise Price of
such shares, shall be subject to adjustment from time to time in a manner and on
terms as nearly  equivalent as practicable to the provisions with respect to the
shares  contained in  paragraphs  (a) through  (h),  inclusive,  above,  and the
paragraphs H.2 through H.4,

                                      -10-

<PAGE>



inclusive,  with  respect to the  shares,  shall apply on like terms to any such
other securities.
                  (j) Upon the  expiration of any rights,  options,  warrants or
conversion or exchange privileges, if any thereof shall not have been exercised,
the Exercise  Price and the number of shares  shall,  upon such  expiration,  be
readjusted  and  shall  thereafter  be such as it  would  have  been had it been
originally  adjusted (or had the original  adjustment not been required,  as the
case may be),  as if (A) the only  shares  of Common  Stock so  issued  were the
shares of Common  Stock,  if any,  actually  issued or sold upon the exercise of
such rights,  options,  warrants or conversion  or exchange  rights and (B) such
shares of  Common  Stock,  if any,  were  issued  or sold for the  consideration
actually  received  by  the  Company  upon  such  exercise  plus  the  aggregate
consideration,  if any, actually received by the Company for the issuance,  sale
or grant of all such rights, options,  warrants or conversion or exchange rights
whether or not exercised;  provided,  further,  that no such readjustment  shall
have the effect of increasing  the Exercise  Price or  decreasing  the number of
shares by an amount in excess of the amount of the adjustment  initially made in
respect to the  issuance,  sale or grant of such  rights,  options,  warrants or
conversion or exchange rights.
                  H.2.     Notice of Adjustment.  Whenever the number of shares
or the Exercise Price payable upon exercise of this option is
adjusted, as herein provided, the Company shall promptly mail by
first class, postage prepaid, to the Optionee, notice of such

                                      -11-

<PAGE>



adjustment or  adjustments  and a certificate  of a firm of  independent  public
accountants  selected by the Board of  Directors  of the Company (who may be the
regular accountants  employed by the Company) setting forth the number of shares
and the  Exercise  Price  payable  upon  exercise  of  this  option  after  such
adjustment,  setting  forth  a  brief  statement  of the  facts  requiring  such
adjustment and setting forth the computation by which such adjustment was made.
                  H.3.     No Adjustment for Dividends.  Except as provided in
paragraph H.1, no adjustment in respect of any dividends shall be made during 
the term of this option or upon the exercise of this option.
                  H.4.    Preservation   of   Purchase   Rights   Upon   Merger,
Consolidation,  etc. In case of any  consolidation of the Company with or merger
of the Company  into  another  corporation  or otherwise or in case of any sale,
transfer  or  lease  to  another  corporation  of all or  substantially  all the
property  of  the  Company,   the  Company  or  such   successor  or  purchasing
corporation,  as the case may be,  shall  execute with the Optionee an agreement
that the Optionee shall have the right  thereafter  upon payment of the Exercise
Price in effect  immediately  prior to such action to purchase  upon exercise of
this  option  the kind and amount of shares and other  securities  and  property
which such holder  would have owned or have been  entitled to receive  after the
happening of such consolidation, merger, sale, transfer or lease had this option
been exercised  immediately  prior to such action,  provided that such agreement
shall provide for adjustments thereafter, which shall be as nearly

                                      -12-

<PAGE>



equivalent  as may  be  practicable  to the  adjustments  provided  for in  this
paragraph  H.  The  provisions  of this  paragraph  H shall  similarly  apply to
successive consolidations, mergers, sales, transfers or leases.
         I.  Registration Rights.  Optionee shall have the registration rights
with respect to this option as set forth in the Amended and Restated
Registration Rights Agreement dated as of June 30, 1995 and entered into by and
among the Company, the Optionee and the other executive officers of the Company
set forth therein.

                                          AMERICAN COMMUNICATIONS SERVICES, INC.


                                          By: /s/ RICHARD A. KOZAK
                                          Richard A. Kozak
                                          President and Chief Operating
                                               Officer


Dated as of:  As of June 30, 1995





ATTEST:    /s/ RILEY M. MURPHY,
           Riley M. Murphy, Secretary

                                      -13-

<PAGE>



                                  PURCHASE FORM


                                                                 Date: _________



         TO:  Chief Financial Officer

         The  undersigned  hereby  irrevocably  elects to exercise  the attached
         Non-Qualified  Stock  Option  Certificate  to the  extent of options to
         purchase  _______  shares and hereby makes payment of $_____ in payment
         of the purchase price thereof.

                  INSTRUCTIONS FOR REGISTRATION OF SECURITIES

                  Name:____________________________________

                  Address:_________________________________
                          ---------------------------------



                                                           ---------------------

                                      -14-

<PAGE>



                     AMERICAN COMMUNICATIONS SERVICES, INC.
                     NON-QUALIFIED STOCK OPTION CERTIFICATE


                  A. A STOCK  OPTION  for the  purchase  of a total  of  350,000
shares of the common stock,  par value $0.01 (the "Common  Stock"),  of American
Communications  Services,  Inc. (the  "Company")  has been granted to Anthony J.
Pompliano  (the  "Optionee"),  pursuant  to  subparagraph  5(c)(iii)  of a Third
Amended and Restated Employment  Agreement dated as of June 30, 1995 between the
Optionee  and the Company  (the  "Employment  Agreement").  This option shall be
governed by the Employment  Agreement and, except as otherwise  specifically set
forth herein,  the provisions of the Employment  Agreement  shall control in the
event of any conflict  between the terms set forth herein and the  provisions of
the  Employment  Agreement.  Unless  otherwise  defined  herein,  all  initially
capitalized  terms used herein  shall have the same  meaning as set forth in the
Employment Agreement.
                  B. The per share exercise price of this option is as set forth
below in paragraph E (the "Exercise Price"). 
                  C. This option may not be  exercised if the issuance of shares
of Common Stock of the Company upon such exercise  would  constitute a violation
of any applicable  Federal or state  securities or other law or regulation.  The
Optionee,  as a condition to his exercise of this option, shall (i) represent to
the Company that the shares of Common Stock of the Company that he acquires upon
exercise of this option are being  acquired by him for investment and not with a
view to distribution or resale, and that

                                       -1-

<PAGE>



he will not sell or otherwise  transfer  such shares unless such shares are then
registered  under  a  currently  effective   registration  statement  under  the
Securities  Act of 1933,  as amended (the "Act"),  or counsel for the Company is
then of the opinion that such  registration is not required under the Act or any
other applicable law, regulation, or rule of any governmental agency and (ii) if
the shares of Common Stock  underlying this option are not registered  under the
Act, acknowledge that the certificate evidencing such shares may be stamped with
a restrictive legend and such shares will be "restricted  securities" as defined
in Rule 144 promulgated under the Act.
                  D. This option may not be transferred in any manner  otherwise
than by will or the  laws of  descent  and  distribution,  and may be  exercised
during the  lifetime of the  Optionee  only by the  Optionee.  The terms of this
option shall be binding upon the executors,  administrators,  heirs, successors,
and assigns of the Optionee.
                  E. This  option  shall vest and become  exercisable  as to all
shares set forth below (each group of shares set forth below  referred to herein
as a  "tranche")  on August 24, 2001 if  Optionee  shall then be employed by the
Company;  provided,  however, that this option immediately shall vest and become
exercisable  provided  that  Optionee is then  employed by the Company (i) as to
each tranche of shares upon the occurrence of the events  described  below;  and
(ii) as to all of the tranches of shares upon a Change in Control,  whichever is
the first to occur. This option shall be exercisable

                                       -2-

<PAGE>



at the per share exercise price set forth below, and to the extent not exercised
shall  terminate  and be of no further  effect with  respect to each  tranche of
shares as of 5:00 p.m.  New York City time five (5) years from the date on which
the option first became exercisable as to such tranche of shares.


<TABLE>
<CAPTION>

Number of Shares         Event                                                            Per Share Exercise Price
- ----------------         -----                                                            ------------------------

<C>                      <C>                                                                        <C>   
100,000                  Prior to June 30, 1996 the Company executes an effective                   $ 2.25
                         agreement with a major strategic partner/investor as approved
                         by the Board of Directors.

125,000                  Such options shall vest upon the attainment of certain                     $ 2.80
                         performance goals determined by the compensation committee
                         of the board of directors relating to the Company's annual
                         plan approved by the board of directors for the fiscal year
                         ending June 30 ("Fiscal 1997"), 1997, such as the level of
                         appreciation of the publicly-traded price (as defined in
                         paragraph 5(h) of the Employment Agreement) of the Common
                         Stock during Fiscal 1997 and the consummation of strategic
                         business combinations, and other performance goals deemed
                         important by the compensation committee.  The performance
                         goals for Fiscal 1997 shall be determined by the compensation
                         committee no later than June 30, 1996.

125,000                  Such options shall vest upon the attainment of certain                     $ 2.80
                         performance goals determined by the compensation committee
                         of the board of directors relating to the Company's annual
                         plan approved by the board of directors for the fiscal year
                         ending June 30, 1998 (Fiscal 1998), such as the level of
                         appreciation of the publicly-traded price (as defined in
                         paragrpah 5(h) of the Employment Agreement) of the Common
                         Stock during Fiscal 1998 and the consummation of strategic
                         business combinations, and other performance goals deemed
                         important by the compensation committee.  The performance
                         goals for fiscal 1998 shall be determined by the compensation
                         committee no later than June 30, 1997. 
               

                                       -3-
</TABLE>

<PAGE>



                  F. Notwithstanding the foregoing, this option shall not become
exercisable  as to a tranche  of  shares  if  Optionee  voluntarily  leaves  the
Company's employ or if Optionee is terminated For Cause (as defined in paragraph
11 of the Employment Agreement) prior to the date the option becomes exercisable
as to such shares as set forth in paragraph E hereof.
                  G. Subject to the provisions of paragraphs E and F, the rights
represented by this option may be exercised by the Optionee by delivery of:
                  a. the exercise form annexed hereto (the "Exercise Form") duly
executed and specifying the number of shares to be purchased,  to the Company at
the offices of the Company located at 131 National Business Parkway,  Suite 100,
Annapolis  Junction,  Maryland  20701  (or such  other  office  or agency of the
Company as it may  designate  by notice to the  Optionee  at the address of such
Optionee  appearing on the books of the Company) during normal business hours on
any day  other  than a  Saturday,  Sunday  or day on which  national  banks  are
authorized  to  close in the City of New  York,  State of New York (a  "Business
Day").
                  b. Payment to the Company,  for the account of the Company, by
cash or by certified or bank cashier's  check or wire transfer,  of the Exercise
Price for the number of shares specified in the Exercise Form in lawful money of
the United States of America.
                  The  Company  agrees  that such  shares  shall be deemed to be
issued to the Optionee as the record owner of such shares as of the

                                       -4-

<PAGE>



commencement  of  business  on the date on which  this  option  shall  have been
surrendered and payment made for the shares as aforesaid.  Certificates  for the
shares  specified  in the  Exercise  Form shall be  delivered to the Optionee as
promptly as practicable,  and in any event within ten (10) days  thereafter.  If
this option shall have been exercised  only in part,  the Company shall,  at the
time of delivery of the certificate or  certificates  delivered to the Optionee,
deliver a new option  evidencing  the right to  purchase  the  remaining  shares
issuable  under this  option,  which new option  shall in all other  respects be
identical  to this option.  No  adjustment  shall be made on shares  issuable on
exercise  of this  option for any cash  dividends  paid or payable to holders of
record of Common Stock out of  consolidated  earnings or earned surplus prior to
the date as of which the  Optionee  shall be deemed to be the  record-holder  of
such shares.
                  H.       Certain Adjustments.
                           --------------------

                  H.1.  The number of shares  purchasable  upon the  exercise of
this option and the Exercise Price shall be subject to adjustment as follows:
                  (a) In case the Company  shall (i) pay a dividend in shares of
Common Stock or make a  distribution  in shares of Common Stock,  (ii) subdivide
its outstanding shares of Common Stock (including, without limitation, by way of
stock splits and the like), (iii) combine its outstanding shares of Common Stock
into  a  smaller   number  of   shares  of  Common   Stock  or  (iv)   issue  by
reclassification of its shares of Common Stock other securities of

                                       -5-

<PAGE>



the  Company  (including  any  such   reclassification   in  connection  with  a
consolidation or merger in which the Company is the surviving corporation),  the
number of shares  purchasable  upon  exercise of this option  immediately  prior
thereto shall be adjusted so that the Optionee  shall be entitled to receive the
kind and number of shares or other securities of the Company which he would have
owned or have been  entitled to receive after the happening of any of the events
described  above  had  this  option  been  exercised  immediately  prior  to the
happening of such event or any record date with respect  thereto.  An adjustment
made pursuant to this paragraph (a) shall become effective immediately after the
effective  date of each such event  retroactive  to the record date, if any, for
such event, without amendment or modification required to this document.
                  (b) In  case  the  Company  shall  issue  rights,  options  or
warrants to all or  substantially  all holders of its outstanding  Common Stock,
without any charge to such holders,  entitling them to subscribe for or purchase
shares of Common  Stock at a price per share  which is lower at the record  date
mentioned below than the then current market price per share of Common Stock (as
defined in paragraph  (d) below),  the number of shares  thereafter  purchasable
upon the exercise of this option shall be determined by  multiplying  the number
of shares theretofore purchasable upon exercise of this option by a fraction, of
which the numerator shall be the number of shares of Common Stock outstanding on
the date of issuance  of such  rights,  options or  warrants  plus the number of
additional  shares of Common Stock offered for subscription or purchase,  and of
which the

                                       -6-

<PAGE>



denominator  shall be the number of shares of Common  Stock  outstanding  on the
date of issuance of such rights,  options or warrants  plus the number of shares
which the aggregate offering price of the total number of shares of Common Stock
so offered would  purchase at the current market price per share of Common Stock
at such record date. Such adjustment shall be made whenever such rights, options
or warrants are issued, and shall become effective  immediately after the record
date for the  determination  of  stockholders  entitled to receive  such rights,
options or warrants.
                  (c)  In  case  the  Company   shall   distribute   to  all  or
substantially  all  holders  of its  shares of  Common  Stock  evidences  of its
indebtedness or assets (excluding cash dividends or distributions payable out of
consolidated earnings or earned surplus and dividends or distributions  referred
to in paragraph (a) above) or rights,  options or warrants,  or  convertible  or
exchangeable securities containing the right to subscribe for or purchase shares
of Common Stock  (excluding  those referred to in paragraph (b) above),  then in
each case the number of shares thereafter  purchasable upon the exercise of this
option  shall be  determined  by  multiplying  the number of shares  theretofore
purchasable  upon the  exercise  of this  option  by a  fraction,  of which  the
numerator  shall be the then current  market price per share of Common Stock (as
defined in paragraph (d) below) on the date of such  distribution,  and of which
the  denominator  shall be the then  current  market  price  per share of Common
Stock, less the

                                       -7-

<PAGE>



then fair value (as  determined  in good faith by the Board of  Directors of the
Company,  or if  requested  by the  Optionee,  by a leading  firm of  investment
bankers  selected by the Optionee and  reasonably  acceptable to the Company and
whose  reasonable fees and expenses shall be paid by the Company or as otherwise
agreed upon by the Company  and the  Optionee),  of the portion of the assets or
evidences of indebtedness so distributed or of such subscription rights, options
or warrants,  or of such convertible or exchangeable  securities,  applicable to
one share of Common  Stock.  Such  adjustment  shall be made  whenever  any such
distribution  is made,  and shall become  effective on the date of  distribution
retroactive to the record date for the determination of shareholders entitled to
receive such distribution.
                  (d) For the purpose of  computation  under  paragraphs (b) and
(c) of this paragraph H.1, the current market price per share of Common Stock at
any date shall be:
                           (x) from and after 30 trading days after consummation
                  of a  Qualifying  Offering  (as such  term is  defined  in the
                  Company's  Certificate  of  Incorporation,  as  amended),  the
                  average of the daily  closing  prices  for the 30  consecutive
                  trading  days  immediately  preceding  such  computation.  The
                  closing  price for each day shall be the last  reported  sales
                  price  regular  way or, in case no such  reported  sale  takes
                  place on such day,  the  average of the  closing bid and asked
                  prices regular way for such day, in each case on the principal
                  national securities exchange

                                       -8-

<PAGE>



                  on which the shares of Common  Stock are listed or admitted to
                  trading, or, if reported on NASDAQ-National Market System, the
                  last reported sales price, or, if not so listed or admitted to
                  trading or reported,  the average of the closing bid and asked
                  prices of the Common Stock in the  over-the-counter  market as
                  reported by NASDAQ or any comparable system; and
                           (y) on or prior to the  expiration  of the 30 trading
                  day  period set forth in clause  (x)  above,  the fair  market
                  value per share of Common Stock  determined  by a leading firm
                  of investment  bankers selected by the Optionee and reasonably
                  acceptable  to the  Company  and  whose  reasonable  fees  and
                  expenses  shall be paid by the Company.  (e) No  adjustment in
                  the number of shares purchasable
hereunder shall be required unless such adjustment  would require an increase or
decrease of at least one percent (1%) in the number of shares  purchasable  upon
the exercise of this option;  provided,  however,  that any adjustments which by
reason  of this  paragraph  (e) are not  required  to be made  shall be  carried
forward and taken into account in any subsequent  adjustment.  All  calculations
shall be made to the nearest one-thousandth of a share.
                  (f)  Whenever  the  number  of  shares  purchasable  upon  the
exercise of this option is adjusted,  as herein  provided,  the  Exercise  Price
payable upon the exercise of this option shall be adjusted by  multiplying  such
Exercise Price immediately prior to such adjustment by a fraction,  of which the
numerator shall be the

                                       -9-

<PAGE>



number of shares  purchasable upon the exercise of this option immediately prior
to such adjustment,  and of which the denominator  shall be the number of shares
purchasable immediately thereafter.
                  (g) No adjustment in the number of shares purchasable upon the
exercise of this option need be made under paragraphs (b) and (c) if the Company
issues  or  distributes  to the  Optionee  the  rights,  options,  warrants,  or
convertible or exchangeable  securities,  or evidences of indebtedness or assets
referred to in those  paragraphs  which the Optionee would have been entitled to
receive had the option been  exercised  prior to the  happening of such event or
the record date with  respect  thereto.  No  adjustment  in the number of shares
purchasable  upon the  exercise  of this  option  may be made for sale of shares
pursuant  to a Company  plan for  reinvestment  of  dividends  or  interest.  No
adjustment need be made for a change in the par value of the shares.
                  (h) The Company shall not, by amendment of its  Certificate of
Incorporation  or through  any  reorganization,  recapitalization,  transfer  of
assets, consolidation, merger, dissolution, issue or sale of securities, rights,
options or warrants or any other  voluntary  action,  avoid or seek to avoid the
observance or performance of any of the terms to be observed or performed  under
this paragraph H.1 by the Company, but will at all times in good faith assist in
carrying out all of the  provisions  of this  paragraph H.1 and in the taking of
such actions as may be necessary or  appropriate  in order to protect the rights
of the Optionee under this paragraph H.1 against impairment.

                                      -10-

<PAGE>



                  (i) For the purpose of this paragraph H.1, the term "shares of
Common  Stock" shall mean (i) the class of stock  designated as the common stock
of the Company at the date of this Certificate, or (ii) any other class of stock
resulting from successive changes or  reclassification of such shares consisting
solely of changes in par value,  or from par value to no par value. In the event
that at any time,  as a result of an  adjustment  made pursuant to paragraph (a)
above,  the Optionee  shall become  entitled to purchase any  securities  of the
Company other than shares of Common Stock,  thereafter  the number of such other
shares so  purchasable  upon exercise of this option,  and the Exercise Price of
such shares, shall be subject to adjustment from time to time in a manner and on
terms as nearly  equivalent as practicable to the provisions with respect to the
shares  contained in  paragraphs  (a) through  (h),  inclusive,  above,  and the
paragraphs H.2 through H.4, inclusive,  with respect to the shares,  shall apply
on like terms to any such other securities.
                  (j) Upon the  expiration of any rights,  options,  warrants or
conversion or exchange privileges, if any thereof shall not have been exercised,
the Exercise  Price and the number of shares  shall,  upon such  expiration,  be
readjusted  and  shall  thereafter  be such as it  would  have  been had it been
originally  adjusted (or had the original  adjustment not been required,  as the
case may be),  as if (A) the only  shares  of Common  Stock so  issued  were the
shares of Common  Stock,  if any,  actually  issued or sold upon the exercise of
such rights, options, warrants or conversion or exchange rights and

                                      -11-

<PAGE>



(B)  such  shares  of  Common  Stock,  if  any,  were  issued  or  sold  for the
consideration  actually  received by the  Company  upon such  exercise  plus the
aggregate  consideration,  if any,  actually  received  by the  Company  for the
issuance, sale or grant of all such rights,  options,  warrants or conversion or
exchange  rights  whether  or not  exercised;  provided,  further,  that no such
readjustment  shall  have  the  effect  of  increasing  the  Exercise  Price  or
decreasing  the  number of  shares  by an amount in excess of the  amount of the
adjustment  initially  made in  respect to the  issuance,  sale or grant of such
rights, options, warrants or conversion or exchange rights.

                  H.2.  Notice of Adjustment.  Whenever the number of shares or
the Exercise  Price payable upon exercise of this option is adjusted,  as herein
provided,  the Company shall promptly mail by first class,  postage prepaid,  to
the Optionee,  notice of such  adjustment or adjustments  and a certificate of a
firm of independent public accountants selected by the Board of Directors of the
Company (who may be the regular  accountants  employed by the  Company)  setting
forth the number of shares and the Exercise  Price payable upon exercise of this
option  after such  adjustment,  setting  forth a brief  statement  of the facts
requiring  such  adjustment  and  setting  forth the  computation  by which such
adjustment was made.
                  H.3.  No Adjustment for Dividends.  Except as provided in
paragraph H.1, no adjustment in respect of any dividends shall be
made during the term of this option or upon the exercise of this
option.

                                      -12-

<PAGE>



                  H.4.  Preservation   of   Purchase   Rights   Upon   Merger,
Consolidation,  etc. In case of any  consolidation of the Company with or merger
of the Company  into  another  corporation  or otherwise or in case of any sale,
transfer  or  lease  to  another  corporation  of all or  substantially  all the
property  of  the  Company,   the  Company  or  such   successor  or  purchasing
corporation,  as the case may be,  shall  execute with the Optionee an agreement
that the Optionee shall have the right  thereafter  upon payment of the Exercise
Price in effect  immediately  prior to such action to purchase  upon exercise of
this  option  the kind and amount of shares and other  securities  and  property
which such holder  would have owned or have been  entitled to receive  after the
happening of such consolidation, merger, sale, transfer or lease had this option
been exercised  immediately  prior to such action,  provided that such agreement
shall provide for adjustments thereafter, which shall be as nearly equivalent as
may be  practicable  to the  adjustments  provided for in this  paragraph H. The
provisions   of  this   paragraph  H  shall   similarly   apply  to   successive
consolidations, mergers, sales, transfers or leases.

                                      -13-

<PAGE>



         I.  Registration Rights.  Optionee shall have the registration rights
with respect to this option as set forth in the Amended and Restated
Registration Rights Agreement dated as of June 30, 1995 and entered into by and
among the Company, the Optionee and the other executive officers of the Company
set forth therein.


                                          AMERICAN COMMUNICATIONS SERVICES, INC.


                                          By: /s/ RICHARD A. KOZAK
                                          Richard A. Kozak
                                          President and Chief Operating
                                               Officer


Dated as of:  As of June 30, 1995


ATTEST:   /s/ RILEY M. MURPHY,
          Riley M. Murphy, Secretary

                                      -14-

<PAGE>



                                  PURCHASE FORM


                                                                 Date: _________



         TO:  Chief Financial Officer

         The  undersigned  hereby  irrevocably  elects to exercise  the attached
         Non-Qualified  Stock  Option  Certificate  to the  extent of options to
         purchase  _______  shares and hereby makes payment of $_____ in payment
         of the purchase price thereof.

                  INSTRUCTIONS FOR REGISTRATION OF SECURITIES

                  Name:____________________________________

                  Address:_________________________________
                          ---------------------------------



                                                           ---------------------

                                      -15-


















February 4, 1996




Mr. Harry J. D'Andrea
5904 Maiden Lane
Bethesda, MD 20817

Dear Harry:

                  I  am  pleased   to  offer  you   employment   with   American
Communications  Services, Inc. (ACSI) in the position of Chief Financial Officer
for the Company. The position will report to me at ACSI's headquarters office in
Annapolis  Junction,  MD and  based  on  your  acceptance  of this  offer,  your
employment  will  take  effect on  Monday,  February  5. As the Chief  Financial
Officer,  you will be responsible for maintaining the Company's  financial books
and records and  fulfilling  all financial  reporting  requirements  to lenders,
shareholders, regulatory and government agencies, and ACSI senior management, as
well as ensuring the integrity of the Company's financial systems and controls.

                  Your  compensation  will  consist of a base salary of $150,000
per year paid in accordance with the Company's  standard  payroll  practices and
subject to the usual and customary  federal and state tax  withholding and other
employment taxes as required by law. You will receive an annual salary review in
accordance with the Company's practice for senior executives and approval by the
Board of  Directors'  Compensation  Committee.  You will also be eligible  for a
performance  bonus of $50,000 less required  deductions during the first year of
employment  which  will  be  paid  upon  achievement  of  specific   performance
objectives  that will be established  in  conjunction  with KPMG Peat Marwick by
February 15, 1996.

                  In addition to the foregoing compensation,  you will be issued
options to purchase  up to 80,000  shares of the  Company's  common  stock.  The
options  will  vest on an  "earn-out"  basis at the rate of 20,000  shares  upon
completion of your first year of employment with Company,  and 20,000 shares per
year upon completion


<PAGE>



of your  second,  third and fourth  year of  employment  with the  Company.  The
exercise  price  of the  Stock  Options  will  be  $4.25 a share  and  shall  be
exercisable for five years after the date on which the options vest. The Company
will add these options to its S-8 Registration Statement. During your first year
of  employment,  the Company will award you options for up to 20,000  additional
shares  of stock  which  will  vest  upon  completion  of  specific  performance
objectives  that will be established  in  conjunction  with KPMG Peat Marwick by
February 15, 1996.  The exercise  price for these  options will be $4.25 a share
and shall be  exercisable  for a period of five years after the date of vesting.
The Company will also add these shares to its S-8 Registration Statement.

                  You will be entitled to  participate  in the Company's  fringe
benefit  plans,  including but not limited to the  Company's  medical and dental
insurance,  life insurance,  stock option plan, vacation and other benefit plans
which may be adopted or amended by the  Company  from time to time  during  your
employment with the Company.

                  As an executive  officer of the Company,  your performance and
evaluation  is subject  to review by the Board of  Directors'  Compensation  and
Audit Committees based on  recommendations  by the President and Chief Executive
Officer. Notwithstanding, the Company reserves the right to terminate employment
at any time in its sole discretion without cause. However, if your employment is
terminated  without cause, you (or your estate) will be entitled to exercise the
80,000  stock  options  granted  to you in  accordance  with the  terms of these
options.  In  addition,  in the  event of  termination  without  cause  prior to
completion of your first year of employment,  you will receive your then current
base monthly salary and health and medical coverage at the Company's expense for
three months from the date of such  termination,  or if subsequent to completion
of your  first year of  employment,  you will  receive  your then  current  base
monthly salary and health and medical benefits coverage at the Company's expense
for six months from the date of such termination.

                  Finally,  as  an  executive  officer  of  the  Company,   your
employment   will  be  subject  to  the  attached   Confidentiality   Agreement,
Non-Competition  and  Non-Solicitation  Agreement,  and  Directors' and Officers
Questionnaire which you are requested to
review and complete.

                  Harry,  we at ACSI believe that this offer of employment  with
our Company is an exciting, challenging and rewarding opportunity for you. It is
an opportunity where you can bring your talent and experience to bear in helping
the Company meet (and hopefully exceed) its business  objectives.  It is also an
opportunity   for   you  to   establish   a   track   record   in  the   dynamic
telecommunications industry and with Wall Street as a member of a

                                       -2-

<PAGE>



successful high growth company.  We hope you will accept our offer
and join us in building the future of telecommunications.

Sincerely,


/s/ RICHARD A. KOZAK
Richard A. Kozak

Attachments

cc:      Anthony J. Pompliano, Sr.



I accept this offer of employment:



/s/ HARRY J. D'ANDREA                                                     2/7/96
Harry J. D'Andrea                                                          Date

                                       -3-





                                MASTER AMENDMENT
                                       TO
                          LOAN AND SECURITY AGREEMENTS


         THIS  MASTER  AMENDMENT  TO  LOAN  AND  SECURITY   AGREEMENTS  ("Master
Amendment") is entered into as of November 30, 1995 among American Communication
Services of Louisville,  Inc., a Delaware corporation  ("Louisville"),  American
Communication  Services  of Fort  Worth,  Inc.,  a Delaware  corporation  ("Fort
Worth"),   American  Communication  Services  of  Columbia,   Inc.,  a  Delaware
corporation ("Columbia"), American Communication Services of Greenville, Inc., a
Delaware corporation  ("Greenville"),  and American Communication Services of El
Paso, Inc. ("E1 Paso"), and collectively  with Louisville,  Fort Worth, Columbia
and Greenville,  the "ACSI Borrower  Subsidiaries")  and AT&T Credit Corporation
("Lender").

                                   WITNESSETH:

         WHEREAS,  each of the ACSI Borrower Subsidiaries is party to a Loan and
Security Agreement with the Lender; specifically described as follows:

         (i)  Louisville  and the Lender are  parties to that  certain  Loan and
Security  Agreement  dated as of October 17,  1994,  as amended by that  certain
Amendment  No. 1 dated as of June 26, 1995 (as the same may from time to time be
further  amended,  modified,  supplemented  or restated,  the  "Louisville  Loan
Agreement");

         (ii) Fort  Worth and the Lender are  parties to that  certain  Loan and
Security  Agreement dated as of February 28, 1995, (as the same may from time to
time be further  amended,  modified,  supplemented or restated,  the "Fort Worth
Loan Agreement");

         (iii)  Columbia,  Greenville and the Lender are parties to that certain
Loan and Security Agreement dated as of June 30, 1995 (as the same may from time
to time be further amended,  modified,  supplemented or restated,  the "Columbia
and Greenville Loan Agreement"); and

         (iv) El Paso  and the  Lender  are  parties  to that  certain  Loan and
Security  Agreement  dated as of September 8, 1995 (as the same may from time to
time be further amended,  modified,  supplemented or restated, the "El Paso Loan
Agreement",  and collectively with the Louisville Loan Agreement, the Fort Worth
Loan  Agreement  and the  Columbia  and  Greenville  Loan  Agreement,  the "Loan
Agreements");

         WHEREAS, Greenville and Columbia have requested the Lender to amend the
Columbia and  Greenville  Loan  Agreement to expand the definition of "Permitted
Liens";


                                       -1-

<PAGE>



         WHEREAS,  the Lender has requested that the ACSI Borrower  Subsidiaries
enter into  amendments to the Loan  Agreements on the terms and  conditions  set
forth herein and the ACSI Borrower Subsidiaries have agreed to do so; and

         NOW,  THEREFORE,  in consideration of the premises set forth above, the
terms  and   conditions   contained   herein,   and  other  good  and   valuable
consideration, the receipt and sufficiency of which are hereby acknowledged, the
ACSI  Borrower  Subsidiaries,  and the  Lender  have  agreed  to amend  the Loan
Agreements as set forth below.  Capitalized  terms used in this Master Amendment
which are not otherwise defined herein, shall have the meanings given such terms
in the  respective  Loan  Agreement  for  each  ACSI  Borrower  Subsidiaries  as
applicable.

         1.  Amendments to Loan Agreements. Effective as of the date hereof and
subject to the satisfaction of the conditions precedent set forth in Section 2
below, on and after the date hereof, the parties hereto agree as follows:

                  1.1 The  definition  of "Cash Flow in Section  1.01 of each of
the Loan  Agreements  except the El Paso Loan  Agreement  is hereby  deleted and
replaced as follows:

                           (a) In the Louisville Loan Agreement and the Fort
Worth Loan Agreement, with the following definition:

                  "Cash Flow" shall mean for any period of the Borrower, (i) Net
Income,  plus (ii) non-cash  charges  deducted in the calculation of Net Income,
plus (iii) Headquarters  Expenses,  plus (iv) actual payments of interest on the
Loans and actual amounts paid with respect to other Debt for such period.

                           (b) In the Columbia and Greenville Loan Agreement,
with the following definition:

                  "Cash Flow"  shall mean for any period of any Person,  (i) Net
Income,  plus (ii) non-cash  charges  deducted in the calculation of Net Income,
plus (iii) Headquarters  Expenses,  plus (iv) actual payments of interest on the
Loans and actual amounts paid with respect to other Debt for such period.

                  1.2 The definition of "Fixed  Charges" in Section 1.01 of each
of the Loan  Agreements  except the El Paso Loan Agreement is hereby deleted and
replaced with the following:

                           (a) In the Louisville Loan Agreement, the Fort Worth
Loan Agreement, and the El Paso Loan Agreement with the following definition:

                           "Fixed Charges" shall mean, with respect to any
fiscal period of Borrower, the sum of the following amounts

                                       -2-

<PAGE>



calculated  at the end of such  period:  (i)  scheduled  payments of  principal,
interest,  rent and other amounts payable with respect to Debt (other than those
required to be made with  respect to the Loans)  during such  period,  plus (ii)
fees payable by the Borrower to the Lender (excluding fees and expenses accrued,
incurred  or paid on or  prior  to the  Effective  Date)  plus  (iii)  scheduled
quarterly principal and interest payments required to be made during such period
with  respect to the Loans and solely  with  respect  to  calculating  the Fixed
Charge  Coverage  Ratio in clause  (v) of Section  6.04,  the  accrued  Deferral
Amounts and accrued Deferrable Interest Arrearages.

                           (b) In the Columbia and Greenville Loan Agreement,
with the following definition:

                           "Fixed Charges" shall mean, with respect to any
fiscal period of either Borrower, the sum of the following amounts calculated at
the end of such period: (i) scheduled payments of principal,  interest, rent and
other amounts payable with respect to Debt (other than those required to be made
with  respect to the Loans)  during such  period,  plus (ii) fees payable by the
Borrower to the Lender (excluding fees and expenses accrued, incurred or paid on
or prior to the Effective  Date) plus (iii)  scheduled  quarterly  principal and
interest  payments  required to be made  during such period with  respect to the
Loans and solely with respect to calculating  the Fixed Charge Coverage Ratio in
clause (v) of Section 6.04, the accrued Deferral Amounts and accrued  Deferrable
Interest Arrearages.

                  1.3 Section 1.01 of each of the Loan Agreements  except the El
Paso Loan  Agreement is amended by deleting the  definition  of "Fixed Rate" and
Variable  Rate" in their  entirety and replacing  with the following  respective
definitions:

                           "Fixed Rate" shall mean, with respect to (i) each
Loan which originally bore interest at a fixed rate, a rate equal to the average
of the "ask yields" of United States  Treasury Notes trading  closest to par and
maturing in the month seven years from the month of the making of such Loan,  as
quoted in the  Eastern  Edition of The Wall  Street  Journal  (or any  successor
publication)  on a date two (2) Business Days prior to the date of the making of
such Loan (or if there is no United States Treasury Note maturing in such month,
an  interpolation  by Lender  (evidence of which is provided to the Borrower) of
the "ask yields" of United  States  Treasury  Notes  trading  closest to par and
maturing  in the  month  closest  but prior to,  and in the  month  closest  but
subsequent  to, the month seven years from the month of the making of such Loan,
as quoted in the Eastern  Edition of The Wall Street  Journal (or any  successor
publication)  on the date two (2) Business  Days prior to the date of the making
of such Loan), plus in either case, the Applicable Margin and (ii) each Variable
Rate Loan  converted to a Fixed Rate Loan pursuant to the  provisions of Section
2.05, a rate

                                       -3-

<PAGE>



equal to the average of the "ask yields" of United States Treasury Notes trading
closest to par and maturing in the month seven years from the month in which the
Conversion  Date  occurs,  as quoted in the  Eastern  Edition of The Wall Street
Journal (or any successor  publication)  on the date two (2) Business Days prior
to the Conversion  Date (or if there is no United States  Treasury Note maturing
in such month, an interpolation of the "ask yields" by Lender (evidence of which
is provided to the Borrower) of United  States  Treasury  Notes  maturing in the
month  closest but prior to, and in the month closest but  subsequent  to, seven
years  after the month in which the  Conversion  Date  occurs,  as quoted in the
Eastern Edition of The Wall Street Journal (or any successor publication) on the
date two (2) Business Days prior to the Conversion  Date),  plus in either case,
the Applicable Margin.

                  "Variable  Rate"  shall  mean with  respect to each Loan which
bears interest at a variable rate, the average offering rate by commercial paper
dealers for three month commercial paper of major  corporations as quoted in the
Eastern Edition of The Wall Street Journal (or its successor publication) (i) in
effect two (2)  Business  Days prior to the date of the making of such Loan with
respect to the period  commencing on such date and ending on the last day of the
calendar quarter in which such date occurs,  and (ii) in effect two (2) Business
Days prior to the first day of each subsequent  calendar quarter with respect to
the  period  commencing  on such  first  day and  ending on the last day of such
subsequent calendar quarter, plus, in each case, the Applicable Margin.

                  1.4 Section 1.01 of each of the Loan Agreements  except the El
Paso Loan  Agreement is hereby  amended to delete the  definitions of the "Fixed
Rate Note" and the "Variable Rate Note".

                  1.5 Section 1.01 is hereby amended in all of the Loan
Agreements to add the following definition (to be inserted
alphabetically):

                           "Default" shall mean an event which with the giving
of notice or passage of time or both would constitute an Event of
Default.

                  1.6 Section 6.01 of the Columbia and Greenville Loan Agreement
is amended to delete the word "and" at the end of clause  (iv)  thereof,  to add
the word "and" at the end of clause (v) thereof and to add the following  clause
(vi) thereto:

                           (vi) the rights of MPX Systems, Inc., a South
Carolina corporation ("MPX"), pursuant to that certain License Agreement entered
into on July 26, 1995 between MPX and columbia.

         2. Conditions of Effectiveness of this Master Amendment.  This Master
Amendment shall become effective and be deemed

                                       -4-

<PAGE>



effective on the date first above  written  subject to the  Lender's  receipt of
each of the following:

                           (i)  five (5) originals of this Master Amendment,
duly executed by the ACSI Borrower Subsidiaries and the Lender; and

                           (ii) five (5) originals of the Master Reaffirmation
of Parent Pledge and Support Agreements attached as Exhibit A
hereto.

         3. Further Assurances. The ACSI Borrower Subsidiaries hereby agree from
time to time,  as and when  requested  by the Lender,  to execute and deliver or
cause  to be  executed  and  delivered,  all  such  documents,  instruments  and
agreements  and to take or cause to be taken such further or other action as the
Lender  may deem  necessary  or  desirable  in order to carry out the intent and
purposes  of this  Master  Amendment,  the Loan  Agreements  or the  other  Loan
Documents.

         4. Representations  and Warranties of the ACSI Borrower  Subsidiaries.
The ACSI  Borrower  Subsidiaries  hereby  represent and warrant that this Master
Amendment and their  respective  Loan  Agreement as  previously  executed and as
amended  hereby,   constitute  legal,  valid  and  binding  obligations  of  the
respective ACSI Borrower  Subsidiary and are enforceable  against the respective
ACSI Borrower Subsidiary in accordance with their terms.

         5. Reference to the Effect on the Agreement.

                  (a) Upon the  effectiveness of Section 1 hereof,  on and after
the date  hereof,  each  reference in the Loan  Agreement  to "this  agreement,"
"hereunder,"  "hereof,"  "herein"  or words of like  import  shall mean and be a
reference to the respective Loan Agreement as amended hereby.

                  (b) Except as specifically  set forth above,  each of the Loan
Agreements, and all other documents,  instruments and agreements executed and/or
delivered in connection  therewith,  shall remain in full force and effect,  and
are hereby ratified and confirmed.

                  (c) The execution,  delivery and  effectiveness of this Master
Amendment shall not, except as expressly provided herein, operate as a waiver of
any  right,  power or  remedy  of the  Lender,  nor  constitute  a waiver of any
provision  of the Loan  Agreements,  or any  other  documents,  instruments  and
agreements executed and/or delivered in connection therewith.

         6. Headings. Section headings in this Master Amendment are included
herein for convenience of reference only and shall not constitute a part of this
Master Amendment for any other purpose.


                                       -5-

<PAGE>



         7. Counterparts;  Facsimile  Signatures.  This Master Amendment may be
executed by one or more of the parties to the Master  Amendment on any number of
separate  counterparts  and all of said  counterparts  taken  together  shall be
deemed to constitute  one and the same  instrument.  Each of the parties  hereto
agrees that a signature transmitted by facsimile transmission shall be effective
to bind the party so transmitting its signature.

         8. Entire  Agreement.  This Master  Amendment,  taken together with the
respective  Loan  Agreements  and all of the other  respective  Loan  Documents,
embodies  the entire  agreement  and  understanding  of the  parties  hereto and
supersedes all prior agreements and  understandings,  written and oral, relating
to the subject matter hereof.

         9. Applicable  Law;  Severability.  This  Master  Amendment  shall  be
governed by, and construed in accordance  with, the internal laws (as opposed to
the  conflict  of laws  provisions)  and  decisions  of the State of New Jersey.
Whenever possible,  each provision of this Master Amendment shall be interpreted
in such manner as to be effective  and valid under  applicable  law, but, if any
provision of this Master  Amendment  shall be held to be  prohibited  or invalid
under  applicable law, such provision shall be ineffective only to the extent of
such  prohibition  or  invalidity,  without  invalidating  the remainder of such
provision or the remaining provisions of this Master Amendment.

         IN WITNESS WHEREOF,  this Master Amendment has been duly executed as of
the date set forth above.

                                       AMERICAN COMMUNICATION SERVICES
                                         OF LOUISVILLE, INC.

                                       /s/ RICHARD A. KOZAK
                                       Name: Richard A. Kozak
                                       Title: President & Chief
                                             Executive Officer

                                       AMERICAN COMMUNICATION SERVICES
                                         OF FORT WORTH, INC.

                                       /s/ RICHARD A. KOZAK
                                       Name: Richard A. Kozak
                                       Title: President & Chief
                                             Executive Officer

                                       -6-

<PAGE>



                                        AMERICAN COMMUNICATION SERVICES
                                          OF COLUMBIA, INC.

                                        /s/ RICHARD A. KOZAK
                                        Name: Richard A. Kozak
                                        Title: President & Chief
                                               Executive Officer

                                        AMERICAN COMMUNICATION SERVICES
                                          OF GREENVILLE, INC.

                                        /s/ RICHARD A. KOZAK
                                        Name: Richard A. Kozak
                                        Title: President & Chief
                                             Executive Officer

                                        AMERICAN COMMUNICATION SERVICES
                                          OF LOUISVILLE, INC.

                                        /s/ RICHARD A. KOZAK
                                        Name: Richard A. Kozak
                                        Title: President & Chief
                                              Executive Officer

                                        AMERICAN COMMUNICATION SERVICES
                                           OF EL PASO, INC.

                                        /s/ RICHARD A. KOZAK
                                        Name: Richard A. Kozak
                                        Title: President & Chief
                                              Executive Officer

                                        AT&T CREDIT CORPORATION

                                        By:----------------------------
                                        Name:  Edward F. Gromek
                                        Title:  Vice President


                                       -7-

<PAGE>



     IN WITNESS WHEREOF,  this Master Amendment has been duly executed as of the
date set forth above.

                                        AMERICAN COMMUNICATION SERVICES
                                           OF LOUISVILLE, INC.

                                        By:----------------------------
                                        Name:-------------------------- 
                                        Title:-------------------------

                                        AMERICAN COMMUNICATION SERVICES
                                           OF FORT WORTH, INC.

                                        By:----------------------------
                                        Name:--------------------------
                                        Title:-------------------------

                                        AMERICAN COMMUNICATION SERVICES
                                           OF COLUMBIA, INC.

                                        By:----------------------------
                                        Name:--------------------------
                                        Title:-------------------------

                                        AMERICAN COMMUNICATION SERVICES
                                          OF GREENVILLE, INC.

                                        By:----------------------------
                                        Name:--------------------------
                                        Title:-------------------------


                                        AMERICAN COMMUNICATION SERVICES
                                          OF EL PASO, INC.

                                        By:----------------------------
                                        Name:--------------------------
                                        Title:-------------------------

                                        AT&T CREDIT CORPORATION

                                        /s/ EDWARD F. GROMEK
                                        Name: Edward F. Gromek
                                        Title: Vice President

                                       -8-

<PAGE>



                                                               EXHIBIT A

                             MASTER REAFFIRMATION OF
                      PARENT PLEDGE AND SUPPORT AGREEMENTS

         This MASTER REAFFIRMATION OF PARENT PLEDGE AND SUPPORT AGREEMENTS (this
"Reaffirmation")  is executed as of this 30th day of November,  1995 by American
Communications  Services,  Inc., a Delaware corporation (the "Parent"), in favor
of AT&T Credit Corporation, a Delaware corporation ("Lender").

                                   WITNESSETH:

         WHEREAS, American Communications Services of Louisville, Inc.,
American Communication Services of Fort Worth, Inc. and American Communication
Services of Columbia, Inc., American Communication Services of Greenville, Inc.,
and American Communication Services of El Paso, Inc. (each a Delaware
corporation), entered into those certain Loan and Security Agreements each dated
respectively as of October 16, 1994, February 28, 1995, June 30, 1995 and
September 9, 1995 (collectively, as so amended and as further amended, restated
or modified. the "Loan Agreements") with Lender;

         WHEREAS,  to induce  Lender to enter  into the Loan  Agreement,  Parent
executed and delivered  those certain Parent Pledge and Support  Agreements each
dated as of October 16, 1994,  February 28, 1995, June 30, 1995 and September 9,
1995 (collectively,  as so amended and as further amended, restated or modified,
the "Pledge Agreements") in favor of the Lender;

         WHEREAS,  the parties to the Loan  Agreements  are  entering  into that
certain Master Amendment (the "Amendment") of even date herewith; and

         WHEREAS,  it is a  condition  precedent  to  the  effectiveness  of the
Amendment that Parent execute and deliver this Reaffirmation:

         NOW, THEREFORE, for and in consideration of the foregoing and for other
good and valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the Parent hereby agrees as follows:

         1. Reaffirmation of Pledge Agreement. The Parent acknowledges that it
has reviewed the Amendment and reaffirms that the Pledge Agreements shall
continue in full force and effect in accordance with their respective terms
notwithstanding the execution and delivery of the Amendment.

         2.  Governing Law and Jurisdiction. This Reaffirmation shall be
construed in accordance with and governed by the internal laws of the State of
New Jersey, without giving effect to any conflicts of laws principles.

                                       -1-

<PAGE>




         3.  Execution in Counterparts. This Reaffirmation may be executed in
any number of counterparts, each of which shall be an original, but all of which
shall together constitute one and the same agreement.

         IN WITNESS WHEREOF,  the parties hereto have caused this  Reaffirmation
to be duly executed by their duly authorized  representatives  as of the day and
year first written above.

                                                 AMERICAN COMMUNICATIONS
                                                        SERVICES, INC.

                                                 By:----------------------------
                                                 Name:--------------------------
                                                 Title:-------------------------


Acknowledged and agreed to
as of the day and year first
written above.

AT&T CREDIT CORPORATION

By:----------------------------
Name:--------------------------
Title:-------------------------

                                       -2-




                             MASTER REAFFIRMATION OF
                      PARENT PLEDGE AND SUPPORT AGREEMENTS


         This MASTER REAFFIRMATION OF PARENT PLEDGE AND SUPPORT AGREEMENTS (this
"Reaffirmation")  is executed as of this 30th day of November,  1995 by American
Communications  Services,  Inc., a Delaware corporation (the "Parent"), in favor
of AT&T Credit Corporation, a Delaware corporation ("Lender").

                                   WITNESSETH:

         WHEREAS, American Communications Services of Louisville, Inc., American
Communication  Services of Fort Worth, Inc. and American  Communication Services
of Columbia,  Inc.,  American  Communication  Services of Greenville,  Inc., and
American  Communication Services of El Paso, Inc. (each a Delaware corporation),
entered into those certain Loan and Security  Agreements each dated respectively
as of October 16, 1994,  February 28, 1995,  June 30, 1995 and September 9, 1995
(collectively,  as so amended and as further amended,  restated or modified, the
"Loan Agreements") with Lender;

         WHEREAS,  to induce  Lender to enter  into the Loan  Agreement,  Parent
executed and delivered  those certain Parent Pledge and Support  Agreements each
dated as of October 16, 1994,  February 28, 1995, June 30, 1995 and September 9,
1995 (collectively,  as so amended and as further amended,  restated or modified
the "Pledge Agreements") in favor of the Lender;

         WHEREAS,  the parties to the Loan  Agreements  are  entering  into that
certain Master Amendment (the "Amendment") of even date herewith; and

         WHEREAS, it is a condition precedent to the effectiveness of the
Amendment that Parent execute and deliver this Reaffirmation;

         NOW, THEREFORE, for and in consideration of the foregoing and for other
good and valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the Parent hereby agrees as follows:

         1.  Reaffirmation of Pledge Agreement. The Parent acknowledges that it
has reviewed the Amendment and reaffirms that the Pledge Agreements shall
continue in full force and effect in accordance with their respective terms
notwithstanding the execution and delivery of the Amendment.

         2.  Governing Law and Jurisdiction. This Reaffirmation shall be
construed in accordance with and governed by the internal laws of the State of
New Jersey, without giving effect to any conflicts of laws principles.


                                       -1-

<PAGE>



         3.  Execution in Counterparts. This Reaffirmation may be executed in
any number of counterparts, each of which shall be an original, but all of which
shall together constitute one and the same agreement.

         IN WITNESS WHEREOF,  the parties hereto have caused this  Reaffirmation
to be duly executed by their duly authorized  representatives  as of the day and
year first written above.


                                                   AMERICAN COMMUNICATIONS
                                                          SERVICES, INC.

                                                   /s/ RICHARD A. KOZAK
                                                   Name:  Richard A. Kozak
                                                   Title:  President & Chief
                                                             Executive Officer


Acknowledged and agreed to
as of the day and year first
written above.

AT&T CREDIT CORPORATION

/s/ EDWARD F. GROMEK
Name: Edward F. Gromek
Title: Vice President


                                       -2-






                                                    December 19, 1995


AT&T Credit Corporation
44 Whippany Road
Morristown, New Jersey  07962

Gentlemen:

                  AT&T Credit Corporation ("AT&T") is currently a party to Loan
and Security Agreements ("AT&T Loan Agreements") with various subsidiaries (the
"Funded Subsidiaries") of American Communications Services, Inc.  The Funded
Subsidiaries which are the subject of this letter include American Communication
Services of Fort Worth, Inc. ("Fort Worth"), American Communication Services of
Greenville, Inc. ("Greenville"), American Communication Services of Columbia,
Inc. ("Columbia") and American Communication Services of El Paso, Inc. ("El
Paso").

                  Each  AT&T  Loan   Agreement   provides  for  a  Capital  Loan
Commitment   Amount  and  an  Equipment  Loan  Commitment   Amount.  It  is  the
understanding of the Funded  Subsidiaries  that AT&T is agreeable to an increase
in  the  Capital  Loan  Equipment  Amount  for  each  Funded  Subsidiary  with a
corresponding  decrease in the Equipment Loan  Equipment  Amount for each Funded
Subsidiary.  The Funded  Subsidiaries  and AT&T therefore  hereby agree that the
Capital Loan Equipment Amount for each Funded  Subsidiary shall equal 90% of the
respective  aggregate  Commitment  Amount and that the Equipment Loan Commitment
Amount for each Funded  Subsidiary  shall equal 10% of the respective  aggregate
Commitment Amount.  Based upon an aggregate Commitment Amount for (i) Fort Worth
of $5,500,000,  (ii) Greenville of $5,200,000,  (iii) Columbia of $5,000,000 and
(iv) El Paso of $5,500,000,  the Funded  Subsidiaries and AT&T hereby agree that
the  definitions  shall be amended in each of the respective  Loan Agreements to
read as follows:


         1.  Fort Worth:  "Capital Loan Commitment Amount" shall mean the
lesser of (i) $4,950,000, inclusive of capitalized interest, if any, on the
Capital Loans and (ii) ninety percent (90%) of the outstanding principal balance
of all then outstanding Loans, inclusive of capitalized interest."

                  "Equipment Loan Commitment Amount" shall mean $550,000,
inclusive of capitalized interest, if any, on the Equipment Loans."




<PAGE>


AT&T Credit Corporation
December 19, 1995

         2.  Greenville:  "ACS Greenville Capital Loan Commitment Amount" shall
mean the lesser of (i) $4,680,000, inclusive of capitalized interest, if any, on
the ACS Greenville Capital Loans and (ii) ninety percent (90%) of the
outstanding principal balance of all Loans made by Lender to ACS Greenville,
inclusive of capitalized interest."

                  "ACS Greenville  Equipment Loan Commitment  Amount" shall mean
$520,000,  inclusive  of  capitalized  interest,  if any, on the ACS  Greenville
Equipment Loans."


         3.  Columbia:  "ACS Columbia Capital Loan Commitment Amount" shall
mean the lesser of (i) $4,500,000, inclusive of capitalized interest, if any, on
the ACS Columbia Capital Loans and (ii) ninety percent (90%) of the outstanding
principal balance of all Loans made by Lender to ACS Columbia, inclusive of
capitalized interest."

                  "ACS Columbia  Equipment  Loan  Commitment  Amount" shall mean
$500,000,  inclusive  of  capitalized  interest,  if any,  on the  ACS  Columbia
Equipment Loans."


         4.  El Paso:  "Capital Loan Commitment Amount" shall mean the lesser of
(i) $4,950,000, inclusive of capitalized interest, if any, on the Capital Loans
and (ii) ninety percent (90%) of the outstanding principal balance of all then
outstanding Loans, inclusive of captialized interest."

                  "Equipment Loan Commitment Amount" shall mean $550,000,
inclusive of capitalized interest, if any, on the Equipment Loans."


                  Each of the  Funded  Subsidiaries  and AT&T also agree that to
the  extent  (i) an amount  previously  borrowed  by a Funded  Subsidiary  as an
Equipment  Loan  exceeds the stated  amount for the  respective  Equipment  Loan
Commitment  Amount  or  (ii)  an  amount  borrowed  in the  future  by a  Funded
Subsidiary  as a Capital Loan exceeds the Capital Loan  Commitment  Amount,  but
does not in either case cause the aggregate of the then  outstanding  respective
Capital  Loans and  Equipment  Loans for that  Funded  Subsidiary  to exceed the
aggregate  Commitment  Amount set forth above, such excess shall be treated as a
Capital Loan.



                                       -2-

<PAGE>


AT&T Credit Corporation
December 19, 1995


                  Greenville,  Columbia  and  AT&T  therefore  also  agree  that
Section  2.08(f) of the respective  Loan  Agreement  shall be amended so that it
shall read in its entirety as follows:

                  "If the aggregate  principal balance (inclusive of capitalized
interest) of (i) either  Borrower's  Equipment  Loans  exceeds  such  Borrower's
Equipment Loan Commitment Amount or (ii) either Borrower's Capital Loans exceeds
such  Borrower's  Capital Loan  Commitment  Amount,  but in either case does not
cause  the  aggregate  of the then  outstanding  respective  Capital  Loans  and
Equipment Loans for such Borrower to exceed the amount which is the aggregate of
such  Borrower's  Equipment Loan  Commitment  Amount and Capital Loan Commitment
Amount, such excess shall be treated as a Capital Loan. Otherwise,  then in each
such case,  such Borrower shall  immediately  repay to Lender,  upon notice from
Lender, the amount by which the outstanding  principal balance of the respective
Loan Balance exceeds its respective Commitment Amount, together with all accrued
and unpaid interest on such excess principal up to the date of repayment."


                  Fort Worth, El Paso and AT&T therefore also agree that Section
2.08(f) of the respective Loan Agreements shall be amended so that it shall read
in its entirety as follows:

                  "If the aggregate  principal balance (inclusive of capitalized
interest) of (i) the  Equipment  Loans  exceeds the  Equipment  Loan  Commitment
Amount or (ii) the Capital Loans exceeds the Capital Loan Commitment Amount, but
in either  case does not cause the  aggregate  of the then  outstanding  Capital
Loans and  Equipment  Loans to exceed the amount  which is the  aggregate of the
Equipment Loan Commitment Amount and Capital Loan Commitment Amount, such excess
shall be treated as a Capital Loan. Otherwise,  then in each such case, Borrower
shall immediately repay to Lender,  upon notice from Lender, the amount by which
the  outstanding  principal  balance of the respective  Loan Balance exceeds its
respective  Commitment Amount,  together with all accrued and unpaid interest on
such excess principal up to the date of repayment."


                  Each  Funded   Subsidiary   and  AT&T  also  agrees  that  the
respective  amended  definitions  as set forth above shall be given  retroactive
effect,  such that the operation of the amended  definitions shall not (i) cause
such Funded Subsidiary to be in violation of Section 4.02(b), Section 4.02(d) or
Section 6.02 of the respective  Loan Agreement or (ii) cause an Event of Default
under Section 8.01(b) under the respective Loan Agreement.

                                       -3-

<PAGE>



                  Please   sign  where   indicated   below  to   indicate   your
acknowledgment and agreement with the foregoing.


                                             AMERICAN COMMUNICATION SERVICES
                                                   OF FORT WORTH, INC.

                                             /s/ RICHARD A. KOZAK
                                             Name: Richard A. Kozak
                                             Title: President & Chief
                                                    Executive Officer


                                              AMERICAN COMMUNICATION SERVICES
                                                   OF GREENVILLE, INC.

                                              /s/ RICHARD A. KOZAK
                                              Name: Richard A. Kozak
                                              Title: President & Chief
                                                     Executive Officer

                         
                                             AMERICAN COMMUNICATION SERVICES
                                                    OF COLUMBIA, INC.
                                             /s/ RICHARD A. KOZAK
                                             Name: Richard A. Kozak
                                             Title: President & Chief
                                                     Executive Officer


                                            AMERICAN COMMUNICATION SERVICES
                                               OF EL PASO, INC.
               
                                            /s/ RICHARD A. KOZAK
                                            Name: Richard A. Kozak
                                            Title: President & Chief
                                                    Executive Officer



ACKNOWLEDGED AND AGREED
- -----------------------

AT&T CREDIT CORPORATION

By:  __________________________

Name:  ________________________

Title:  _______________________

                                       -4-



                                     SECOND
                                MASTER AMENDMENT
                                       TO
                      LOAN AND SECURITY AGREEMENTS, WAIVER
                               AND EQUIPMENT NOTES
                             MODIFICATION AGREEMENT

         THIS SECOND MASTER AMENDMENT TO LOAN AND SECURITY AGREEMENTS, WAIVER
AND EQUIPMENT NOTES MODIFICATION AGREEMENT ("Master Amendment") is entered into
as of September 6, 1996 among  American  Communication  Services of Louisville,
Inc., a Delaware corporation ("Louisville"),  American Communication Services of
Fort Worth, Inc., a Delaware  corporation  ("Fort Worth"),  American
Communication Services of Columbia,  Inc., a Delaware corporation  ("Columbia"),
American  Communication  Services of  Greenville,  Inc., a Delaware  corporation
("Greenville"), and American Communication Services of El Paso, Inc. ("El Paso",
and collectively with Louisville, Fort Worth, Columbia and Greenville, the "ACSI
Borrower Subsidiaries") and AT&T Credit Corporation ("Lender").

                                   WITNESSETH:

         WHEREAS,  each of the ACSI Borrower Subsidiaries is party to a Loan and
Security Agreement with the Lender; specifically described as follows:

                  (i) Louisville and the Lender are parties to that certain Loan
                  and  Security  Agreement  dated as of  October  17,  1994,  as
                  amended by that certain  Amendment  No. 1 dated as of June 26,
                  1995 and that  certain  Master  Amendment  (the "First  Master
                  Amendment")  to  Loan  and  Security  Agreements  dated  as of
                  November  30,  1995  between  Lender  and  the  ACSI  Borrower
                  Subsidiaries  (as the same may  from  time to time be  further
                  amended,  modified,  supplemented or restated, the "Louisville
                  Loan Agreement");

                  (ii) Fort  Worth and the Lender  are  parties to that  certain
                  Loan and Security  Agreement dated as of February 28, 1995, as
                  amended by the First Master  Amendment and that certain Letter
                  Amendment  (the "Letter  Amendment")  dated as of December 19,
                  1995 between Lender and the ACSI Borrower  Subsidiaries  other
                  than  Louisville (as the same may from time to time be further
                  amended, modified, supplemented or restated.
                  the "Fort Worth Loan Agreement");

                  (iii) Columbia,  Greenville and the Lender are parties to that
                  certain Loan and Security Agreement dated as of June 30, 1995,
                  as  amended  by the  First  Master  Amendment  and the  Letter
                  Amendment  (as the  same  may  from  time  to time be  further
                  amended, modified, supplemented or restated, the "Columbia and
                  Greenville Loan Agreement"), and


                                       -1-

<PAGE>



                  (iv) El Paso and the Lender are parties to that  certain  Loan
                  and  Security  Agreement  dated as of  September  8, 1995,  as
                  amended by the First Master Amendment and the Letter Amendment
                  (as the  same  may  from  time to  time  be  further  amended,
                  modified,   supplemented  or  restated,   the  "El  Paso  Loan
                  Agreement",   and   collectively   with  the  Louisville  Loan
                  Agreement,  the Fort Worth Loan Agreement and the Columbia and
                  Greenville Loan Agreement, the "Loan Agreements");

         WHEREAS,  the ACSI Borrower  Subsidiaries  have requested the Lender to
modify the Loan  Agreements to increase the Capital Loan  Commitment  Amount and
decrease the Equipment Loan  Commitment  Amount in each of the  respective  Loan
Agreements  and to substitute as Exhibit A a modified  Business Plan for each of
the respective Loan Agreements,

         WHEREAS,  the Lender and the ACSI Borrower  Subsidiaries have agreed to
amend the  "Equipment  Notes" to make a technical  correction and to reflect the
reduced  "Commitment  Amount" for the "Equipment  Loans" (as each quoted term is
defined in the respective Loan Agreements for each ACSI Subsidiary); and

         WHEREAS,  the Lender and the ACSI Borrower  Subsidiaries have agreed to
amend the Loan  Agreements  on the terms and  conditions  set forth  herein  and
restate paragraph 2 of the Letter Amendment;

         NOW,  THEREFORE,  in consideration of the premises set forth above, the
terms  and   conditions   contained   herein,   and  other  good  and   valuable
consideration, the receipt and sufficiency of which are hereby acknowledged, the
ACSI  Borrower  Subsidiaries  and the  Lender  have  agreed  to  amend  the Loan
Agreements and the Equipment Notes as set forth below. Capitalized terms used in
this Master  Amendment which are not otherwise  defined  herein,  shall have the
meanings  given  such  terms in the  respective  Loan  Agreement  for each  ACSI
Borrower Subsidiary as applicable.

         1. Amendments to Loan Agreements. Effective as of the date hereof and
subject to the satisfaction of the conditions precedent set forth in Section 4
below, on and after the date hereof, the parties hereto agree as follows:

         1.1 The definition of "Capital Loan Commitment  Amount" in Section 1.01
of each of the Loan Agreements is hereby deleted and replaced as follows:

         (a)    In the Louisville Loan Agreement with the following definition:

                "Capital Loan Commitment  Amount" shall mean the lesser of (i)
                $5,216,242.00  inclusive of capitalized  interest,  if any, on
                the  Capital  Loans  and  (ii)  ninety  percent  (90%)  of the
                outstanding  principal balance of all then outstanding  Loans,
                inclusive of capitalized interest.

         (b)    In the Fort Worth Loan Agreement, with the following definition:


                                       -2-

<PAGE>



                "Capital Loan Commitment  Amount" shall mean the lesser of (i)
                $6,665,024.00  inclusive of capitalized  interest,  if any, on
                the  Capital  Loans  and  (ii)  ninety  percent  (90%)  of the
                outstanding  principal balance of all then outstanding  Loans,
                inclusive of capitalized interest."

         (c)    In the Columbia and Greenville Loan Agreement, with the
following definitions:

                  "ACS Columbia  Capital Loan Commitment  Amount" shall mean the
                  lesser of (i) $6,101,357.00 inclusive of capitalized interest,
                  if any,  on the ACS  Columbia  Capital  Loans and (ii)  ninety
                  percent  (90%) of the  outstanding  principal  balance  of all
                  Loans made by Lender to ACS Columbia, inclusive of capitalized
                  interest."

                  "ACS Greenville Capital Loan Commitment Amount" shall mean the
                  lesser of (i) $4,680,000, and (ii) ninety percent (90%) of the
                  outstanding  principal  balance of all loans made by Lender to
                  ACS Greenville, inclusive of capitalized interest. "

         (d)      In the El Paso Loan Agreement, with the following definition:

                  "Capital Loan Commitment  Amount" shall mean the lesser of (i)
                  $5,529,387.00  inclusive of capitalized  interest,  if any, on
                  the  Capital  Loans  and  (ii)  ninety  percent  (90%)  of the
                  outstanding  principal balance of all then outstanding  Loans,
                  inclusive of capitalized interest."

         1.2 The  definition  of "Capital  Note" in Section  1.01 of each of the
Loan Agreements is hereby deleted and replaced with the following:

         (a)    In the Louisville Loan Agreement, the Fort Worth Loan Agreement,
and the El Paso Loan Agreement with the following definition:

               "Capital  Note" shall mean the  promissory  note of the Borrower,
               substantially  in the form of Exhibit C  attached  hereto and any
               replacement or substitute therefor. "

         (b)    In the Columbia and Greenville Loan Agreement, with the
following definition:

                  "Capital  Note"  shall  mean  the  promissory  note of  either
                  Borrower,  substantially  in the form of  Exhibit  C  attached
                  hereto and any replacement or substitute therefor."

         1.3 The  definition of "Equipment  Loan  Commitment  Amount" in Section
1.01 of each of the Loan Agreements is hereby deleted and replaced as follows:

         (a)     In the Louisville Loan Agreement with the following definition:

                  "Equipment Loan Commitment  Amount" shall mean  $579,582.00,
                  inclusive of capitalized  interest, if any, on the Equipment
                  Loans."

                                       -3-

<PAGE>




         (b)     In the Fort Worth Loan Agreement with the following definition:

                  "Equipment Loan Commitment  Amount" shall mean  $740,558.00,
                  inclusive of capitalized  interest, if any, on the Equipment
                  Loans."

         (c)      In the Columbia and Greenville Loan Agreement, with the
following definitions:

                  "ACS Columbia  Equipment  Loan  Commitment  Amount" shall mean
                  $677,928.00, inclusive of capitalized interest, if any, on the
                  ACS Columbia Equipment Loans."

                  "ACS Greenville  Equipment Loan Commitment  Amount" shall mean
                  $520,000.00, inclusive of capitalized interest, if any, on the
                  ACS Greenville Equipment Loans."

         (d)      In the El Paso Loan Agreement, with the following definition:

                  "Equipment Loan Commitment  Amount" shall mean  $614,376.00,
                  inclusive of capitalized interests,  if any on the Equipment
                  Loans. "

         1.4  Section 2.08(f) of the Louisville Loan Agreement is hereby amended
in its entirety to read as follows:

                  "If the aggregate  principal balance (inclusive of capitalized
                  interest) of (i) the  Equipment  Loans  exceeds the  Equipment
                  Loan  Commitment  Amount or (ii) the Capital Loans exceeds the
                  Capital Loan  Commitment  Amount,  but in either case does not
                  cause the aggregate of the then outstanding  Capital Loans and
                  Equipment Loans to exceed the amount which is the aggregate of
                  the  Equipment  Loan   Commitment   Amount  and  Capital  Loan
                  Commitment  Amount,  such excess shall be treated as a Capital
                  Loan.  Otherwise,  then  in each  such  case,  Borrower  shall
                  immediately  repay to Lender,  upon  notice from  Lender,  the
                  amount  by which  the  outstanding  principal  balance  of the
                  respective  Loan  Balance  exceeds its  respective  Commitment
                  Amount,  together with all accrued and unpaid interest on such
                  excess principal up to the date of repayment. "

         1.5  Section 6.03 of each of the Loan Agreements is hereby amended to
add the following clause at the end thereof:

                  "and if no Default or Event of Default has then  occurred  and
                  is continuing, transfers occurring on or after June 1, 1996 of
                  Equipment and other equipment to Additional  System  Borrowers
                  and  other   subsidiaries   of  Parent  owning  and  operating
                  alternate access communication systems, with book value not to
                  exceed (i) $250,000 in the  aggregate,  and (ii) when combined
                  with similar  transfers made by Additional  System  Borrowers,
                  not to exceed  $500,000 in the  aggregate,  provided  that the
                  Person which receives such Equipment or other  equipment shall
                  pay the Borrower which  transferred such Equipment to it, cash
                  in the amount of the book value for such transferred Equipment
                  or  equipment,  within five  Business  Days of such  transfer,
                  subject to accounting adjustments in

                                       -4-

<PAGE>



                  connection  with  the  monthly  closing  of the  books  of the
                  Borrower,  the  Additional  System  Borrowers  and such  other
                  subsidiaries,  which accounting  adjustments shall be made not
                  later than forty-five (45) days after such fifth Business Day,
                  and provided further that the book value of all such transfers
                  by  the  Borrower  and  a  description  of  the  Equipment  or
                  equipment  transferred  shall be noted on the  monthly  report
                  required  to be  delivered  to the Lender  pursuant to Section
                  5.06(i) for the month in which such transfer occurred."

         1.6  Exhibits  A and C to each of the  respective  Loan  Agreements  is
hereby deleted in their  entirety and Exhibits A and C to this Master  Amendment
respectively are hereby substituted therefor, specifically as follows:

         (a) to the  Louisville  Loan  Agreement,  Exhibits A-1, and C-1 to this
Master  Amendment  shall  replace  Exhibits  A  and  C to  the  Louisville  Loan
Agreement, respectively.

         (b) to the Fort  Worth  Loan  Agreement,  Exhibits  A-2 and C-2 to this
Master  Amendment  shall  replace  Exhibits  A  and C to  the  Fort  Worth  Loan
Agreement, respectively.

         (c) to the Columbia and Greenville Loan Agreement, Exhibits A-3 and C-3
to this Master  Amendment  shall  replace  Exhibits A and C to the  Columbia and
Greenville Loan Agreement, respectively.

         (d) to the El Paso Loan Agreement,  Exhibits A-4 and C-4 to this Master
Amendment  shall  replace  Exhibits  A and C to  the  El  Paso  Loan  Agreement,
respectively.

         1.7 Section 6.01 of the El Paso Loan Agreement is amended to delete the
word "and" at the end of clause (iv), to add the word "and" at the end of clause
(v) thereof and to add the following clause (vi) thereto:

                  "(vi)  the  rights  of  El  Paso  Electric  Company,  a  Texas
                  corporation  ("El Paso  Electric  Company"),  pursuant to that
                  certain License Agreement dated as of December 6, 1995 between
                  El Paso Electric Company and Borrower. "

         2. Equipment  Notes  Modification.  Each Equipment Note executed by the
respective  ACSI Borrower  Subsidiary is hereby amended (i) to delete the phrase
"as set forth on Schedule A attached hereto" at the end of the first sentence in
the second  paragraph of the  respective  Equipment  Note and to substitute  the
following therefor: "as set forth in Section 2.06(b) of the Loan Agreement", and
(ii) to reduce the  principal  amount  thereof to the  amounts  set forth as the
respective Equipment Loan Commitment Amounts in Section 1.3 above.

         3.  Waiver.  Parent and each of ACSI Borrower Subsidiaries have advised
Lender  that as of May 31,  1996,  the  ACSI  Borrower  Subsidiaries  and  other
operating  subsidiaries  of Parent had engaged in  transfers  and  exchanges  of
Equipment and other  equipment,  which  transfers and exchanges of Equipment and
other equipment which were the property of the ACSI Borrower Subsidiaries had an
aggregate  book value not in excess of $380,000.  The Lender  hereby  waives any
Event of Default that

                                       -5-

<PAGE>



occurred  under  any  of  the  Loan  Agreements  as  a  result  of  any  of  the
above-described  transfers.  Nothing  contained  in  this  Section  3  shall  be
construed as waiving any other Event of Default or allowing any future transfers
of Equipment or other  equipment  not  permitted by the terms of the  respective
Loan Agreements.

         4. Conditions of Effectiveness of this Master Amendment. This Master
Amendment shall become effective and be deemed effective on the date first above
written subject to the Lender's receipt of each of the following:

         (i)      five (5) originals of this Master Amendment, duly executed by
                  the ACSI Borrower Subsidiaries and the Lender; and

         (ii)     Substituted and Amended Capital Notes by each of the ACSI
                  Borrower Subsidiaries;

         (iii)    five (5)  originals  of the  Master  Reaffirmation  of  Parent
                  Pledge and Support Agreements attached as Annex A hereto; and

         (iv)     perfection of security interest in all new filing
                  jurisdictions where respective Systems are being expanded.

         5. Further Assurances. The ACSI Borrower Subsidiaries hereby agree from
time to time,  as and when  requested  by the Lender,  to execute and deliver or
cause  to be  executed  and  delivered,  all  such  documents,  instruments  and
agreements  and to take or cause to be taken such further or other action as the
Lender  may deem  necessary  or  desirable  in order to carry out the intent and
purposes  of this  Master  Amendment,  the Loan  Agreements  or the  other  Loan
Documents.

         6.  Representations  and Warranties of the ACSI Borrower  Subsidiaries.
The ACSI  Borrower  Subsidiaries  hereby  represent and warrant that this Master
Amendment and their  respective  Loan  Agreement as  previously  executed and as
amended  hereby,   constitute  legal,  valid  and  binding  obligations  of  the
respective ACSI Borrower  Subsidiary and are enforceable  against the respective
ACSI Borrower Subsidiary in accordance with their terms.

         7. Reference to the Effect on the Agreement.

         (a) Upon the  effectiveness of Section 1 hereof,  on and after the date
hereof,  each reference in the Loan Agreement to "this Agreement,"  "hereunder,"
"hereof,"  "herein" or words of like import shall mean and be a reference to the
respective Loan Agreement as amended hereby.

         (b) Except as specifically set forth above, each of the Loan Agreements
and the Equipment  Notes,  and all other  documents,  instruments and agreements
executed and/or  delivered in connection  therewith,  shall remain in full force
and effect, and are hereby ratified and confirmed.

         (c) The execution,  delivery and effectiveness of this Master Amendment
shall  not,  except as  expressly  provided  herein,  operate as a waiver of any
right, power or remedy of the Lender, nor

                                       -6-

<PAGE>



constitute a waiver of any  provision of the Loan  Agreements  or the  Equipment
Notes,  or any other  documents,  instruments  and  agreements  executed  and/or
delivered in connection therewith.

         8. Headings. Section headings in this Master Amendment are included
herein for convenience of reference only and shall not constitute a part of this
Master Amendment for any other purpose.

         9. Counterparts: Facsimile Signatures. This Master Amendment may be
executed by one or more of the parties to the Master Amendment on any number of
separate counterparts and all of said counterparts taken together shall be
deemed to constitute one and the same instrument. Each of the parties hereto
agrees that a signature transmitted by facsimile transmission shall be effective
to bind the party so transmitting its signature.

         10. Entire Agreement.  This Master  Amendment,  taken together with the
respective  Loan  Agreements  and all of the other  respective  Loan  Documents,
embodies  the entire  agreement  and  understanding  of the  parties  hereto and
supersedes all prior agreements and  understandings,  written and oral, relating
to the subject matter hereof.

         11.  Applicable  Law,  Severability.  This  Master  Amendment  shall be
governed by, and construed in accordance  with, the internal laws (as opposed to
the  conflict  of laws  provisions)  and  decisions  of the State of New Jersey.
Whenever possible,  each provision of this Master Amendment shall be interpreted
in such manner as to be effective  and valid under  applicable  law, but, if any
provision of this Master  Amendment  shall be held to be  prohibited  or invalid
under  applicable law, such provision shall be ineffective only to the extent of
such  prohibition  or  invalidity,  without  invalidating  the remainder of such
provision or the remaining provisions of this Master Amendment.

[THE REMAINDER OF THIS PAGE INTENTIONALLY BLANK]


                                       -7-

<PAGE>



         IN WITNESS WHEREOF,  this Master Amendment has been duly executed as of
the date set forth above.

                                      AMERICAN COMMUNICATION
                                      SERVICES OF LOUISVILLE, INC.

                                      /s/ RICHARD A. KOZAK
                                      Name: Richard A. Kozak
                                      Title: President & Chief Executive Officer

                                      AMERICAN COMMUNICATION
                                      SERVICES OF FORT WORTH. INC.

                                      /s/ RICHARD A. KOZAK
                                      Name: Richard A. Kozak
                                      Title: President & Chief Executive Officer

                                      AMERICAN COMMUNICATION
                                      SERVICES OF COLUMBIA, INC.

                                      /s/ RICHARD A. KOZAK
                                      Name: Richard A. Kozak
                                      Title: President & Chief Executive Officer

                                      AMERICAN COMMUNICATION
                                      SERVICES OF GREENVILLE, INC.

                                      /s/ RICHARD A. KOZAK
                                      Name: Richard A. Kozak
                                      Title: President & Chief Executive Officer

                                      AMERICAN COMMUNICATION
                                      SERVICES OF EL PASO, INC.

                                      /s/ RICHARD A. KOZAK
                                      Name: Richard A. Kozak
                                      Title: President & Chief Executive Officer

                                      AT&T CREDIT CORPORATION

                                      /s/ EDWARD W. ANDREWS, JR.
                                      Name: Edward W. Andrews, Jr.
                                      Title: President


                                       -8-

<PAGE>



                                    EXHIBIT A
                                       to
                           SECOND MASTER AMENDMENT TO
                                 LOAN AGREEMENTS

         A-1      Exhibit A to Louisville Loan Agreement
         A-2      Exhibit A to Fort Worth Loan Agreement
         A-3      Exhibit A to Columbia and Greenville Loan Agreement
         A-4      Exhibit A to El Paso Loan Agreement


                                       -1-

<PAGE>



                                   EXHIBIT A-1
                                       to
                           SECOND MASTER AMENDMENT TO
                                 LOAN AGREEMENTS

                                    EXHIBIT A



                                  BUSINESS PLAN
                                    Attached.





                                       -2-

<PAGE>



                                   EXHIBIT A-2
                                       to
                           SECOND MASTER AMENDMENT TO
                                 LOAN AGREEMENTS

                                   EXHIBIT A

                                  BUSINESS PLAN
                                    Attached.


                                       -3-

<PAGE>



                                   EXHIBIT A-3
                                       to
                           SECOND MASTER AMENDMENT TO
                                 LOAN AGREEMENTS

                                    EXHIBIT A

                                  BUSINESS PLAN
                                    Attached.


                                       -4-

<PAGE>



                                   EXHIBIT A-4
                                       to
                           SECOND MASTER AMENDMENT TO
                                 LOAN AGREEMENTS

                                  BUSINESS PLAN
                                    Attached.

                                    EXHIBIT A


                                       -5-

<PAGE>



                                    EXHIBIT C
                                       to
                           SECOND MASTER AMENDMENT TO
                                 LOAN AGREEMENTS

         C-1      Exhibit C to Louisville Loan Agreement
         C-2      Exhibit C to Fort Worth Loan Agreement
         C-3      Exhibit C to Columbia and Greenville Loan Agreement
         C-4      Exhibit C to El Paso Loan Agreement

                                       -6-
<PAGE>



                                                                         ANNEX A

                                     SECOND
                             MASTER REAFFIRMATION OF
                      PARENT PLEDGE AND SUPPORT AGREEMENTS

         This SECOND MASTER REAFFIRMATION OF PARENT PLEDGE AND SUPPORT
AGREEMENTS (this  "Reaffirmation")  is executed as of this 6th day of September,
1996 by American  Communications  Services,  Inc., a Delaware  corporation  (the
"Parent"),  in  favor  of  AT&T  Credit  Corporation,   a  Delaware  corporation
("Lender").

                                   WITNESSETH

         WHEREAS,  American  Communications  Services of Louisville,  Inc.,
American Communication  Services of Fort Worth, Inc., American  Communication
Services of Columbia,  Inc. and American  Communication  Services of Greenville,
Inc., and American  Communication Services of El Paso, Inc. (each a Delaware
corporation), entered into those certain Loan and Security  Agreements each
dated respectively as of October 16, 1994,  February 28, 1995, June 30, 1995 and
September 9, 1995, as amended  (collectively,  as so amended  and as further
 amended,  restated or modified. the "Loan Agreements") with Lender;

         WHEREAS,  to induce  Lender to enter  into the Loan  Agreement,  Parent
executed and delivered  those certain Parent Pledge and Support  Agreements each
dated as of October 16, 1994,  February 28, 1995, June 30, 1995 and September 9,
1995, as amended (collectively,  as so amended and as further amended,  restated
or modified, the "Pledge Agreements") in favor of the Lender;

         WHEREAS,  the parties to the Loan  Agreements  are  entering  into that
certain  Second  Master  Amendment to Loan and Security  Agreements,  Waiver and
Equipment Notes Modification  Agreement (the "Amendment") of even date herewith;
and

         WHEREAS, it is a condition precedent to the effectiveness of the
Amendment that Parent execute and deliver this Reaffirmation;

         NOW, THEREFORE, for and in consideration of the foregoing and for other
good and valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the Parent hereby agrees as follows:

         1. Reaffirmation of Pledge Agreements.  The Parent acknowledges that it
has received and reviewed the Amendment and reaffirms that (a) the pledge of the
"Pledged Stock" as defined in the respective Pledge Agreements and the liens and
security  interest  granted therein and (b) the Pledge  Agreements and the liens
and security interest granted therein shall continue in full force and effect in
accordance  with  their  respective  terms  notwithstanding  the  execution  and
delivery of the Amendment.

         2. Governing Law and Jurisdiction. This Reaffirmation shall be
construed in accordance with and governed by the internal laws of the State of
New Jersey, without giving effect to any conflicts of laws principles.


<PAGE>




         3. Execution in Counterparts. This Reaffirmation may be executed in any
number of counterparts, each of which shall be an original, but all of which
shall together constitute one and the same agreement.

                [THE REMAINDER OF THIS PAGE INTENTIONALLY BLANK]



<PAGE>



         IN WITNESS WHEREOF,  the parties hereto have caused this  Reaffirmation
to be duly executed by their duly authorized  representatives  as of the day and
year first written above.

                                          AMERICAN COMMUNICATIONS SERVICES, INC.

                                          By:
                                          Name:
                                          Title:

         Acknowledged and agreed to as of the day and year first written above.

                                          AT&T CREDIT CORPORATION

                                          By:
                                          Name:
                                          Title:




<PAGE>



                                                                       EXHIBIT C

                                     FORM OF
                      SUBSTITUTED AND AMENDED CAPITAL NOTE

$                                                         Morristown, New Jersey
                                                                          [DATE]

         FOR VALUE RECEIVED, the undersigned, AMERICAN COMMUNICATION SERVICES OF
LOUISVILLE,   INC.,   a   Delaware   corporation   (the   "Borrower"),    hereby
unconditionally  promises  to pay to the  order of AT&T  CREDIT  CORPORATION,  a
Delaware  corporation  (the  "Lender"),  at  its  office  at 44  Whippany  Road,
Morristown,  New Jersey 07962-1983, or at such other place as the holder of this
Substituted and Amended Capital Note may from time to time designate in writing,
in lawful  money of the United  States of America and in  immediately  available
funds,  the lesser of (i) the principal sum of AND NO/100 DOLLARS ($ ), and (ii)
the unpaid  amount of all "Capital  Loans"  (referred to below),  together  with
interest on the principal balance remaining from time to time unpaid at the rate
provided  below from the date such  principal is advanced  until payment in full
thereof.  This  Substituted  and Amended  Capital Note is referred to in and was
executed  and  delivered  pursuant  to  Section  2.04 of that  certain  Loan and
Security  Agreement  dated as of October 17, 1994, as amended (as so amended and
restated,  and further amended,  restated and supplemented or modified from time
to time,  the "Loan  Agreement") by and between the Borrower and the Lender (the
"Loan  Agreement"),  to which  reference  is hereby made for a statement  of the
terms and conditions  under which the Capital Loans  evidenced  hereby are being
made and are to be  repaid.  All terms  which are  capitalized  and used  herein
(which are not otherwise  specifically  defined herein) and which are defined in
the Loan Agreement shall be used in this Substituted and Amended Capital Note as
defined in the Loan Agreement.

         The  principal  indebtedness  evidenced  hereby  shall  be  payable  in
twenty-eight (28) consecutive  quarterly  installments,  as set forth in Section
2.06(b) of the Loan Agreement.  The principal  amount hereof may be prepaid only
in accordance with the terms of the Loan Agreement.

         Borrower  further  promises to pay interest on the  outstanding  unpaid
principal  amount hereof which remains unpaid from the date hereof until payment
in full hereof at the rates described in the Loan Agreement,  payable  quarterly
in arrears on the Payment  Dates and subject to  capitalization  of the interest
payable  prior  to the  Commitment  Termination  Date  in  accordance  with  the
provisions of Section 2.06 of the Loan Agreement, and calculated on the basis of
a 360-day year comprised of twelve 30 day months, compounded monthly;  provided,
however,  that if the Borrower  shall default in the payment of the principal or
interest hereof, the Borrower promises to, on demand, pay interest on the entire
unpaid  principal  amount  hereof at a rate equal to four percent (4%) per annum
above the rate of interest  that would  otherwise be  applicable,  from the date
such  payment is due to the date of actual  payment,  and if any other  Event of
Default  occurs and is  continuing,  the Borrower  promises  to, on demand,  pay
interest on the entire  unpaid  principal  amount  hereof at a rate equal to two
percent  (2%) per annum  above the rate of  interest  that  would  otherwise  be
applicable, until such Event of Default is cured.

         If payment hereunder becomes due and payable on a Saturday,  Sunday, or
legal holiday,  under the laws of the State of New Jersey,  the due date thereof
shall be extended to the next  succeeding  Business  Day, and interest  shall be
payable thereon during such extension at the rate specified above.


<PAGE>



Checks,  drafts or similar  items of payment  received  by the Lender  shall not
constitute  payment,  but  credit  therefor  shall,  solely  for the  purpose of
computing  interest  earned  by the  Lender,  be  given  on the date the same is
honored  by the  Lender's  depository  bank  and  final  settlement  thereof  is
reflected  by  irrevocable  credit to the Lender's  account in such bank.  In no
contingency or event whatsoever shall interest charged  hereunder,  however such
interest may be characterized  or computed,  exceed the highest rate permissible
under  any  law  which a  court  of  competent  jurisdiction  shall,  in a final
determination, deem applicable hereto. In the event that such a court determines
that the Lender has  received  interest  hereunder in excess of the highest rate
applicable  hereto,  the Lender shall  promptly  refund such excess  interest to
Borrower.

         The  unpaid  balance of the  indebtedness  hitherto  evidenced  by that
certain Capital Note dated October 17, 1994 in the original  principal amount of
$2,214,000  (the "Former Note") made by the Borrower and delivered to the Lender
remains  outstanding  as of the date  hereof  and shall  continue  to be secured
pursuant  to the terms of the Loan  Documents.  The  principal  balance  of this
Substituted  and  Amended  Capital  Note  includes  the  indebtedness   hitherto
evidenced by the Former Note and to the extent such  indebtedness is included in
the  principal  balance  of this  Substituted  and  Amended  Capital  Note,  the
Substituted  and Amended Capital Note (i) merely  reevidences  the  indebtedness
hitherto  evidenced by the Former Note, (ii) is given in  substitution  for, and
not as payment of the Former Note, and (iii) is in no way intended to constitute
a novation of the Former Note.

         Except as otherwise agreed in the Loan Agreement,  payments received by
the Lender from the Borrower on this  Substituted and Amended Capital Note shall
be applied  first to the payment of  interest  which is due and payable and only
thereafter to the outstanding principal balance.

         Presentment,  protest and notice of nonpayment are hereby waived by the
Borrower.

         This  Substituted and Amended Capital Note shall be interpreted and the
rights and  liabilities of the parties hereto  determined in accordance with the
internal laws (as opposed to conflicts of law  provisions)  and decisions of the
State of New Jersey.  Whenever  possible each provision of this  Substituted and
Amended  Capital Note shall be interpreted in such manner as to be effective and
valid under applicable law, but if any provision of this Substituted and Amended
Capital  Note shall be  prohibited  by or invalid  under  applicable  law,  such
provision shall be ineffective to the extent of such  prohibition or invalidity,
without invalidating the remainder of such provision or the remaining provisions
of this  Substituted and Amended Capital Note.  Whenever in this Substituted and
Amended Capital Note reference is made to the Lender or Borrower, such reference
is made to include,  as applicable,  a reference to their respective  successors
and assigns.  The provisions of this  Substituted and Amended Capital Note shall
be  binding  upon and  inure to the  benefit  of said  successors  and  assigns.
Borrower's successors and assigns shall include, without limitation, a receiver,
trustee or debtor in possession of or for the Borrower.

                                                 AMERICAN COMMUNICATION SERVICES
                                                           OF LOUISVILLE, INC.

                                                 By:
                                                 Its:



<PAGE>



                                                                       EXHIBIT C
                      SUBSTITUTED AND AMENDED CAPITAL NOTE

                                                          Morristown, New Jersey
$                                                                         [DATE]

         FOR VALUE RECEIVED, the undersigned, AMERICAN COMMUNICATION SERVICES OF
FORT   WORTH,   INC.,   a  Delaware   corporation   (the   "Borrower"),   hereby
unconditionally  promises  to pay to the  order of AT&T  CREDIT  CORPORATION,  a
Delaware  corporation  (the  "Lender"),  at  its  office  at 44  Whippany  Road,
Morristown,  New Jersey 07962-1983, or at such other place as the holder of this
Substituted and Amended Capital Note may from time to time designate in writing,
in lawful  money of the United  States of America and in  immediately  available
funds,  the lesser of (i) the principal sum of AND NO/100 DOLLARS ($ ), and (ii)
the unpaid  amount of all "Capital  Loans"  (referred to below),  together  with
interest on the principal balance remaining from time to time unpaid at the rate
provided  below from the date such  principal is advanced  until payment in full
thereof.  This  Substituted  and Amended  Capital Note is referred to in and was
executed  and  delivered  pursuant  to  Section  2.04 of that  certain  Loan and
Security  Agreement dated as of February 28, 1995, as amended (as so amended and
restated,  and further amended,  restated and supplemented or modified from time
to time,  the "Loan  Agreement") by and between the Borrower and the Lender (the
"Loan  Agreement"),  to which  reference  is hereby made for a statement  of the
terms and conditions  under which the Capital Loans  evidenced  hereby are being
made and are to be  repaid.  All terms  which are  capitalized  and used  herein
(which are not otherwise  specifically  defined herein) and which are defined in
the Loan Agreement shall be used in this Substituted and Amended Capital Note as
defined in the Loan Agreement.

         The  principal  indebtedness  evidenced  hereby  shall  be  payable  in
twenty-eight (28) consecutive  quarterly  installments,  as set forth in Section
2.06(b) of the Loan Agreement.  The principal  amount hereof may be prepaid only
in accordance with the terms of the Loan Agreement.

         Borrower  further  promises to pay interest on the  outstanding  unpaid
principal  amount hereof which remains unpaid from the date hereof until payment
in full hereof at the rates described in the Loan Agreement,  payable  quarterly
in arrears on the Payment  Dates and subject to  capitalization  of the interest
payable  prior  to the  Commitment  Termination  Date  in  accordance  with  the
provisions of Section 2.06 of the Loan Agreement, and calculated on the basis of
a 360-day year comprised of twelve 30 day months, compounded monthly;  provided,
however,  that if the Borrower  shall default in the payment of the principal or
interest hereof, the Borrower promises to, on demand, pay interest on the entire
unpaid  principal  amount  hereof at a rate equal to four percent (4%) per annum
above the rate of interest  that would  otherwise be  applicable,  from the date
such  payment is due to the date of actual  payment,  and if any other  Event of
Default  occurs and is  continuing,  the Borrower  promises  to, on demand,  pay
interest on the entire  unpaid  principal  amount  hereof at a rate equal to two
percent  (2%) per annum  above the rate of  interest  that  would  otherwise  be
applicable, until such Event of Default is cured.

         If payment hereunder becomes due and payable on a Saturday,  Sunday, or
legal holiday,  under the laws of the State of New Jersey,  the due date thereof
shall be extended to the next  succeeding  Business  Day, and interest  shall be
payable  thereon  during such  extension at the rate  specified  above.  Checks,
drafts or similar items of payment  received by the Lender shall not  constitute
payment, but credit therefor shall, solely for the purpose of computing interest
earned by the Lender, be given on the


<PAGE>



date the same is honored by the Lender's  depository  bank and final  settlement
thereof is reflected by irrevocable credit to the Lender's account in such bank.
In no contingency or event whatsoever shall interest charged hereunder,  however
such  interest  may be  characterized  or  computed,  exceed  the  highest  rate
permissible  under any law which a court of competent  jurisdiction  shall, in a
final  determination,  deem  applicable  hereto.  In the event that such a court
determines  that the Lender has  received  interest  hereunder  in excess of the
highest rate  applicable  hereto,  the Lender shall promptly  refund such excess
interest to Borrower.

         The  unpaid  balance of the  indebtedness  hitherto  evidenced  by that
certain  Capital  Note  dated May 1, 1995 in the  original  principal  amount of
$2,970,000  (the "Former Note") made by the Borrower and delivered to the Lender
remains  outstanding  as of the date  hereof  and shall  continue  to be secured
pursuant  to the terms of the Loan  Documents.  The  principal  balance  of this
Substituted  and  Amended  Capital  Note  includes  the  indebtedness   hitherto
evidenced by the Former Note and to the extent such  indebtedness is included in
the  principal  balance  of this  Substituted  and  Amended  Capital  Note,  the
Substituted  and Amended Capital Note (i) merely  reevidences  the  indebtedness
hitherto  evidenced by the Former Note, (ii) is given in  substitution  for, and
not as payment of the Former Note, and (iii) is in no way intended to constitute
a novation of the Former Note.

         Except as otherwise agreed in the Loan Agreement,  payments received by
the Lender from the Borrower on this  Substituted and Amended Capital Note shall
be applied  first to the payment of  interest  which is due and payable and only
thereafter to the outstanding principal balance.

         Presentment,  protest and notice of nonpayment are hereby waived by the
Borrower.

         This  Substituted and Amended Capital Note shall be interpreted and the
rights and  liabilities of the parties hereto  determined in accordance with the
internal laws (as opposed to conflicts of law  provisions)  and decisions of the
State of New Jersey.  Whenever  possible each provision of this  Substituted and
Amended  Capital Note shall be interpreted in such manner as to be effective and
valid under applicable law, but if any provision of this Substituted and Amended
Capital  Note shall be  prohibited  by or invalid  under  applicable  law,  such
provision shall be ineffective to the extent of such  prohibition or invalidity,
without invalidating the remainder of such provision or the remaining provisions
of this  Substituted and Amended Capital Note.  Whenever in this Substituted and
Amended Capital Note reference is made to the Lender or Borrower, such reference
is made to include,  as applicable,  a reference to their respective  successors
and assigns.  The provisions of this  Substituted and Amended Capital Note shall
be  binding  upon and  inure to the  benefit  of said  successors  and  assigns.
Borrower's successors and assigns shall include, without limitation, a receiver,
trustee or debtor in possession of or for the Borrower.

                                                 AMERICAN COMMUNICATION SERVICES
                                                           OF FORT WORTH, INC.

                                                 By:
                                                 Its:



<PAGE>



                                                                       EXHIBIT C

                      SUBSTITUTED AND AMENDED CAPITAL NOTE

                                                          Morristown, New Jersey
$                                                                         [DATE]

         FOR VALUE RECEIVED, the undersigned, AMERICAN COMMUNICATION SERVICES OF
COLUMBIA, INC., a Delaware corporation (the "Borrower"),  hereby unconditionally
promises to pay to the order of AT&T CREDIT CORPORATION,  a Delaware corporation
(the  "Lender"),  at its  office at 44  Whippany  Road,  Morristown,  New Jersey
07962-1983, or at such other place as the holder of this Substituted and Amended
Capital Note may from time to time designate in writing,  in lawful money of the
United States of America and in immediately  available  funds, the lesser of (i)
the principal sum of

         AND NO/100  DOLLARS ($ ), and (ii) the  unpaid  amount of all  "Capital
Loans"  (referred to below),  together with  interest on the  principal  balance
remaining from time to time unpaid at the rate provided below from the date such
principal  is advanced  until  payment in full  thereof.  This  Substituted  and
Amended  Capital Note is referred to in and was executed and delivered  pursuant
to Section 2.04 of that certain Loan and Security Agreement dated as of June 30,
1995, as amended (as so amended and restated, and further amended,  restated and
supplemented  or modified from time to time, the "Loan  Agreement") by and among
the Borrower,  American  Communication  Services of  Greenville,  Inc.,  and the
Lender (the "Loan Agreement"), to which reference is hereby made for a statement
of the terms and conditions  under which the Capital Loans evidenced  hereby are
being made and are to be repaid. All terms which are capitalized and used herein
(which are not otherwise  specifically  defined herein) and which are defined in
the Loan Agreement shall be used in this Substituted and Amended Capital Note as
defined in the Loan Agreement.

         The  principal  indebtedness  evidenced  hereby  shall  be  payable  in
twenty-eight (28) consecutive  quarterly  installments,  as set forth in Section
2.06(b) of the Loan Agreement.  The principal  amount hereof may be prepaid only
in accordance with the terms of the Loan Agreement.

         Borrower  further  promises to pay interest on the  outstanding  unpaid
principal  amount hereof which remains unpaid from the date hereof until payment
in full hereof at the rates described in the Loan Agreement,  payable  quarterly
in arrears on the Payment  Dates and subject to  capitalization  of the interest
payable  prior  to the  Commitment  Termination  Date  in  accordance  with  the
provisions of Section 2.06 of the Loan Agreement, and calculated on the basis of
a 360-day year comprised of twelve 30 day months, compounded monthly;  provided,
however,  that if the Borrower  shall default in the payment of the principal or
interest hereof, the Borrower promises to, on demand, pay interest on the entire
unpaid  principal  amount  hereof at a rate equal to four percent (4%) per annum
above the rate of interest  that would  otherwise be  applicable,  from the date
such  payment is due to the date of actual  payment,  and if any other  Event of
Default  occurs and is  continuing,  the Borrower  promises  to, on demand,  pay
interest on the entire unpaid.

         Whenever in this Substituted and Amended Capital Note reference is made
to the Lender or Borrower,  such reference is made to include, as applicable,  a
reference to their respective successors


<PAGE>



and assigns.  The provisions of this  Substituted and Amended Capital Note shall
be  binding  upon and  inure to the  benefit  of said  successors  and  assigns.
Borrower's successors and assigns shall include, without limitation, a receiver,
trustee or debtor in possession of or for the Borrower.

                                                AMERICAN COMMUNICATION SERVICES
                                                            OF COLUMBIA, INC.

                                                By:
                                                Its:


<PAGE>



                                                                       EXHIBIT C

                      SUBSTITUTED AND AMENDED CAPITAL NOTE

$                                                                         [DATE]

         FOR VALUE RECEIVED, the undersigned, AMERICAN COMMUNICATION SERVICES OF
GREENVILLE,   INC.,   a   Delaware   corporation   (the   "Borrower"),    hereby
unconditionally  promises  to pay to the  order of AT&T  CREDIT  CORPORATION,  a
Delaware  corporation  (the  "Lender"),  at  its  office  at 44  Whippany  Road,
Morristown, New Jersey 07962- 1983, or at such other place as the holder of this
Substituted and Amended Capital Note may from time to time designate in writing,
in lawful  money of the United  States of America and in  immediately  available
funds, the lesser of (i) the principal sum of

         AND NO/100  DOLLARS ($ ), and (ii) the  unpaid  amount of all  "Capital
Loans"  (referred to below),  together with  interest on the  principal  balance
remaining from time to time unpaid at the rate provided below from the date such
principal  is advanced  until  payment in full  thereof.  This  Substituted  and
Amended  Capital Note is referred to in and was executed and delivered  pursuant
to Section 2.04 of that certain Loan and Security Agreement dated as of June 30,
1995, as amended (as so amended and restated, and further amended,  restated and
supplemented  or modified from time to time, the "Loan  Agreement") by and among
the Borrower,  American Communication Services of Columbia, Inc., and the Lender
(the "Loan Agreement"), to which reference is hereby made for a statement of the
terms and conditions  under which the Capital Loans  evidenced  hereby are being
made and are to be  repaid.  All terms  which are  capitalized  and used  herein
(which are not otherwise  specifically  defined herein) and which are defined in
the Loan Agreement shall be used in this Substituted and Amended Capital Note as
defined in the Loan Agreement.

         The  principal  indebtedness  evidenced  hereby  shall  be  payable  in
twenty-eight (28) consecutive  quarterly  installments,  as set forth in Section
2.06(b) of the Loan Agreement.  The principal  amount hereof may be prepaid only
in accordance with the terms of the Loan Agreement.

         Borrower  further  promises to pay interest on the  outstanding  unpaid
principal  amount hereof which remains unpaid from the date hereof until payment
in full hereof at the rates described in the Loan Agreement,  payable  quarterly
in arrears on the Payment  Dates and subject to  capitalization  of the interest
payable  prior  to the  Commitment  Termination  Date  in  accordance  with  the
provisions of Section 2.06 of the Loan Agreement, and calculated on the basis of
a 360-day year comprised of twelve 30 day months, compounded monthly;  provided,
however,  that if the Borrower  shall default in the payment of the principal or
interest hereof, the Borrower promises to, on demand, pay interest on the entire
unpaid  principal  amount  hereof at a rate equal to four percent (4%) per annum
above the rate of interest  that would  otherwise be  applicable,  from the date
such  payment is due to the date of actual  payment,  and if any other  Event of
Default  occurs and is  continuing,  the Borrower  promises  to, on demand,  pay
interest on the entire  unpaid  principal  amount  hereof at a rate equal to two
percent  (2%) per annum  above the rate of  interest  that  would  otherwise  be
applicable, until such Event of Default is cured.

         If payment hereunder becomes due and payable on a Saturday,  Sunday, or
legal holiday,  under the laws of the State of New Jersey,  the due date thereof
shall be extended to the next succeeding


<PAGE>



Business Day, and interest shall be payable thereon during such extension at the
rate specified above. Checks, drafts or similar items of payment received by the
Lender shall not constitute  payment,  but credit therefor shall, solely for the
purpose of  computing  interest  earned by the Lender,  be given on the date the
same is honored by the Lender's  depository bank and final settlement thereof is
reflected  by  irrevocable  credit to the Lender's  account in such bank.  In no
contingency or event whatsoever shall interest charged  hereunder,  however such
interest may be characterized  or computed,  exceed the highest rate permissible
under  any  law  which a  court  of  competent  jurisdiction  shall,  in a final
determination, deem applicable hereto. In the event that such a court determines
that the Lender has  received  interest  hereunder in excess of the highest rate
applicable  hereto,  the Lender shall  promptly  refund such excess  interest to
Borrower.

         The  unpaid  balance of the  indebtedness  hitherto  evidenced  by that
certain  Capital Note dated July 21, 1995 in the original  amount of  $2,808,000
(the "Former  Note") made by the Borrower  and  delivered to the Lender  remains
outstanding as of the date hereof and shall  continue to be secured  pursuant to
the terms of the Loan Documents.  The principal  balance of this Substituted and
Amended Capital Note includes the indebtedness  hitherto evidenced by the Former
Note and to the extent such indebtedness is included in the principal balance of
this  Substituted  and Amended Capital Note, the Substituted and Amended Capital
Note (i) merely  reevidences the indebtedness  hitherto  evidenced by the Former
Note, (ii) is given in substitution  for, and not as payment of the Former Note,
and (iii) is in no way intended to constitute a novation of the Former Note.

         Except as otherwise agreed in the Loan Agreement,  payments received by
the Lender from the Borrower on this  Substituted and Amended Capital Note shall
be applied  first to the payment of  interest  which is due and payable and only
thereafter to the outstanding principal balance.

         Presentment,  protest and notice of nonpayment are hereby waived by the
Borrower.

         This  Substituted and Amended Capital Note shall be interpreted and the
rights and  liabilities of the parties hereto  determined in accordance with the
internal laws (as opposed to conflicts of law  provisions)  and decisions of the
State of New Jersey.  Whenever  possible each provision of this  Substituted and
Amended  Capital Note shall be interpreted in such manner as to be effective and
valid under applicable law, but if any provision of this Substituted and Amended
Capital  Note shall be  prohibited  by or invalid  under  applicable  law,  such
provision shall be ineffective to the extent of such  prohibition or invalidity,
without invalidating the remainder of such provision or the remaining provisions
of this Substituted and Amended Capital Note.

         Whenever in this Substituted and Amended Capital Note reference is made
to the Lender or Borrower;:such  reference is made to include, as applicable,  a
reference to their  respective  successors  and assigns.  The provisions of this
Substituted  and  Amended  Capital  Note shall be binding  upon and inure to the
benefit of said successors and assigns.  Borrower's successors and assigns shall
include, without limitation,  a receiver,  trustee or debtor in possession of or
for the Borrower.

                                                 AMERICAN COMMUNICATION SERVICES
                                                           OF GREENVILLE, INC.
         
                                                 By:
                                                 Its:


<PAGE>



                                                                       EXHIBIT C

                      SUBSTITUTED AND AMENDED CAPITAL NOTE

                                                          Morristown, New Jersey
$                                                                         [DATE]

         FOR VALUE RECEIVED, the undersigned, AMERICAN COMMUNICATION SERVICES OF
EL PASO, INC., a Delaware corporation (the "Borrower"),  hereby  unconditionally
promises to pay to the order of AT&T CREDIT CORPORATION,  a Delaware corporation
(the  "Lender"),  at its  office at 44  Whippany  Road,  Morristown,  New Jersey
07962-1983, or at such other place as the holder of this Substituted and Amended
Capital Note may from time to time designate in writing,  in lawful money of the
United States of America and in immediately  available  funds, the lesser of (i)
the principal sum of AND NO/100  DOLLARS ($ ), and (ii) the unpaid amount of all
"Capital  Loans"  (referred to below),  together  with interest on the principal
balance  remaining  from time to time unpaid at the rate provided below from the
date such principal is advanced until payment in full thereof.  This Substituted
and  Amended  Capital  Note is  referred to in and was  executed  and  delivered
pursuant to Section 2.04 of that certain Loan and Security Agreement dated as of
September 8, 1995, as amended (as so amended and restated,  and further amended,
restated and  supplemented or modified from time to time, the "Loan  Agreement")
by and between the  Borrower and the Lender,  to which  reference is hereby made
for a  statement  of the terms and  conditions  under  which the  Capital  Loans
evidenced  hereby  are being  made and are to be  repaid.  All  terms  which are
capitalized  and used  herein  (which  are not  otherwise  specifically  defined
herein)  and  which  are  defined  in the Loan  Agreement  shall be used in this
Substituted and Amended Capital Note as defined in the Loan Agreement.

         The  principal  indebtedness  evidenced  hereby  shall  be  payable  in
twenty-eight (28) consecutive  quarterly  installments,  as set forth in Section
2.06(b) of the Loan Agreement.  The principal  amount hereof may be prepaid only
in accordance with the terms of the Loan Agreement.

         Borrower  further  promises to pay interest on the  outstanding  unpaid
principal  amount hereof which remains unpaid from the date hereof until payment
in full hereof at the rates described in the Loan Agreement,  payable  quarterly
in arrears on the Payment  Dates and subject to  capitalization  of the interest
payable  prior  to the  Commitment  Termination  Date  in  accordance  with  the
provisions of Section 2.06 of the Loan Agreement, and calculated on the basis of
a 360-day year comprised of twelve 30 day months, compounded monthly;  provided,
however,  that if the Borrower  shall default in the payment of the principal or
interest hereof, the Borrower promises to, on demand, pay interest on the entire
unpaid  principal  amount  hereof at a rate equal to four percent (4%) per annum
above the rate of interest  that would  otherwise be  applicable,  from the date
such  payment is due to the date of actual  payment,  and if any other  Event of
Default  occurs and is  continuing,  the Borrower  promises  to, on demand,  pay
interest on the entire  unpaid  principal  amount  hereof at a rate equal to two
percent  (2%) per annum  above the rate of  interest  that  would  otherwise  be
applicable, until such Event of Default is cured.

         If payment hereunder becomes due and payable on a Saturday,  Sunday, or
legal holiday,  under the laws of the State of New Jersey,  the due date thereof
shall be extended to the next  succeeding  Business  Day, and interest  shall be
payable  thereon  during such  extension at the rate  specified  above.  Checks,
drafts or similar items of payment  received by the Lender shall not  constitute
payment, but


<PAGE>



credit  therefor shall,  solely for the purpose of computing  interest earned by
the Lender, be given on the date the same is honored by the Lender's  depository
bank and final  settlement  thereof is  reflected by  irrevocable  credit to the
Lender's  account in such bank.  In no  contingency  or event  whatsoever  shall
interest  charged  hereunder,  however  such  interest may be  characterized  or
computed,  exceed the highest  rate  permissible  under any law which a court of
competent jurisdiction shall, in a final determination,  deem applicable hereto.
In the event that such a court determines that the Lender has received  interest
hereunder  in excess of the highest  rate  applicable  hereto,  the Lender shall
promptly refund such excess interest to Borrower.

         The  unpaid  balance of the  indebtedness  hitherto  evidenced  by that
certain Capital Note dated September 29, 1995 in the original  principal  amount
of  $4,125,000  (the "Former  Note") made by the  Borrower and  delivered to the
Lender  remains  outstanding  as of the date  hereof  and shall  continue  to be
secured  pursuant to the terms of the Loan Documents.  The principal  balance of
this  Substituted  and Amended Capital Note includes the  indebtedness  hitherto
evidenced by the Former Note and to the extent such  indebtedness is included in
the  principal  balance  of this  Substituted  and  Amended  Capital  Note,  the
Substituted  and Amended Capital Note (i) merely  reevidences  the  indebtedness
hitherto  evidenced by the Former Note, (ii) is given in  substitution  for, and
not as payment of the Former Note, and (iii) is in no way intended to constitute
a novation of the Former Note.

         Except as otherwise agreed in the Loan Agreement,  payments received by
the Lender from the Borrower on this  Substituted and Amended Capital Note shall
be applied  first to the payment of  interest  which is due and payable and only
thereafter to the outstanding principal balance.

         Presentment,  protest and notice of nonpayment are hereby waived by the
Borrower.

         This  Substituted and Amended Capital Note shall be interpreted and the
rights and  liabilities of the parties hereto  determined in accordance with the
internal laws (as opposed to conflicts of law  provisions)  and decisions of the
State of New Jersey.  Whenever  possible each provision of this  Substituted and
Amended  Capital Note shall be interpreted in such manner as to be effective and
valid under applicable law, but if any provision of this Substituted and Amended
Capital  Note shall be  prohibited  by or invalid  under  applicable  law,  such
provision shall be ineffective to the extent of such  prohibition or invalidity,
without invalidating the remainder of such provision or the remaining provisions
of this  Substituted and Amended Capital Note.  Whenever in this Substituted and
Amended Capital Note reference is made to the Lender or Borrower, such reference
is made to include,  as applicable,  a reference to their respective  successors
and assigns.  The provisions of this  Substituted and Amended Capital Note shall
be  binding  upon and  inure to the  benefit  of said  successors  and  assigns.
Borrower's successors and assigns shall include, without limitation, a receiver,
trustee or debtor in possession of or for the Borrower.

                                                 AMERICAN COMMUNICATION SERVICES
                                                              OF EL PASO, INC.

                                                 By:
                                                 Its:




<PAGE>



                      SUBSTITUTED AND AMENDED CAPITAL NOTE

$5,216,242.00                                             Morristown, New Jersey
                                                               September 6, 1996

         FOR VALUE RECEIVED, the undersigned, AMERICAN COMMUNICATION SERVICES OF
LOUISVILLE,   INC.,   a   Delaware   corporation   (the   "Borrower"),    hereby
unconditionally  promises  to pay to the  order of AT&T  CREDIT  CORPORATION,  a
Delaware  corporation  (the  "Lender"),  at  its  office  at 44  Whippany  Road,
Morristown,  New Jersey 07962-1983, or at such other place as the holder of this
Substituted and Amended Capital Note may from time to time designate in writing,
in lawful  money of the United  States of America and in  immediately  available
funds,  the lesser of (i) the principal sum of FIVE MILLION TWO HUNDRED  SIXTEEN
THOUSAND TWO HUNDRED FORTY-TWO AND NO/100 DOLLARS ($5,216,242.00),  and (ii) the
unpaid amount of all "Capital Loans" (referred to below), together with interest
on the principal balance remaining from time to time unpaid at the rate provided
below from the date such  principal is advanced  until  payment in full thereof.
This Substituted and Amended Capital Note is referred to in and was executed and
delivered  pursuant to Section 2.04 of that certain Loan and Security  Agreement
dated as of October  17,  1994,  as amended  (as so amended  and  restated,  and
further  amended,  restated and  supplemented or modified from time to time, the
"Loan  Agreement")  by and  between  the  Borrower  and the  Lender  (the  "Loan
Agreement"),  to which reference is hereby made for a statement of the terms and
conditions under which the Capital Loans evidenced hereby are being made and are
to be repaid.  All terms which are  capitalized  and used herein  (which are not
otherwise  specifically  defined  herein)  and  which  are  defined  in the Loan
Agreement shall be used in this  Substituted and Amended Capital Note as defined
in the Loan Agreement.

         The  principal  indebtedness  evidenced  hereby  shall  be  payable  in
twenty-eight (28) consecutive  quarterly  installments,  as set forth in Section
2.06(b) of the Loan Agreement.  The principal  amount hereof may be prepaid only
in accordance with the terms of the Loan Agreement.

         Borrower  further  promises to pay interest on the  outstanding  unpaid
principal  amount hereof which remains unpaid from the date hereof until payment
in full hereof at the rates described in the Loan Agreement,  payable  quarterly
in arrears on the Payment  Dates and subject to  capitalization  of the interest
payable  prior  to the  Commitment  Termination  Date  in  accordance  with  the
provisions of Section 2.06 of the Loan Agreement, and calculated on the basis of
a 360-day year comprised of twelve 30 day months, compounded monthly;  provided,
however,  that if the Borrower  shall default in the payment of the principal or
interest hereof, the Borrower promises to, on demand, pay interest on the entire
unpaid  principal  amount  hereof at a rate equal to four percent (4%) per annum
above the rate of interest  that would  otherwise be  applicable,  from the date
such  payment is due to the date of actual  payment,  and if any other  Event of
Default  occurs and is  continuing,  the Borrower  promises  to, on demand,  pay
interest on the entire  unpaid  principal  amount  hereof at a rate equal to two
percent  (2%) per annum  above the rate of  interest  that  would  otherwise  be
applicable, until such Event of Default is cured.

         If payment hereunder becomes due and payable on a Saturday,  Sunday, or
legal holiday,  under the laws of the State of New Jersey,  the due date thereof
shall be extended to the next  succeeding  Business  Day, and interest  shall be
payable  thereon  during such  extension at the rate  specified  above.  Checks,
drafts or similar items of payment  received by the Lender shall not  constitute
payment, but credit therefor shall, solely for the purpose of computing interest
earned by the Lender, be given on the


<PAGE>



date the same is honored by the Lender's  depository  bank and final  settlement
thereof is reflected by irrevocable credit to the Lender's account in such bank.
In no contingency or event whatsoever shall interest charged hereunder,  however
such  interest  may be  characterized  or  computed,  exceed  the  highest  rate
permissible  under any law which a court of competent  jurisdiction  shall, in a
final  determination,  deem  applicable  hereto.  In the event that such a court
determines  that the Lender has  received  interest  hereunder  in excess of the
highest rate  applicable  hereto,  the Lender shall promptly  refund such excess
interest to Borrower.

         The  unpaid  balance of the  indebtedness  hitherto  evidenced  by that
certain Capital Note dated October 17, 1994 in the original  principal amount of
$2,214,000  (the "Former Note") made by the Borrower and delivered to the Lender
remains  outstanding  as of the date  hereof  and shall  continue  to be secured
pursuant  to the terms of the Loan  Documents.  The  principal  balance  of this
Substituted  and  Amended  Capital  Note  includes  the  indebtedness   hitherto
evidenced by the Former Note and to the extent such  indebtedness is included in
the  principal  balance  of this  Substituted  and  Amended  Capital  Note,  the
Substituted  and Amended Capital Note (i) merely  reevidences  the  indebtedness
hitherto  evidenced by the Former Note, (ii) is given in  substitution  for, and
not as payment of the Former Note, and (iii) is in no way intended to constitute
a novation of the Former Note.

         Except as otherwise agreed in the Loan Agreement,  payments received by
the Lender from the Borrower on this  Substituted and Amended Capital Note shall
be applied  first to the payment of  interest  which is due and payable and only
thereafter to the outstanding principal balance.

         Presentment,  protest and notice of nonpayment are hereby waived by the
Borrower.

         This  Substituted and Amended Capital Note shall be interpreted and the
rights and  liabilities of the parties hereto  determined in accordance with the
internal laws (as opposed to conflicts of law  provisions)  and decisions of the
State of New Jersey.  Whenever  possible each provision of this  Substituted and
Amended  Capital Note shall be interpreted in such manner as to be effective and
valid under applicable law, but if any provision of this Substituted and Amended
Capital  Note shall be  prohibited  by or invalid  under  applicable  law,  such
provision shall be ineffective to the extent of such  prohibition or invalidity,
without invalidating the remainder of such provision or the remaining provisions
of this  Substituted and Amended Capital Note.  Whenever in this Substituted and
Amended Capital Note reference is made to the Lender or Borrower, such reference
is made to include,  as applicable,  a reference to their respective  successors
and assigns.  The provisions of this  Substituted and Amended Capital Note shall
be  binding  upon and  inure to the  benefit  of said  successors  and  assigns.
Borrower's successors and assigns shall include, without limitation, a receiver,
trustee or debtor in possession of or for the Borrower.

                                                 AMERICAN COMMUNICATION SERVICES
                                                            OF LOUISVILLE, INC.

                                                 /s/ RICHARD A. KOZAK
                                                 Its: President & CEO




<PAGE>



                      SUBSTITUTED AND AMENDED CAPITAL NOTE


$6,665,024.00                                                  September 6, 1996

         FOR VALUE RECEIVED, the undersigned, AMERICAN COMMUNICATION SERVICES OF
FORT   WORTH,   INC.,   a  Delaware   corporation   (the   "Borrower"),   hereby
unconditionally  promises  to pay to the  order of AT&T  CREDIT  CORPORATION,  a
Delaware  corporation  (the  "Lender"),  at  its  office  at 44  Whippany  Road,
Morristown,  New Jersey 07962-1983, or at such other place as the holder of this
Substituted and Amended Capital Note may from time to time designate in writing,
in lawful  money of the United  States of America and in  immediately  available
funds, the lesser of (i) the principal sum of SIX MILLION SIX HUNDRED SIXTY-FIVE
THOUSAND  TWENTY-FOUR  AND NO/100 DOLLARS  ($6,665,024.00),  and (ii) the unpaid
amount of all "Capital Loans" (referred to below), together with interest on the
principal  balance remaining from time to time unpaid at the rate provided below
from the date such  principal is advanced  until payment in full  thereof.  This
Substituted  and Amended  Capital  Note is referred to in and was  executed  and
delivered  pursuant to Section 2.04 of that certain Loan and Security  Agreement
dated as of February  28,  1995,  as amended (as so amended  and  restated,  and
further  amended,  restated and  supplemented or modified from time to time, the
"Loan  Agreement")  by and  between  the  Borrower  and the  Lender  (the  "Loan
Agreement"),  to which reference is hereby made for a statement of the terms and
conditions under which the Capital Loans evidenced hereby are being made and are
to be repaid.  All terms which are  capitalized  and used herein  (which are not
otherwise  specifically  defined  herein)  and  which  are  defined  in the Loan
Agreement shall be used in this  Substituted and Amended Capital Note as defined
in the Loan Agreement.

         The  principal  indebtedness  evidenced  hereby  shall  be  payable  in
twenty-eight (28) consecutive  quarterly  installments,  as set forth in Section
2.06(b) of the Loan Agreement.  The principal  amount hereof may be prepaid only
in accordance with the terms of the Loan Agreement.

         Borrower  further  promises to pay interest on the  outstanding  unpaid
principal  amount hereof which remains unpaid from the date hereof until payment
in full hereof at the rates described in the Loan Agreement,  payable  quarterly
in arrears on the Payment  Dates and subject to  capitalization  of the interest
payable  prior  to the  Commitment  Termination  Date  in  accordance  with  the
provisions of Section 2.06 of the Loan Agreement, and calculated on the basis of
a 360-day year comprised of twelve 30 day months, compounded monthly;  provided,
however,  that if the Borrower  shall default in the payment of the principal or
interest hereof, the Borrower promises to, on demand, pay interest on the entire
unpaid  principal  amount  hereof at a rate equal to four percent (4%) per annum
above the rate of interest  that would  otherwise be  applicable,  from the date
such  payment is due to the date of actual  payment,  and if any other  Event of
Default  occurs and is  continuing,  the Borrower  promises  to, on demand,  pay
interest on the entire  unpaid  principal  amount  hereof at a rate equal to two
percent  (2%) per annum  above the rate of  interest  that  would  otherwise  be
applicable, until such Event of Default is cured.

         If payment hereunder becomes due and payable on a Saturday,  Sunday, or
legal holiday,  under the laws of the State of New Jersey,  the due date thereof
shall be extended to the next  succeeding  Business  Day, and interest  shall be
payable  thereon  during such  extension at the rate  specified  above.  Checks,
drafts or similar items of payment  received by the Lender shall not  constitute
payment, but credit therefor shall, solely for the purpose of computing interest
earned by the Lender, be given on the


<PAGE>



date the same is honored by the Lender's  depository  bank and final  settlement
thereof is reflected by irrevocable credit to the Lender's account in such bank.
In no contingency or event whatsoever shall interest charged hereunder,  however
such  interest  may be  characterized  or  computed,  exceed  the  highest  rate
permissible  under any law which a court of competent  jurisdiction  shall, in a
final  determination,  deem  applicable  hereto.  In the event that such a court
determines  that the Lender has  received  interest  hereunder  in excess of the
highest rate  applicable  hereto,  the Lender shall promptly  refund such excess
interest to Borrower.

         The  unpaid  balance of the  indebtedness  hitherto  evidenced  by that
certain  Capital  Note  dated May 1, 1995 in the  original  principal  amount of
$2,970,000  (the "Former Note") made by the Borrower and delivered to the Lender
remains  outstanding  as of the date  hereof  and shall  continue  to be secured
pursuant  to the terms of the Loan  Documents.  The  principal  balance  of this
Substituted  and  Amended  Capital  Note  includes  the  indebtedness   hitherto
evidenced by the Former Note and to the extent such  indebtedness is included in
the  principal  balance  of this  Substituted  and  Amended  Capital  Note,  the
Substituted  and Amended Capital Note (i) merely  reevidences  the  indebtedness
hitherto  evidenced by the Former Note, (ii) is given in  substitution  for, and
not as payment of the Former Note, and (iii) is in no way intended to constitute
a novation of the Former Note.

         Except as otherwise agreed in the Loan Agreement,  payments received by
the Lender from the Borrower on this  Substituted and Amended Capital Note shall
be applied  first to the payment of  interest  which is due and payable and only
thereafter to the outstanding principal balance.

         Presentment, protest and notice of nonpayment are hereby--waived by the
Borrower.

         This  Substituted and Amended Capital Note shall be interpreted and the
rights and  liabilities of the parties hereto  determined in accordance with the
internal laws (as opposed to conflicts of law  provisions)  and decisions of the
State of New Jersey.  Whenever  possible each provision of this  Substituted and
Amended  Capital Note shall be interpreted in such manner as to be effective and
valid under applicable law, but if any provision of this Substituted and Amended
Capital  Note shall be  prohibited  by or invalid  under  applicable  law,  such
provision shall be ineffective to the extent of such  prohibition or invalidity,
without invalidating the remainder of such provision or the remaining provisions
of this  Substituted and Amended Capital Note.  Whenever in this Substituted and
Amended Capital Note reference is made to the Lender or Borrower, such reference
is made to include,  as applicable,  a reference to their respective  successors
and assigns.  The provisions of this  Substituted and Amended Capital Note shall
be  binding  upon and  inure to the  benefit  of said  successors  and  assigns.
Borrower's successors and assigns shall include, without limitation, a receiver,
trustee or debtor in possession of or for the Borrower.

                                                 AMERICAN COMMUNICATION SERVICES
                                                             OF FORT WORTH, INC.

                                                 /s/ RICHARD A. KOZAK
                                                 Its: President & CEO





<PAGE>



                      SUBSTITUTED AND AMENDED CAPITAL NOTE

$6,101,357.00                                                  September 6, 1996

         FOR VALUE RECEIVED, the undersigned, AMERICAN COMMUNICATION SERVICES OF
COLUMBIA, INC., a Delaware corporation (the "Borrower"),  hereby unconditionally
promises to pay to the order of AT&T CREDIT CORPORATION,  a Delaware corporation
(the "Lender"), at its office at 44 Whippany Road, Morristown, New Jersey 07962-
1983,  or at such other  place as the  holder of this  Substituted  and  Amended
Capital Note may from time to time designate in writing,  in lawful money of the
United States of America and in immediately  available  funds, the lesser of (i)
the  principal  sum of SIX  MILLION  ONE  HUNDRED  ONE  THOUSAND  THREE  HUNDRED
FIFTY-SEVEN  AND NO/100 DOLLARS  ($6,101,357.00),  and (ii) the unpaid amount of
all "Capital Loans" (referred to below), together with interest on the principal
balance  remaining  from time to time unpaid at the rate provided below from the
date such principal is advanced until payment in full thereof.  This Substituted
and  Amended  Capital  Note is  referred to in and was  executed  and  delivered
pursuant to Section 2.04 of that certain Loan and Security Agreement dated as of
June 30,  1995,  as amended (as so amended and  restated,  and further  amended,
restated and  supplemented or modified from time to time, the "Loan  Agreement")
by and among the Borrower, American Communication Services of Greenville,  Inc.,
and the Lender (the "Loan  Agreement"),  to which reference is hereby made for a
statement of the terms and  conditions  under which the Capital Loans  evidenced
hereby are being made and are to be repaid.  All terms which are capitalized and
used herein (which are not otherwise  specifically defined herein) and which are
defined in the Loan  Agreement  shall be used in this  Substituted  and  Amended
Capital Note as defined in the Loan Agreement.

         The  principal  indebtedness  evidenced  hereby  shall  be  payable  in
twenty-eight (28) consecutive  quarterly  installments,  as set forth in Section
2.06(b) of the Loan Agreement.  The principal  amount hereof may be prepaid only
in accordance with the terms of the Loan Agreement.

         Borrower  further  promises to pay interest on the  outstanding  unpaid
principal  amount hereof which remains unpaid from the date hereof until payment
in full hereof at the rates described in the Loan Agreement,  payable  quarterly
in arrears on the Payment  Dates and subject to  capitalization  of the interest
payable  prior  to the  Commitment  Termination  Date  in  accordance  with  the
provisions of Section 2.06 of the Loan Agreement, and calculated on the basis of
a 360-day year comprised of twelve 30 day months, compounded monthly;  provided,
however,  that if the Borrower  shall default in the payment of the principal or
interest hereof, the Borrower promises to, on demand, pay interest on the entire
unpaid  principal  amount  hereof at a rate equal to four percent (4%) per annum
above the rate of interest  that would  otherwise be  applicable,  from the date
such  payment is due to the date of actual  payment,  and if any other  Event of
Default  occurs and is  continuing,  the Borrower  promises  to, on demand,  pay
interest on the entire  unpaid  principal  amount  hereof at a rate equal to two
percent  (2%) per annum  above the rate of  interest  that  would  otherwise  be
applicable, until such Event of Default is cured.

         If payment hereunder becomes due and payable on a Saturday,  Sunday, or
legal holiday,  under the laws of the State of New Jersey,  the due date thereof
shall be extended to the next  succeeding  Business  Day, and interest  shall be
payable  thereon  during such  extension at the rate  specified  above.  Checks,
drafts or similar items of payment  received by the Lender shall not  constitute
payment, but credit therefor shall, solely for the purpose of computing interest
earned by the Lender, be given on the


<PAGE>



date the same is honored by the Lender's  depository  bank and final  settlement
thereof is reflected by irrevocable credit to the Lender's account in such bank.
In no contingency or event whatsoever shall interest charged hereunder,  however
such  interest  may be  characterized  or  computed,  exceed  the  highest  rate
permissible  under any law which a court of competent  jurisdiction  shall, in a
final  determination,  deem  applicable  hereto.  In the event that such a court
determines  that the Lender has  received  interest  hereunder  in excess of the
highest rate  applicable  hereto,  the Lender shall promptly  refund such excess
interest to Borrower.

         The  unpaid  balance of the  indebtedness  hitherto  evidenced  by that
certain  Capital Note dated July 21, 1995 in the original  amount of  $2,700,000
(the "Former  Note") made by the Borrower  and  delivered to the Lender  remains
outstanding as of the date hereof and shall  continue to be secured  pursuant to
the terms of the Loan Documents.  The principal  balance of this Substituted and
Amended Capital Note includes the indebtedness  hitherto evidenced by the Former
Note and to the extent such indebtedness is included in the principal balance of
this  Substituted  and Amended Capital Note, the Substituted and Amended Capital
Note (i) merely  reevidences the indebtedness  hitherto  evidenced by the Former
Note, (ii) is given in substitution  for, and not as payment of the Former Note,
and (iii) is in no way intended to constitute a novation of the Former Note.

         Except as otherwise agreed in the Loan Agreement,  payments received by
the Lender from the Borrower on this  Substituted and Amended Capital Note shall
be applied  first to the payment of  interest  which is due and payable and only
thereafter to the outstanding principal balance.

         Presentment,  protest and notice of nonpayment are hereby waived by the
Borrower.

         This  Substituted and Amended Capital Note shall be interpreted and the
rights and  liabilities of the parties hereto  determined in accordance with the
internal laws (as opposed to conflicts of law  provisions)  and decisions of the
State of New Jersey.  Whenever  possible each provision of this  Substituted and
Amended  Capital Note shall be interpreted in such manner as to be effective and
valid under applicable law, but if any provision of this Substituted and Amended
Capital  Note shall be  prohibited  by or invalid  under  applicable  law,  such
provision shall be ineffective to the extent of such  prohibition or invalidity,
without invalidating the remainder of such provision or the remaining provisions
of this Substituted and Amended Capital Note.

         Whenever in this Substituted and Amended Capital Note reference is made
to the Lender or Borrower,  such reference is made to include, as applicable,  a
reference to their  respective  successors  and assigns.  The provisions of this
Substituted  and  Amended  Capital  Note shall be binding  upon and inure to the
benefit of said successors and assigns.  Borrower's successors and assigns shall
include, without limitation,  a receiver,  trustee or debtor in possession of or
for the Borrower.

                                                 AMERICAN COMMUNICATION SERVICES
                                                               OF COLUMBIA, INC.


                                                 /s/ RICHARD A. KOZAK
                                                 Its: President & CEO



<PAGE>



                      SUBSTITUTED AND AMENDED CAPITAL NOTE


$4,680,000.00                                                  September 6, 1996
         FOR VALUE RECEIVED, the undersigned, AMERICAN COMMUNICATION SERVICES OF
GREENVILLE,   INC.,   a   Delaware   corporation   (the   "Borrower"),    hereby
unconditionally  promises  to pay to the  order of AT&T  CREDIT  CORPORATION,  a
Delaware  corporation  (the  "Lender"),  at  its  office  at 44  Whippany  Road,
Morristown,  New Jersey 07962-1983, or at such other place as the holder of this
Substituted and Amended Capital Note may from time to time designate in writing,
in lawful  money of the United  States of America and in  immediately  available
funds,  the lesser of (i) the principal  sum of FOUR MILLION SIX HUNDRED  EIGHTY
THOUSAND AND NO/100 DOLLARS  ($4,680,000.00),  and (ii) the unpaid amount of all
"Capital  Loans"  (referred to below),  together  with interest on the principal
balance  remaining  from time to time unpaid at the rate provided below from the
date such principal is advanced until payment in full thereof.  This Substituted
and  Amended  Capital  Note is  referred to in and was  executed  and  delivered
pursuant to Section 2.04 of that certain Loan and Security Agreement dated as of
June 30,  1995,  as amended (as so amended and  restated,  and further  amended,
restated and  supplemented or modified from time to time, the "Loan  Agreement")
by and among the Borrower,  American Communication  Services of Columbia,  Inc.,
and the Lender (the "Loan  Agreement"),  to which reference is hereby made for a
statement of the terms and  conditions  under which the Capital Loans  evidenced
hereby are being made and are to be repaid.  All terms which are capitalized and
used herein (which are not otherwise  specifically defined herein) and which are
defined in the Loan  Agreement  shall be used in this  Substituted  and  Amended
Capital Note as defined in the Loan Agreement.

         The  principal  indebtedness  evidenced  hereby  shall  be  payable  in
twenty-eight (28) consecutive  quarterly  installments,  as set forth in Section
2.06(b) of the Loan Agreement.  The principal  amount hereof may be prepaid only
in accordance with the terms of the Loan Agreement.

         Borrower  further  promises to pay interest on the  outstanding  unpaid
principal  amount hereof which remains unpaid from the date hereof until payment
in full hereof at the rates described in the Loan Agreement,  payable  quarterly
in arrears on the Payment  Dates and subject to  capitalization  of the interest
payable  prior  to the  Commitment  Termination  Date  in  accordance  with  the
provisions of Section 2.06 of the Loan Agreement, and calculated on the basis of
a 360-day year comprised of twelve 30 day months, compounded monthly;  provided,
however,  that if the Borrower  shall default in the payment of the principal or
interest hereof, the Borrower promises to, on demand, pay interest on the entire
unpaid  principal  amount  hereof at a rate equal to four percent (4%) per annum
above the rate of interest  that would  otherwise be  applicable,  from the date
such  payment is due to the date of actual  payment,  and if any other  Event of
Default  occurs and is  continuing,  the Borrower  promises  to, on demand,  pay
interest on the entire  unpaid  principal  amount  hereof at a rate equal to two
percent  (2%) per annum  above the rate of  interest  that  would  otherwise  be
applicable, until such Event of Default is cured.

         If payment hereunder becomes due and payable on a Saturday,  Sunday, or
legal holiday,  under the laws of the State of New Jersey,  the due date thereof
shall be extended to the next  succeeding  Business  Day, and interest  shall be
payable  thereon  during such  extension at the rate  specified  above.  Checks,
drafts or similar items of payment  received by the Lender shall not  constitute
payment, but


<PAGE>



credit  therefor shall,  solely for the purpose of computing  interest earned by
the Lender, be given on the date the same is honored by the Lender's  depository
bank and final  settlement  thereof is  reflected by  irrevocable  credit to the
Lender's  account in such bank.  In no  contingency  or event  whatsoever  shall
interest  charged  hereunder,  however  such  interest may be  characterized  or
computed,  exceed the highest  rate  permissible  under any law which a court of
competent jurisdiction shall, in a final determination,  deem applicable hereto.
In the event that such a court determines that the Lender has received  interest
hereunder  in excess of the highest  rate  applicable  hereto,  the Lender shall
promptly refund such excess interest to Borrower.

         The  unpaid  balance of the  indebtedness  hitherto  evidenced  by that
certain  Capital Note dated July 21, 1995 in the original  amount of  $2,808,000
(the "Former  Note") made by the Borrower  and  delivered to the Lender  remains
outstanding as of the date hereof and shall  continue to be secured  pursuant to
the terms of the Loan Documents.  The principal  balance of this Substituted and
Amended Capital Note includes the indebtedness  hitherto evidenced by the Former
Note and to the extent such indebtedness is included in the principal balance of
this  Substituted  and Amended Capital Note, the Substituted and Amended Capital
Note (i) merely  reevidences the indebtedness  hitherto  evidenced by the Former
Note, (ii) is given in substitution  for, and not as payment of the Former Note,
and (iii) is in no way intended to constitute a novation of the Former Note.

         Except as otherwise agreed in the Loan Agreement,  payments received by
the Lender from the Borrower on this  Substituted and Amended Capital Note shall
be applied  first to the payment of  interest  which is due and payable and only
thereafter to the outstanding principal balance.

         Presentment,  protest and notice of nonpayment are hereby waived by the
Borrower.

         This  Substituted and Amended Capital Note shall be interpreted and the
rights and  liabilities of the parties hereto  determined in accordance with the
internal laws (as opposed to conflicts of law  provisions)  and decisions of the
State of New Jersey.  Whenever  possible each provision of this  Substituted and
Amended  Capital Note shall be interpreted in such manner as to be effective and
valid under applicable law, but if any provision of this Substituted and Amended
Capital  Note shall be  prohibited  by or invalid  under  applicable  law,  such
provision shall be ineffective to the extent of such  prohibition or invalidity,
without invalidating the remainder of such provision or the remaining provisions
of this  Substituted and Amended Capital Note.  Whenever in this Substituted and
Amended Capital Note reference is made to the Lender or Borrower, such reference
is made to include,  as applicable,  a reference to their respective  successors
and assigns.  The provisions of this  Substituted and Amended Capital Note shall
be  binding  upon and  inure to the  benefit  of said  successors  and  assigns.
Borrower's successors and assigns shall include, without limitation, a receiver,
trustee or debtor in possession of or for the Borrower.

                                                 AMERICAN COMMUNICATION SERVICES
                                                             OF GREENVILLE, INC.

                                                 /s/ RICHARD A. KOZAK
                                                 Its: President & CEO




<PAGE>



                      SUBSTITUTED AND AMENDED CAPITAL NOTE


$5,529,387.00                                                  September 6, 1996

         FOR VALUE RECEIVED, the undersigned, AMERICAN COMMUNICATION SERVICES OF
EL PASO, INC., a Delaware corporation (the "Borrower"),  hereby  unconditionally
promises to pay to the order of AT&T CREDIT CORPORATION,  a Delaware corporation
(the  "Lender"),  at its  office at 44  Whippany  Road,  Morristown,  New Jersey
07962-1983, or at such other place as the holder of this Substituted and Amended
Capital Note may from time to time designate in writing,  in lawful money of the
United States of America and in immediately  available  funds, the lesser of (i)
the  principal  sum of FIVE  MILLION  FIVE HUNDRED  TWENTY-NINE  THOUSAND  THREE
HUNDRED  EIGHTY-SEVEN  AND NO/100 DOLLARS  ($5,529,387.00),  and (ii) the unpaid
amount of all "Capital Loans" (referred to below), together with interest on the
principal  balance remaining from time to time unpaid at the rate provided below
from the date such  principal is advanced  until payment in full  thereof.  This
Substituted  and Amended  Capital  Note is referred to in and was  executed  and
delivered  pursuant to Section 2.04 of that certain Loan and Security  Agreement
dated as of  September  8, 1995,  as amended  (as so amended and  restated,  and
further  amended,  restated and  supplemented or modified from time to time, the
"Loan Agreement") by and between the Borrower and the Lender, to which reference
is hereby  made for a  statement  of the terms and  conditions  under  which the
Capital Loans  evidenced  hereby are being made and are to be repaid.  All terms
which are  capitalized  and used herein  (which are not  otherwise  specifically
defined  herein)  and which are defined in the Loan  Agreement  shall be used in
this Substituted and Amended Capital Note as defined in the Loan Agreement.

         The  principal  indebtedness  evidenced  hereby  shall  be  payable  in
twenty-eight (28) consecutive  quarterly  installments,  as set forth in Section
2.06(b) of the Loan Agreement.  The principal  amount hereof may be prepaid only
in accordance with the terms of the Loan Agreement.

         Borrower  further  promises to pay interest on the  outstanding  unpaid
principal  amount hereof which remains unpaid from the date hereof until payment
in full hereof at the rates described in the Loan Agreement,  payable  quarterly
in arrears on the Payment  Dates and subject to  capitalization  of the interest
payable  prior  to the  Commitment  Termination  Date  in  accordance  with  the
provisions of Section 2.06 of the Loan Agreement, and calculated on the basis of
a 360-day year comprised of twelve 30 day months, compounded monthly;  provided,
however,  that if the Borrower  shall default in the payment of the principal or
interest hereof, the Borrower promises to, on demand, pay interest on the entire
unpaid  principal  amount  hereof at a rate equal to four percent (4%) per annum
above the rate of interest  that would  otherwise be  applicable,  from the date
such  payment is due to the date of actual  payment,  and if any other  Event of
Default  occurs and is  continuing,  the Borrower  promises  to, on demand,  pay
interest on the entire  unpaid  principal  amount  hereof at a rate equal to two
percent  (2%) per annum  above the rate of  interest  that  would  otherwise  be
applicable, until such Event of Default is cured.

         If payment hereunder becomes due and payable on a Saturday,  Sunday, or
legal holiday,  under the laws of the State of New Jersey,  the due date thereof
shall be extended to the next  succeeding  Business  Day, and interest  shall be
payable  thereon  during such  extension at the rate  specified  above.  Checks,
drafts or similar items of payment  received by the Lender shall not  constitute
payment, but credit therefor shall, solely for the purpose of computing interest
earned by the Lender, be given on the


<PAGE>



date the same is honored by the Lender's  depository  bank and final  settlement
thereof is reflected by irrevocable credit to the Lender's account in such bank.
In no contingency or event whatsoever shall interest charged hereunder,  however
such  interest  may be  characterized  or  computed,  exceed  the  highest  rate
permissible  under any law which a court of competent  jurisdiction  shall, in a
final  determination,  deem  applicable  hereto.  In the event that such a court
determines  that the Lender has  received  interest  hereunder  in excess of the
highest rate  applicable  hereto,  the Lender shall promptly  refund such excess
interest to Borrower.

         The  unpaid  balance of the  indebtedness  hitherto  evidenced  by that
certain Capital Note dated September 29, 1995 in the original  principal  amount
of  $4,125,000  (the "Former  Note") made by the  Borrower and  delivered to the
Lender  remains  outstanding  as of the date  hereof  and shall  continue  to be
secured  pursuant to the terms of the Loan Documents.  The principal  balance of
this  Substituted  and Amended Capital Note includes the  indebtedness  hitherto
evidenced by the Former Note and to the extent such  indebtedness is included in
the  principal  balance  of this  Substituted  and  Amended  Capital  Note,  the
Substituted  and Amended Capital Note (i) merely  reevidences  the  indebtedness
hitherto  evidenced by the Former Note, (ii) is given in  substitution  for, and
not as payment of the Former Note, and (iii) is in no way intended to constitute
a novation of the Former Note.

         Except as otherwise agreed in the Loan Agreement,  payments received by
the Lender from the Borrower on this  Substituted and Amended Capital Note shall
be applied  first to the payment of  interest  which is due and payable and only
thereafter to the outstanding principal balance.

         Presentment,  protest and notice of nonpayment are hereby waived by the
Borrower.

         This  Substituted and Amended Capital Note shall be interpreted and the
rights and  liabilities of the parties hereto  determined in accordance with the
internal laws (as opposed to conflicts of law  provisions)  and decisions of the
State of New Jersey.  Whenever  possible each provision of this  Substituted and
Amended  Capital Note shall be interpreted in such manner as to be effective and
valid under applicable law, but if any provision of this Substituted and Amended
Capital  Note shall be  prohibited  by or invalid  under  applicable  law,  such
provision shall be ineffective to the extent of such  prohibition or invalidity,
without invalidating the remainder of such provision or the remaining provisions
of this  Substituted and Amended Capital Note.  Whenever in this Substituted and
Amended Capital Note reference is made to the Lender or Borrower, such reference
is made to include,  as applicable,  a reference to their respective  successors
and assigns.  The provisions of this  Substituted and Amended Capital Note shall
be  binding  upon and  inure to the  benefit  of said  successors  and  assigns.
Borrower's successors and assigns shall include, without limitation, a receiver,
trustee or debtor in possession of or for the Borrower.

                                                 AMERICAN COMMUNICATION SERVICES
                                                               OF EL PASO, INC.

                                                           /s/ RICHARD A. KOZAK
                                                           Its: President & CEO







                                     SECOND
                             MASTER REAFFIRMATION OF
                      PARENT PLEDGE AND SUPPORT AGREEMENTS


                  This SECOND MASTER  REAFFIRMATION OF PARENT PLEDGE AND SUPPORT
AGREEMENTS (this  "Reaffirmation")  is executed as of this 6th day of September,
1996 by American  Communications  Services,  Inc., a Delaware  corporation  (the
"Parent"),  in  favor  of  AT&T  Credit  Corporation,   a  Delaware  corporation
("Lender").

                                   WITNESSETH

                  WHEREAS, American Communications Services of Louisville, Inc.,
American  Communication  Services of Fort Worth,  Inc.,  American  Communication
Services of Columbia,  Inc. and American  Communication  Services of Greenville,
Inc.,  and American  Communication  Services of El Paso,  Inc.  (each a Delaware
corporation), entered into those certain Loan and Security Agreements each dated
respectively  as of October  16,  1994,  February  28,  1995,  June 30, 1995 and
September  9, 1995,  as  amended  (collectively,  as so  amended  and as further
amended, restated or modified, the "Loan Agreements") with Lender;

                  WHEREAS,  to induce  Lender to enter into the Loan  Agreement,
Parent executed and delivered those certain Parent Pledge and Support Agreements
each  dated as of  October  16,  1994,  February  28,  1995,  June 30,  1995 and
September  9, 1995,  as  amended  (collectively,  as so  amended  and as further
amended, restated or modified, the "Pledge Agreements") in favor of the Lender;

                  WHEREAS,  the parties to the Loan Agreements are entering into
that certain Second Master Amendment to Loan and Security Agreements, Waiver and
Equipment Notes Modification  Agreement (the "Amendment") of even date herewith;
and

                  WHEREAS, it is a condition precedent to the effectiveness of
the Amendment that Parent execute and deliver this Reaffirmation;

                  NOW, THEREFORE,  for and in consideration of the foregoing and
for other good and valuable consideration,  the receipt and sufficiency of which
are hereby acknowledged, the Parent hereby agrees as follows:

                  1. Reaffirmation of Pledge Agreements. The Parent acknowledges
that it has  received  and reviewed the  Amendment  and  reaffirms  that (a) the
pledge of the "Pledged Stock" as defined in the respective Pledge Agreements and
the liens and security  interest  granted therein and (b) the Pledge  Agreements
and the liens and security interest granted therein shall continue in full force
and  effect in  accordance  with  their  respective  terms  notwithstanding  the
execution and delivery of the Amendment.

                  2.  Governing Law and Jurisdiction.  This Reaffirmation shall
be construed in accordance with and governed by the internal laws of the State
of New Jersey, without giving effect to any conflicts of laws principles.



<PAGE>



                  3.  Execution in Counterparts.  This Reaffirmation may be
executed in any number of counterparts, each of which shall be an original, but
all of which shall together constitute one and the same agreement.












                [THE REMAINDER OF THIS PAGE INTENTIONALLY BLANK]


<PAGE>



                  IN WITNESS  WHEREOF,  the  parties  hereto  have  caused  this
Reaffirmation to be duly executed by their duly authorized representatives as of
the day and year first written above.

                                     AMERICAN COMMUNICATIONS SERVICES, INC.

                                     By: /s/ RICHARD A. KOZAK
                                     Name: Richard A. Kozak
                                     Title: President & Chief Executive Officer






Acknowledged and agreed to as of the day and year first written above.

AT&T CREDIT CORPORATION

By: /s/ EDWARD W. ANDREWS, JR.
Name: Edward W. Andrews, Jr.
Title: President













































226889.01  GABBAY, ALAN M.  CH   September 30, 1996 (7:19AM)






                        MASTER EQUIPMENT LEASE AGREEMENT


LESSEE:  American Communications            LESSOR: AT&T Credit Corporation
                  Services, Inc.

Street Address:  131 National Business      Address:  44 Whippany Road
                     Parkway, Suite 100                Morristown, NJ 07962-1983


City, State, Zip:  Annapolis Junction,      Lease Number:  960823
                      Maryland 20701



                  1.  AGREEMENT.  Lessor  agrees to lease to Lessee  and  Lessee
agrees to lease from Lessor the equipment  (Equipment) described in any schedule
(Schedule) that incorporates  this Master Equipment Lease Agreement  (Agreement)
by  reference.  The  Equipment to be leased under the  Schedules  shall be up to
eight  Network  Systems 5ESS Systems  with total  purchase  prices not to exceed
$11,700,000  in the  aggregate,  subject to upward  adjustment  by Lessor in its
discretion.  A Schedule shall incorporate this Agreement by reference by listing
the above-referenced  Lease Number thereon.  Such lease shall be governed by the
terms and conditions of this  Agreement,  as well as by the terms and conditions
set  forth  in the  applicable  Schedule.  Each  Schedule  shall  constitute  an
agreement  separate and distinct from this Agreement and any other Schedule.  In
the event of a conflict between the provisions of this Agreement and a Schedule,
the provisions of the Schedule shall govern.

                  2. ASSIGNMENT OF PURCHASE  DOCUMENTS;  TRANSACTION  COSTS. (a)
Lessee  shall  execute  and  deliver  to Lessor a writing  acceptable  to Lessor
whereby Lessee:  (1) confirms Lessor's title to, and ownership of, the Equipment
described in the applicable  Schedule and (2) assigns all of Lessee's rights and
interest  in  and  to  any   purchase   order,   contract  or  other   documents
(collectively, Purchase Documents) relating thereto that Lessee has entered into
with Lucent Technologies Inc. (Seller) solely as such rights and interest relate
to such Equipment.  By executing the applicable Schedule,  Lessee represents and
warrants  (i) that  Lessee has  reviewed,  approved  and  received a copy of the
applicable  Purchase  Documents,  (ii) that  Lessee  may have  rights  under the
Purchase Documents and (iii) that Lessee may contact Seller for a description of
such rights.

                  (b) If any  funding  of the  purchase  price  of any  item  of
Equipment  occurs on any "Funding Date" (as defined in Section 4 below),  Lessor
will be  responsible  for and  provide  the  funds to pay  transaction  expenses
(Transaction Expenses), including the reasonable attorneys' fees and expenses of
counsel to Lessor and the Lessee and the fees and expenses of Lessee's financial
advisor,  solely to the extent that the Transaction Expenses do not exceed those
set forth in the  Pricing  Assumptions  on  Appendix A hereto.  Lessee  shall be
responsible for and provide the funds to pay  Transaction  Expenses in excess of
such amount and shall pay all Transaction Expenses if no funding of the purchase
price of items of  Equipment  occurs  prior to October 31, 1996 (other than as a
result of a breach of this  Agreement  by  Lessor) or if Lessee  decides  not to
proceed  with the  transactions  contemplated  herein  as a result  of any event
described in Section 4(iv) or 4(v).



<PAGE>


                                      - 2 -

                  3. DELIVERY;  ACCEPTANCE.  Lessee shall cause the Equipment to
be delivered to Lessee and installed at the Equipment  Location (as specified in
the  applicable  Schedule) and Lessee shall promptly  begin  acceptance  testing
pursuant  to agreed  upon test plans and  procedures  with  Seller to  determine
whether the Equipment  meets  acceptance  criteria.  Final  acceptance  shall be
deemed to occur upon the earliest of the following (Final  Acceptance Date): (i)
successful completion of acceptance testing; (ii) the end of the forty-fifth day
following  the date  installation  is  completed,  unless,  prior to such  date,
acceptance  testing has disclosed the existence of any material defect affecting
the ability of the  Equipment to perform as  warranted by Seller,  at which time
the testing period will be suspended,  with testing to resume upon correction of
the material  defect;  (iii)  Lessee's  failure to commence  acceptance  testing
within five working days after the date installation is completed; (iv) Lessee's
failure after commencement of acceptance testing to continue  acceptance testing
in accordance with the acceptance procedures agreed upon with the Seller; or (v)
Lessee's  written  acknowledgment  of acceptance of the  Equipment.  At Lessor's
option, if the Equipment has not been accepted within 180 days after delivery of
the Equipment to the Equipment  Location,  the Equipment shall be deemed to have
suffered  an "Event of Loss" (as  defined in Section  13  below).  Lessee  shall
evidence its final  acceptance of the  Equipment by executing and  delivering to
Lessor an acceptance certificate (Acceptance Certificate) in the form of Exhibit
D attached hereto, which shall establish Lessee's irrevocable acceptance of such
Equipment.

                  4. CONDITIONS PRECEDENT;  PURCHASE OF EQUIPMENT.  Lessor shall
have no obligation to purchase items of Equipment from Seller unless on the date
of the  execution  and  delivery  of the  Schedule  relating  thereto all of the
following  conditions shall be satisfied:  (i) no "Event of Default" (as defined
in Section 19) exists;  (ii) no event has occurred and is  continuing  that with
notice  or the  lapse of time or both  would  constitute  an  Event  of  Default
("Potential  Default");  (iii) on or prior to the date of the  execution  of the
initial  Schedule,  Lessee's  counsel has delivered to Lessor opinion letters in
form and  substance  satisfactory  to Lessor  with  respect to the  transactions
contemplated  herein;  (iv) on or  prior  to the  date of the  execution  of the
initial  Schedule,  no change in law shall have occurred that, in the reasonable
judgment  of Lessor or  Lessee  renders  the  transactions  contemplated  herein
uneconomic;   (v)  Lessor  shall  have   received   certificates   of  insurance
demonstrating  compliance by Lessee with the  requirements of Section 8; (vi) on
or prior to the date of the execution of the initial Schedule, Lessor shall have
received a certificate  of the  Secretary of the Lessee as to the  incumbency of
the  officers  of  the  Lessee,   the  due  authorization  of  the  transactions
contemplated by this Agreement,  and the accuracy of Lessee's by-laws, a copy of
which shall be attached thereto;  (vii) Lessee shall have executed and delivered
to Lessor appropriate  Uniform Commercial Code Financing  Statements to be filed
for precautionary purposes with respect to the Equipment Location; (viii) Lessee
shall  have  delivered  to  Lessor  landlord   waivers  in  form  and  substance
satisfactory to Lessor with respect to the Equipment Location; (ix) Seller shall
have consented in writing to the assignment of the Purchase Documents to Lessor;
(x)  Lessee  shall have  executed  and  delivered  to Lessor  the  Schedule  and
Commencement Certificate in the form of Exhibit C attached hereto ("Commencement
Certificate")  relating to the items of Equipment to be purchased by Lessor from
Seller,  which  Commencement  Certificate  shall be  dated  as of the date  such
Equipment is delivered by Seller to Lessee  (Commencement  Date); and (xi) on or
prior to the date of the execution of the initial Schedule, Seller shall execute
in favor of Lessee a Confirmation  Agreement in form and substance  satisfactory
to Lessee.  Upon satisfaction of all the conditions  precedent,  Lessor shall be
obligated to purchase the Equipment from Seller in accordance  with the terms of
the  Purchase  Documents,  including  the  payment  to  Seller  for each item of
Equipment,  of thirty-seven  and one-half  percent (37.5%) of the purchase price
thereof thirty days after shipment, thirty-seven and one-half percent (37.5%) of
the purchase price thereof thirty


<PAGE>


                                      - 3 -

days after the date installation  thereof is completed,  and twenty-five percent
(25%) of the purchase price thereof thirty days after the Final  Acceptance Date
(each of the  above  payment  dates  being a  "Funding  Date")  and to lease the
Equipment to Lessee.

                  5. TERM.  The initial  term of each  Schedule  (Initial  Term)
shall begin on the Commencement Date (regardless of whether the Final Acceptance
Date has occurred) and shall continue for the period specified in such Schedule.
Any renewal term of a Schedule  (Renewal Term) shall begin on the expiration of,
as  applicable,  the Initial Term or any preceding  Renewal Term  (collectively,
Term).  The then current Initial Term or the Renewal Term is sometimes  referred
to hereinafter as the Applicable Term.

                  6. RENT;  LATE  CHARGES.  Lessee shall pay Lessor the periodic
Rental  Payments  specified  in the  applicable  Schedule  quarterly  in arrears
beginning  three months after the applicable  Commencement  Date,  regardless of
whether  Lessee  has  received   notice  that  such  Rental  Payments  are  due.
Additionally,  if pursuant to this Agreement or the applicable Schedule the term
is  extended or a renewal  option  exercised,  Lessee  shall also pay all Rental
Payments  required  with respect  thereto.  All Rental  Payments will be sent to
Lessor's  above-referenced  address,  or to such other  address as  specified by
Lessor  in  writing.  The  Rental  Payments  are  based on the  methodology  and
assumptions  set forth in  Appendix  A (the  "Pricing  Assumptions")  subject to
adjustment  as set forth in Section 7. Lessee  agrees to pay Lessor  interest on
any Rental Payment (or other amount due  hereunder)  that is not paid within ten
days of its due  date at the rate of 1 1/2% per  month on any such  amounts  (or
such lesser rate as is the maximum rate allowable under  applicable  law). Also,
in the event that more than one Schedule is entered into hereunder,  the parties
will  use  their  best  efforts  to  implement  a  common  billing  date for all
Schedules.

                  7.  TAX INDEMNITY; ADJUSTMENTS.  (a)  This Agreement has been
entered into on the basis of the following Tax Assumptions:

         (1) the Federal rate of income tax on Lessor's  taxable  income will be
35% and the assumed  state tax rate on Lessor's  taxable  income will be 7% (the
"State Rate");

         (2) Lessor will have sufficient taxable income to utilize all
deductions arising hereunder;

         (3) Lessor  will be  entitled,  for  Federal  income tax  purposes,  to
depreciation deductions with respect to each item of Equipment,  computed on the
basis that the  Equipment  is "5-year  property"  within the  meaning of section
168(e) of the  Internal  Revenue  Code of 1986,  as amended and in effect on the
date hereof (the "Code") by using the 200% declining  balance method,  switching
to the straight-line  method for the first taxable year of Lessor for which such
method  yields a larger  allowance,  by assuming the salvage  value is zero,  by
using a 5-year  recovery  period and a half-year  convention,  and by assuming a
full first tax year ("Depreciation Deductions");

         (4) the initial tax basis of the Equipment for purposes of computing
Depreciation Deductions will be equal to the Total Purchase Prices thereof set
forth on the Schedules;



<PAGE>


                                      - 4 -

         (5) Lessor will be entitled to amortize the  Transaction  Expenses on a
straight-line  basis  over a period not longer  than the  initial  Terms for the
Schedules (the "Amortization Deductions");

         (6) at all times during any Applicable Term,  Lessor will be treated as
the owner and lessor of the Equipment for Federal and state income tax purposes,
Lessee, as the lessee thereof, and the lease as a "true lease";

         (7) Lessor  will be  entitled to claim  depreciation  and  amortization
deductions for state income tax purposes to the same extent and at the same time
as the Depreciation  Deductions and the Amortization Deductions are deducted for
Federal income tax purposes (the "State Tax Deductions");


         (8) Lessor will not at any time during any Applicable  Term be required
to include in its gross income for Federal,  state,  local or foreign income tax
purposes  any amounts  attributable  to the  Equipment or the  transactions  and
activities  contemplated by this Agreement other than: (i) Rental  Payments,  in
the  amounts  and at the  times  accrued  in  accordance  with the  terms of the
Schedules, (ii) Stipulated Loss Value or Termination Value, in each case reduced
as appropriate by Lessor's adjusted tax basis in the Equipment, (iii) any amount
to  the  extent  offset  by  deductions  (other  than  Depreciation  Deductions,
Amortization  Deductions or State Tax  Deductions)  of the same character in the
taxable year of Lessor in which such  amounts are  included in income,  (iv) any
amount paid by Lessee  pursuant to the  exercise of any  purchase  option to the
extent the amount exceeds Lessor's adjusted tax basis in the Equipment,  and (v)
any other amounts to the extent such amounts are  calculated so as to include an
indemnification  for taxes payable by Lessor as a consequence  of the receipt or
accrual  thereof  (the  inclusion  in  Lessor's  gross  income of any amount not
described in clauses (i) through (v) being hereinafter referred to as an "Income
Inclusion");

         (9) in each of  Lessor's  tax years  during any  Applicable  Term,  one
hundred percent of the aggregate income,  gain, loss and deductions with respect
to the  transactions  contemplated  by this Agreement will be treated as derived
from, or allocable to,  sources  within the United States of America  within the
meaning of section 861 of the Code; and

         (10) Lessor is an accrual basis calendar year taxpayer.


         (b)  Lessee represents and warrants that during the Applicable Term of
each Schedule:

         (1)  assuming  that  Lessor is and will remain the owner of, and is and
will remain in a trade or business with respect to, the Equipment, the Equipment
in the hands of Lessor,  after  delivery and  acceptance  under Section 3 of the
Agreement, will have been "placed in service" within the meaning of sections 167
and 168 of the Code and will not require  additions or  modifications to make it
suitable for its intended use;

         (2)  the initial tax basis of the Equipment for purposes of computing
Depreciation Deductions will be equal to the Total Purchase Prices thereof set
forth on the Schedules;



<PAGE>


                                      - 5 -

         (3) the factual  information about the Equipment provided in writing to
Lessor by Lessee or any officer, employee, agent, servant or affiliate of Lessee
was  accurate  upon  delivery  and on the  Commencement  Date  for  the  initial
Schedule;

         (4) on the applicable Funding Date, no member of the Lessee Group (as
defined in Revenue Procedure 75-21, 1975-1 C.B. 715, as modified by Revenue
Procedure 79-48, 1979-2 C.B. 529) of which Lessee is a member will have, nor
will it acquire at any time during any Applicable Term, any investment in any
item of Equipment within the meaning of Section 4(4) of Revenue Procedure 75-21,
1975-1 C.B. 715, as modified by Revenue Procedure 79-48, 1979-2 C.B. 529, that
is not permitted thereunder;

         (5) neither Lessee, any sublessee of any item of Equipment or any other
person  using  or  possessing  an  item of  Equipment,  including  any  trustee,
receiver,  liquidator,  or debtor in  possession  (other than the  Lessor,  or a
person  acting  through  the  Lessor)  or  any  affiliate,   transferee,  agent,
sublessee,  employee,  successor  or assign of any of the  forgoing  (a  "Lessee
Person")  will  claim  depreciation  deductions  as owner of the  Equipment  for
Federal and state income tax purposes  unless the Internal  Revenue  Service has
made a final  determination  that Lessor is not the owner of the  Equipment  for
Federal income tax purposes (except as to severable  modifications  not financed
by Lessor);

         (6) the  Equipment  will not  constitute  "tax-exempt  use property" as
defined  in section  168(h) of the Code  solely as a result of the status of (i)
Lessee or (ii) any assignee or sublessee of Lessee's  interest in the  Equipment
(other then Lessor,  any affiliate of Lessor,  or any person claiming use of any
item of Equipment by or through Lessor);

         (7) the Equipment  will not be utilized in foreign  service beyond that
which is permitted  under section 861(c) of the Code to meet one hundred percent
United States source requirements;

         (8) assuming  that Lessor is treated as the owner of the  Equipment for
Federal income tax purposes, such Equipment will qualify for 5-year Depreciation
Deductions;

         (9) the Equipment will not be "limited use property" (as defined in
Revenue Procedure 75-28, 1975-1 C.B. 752 and Revenue Procedure 76-30, 1976-2
C.B. 647), and no Lessee Person will make any improvement, modification, or
addition to any item of Equipment to cause such Equipment to become limited use
property;

         (10) no Lessee Person will use any item of Equipment in a way that will
cause the Equipment to be deemed used predominantly outside the United States of
America; and

         (11) no Lessee  Person  shall at any time  during any  Applicable  Term
either  abandon any item of  Equipment  or cease to use any item of Equipment in
its normal business activities (except during temporary periods of non-use which
are normal in Lessee's business).

         (c) (1) If as a result of (i) any act or omission (other than an act or
omission which is expressly  required by the terms of this Agreement),  (ii) the
failure of any Lessee Person to take any action required under the terms of this
Agreement (other than an omission which is expressly required by the terms of


<PAGE>


                                      - 6 -

this Agreement), (iii) the breach or inaccuracy of any representation,  covenant
or warranty  contained in Section 7(b), or (iv) any  replacement,  modification,
substitution  or  improvement  of  the  Equipment  whether  or not  required  or
permitted,  Lessor  shall  lose the  right to claim or shall  not  claim (as the
result of advice by independent tax counsel,  selected by Lessor,  to the effect
that  there is no  substantial  authority  (as  defined in  Treasury  Regulation
Section  1.6662-4(d)) for such claim),  shall suffer a disallowance of, or shall
be required to recapture,  all or any portion of any tax benefit with respect to
any item of  Equipment,  or shall be required to make an Income  Inclusion  (any
such event hereinafter referred to as a "Tax Loss"), then Lessee shall indemnify
Lessor for such Tax Loss as  provided in  Sections  7(c)(2)  and (3) hereof.  It
shall be  conclusively  presumed that Lessor shall have suffered a loss of State
Tax  Deductions  at the  State  Rate  in the  event  Lessor  suffers  a loss  of
Depreciation Deductions or Amortization Deductions.

         (2) In the event Lessor shall suffer a Tax Loss as described in Section
7(c)(1),  Lessee  shall pay to Lessor as an  indemnity,  on the next  succeeding
Payment  Date  after  written  notice  to Lessee by Lessor of such Tax Loss such
amount or amounts as, in the reasonable opinion of Lessor,  shall cause Lessor's
net after-tax cash flows and net after-tax yield (the "Net Economic  Return") to
equal the Net  Economic  Return that would have been  realized by Lessor if such
Tax Loss  had not  occurred,  and  shall  be  based  upon the same  assumptions,
specifically  including the assumptions set forth in Section 7(a) hereof (except
as such assumptions should be modified as a result of such Tax Loss) and pricing
analysis  used by Lessor  in  determining  the  amount  of the  periodic  Rental
Payments,  and such amount or amounts shall take into account any  subsequent or
offsetting tax benefits realized or to be realized by Lessor as a result of such
Tax Loss;  provided,  however,  that if all Applicable Terms under the Schedules
shall have  expired  prior to the time any such  payment  would be due, all such
payments  shall be  payable by Lessee in a lump sum not later than 30 days after
written demand by Lessor.

         (3) The accuracy of the  calculation set forth in Section 7(c)(2) shall
be subject to  verification,  upon the request of Lessee,  by an accounting firm
selected  by  Lessor  and  approved  by  Lessee,  which  approval  shall  not be
unreasonably  withheld.  In order to enable  such  accountants  to  verify  such
calculations,   Lessor  shall  provide  to  such   accountants  (for  their  own
confidential  use and not to be  disclosed  to Lessee or any  other  person  and
subject  to the  execution  of a  satisfactory  confidentiality  agreement)  all
information  reasonably necessary for such verification,  including any computer
analyses used by Lessor to calculate such amount or amounts.  Such  accountants'
determination  shall  be  binding  upon  Lessor  and  Lessee.  The  cost of such
verification  shall be borne by Lessee unless it is  determined  that the actual
amount payable deviates by more than 10% from the amount  originally  determined
by Lessor, in which case such costs will be borne by Lessor.

         (d) Notwithstanding anything to the contrary set forth in Section 7(c),
Lessor shall not be entitled to any payment under Section 7(c) in respect of any
Tax Loss arising as a direct result of one or more of the following events:

         (1) an amendment to, or change in, the Code, any Regulation thereunder,
any published  Revenue  Ruling or other document of the Treasury or the Internal
Revenue  Service,  any  applicable  state  statutes,   regulations,  or  similar
documents,  or the rate of tax  under  the laws of the  United  States or of any
state on the taxable  income of  corporations,  which is  promulgated or enacted
after the Commencement Date;


<PAGE>


                                      - 7 -


         (2) the  imposition of the  provisions of the  alternative  minimum tax
pursuant  to  section  55 of the Code or any other  minimum  tax or  alternative
minimum tax under applicable state or local income tax laws;

         (3) a claim or  determination  that the lease is not a "true lease" for
tax purposes or that Lessor is not the owner or lessor of any item of Equipment,
other than as a direct  result of a breach of any of  Lessee's  representations,
covenants or warranties  under this Agreement,  or as a direct result of any act
or omission of Lessee (other than an act or omission which is expressly required
by the terms of this Agreement);

         (4) the failure of Lessor to claim in a timely or proper manner any
Depreciation Deductions or Amortization Deductions (unless Lessor obtains an
opinion of independent tax counsel, selected by Lessor, to the effect that
substantial authority, as defined in Treas. Reg. Section 1.6662-4(d), to so
claim does not exist);

         (5) a failure of Lessor to have  sufficient  taxable  income to utilize
the  Depreciation  Deductions  or  Amortization  Deductions  or the inability of
Lessor to utilize such Deductions;

         (6) a sale,  transfer or other disposition by Lessor of any interest in
any item of Equipment  other than a sale or other transfer  pursuant to Lessor's
exercise of remedies following an Event of Default;

         (7)  any claim or assessment of Lessor for the environmental tax
imposed by section 57 of the Code to which Lessor is subject from time to time;

         (8)  the application of section 465, 467 or 469 of the Code;

         (9)  any tax election made by Lessor or any status of Lessor that is
inconsistent with the Tax Assumptions; or

         (10) a claim or determination  that Lessor is not holding the Equipment
in the ordinary  course of a trade or business or that Lessor did not enter into
the transaction for profit.

         (e) If,  by reason of any  indemnity  payment  made by Lessee to Lessor
pursuant to this  Section 7, Lessor  subsequently  realizes a Federal,  state or
local income tax benefit not  previously  taken into  account in  computing  the
amount of such  indemnity  payment (and  provided that no Event of Default shall
have  occurred  and be  continuing  and that Lessee shall have made all payments
then due and owing to Lessor under this  Agreement),  Lessor shall pay to Lessee
an amount  equal to the sum of (1) the actual  reduction  in Federal,  state and
local income taxes realized by Lessor and attributable to such tax benefit,  and
(2) the actual  reduction in Federal,  state and local income taxes  realized by
Lessor as a result of its  payment  pursuant  to this  Section  7(e);  provided,
however, that Lessor shall not be obligated to make any payment pursuant to this
Section 7(e) in excess of the amount of all prior indemnity payments from Lessee
to Lessor  pursuant to this  Section 7, less all prior  payments  from Lessor to
Lessee pursuant to this Section 7(e).



<PAGE>


                                      - 8 -

         (f) In the event a claim shall be made by the Internal  Revenue Service
which, if successful, would result in a Tax Loss under circumstances which would
require  Lessee to indemnify  Lessor for such Tax Loss,  Lessor hereby agrees to
notify Lessee promptly in writing of such claim, to forebear  payment of the tax
claimed for at least 30 days after such  notice,  to give to Lessee any relevant
information  requested  by it relating  to such claim which may be  particularly
within the knowledge of Lessor, other than Lessor's tax returns,  and, if Lessee
shall request,  within 30 days after such notice,  that such claim be contested,
to take such action in  connection  with  contesting  such claim as Lessee shall
reasonably  request  in  writing  from time to time,  but only if Lessee  shall,
contemporaneously   with  such  initial  request,   have  (1)  acknowledged  its
obligation to indemnify  Lessor for such claim pursuant to this Section 7 in the
event  that the  contest  is  unsuccessful,  (2)  made  provision  for  Lessor's
indemnification in a manner reasonably  satisfactory to Lessor for any liability
or loss which Lessor may from time to time incur as a result of contesting  such
claim,  and  reimbursement,  on an After-Tax Basis (as defined  below),  for all
costs and expenses  including  (without  limitation)  reasonable  legal fees and
expenses,  which Lessor may incur in connection with contesting such claim,  and
(3)  furnished  Lessor with an opinion of  independent  tax counsel,  reasonably
satisfactory to Lessor, to the effect that there is substantial authority within
the meaning of Treas. Reg.  ss.1.6662-4(d) in favor of the allowance of the item
proposed to be adjusted.  Lessor shall make reasonable  efforts to advise Lessee
of all action taken or proposed to be taken by the Internal  Revenue Service and
of all action  proposed to be taken by Lessor,  and shall consider in good faith
any suggestions of Lessee  relating to the conduct of any contest  hereunder and
shall use its best efforts to permit Lessee upon request reasonable  opportunity
to review the content of  documentation,  protests,  memoranda  of fact and law,
briefs,  and  stipulations  of fact,  each  relating  exclusively  to a proposed
adjustment  in the income  taxes of Lessor for which Lessee would be required to
indemnify  Lessor  pursuant  to this  Section  7. In no event  shall  Lessor  be
required to contest any claim if an Event of Default  shall have occurred and be
continuing, nor shall Lessor be required, whether or not an Event of Default has
occurred  and is  continuing,  to continue  any contest of any claim  beyond the
level of administrative proceedings with the Internal Revenue Service unless the
amount of the indemnity payment Lessee would be obligated to make hereunder with
respect to the claim being contested shall exceed $100,000, in which case Lessor
shall not be required to continue such contest beyond a Federal court of primary
jurisdiction;  provided,  however, that if Lessor prevails in a Federal court of
primary  jurisdiction and the Internal  Revenue Service files an appeal,  Lessor
shall make  reasonable  efforts to sustain the decision of the Federal  Court of
primary  jurisdiction.  Lessor shall not be required to contest any claim if the
subject matter thereof shall be of a continuing nature and shall have previously
been  decided  adversely  in a contest  conducted  pursuant  to this  Agreement.
Notwithstanding  anything to the contrary in this Section 7(f),  Lessor need not
initiate or continue  any contest of a claim with respect to which it has waived
in writing its right to any indemnity under Section 7(c) of this  Agreement.  In
the event that Lessor is obligated  hereunder  to proceed to a Federal  court of
primary jurisdiction and a decision is made to pay the tax and sue for a refund,
Lessee shall make Lessor an interest-free loan in the amount of such tax and, to
the extent  attributable  to a  disallowance  for which  Lessee is  obligated to
indemnify Lessor under this Section 7, related  interest,  fines,  penalties and
additions to tax.

                  (g) Economic Factors  Adjustment.  In addition,  the amount of
each periodic  Rental Payment  remaining to be paid during the Applicable  Term,
the Stipulated  Loss Value Factors,  the early buyout amount and the Termination
Value Factors  described in the Schedules  (collectively,  the Economic Factors)
(and for any  adjustments  set forth in (i) below,  the EBO Date (as  defined in
Section


<PAGE>


                                      - 9 -

18(a)) will also be adjusted) may be adjusted upwards or downwards,  as the case
may be to preserve the Lessor's Net Economic Return,  through both the EBO Date,
and the  expiration of the Initial Term, as initially  anticipated by the Lessor
in approving the  transactions  contemplated by this Agreement in the event that
(i) with respect to any  Schedule,  on or prior to its  Commencement  Date,  the
Pricing  Assumptions  described on Appendix A hereto (other than that the Lessor
is the owner of the  Equipment for federal or state tax purposes) are other than
as originally  assumed;  or (ii) the actual amount and timing of the Transaction
Expenses are different than as assumed in the Pricing Assumptions.

                  (h) Purchase  Price  Adjustment.  The Total Purchase Price (as
specified  in the  applicable  Schedule)  and Rental  Payment  set forth in each
Schedule are estimates,  and if the final invoice from Seller  specifies a Total
Purchase Price (including taxes, delivery,  installation and other charges) that
is greater or less than such  estimated  Total  Purchase  Price,  Lessee  hereby
authorizes  Lessor to adjust the Total  Purchase Price and Rental Payment on the
applicable  Schedule to reflect the final invoice amount (Final Invoice Amount).
However,  if the Final Invoice Amount exceeds the estimated Total Purchase Price
by more than 10%,  Lessor will notify Lessee and obtain  Lessee's  prior written
approval of the aforementioned adjustments;  provided, however that such written
approval  shall not be required  when such  adjustments  are caused by Equipment
changes or system reconfigurations requested or caused by Lessee. All references
in this Agreement and in any Schedule to Total Purchase Price and Rental Payment
shall mean the  estimates  thereof  specified  in the  applicable  Schedule,  as
adjusted pursuant to this Section 7.

                  (i) Interest Rate  Adjustment.  On the first Funding Date with
respect to each Schedule the Lessor will adjust the Lessee's  implicit  interest
rate (upwards or downwards)  with respect to the Equipment  being funded on such
date by  eighty-five  percent  (85%) of any  change  in the ask  yield  for U.S.
Treasury  Notes  maturing in the month and year  closest to four years after the
applicable Funding Date) equal to or greater than fifteen (15) basis points from
6.7% per  annum  and  maintain  a similar  rental  pattern,  as set forth in the
Eastern  Edition of The Wall  Street  Journal  two  business  days prior to such
Funding Date.

                  (j) FAS 13. No  adjustment  to the Economic  Factors  shall be
permitted to cause the lease of any  Equipment  hereunder not to be treated with
respect to the Lessee as an operating lease under Financial  Accounting Standard
13.

                  8.  INSURANCE.  At its own expense,  Lessee shall  provide and
maintain,  with  carriers  rated A or better by A.M.  Best,  with respect to the
Equipment,  commercial general liability and property insurance in such amounts,
against such risks and with such  deductibles as are typical in the industry for
telecommunications  lease  transactions,  and as are acceptable to Lessor. In no
event shall the amount of property  insurance coverage for the Equipment be less
than  the  Stipulated  Loss  Value  of the  Equipment.  Self-insurance  shall be
permitted only with the prior written approval of Lessor.  Lessor shall be named
as an additional  insured on all  liability  insurance  policies.  Each property
insurance  policy shall contain the insurer's  agreement to give Lessor 30 days'
prior written notice before  cancellation or material change thereof,  and shall
name Lessor as loss payee with  respect to any  aggregate  claim  thereunder  in
excess of $500,000. Each property insurance policy shall also provide that as to
the Lessor insurance shall not be invalidated by any act,  omission or breach by
Lessee.  Any  proceeds of property  insurance  carried and paid for by Lessee in
excess of the Stipulated


<PAGE>


                                     - 10 -

Loss  Value  of the  Equipment  shall be for the  benefit  of the  Lessee.  Each
commercial general liability insurance policy shall name Lessor as an additional
insured. Lessee shall deliver to Lessor the insurance policies or copies thereof
or  certificates  of such  insurance on or before the  Commencement  Date of the
applicable Schedule, and/or before renewal.

                  9. TAXES. (a) Lessee shall reimburse,  protect,  save and keep
harmless Lessor, its affiliates and their directors, officers, employees, agents
and representatives,  on an After-Tax Basis (as defined below),  against (or pay
directly,   but  only  if  instructed  by  Lessor)  all  taxes,   fees,  duties,
governmental  charges  and  assessments,  of any  nature  whatsoever,  including
interest,  fines, additions to tax, and penalties thereon, imposed by any taxing
authority with respect to the Equipment, on its purchase,  ownership,  delivery,
possession, transportation,  operation, rental, return to Lessor or its purchase
by Lessee, transfer of title,  registration,  or otherwise with respect to or in
connection with the transactions contemplated by this Agreement,  including, but
not  limited  to,  sales  and use  taxes,  property  taxes and all  license  and
registration  fees  (collectively,  "Taxes").  Lessee shall reimburse Lessor for
(or, with Lessor's consent, directly pay) these Taxes pursuant to this Section 9
whether they are imposed upon Lessor, any other indemnified person,  Lessee, the
Equipment or this  Agreement.  Lessee shall not be required to reimburse  Lessor
pursuant to this Section 9 for the following: (1) taxes based upon, measured by,
or  with  respect  to net or  gross  income,  receipts,  minimum  tax,  capital,
franchise or net worth  imposed by the United States of America or by any state,
local or foreign jurisdiction (other than sales, use, property,  rental,  lease,
ad valorem or  value-added  taxes (other than a value-added  tax that replaces a
tax imposed on net or gross  income));  (2) taxes on items of tax  preference or
any  minimum  tax;  (3)  taxes  resulting  from  Lessor's  disposition  (whether
voluntary or  involuntary)  of the Equipment or of any interest  therein  (other
than taxes  resulting from a transfer or  disposition  after an Event of Default
has occurred  and while such Event of Default is  continuing,  or in  connection
with a Loss, or from any  replacement  of the  Equipment by Lessee,  or from any
voluntary  termination  of this Agreement by Lessee);  (4) taxes  resulting from
either the willful  misconduct or gross  negligence of Lessor or from the breach
of Lessor's representations, warranties or obligations under this Agreement; (5)
taxes which  arise out of or are caused by any act or  omission of Lessor  where
such act or  omission  is  expressly  prohibited  by this  Agreement;  (6) taxes
related to the Equipment in respect of any period after the  expiration or early
termination of the Applicable Term relating  thereto and return of the Equipment
in accordance with Section 18 hereof; and (7) taxes imposed against a transferee
or  assignee,  if any,  of Lessor to the extent of the excess of such taxes over
the amount of taxes  which  would have been  imposed  had there not been such an
assignment or transfer.

         (b)  Notwithstanding  Section 9(a) above,  Lessee's  obligation to pay,
reimburse  or hold  harmless  Lessor  for  Taxes in the  nature of or in lieu of
sales,  use,  transfer or similar  types of Taxes,  including  interest,  fines,
additions to tax and penalties,  if any,  thereon  (collectively,  "Sales Tax"),
arising  out of  Lessor's  acquisition  and  leasing  of the  Equipment,  or any
replacement  of the  Equipment by Lessee,  shall be  conditioned  upon  Lessor's
delivering to the Seller (in the case of Lessor's  acquisition of the Equipment)
and to Lessee (in the case of any replacement by Lessee) such properly completed
and validly executed resale  certificates or similar  documents as may timely be
reasonably  requested  in  writing by Lessee,  within 10  business  days of such
request.   Lessor  shall  register  for  Sales  Tax  purposes  with  the  taxing
authorities  in all  applicable  jurisdictions  as necessary to permit Lessor to
perform its obligations under this Section 9(b).



<PAGE>


                                     - 11 -

         (c) Where required by an applicable  jurisdiction,  Lessee shall pay to
Lessor  Sales Tax on that  portion of the total  amount of each  Rental  Payment
allocable to each item of Equipment calculated at the tax rate applicable to the
jurisdiction  in which  each  respective  item of  Equipment  is  located on the
Commencement  Date.  Lessor shall report and remit such Sales Tax as required by
the applicable jurisdiction. In the event that Sales Tax is imposed by any state
taxing authority  attributable to the Rental Payments, in excess of that paid by
Lessee to Lessor pursuant to this Section 9(c),  Lessee shall  reimburse  Lessor
(or pay directly,  but only if instructed by Lessor), on an After-Tax Basis, for
all such additional  taxes,  including,  interest,  fines,  additions to tax and
penalties thereon.

         (d)  Unless  otherwise  required  by  law,  upon  commencement  of  the
Applicable Term,  Lessee shall be responsible for reporting the Equipment for ad
valorem  property tax purposes where applicable and Lessor shall not include the
Equipment in any ad valorem or other similar tax returns filed by Lessor.

         (e) If any claim is made against Lessor, by commencement of proceedings
against Lessor or otherwise, for Taxes, including interest,  fines, additions to
tax,  and  penalties  thereon for which  Lessee  would have a  reimbursement  or
payment  obligation  pursuant  to  this  Section  9,  Lessor  shall  as  soon as
reasonably practical notify Lessee of such claim in writing; provided,  however,
that  Lessor's  failure  to  provide  such  notice  shall  not  reduce  Lessee's
obligations  under  this  Section  9 except  to the  extent  that  such  failure
materially  prejudices  Lessee's ability to pursue its contest rights hereunder.
Lessee may, at its expense,  in good faith and by appropriate  administrative or
legal proceedings, contest or defend an asserted claim or liability for which it
is indemnifying  Lessor under this Section 9, so long as (1) no Event of Default
shall have  occurred and be  continuing,  and (2) in the  reasonable  opinion of
Lessor,  such  contest  or  defense  is being  diligently  conducted  by persons
reasonably  satisfactory to Lessor.  To the extent permitted by law, any contest
or defense  conducted  pursuant to this  Section 9(e) may be conducted by Lessee
either  in its own name or,  if  required  by the  applicable  jurisdiction,  in
Lessor's name.  Lessee shall reimburse  Lessor,  on an After-Tax  Basis, for all
costs and expenses,  including  (without  limitation)  reasonable legal fees and
expenses,  which  Lessor may incur in  connection  with such contest or defense.
Lessor agrees to offer its good faith cooperation and assistance,  at no cost or
expense to Lessor, in Lessee's conduct of such contest or defense.

         (f) "After-Tax  Basis" shall mean an amount which,  after  deduction of
all Taxes  (without  respect to any  exclusion  provided in Section 9(a) hereof)
imposed  by any  and  all  jurisdictions  that  are  required  to be paid by the
recipient  in respect  of the  receipt  or  accrual  of such  amount,  and after
consideration of any current deduction,  credit or other tax benefit realized by
the recipient and attributable to the indemnified Tax, cost or expense, is equal
to the amount required to be indemnified against on an After-Tax Basis.

                  10. REPAIRS;  USE; LOCATION;  LABELS. Lessee shall: (a) at its
own expense, keep the Equipment in good repair,  condition and working order and
maintained in accordance  with the  manufacturer's  recommended  engineering and
maintenance  standards;  (b) use  the  Equipment  lawfully  and  exclusively  in
connection  with its  business  operations  and for the  purpose  for  which the
Equipment  was designed and intended;  and (c) not move the  Equipment  from the
Equipment  Location (i) to any location  outside the United States of America or
(ii)  without  providing  Lessor  with at least ten days  prior  written  notice
thereof, payment of any filing fees and taxes for filing Uniform Commercial Code


<PAGE>


                                     - 12 -

Financing Statements,  and landlord waivers substantially in the form of Exhibit
D hereto with respect to any such  location,  to any other  location  within the
United States of America. If Lessor supplies Lessee with labels stating that the
Equipment is owned by Lessor,  Lessee  shall affix such labels to the  Equipment
pursuant to Lessor's instructions.

                  11. MAINTENANCE;  ALTERATIONS; INSPECTION. At its own expense,
Lessee  shall:  (a)  maintain  the  Equipment  in the  same  condition  as  when
delivered,  subject only to ordinary wear and tear, and in good operating  order
and appearance,  and consistent with Seller's specifications as set forth in the
Purchase Documents, and shall properly handle and dispose of batteries and other
hazardous materials; (b) make all alterations or additions to the Equipment that
may be  required  or  supplied  by the  Seller or legally  necessary,  including
upgrading  the  Equipment  at no expense to Lessor with  Seller's  then  current
generic  software  release not later than one year after the initial  release of
such  software,  which  software  shall remain the property of the Lessor unless
Lessee acquires the Equipment pursuant to Section 13 or Section  18(a)(1),(2) or
(4); and (c) make no other alterations or additions to the Equipment (except for
alterations or additions that will not decrease or impair the fair market-value,
useful life, condition,  performance or residual value of any item of Equipment,
or that will not cause such item of Equipment to become  "limited use  property"
(as defined in Rev. Proc. 75-28).  Any  modifications,  alterations or additions
that Lessee makes to the Equipment shall become Lessor's property and shall also
be deemed to be Equipment  unless such  modifications,  alterations or additions
are readily removable without damage to the Equipment.  Upon request, Lessor, or
any party  designated  by Lessor,  shall have the right to inspect the Equipment
and Lessee's  records at any reasonable time upon reasonable  notice or upon the
occurrence  and  during  the  continuance  of an Event of  Default,  at any time
without notice.

                  12.   PERSONAL PROPERTY; LIENS AND ENCUMBRANCES; TITLE;
SUBSTITUTION.  The  Equipment  shall  at all  times  remain  personal  property,
notwithstanding  that the  Equipment,  or any part thereof,  may be (or becomes)
affixed or attached to real property or any improvements thereon. Except for the
interest  of  Lessor,  Lessee  shall  keep the  Equipment  free and clear of all
levies, liens and encumbrances of any nature whatsoever. Except as expressly set
forth in this Agreement, the Equipment shall at all times remain the property of
Lessor and Lessee shall have no right,  title or interest therein.  Lessee shall
have the  right,  for any  valid  business  reason  in the  Lessee's  reasonable
opinion,  to substitute  any item of Equipment with a similar piece of equipment
having a fair market value, residual value, utility and remaining useful life at
least equal to the replaced  item of  Equipment's  fair market  value,  residual
value,  utility  and  remaining  useful  life,  assuming  the  replaced  item of
Equipment  was in the  condition  required  by  this  Agreement.  Prior  to such
substitution, Lessee will, with respect to a substitution for items of Equipment
with an aggregate original cost in excess of $50,000,  (i) furnish Lessor with a
full warranty  bill of sale and an assignment of warranties  with respect to the
replacement item of Equipment, (ii) cause a Schedule supplement, subjecting such
replacement  item of  Equipment to the  applicable  Schedule,  duly  executed by
Lessee, to be delivered to Lessor for execution and, upon such execution,  to be
filed for  recordation  if requested  by Lessor,  (iii)  furnish  Lessor with an
opinion of Lessee's counsel, to the effect that (x) the bill of sale referred to
in clause (i) above  constitutes  an effective  instrument for the conveyance of
title to the  replacement  item of Equipment  to Lessor,  (y) legal title to the
replacement  item of Equipment has been  delivered to Lessor,  free and clear of
all  liens,  and (z) all  filings,  recordings  and other  action  necessary  or
appropriate to perfect and protect Lessor's  interest in the replacement item of
Equipment have been


<PAGE>


                                     - 13 -

accomplished, and (iv) indemnify in accordance with the tax indemnity provisions
of Section 7 and the provisions of Section 9, Lessor for any risk of adverse tax
consequences as a result of or relating to such substitution.

                  13. RISK OF LOSS. As between  Lessor and Lessee,  Lessee shall
bear the entire risk of loss, theft, destruction or damage to the Equipment from
any cause whatsoever or requisition of the Equipment by any governmental  entity
or the taking of title to the Equipment by eminent  domain or otherwise.  Lessee
shall advise Lessor in writing within 10 days of any such occurrence.  Except as
provided below, no such occurrence shall relieve Lessee of the obligation to pay
Lessor Rental Payments and all other amounts owed hereunder. In the event of any
such occurrence,  Lessee may if such occurrence has not materially  impaired the
Equipment  (in  Lessor's  reasonable  judgment)  place  the  Equipment  in  good
condition  and repair  reasonably  satisfactory  to Lessor and  continue  making
Rental Payments.  An item of Equipment shall be deemed to have suffered an Event
of Loss if (a) such item of Equipment  suffers an actual or  constructive  total
loss or insurance  proceeds are received on that basis with respect to such item
of  Equipment;  (b)  such  item of  Equipment  is lost or  stolen  for a  period
exceeding  one hundred  and twenty  (120) days;  (c) such item of  Equipment  is
damaged beyond  economic  repair or is permanently  unfit for commercial use for
its intended purpose;  (d) title to such item of Equipment is taken or such item
of Equipment  requisitioned  for use by any governmental  authority for a period
extending  beyond the  earlier of 270 days or the  remainder  of the  Applicable
Term.  Upon the occurrence of any Event of Loss,  Lessee may elect either to pay
the Stipulated  Loss Value of the affected item of Equipment as set forth on the
Schedule or replace the item of Equipment in  accordance  with the  substitution
procedures  described in Section 12. Any  Stipulated  Loss Value  payment  shall
occur on the next  Rental  Payment  Date.  Upon  Lessor's  full  receipt of such
Stipulated  Loss  Value  and any  other  amounts  owing  hereunder  or under the
applicable  Schedule with respect to such item of Equipment:  (y) the applicable
Schedule shall terminate,  and except as provided in Section 25, Lessee shall be
relieved of all obligations under the applicable Schedule;  and (z) Lessor shall
transfer all of its  interest in the  affected  items of Equipment to Lessee "AS
IS, WHERE IS," and without any warranty,  express or implied from Lessor,  other
than the absence of any liens or claims by, through,  or under Lessor. If Lessee
elects to substitute  Equipment,  then upon  completion of all the  substitution
procedures  set forth in Section 12, Lessor shall release to Lessee any property
insurance payments received by Lessor in connection with such Event of Loss.

                  14.  NON-CANCELABLE  NET LEASE.  ALL LEASES HEREUNDER SHALL BE
NON-CANCELABLE  NET  LEASES,  AND  LESSEE  AGREES  THAT IT HAS AN  UNCONDITIONAL
OBLIGATION TO PAY ALL RENTAL  PAYMENTS AND OTHER AMOUNTS WHEN DUE ON OR PRIOR TO
THE TERMINATION OF THE LEASES.  LESSEE IS NOT ENTITLED TO ABATE OR REDUCE RENTAL
PAYMENTS  OR ANY OTHER  AMOUNTS  DUE, OR TO SET OFF ANY  CHARGES  AGAINST  THOSE
AMOUNTS. LESSEE IS NOT ENTITLED TO RECOUPMENTS,  CROSS-CLAIMS,  COUNTERCLAIMS OR
ANY OTHER  DEFENSES  TO ANY RENTAL  PAYMENTS  OR OTHER  AMOUNTS  DUE  HEREUNDER,
WHETHER THOSE  DEFENSES ARISE OUT OF CLAIMS BY LESSEE  AGAINST  LESSOR,  SELLER,
THIS AGREEMENT, ANY SCHEDULE OR OTHERWISE.  NEITHER DEFECTS IN EQUIPMENT, DAMAGE
TO IT, NOR ITS LOSS, DESTRUCTION OR LATE DELIVERY SHALL TERMINATE THIS AGREEMENT
OR ANY SCHEDULE,  OR AFFECT  LESSEE'S  OBLIGATIONS  HEREUNDER.  UNLESS  LESSEE'S
OBLIGATION TO


<PAGE>


                                     - 14 -

PAY RENTAL  PAYMENTS  AND OTHER  AMOUNTS  HAS BEEN  TERMINATED  PURSUANT  TO THE
EXPRESS  TERMS OF THIS  AGREEMENT,  ALL RENTAL  PAYMENTS AND OTHER AMOUNTS SHALL
CONTINUE TO BE DUE AND PAYABLE HEREUNDER.

                  15.  LESSOR  DISCLAIMERS;   LIMITATION  OF  REMEDIES.   IT  IS
SPECIFICALLY  UNDERSTOOD AND AGREED THAT: (A) LESSOR SHALL NOT BE DEEMED TO HAVE
MADE ANY REPRESENTATION,  WARRANTY OR PROMISE MADE BY SELLER, NEITHER SELLER NOR
LESSOR SHALL ACT AS, OR BE DEEMED TO BE, AN AGENT OF THE OTHER, AND LESSOR SHALL
NOT BE BOUND BY, OR LIABLE FOR,  ANY  REPRESENTATION  OR PROMISE  MADE BY SELLER
(EVEN IF LESSOR IS AFFILIATED  WITH SELLER);  (B) LESSOR SHALL NOT BE LIABLE FOR
ANY FAILURE OF ANY EQUIPMENT OR ANY DELAY IN ITS DELIVERY OR  INSTALLATION;  (C)
LESSOR SHALL NOT BE LIABLE FOR ANY BREACH OF ANY  WARRANTY  THAT SELLER MAY HAVE
MADE; (D) LESSEE HAS SELECTED ALL EQUIPMENT  WITHOUT  LESSOR'S  ASSISTANCE;  (E)
LESSOR IS NOT A MANUFACTURER  OF ANY EQUIPMENT;  AND (F) LESSOR HAS NOT MADE AND
DOES NOT NOW MAKE ANY  REPRESENTATION  OR  WARRANTY,  EXPRESS OR  IMPLIED,  WITH
RESPECT TO THE DESIGN,  COMPLIANCE WITH SPECIFICATIONS,  OPERATION, OR CONDITION
OF ANY  EQUIPMENT  (OR ANY PART  THEREOF),  THE  MERCHANTABILITY  OR  FITNESS OF
EQUIPMENT FOR A PARTICULAR  PURPOSE,  OR ISSUES REGARDING  PATENT  INFRINGEMENT,
TITLE AND THE LIKE. IT IS FURTHER  AGREED THAT LESSOR SHALL HAVE NO LIABILITY TO
LESSEE,  LESSEE'S  CUSTOMERS,  OR ANY THIRD  PARTIES FOR ANY  DIRECT,  INDIRECT,
SPECIAL OR  CONSEQUENTIAL  DAMAGES ARISING OUT OF THIS AGREEMENT OR ANY SCHEDULE
OR CONCERNING ANY EQUIPMENT, OR FOR ANY DAMAGES BASED ON STRICT OR ABSOLUTE TORT
LIABILITY  OR  LESSOR'S  NEGLIGENCE;  PROVIDED,  HOWEVER,  THAT  NOTHING IN THIS
AGREEMENT  SHALL  DEPRIVE  LESSEE OF ANY RIGHTS IT MAY HAVE  AGAINST  ANY PERSON
OTHER THAN LESSOR. LESSEE SHALL LOOK SOLELY TO SELLER FOR ANY AND ALL CLAIMS AND
WARRANTIES  RELATING TO THE  EQUIPMENT.  Lessor hereby assigns to Lessee for the
Term
of the  applicable  Schedule  the  right to  enforce,  provided  Lessor  has not
exercised any of its remedies under Section 20, and such  enforcement is pursued
in Lessee's name, any representations,  warranties and agreements made by Seller
pursuant to the Purchase Documents, and Lessee may retain any recovery resulting
from any such  enforcement  efforts.  TO THE EXTENT PERMITTED BY APPLICABLE LAW,
LESSEE WAIVES ANY AND ALL RIGHTS AND REMEDIES CONFERRED UPON A LESSEE BY ARTICLE
2A OF THE UCC AND ANY RIGHTS NOW OR HEREAFTER  CONFERRED BY STATUTE OR OTHERWISE
THAT MAY LIMIT OR MODIFY  LESSOR'S  RIGHTS AS DESCRIBED IN THIS SECTION OR OTHER
SECTIONS OF THIS AGREEMENT.

                  16. LESSEE REPRESENTATIONS AND WARRANTIES.  Lessee represents,
warrants and  covenants to Lessor on the date of the  execution  and delivery of
this Agreement and on each  Commencement  Date that: (a) Lessee is a corporation
duly  organized,  validly  existing  and in  good  standing  under  the  laws of
Delaware,  has all requisite  corporate  power and authority to own its property
and assets and to carry on its  business as now  conducted,  is  qualified to do
business in every  jurisdiction  where such  qualification  or  registration  is
required, except where the failure so to qualify would not


<PAGE>


                                     - 15 -

materially  adversely  affect the  financial  condition  of Lessee,  and has the
corporate  power and authority to execute,  deliver and perform its  obligations
under  this  Agreement,  all  Schedules  and  all  other  related  documents  or
instruments  (collectively,  Fundamental Agreements) to which it is or will be a
party; (b) this Agreement and each other Fundamental Agreement to which it its a
party have been duly  authorized by all  necessary  corporate  action,  and have
been, or prior to the applicable Commencement Date will have been, duly executed
and  delivered by it, and neither the execution  and delivery  thereof,  nor the
consummation of the  transactions on its part  contemplated  hereby and thereby,
nor compliance by it with any of the terms and provisions hereof or thereof, (i)
requires any approval of its  stockholders or approval or consent of any trustee
or  holders  of any  indebtedness  or  obligations  of  Lessee,  except for such
approvals  and  consents as have been duly  obtained,  and are in full force and
effect,  (ii) contravenes,  as to Lessee,  any existing law, or (iii) in any way
contravenes its governing corporate documents or by-laws; (c) this Agreement and
each  other  Fundamental  Agreement  to  which  it is a party  are,  or upon due
execution and delivery  thereof by all other parties thereto will be, its legal,
valid and binding  obligation,  enforceable  against it in  accordance  with its
terms,  except as may be  limited  by  bankruptcy,  insolvency,  reorganization,
moratorium or similar laws relating to or limiting  creditors'  rights generally
or by equitable  principles  relating to  enforceability;  (d) the execution and
delivery by Lessee of each  Fundamental  Agreement  to which it is a party,  the
consummation of the  transactions  contemplated  thereby and its compliance with
the terms  thereof do not require the consent or the  approval or  authorization
of,  or  filing,   except  as  contemplated   in  the  Fundamental   Agreements,
registration or qualification  with, any  governmental  authority on the part of
Lessee as a condition to such execution, delivery and compliance, except such as
have been made or  obtained  and are in full  force and  effect;  (e) Lessee has
delivered to Lessor copies of (i) the  consolidated  balance sheet of Lessee and
its  consolidated  subsidiaries  as of June 30, 1995,  and related  consolidated
statements  of  operations  and  stockholders'  equity for the fiscal  year then
ended, accompanied by the report of KPMG Peat Marwick, independent auditors; and
(ii) the unaudited  consolidated  balance  sheet of Lessee and its  consolidated
subsidiaries  as of March  31,  1996,  and the  related  unaudited  consolidated
statements of operations and stockholders' equity for the nine-month period then
ended,  and in the  case of the  statements  referred  to in  clause  (i),  such
statements  fairly  present,  in accordance with generally  accepted  accounting
principles,  the financial position of Lessee and its consolidated  subsidiaries
as of such date and, in the case of the  statements  referred to in clause (ii),
have been prepared on a basis  consistent  with that employed in the preparation
of the  financial  statements  referred to in clause (i),  and in the opinion of
management of Lessee reflect all adjustments  necessary for a fair  presentation
of the results for the interim period presented,  and since June 30, 1995, there
has been no material  adverse change in the condition  (financial or otherwise),
operations, properties or prospects of the Lessee (Material Adverse Change); (f)
except as set forth in Schedule 16, there are no actions,  suits or  proceedings
at law or in equity  pending  or, in the case of  actions  or  proceedings  by a
governmental  authority,  to the  knowledge  of  Lessee,  threatened  against or
affecting Lessee or any business, property or rights of Lessee (A) which involve
any Fundamental Agreement or the transactions  contemplated thereby or (B) as to
which there is a reasonable  possibility of an adverse  determination and which,
if adversely  determined,  would reasonably be expected,  individually or in the
aggregate,  to result in a Material Adverse Change or in the inability of Lessee
to perform its  obligations  under any  Fundamental  Agreement  to which it is a
party, or adversely  affect the value of the Equipment in any material  respect;
(g)  Lessee  has filed or caused  to be filed all  federal,  state and local tax
returns  required to have been filed by it and has paid or caused to be paid all
taxes as shown on such returns or on any assessment received by it to the extent
that such taxes have become due, except such taxes the amount, applicability


<PAGE>


                                     - 16 -

or  validity  of  which  are  being  contested  in  good  faith  by  appropriate
proceedings  and with  respect to which Lessee shall have set aside on its books
adequate reserves as are required by generally accepted  accounting  principles;
(h) as of any  Commencement  Date, the chief executive office of Lessee shall be
located at the address set forth on the cover page hereof or such other location
that an officer of Lessee has certified to Lessor in writing;  (i) ALL EQUIPMENT
IS LEASED FOR BUSINESS PURPOSES ONLY, AND NOT FOR PERSONAL,  FAMILY OR HOUSEHOLD
PURPOSES;  and (k) all  Equipment  is tangible  personal  property and shall not
become a fixture or real property under Lessee's use thereof.

                  17. GENERAL INDEMNITY.  Lessee shall indemnify, hold harmless,
and, if so  requested  by Lessor,  defend  Lessor  against  all claims  (Claims)
directly or  indirectly  arising out of or connected  with the  Equipment or any
Fundamental Agreement but not Claims arising solely from the gross negligence or
willful  misconduct  of the Lessor.  Claims  refers to all losses,  liabilities,
damages, penalties,  expenses (including legal fees and costs), claims, actions,
and suits, whether in contract or in tort, whether caused by Lessor's negligence
or  otherwise,  and whether  based on a theory of strict  liability of Lessor or
otherwise,  and  includes,  but is not limited to,  matters  regarding:  (a) the
selection,  manufacture,  purchase, acceptance,  rejection, ownership, delivery,
lease,  possession,  maintenance,  use,  condition,  return or  operation of the
Equipment; (b) any latent defects or other defects in any Equipment,  whether or
not discoverable by Lessor or by Lessee; (c) any patent, trademark, or copyright
infringement;  and (d) the condition of any Equipment arising or existing during
Lessee's use.

                  18.  OPTIONS; SURRENDER.  (a)  Options.  Lessee shall have the
options specified below.  Upon payment of the amount described in clauses (1),
(2) or (3) below and any other amounts owing with respect to the items of
Equipment subject to such options under this Agreement or the applicable
Schedules (other than future Rental Payments), and return of the Equipment to
Lessor if the Termination Option is exercised, the applicable Schedule shall
terminate, and except as provided in Section 25, Lessee shall be relieved of all
obligations under the applicable Schedule, and if the Early Buyout Option or the
Fair Market Value Purchase Option has been exercised, Lessor shall transfer all
of its interest in the affected items of Equipment to Lessee "AS IS, WHERE IS,"
and without any warranty, express or implied from Lessor, other than the absence
of any liens or claims by, through, or under Lessor.

                  (1) Early Buyout Option.  Provided that no Event of Default or
Potential  Default has then  occurred and is  continuing,  Lessee shall have the
option  to  purchase  all,  but not  less  than all of the  items  of  Equipment
constituting an individual 5ESS switch on the date (EBO Date) and for a purchase
price  specified  by  Lessor  in the  applicable  Schedule  for  such  items  of
Equipment.  Such option will be exercisable upon  irrevocable  written notice to
Lessor from Lessee given at least ninety (90) days prior to the  applicable  EBO
Date.

                  (2) Fair Market Value Purchase Option.  Provided that no Event
of Default or  Potential  Default has then  occurred and is  continuing,  Lessee
shall have the option to  purchase  all,  but not less than all, of the items of
Equipment  constituting  an individual  5ESS switch at the end of the applicable
Term for its then Fair Market Value,  which shall mean the cash  purchase  price
which would be obtained in an arm's-length  transaction  between an informed and
willing buyer and an informed and willing  seller,  under no compulsion to sell,
excluding any value attributable to improvements which may


<PAGE>


                                     - 17 -

be removed by Lessee pursuant to Section 11, without  consideration  of Lessee's
purchase or renewal  options and on an uninstalled  basis,  but assuming  (other
than in the  case of an  exercise  of  remedies  hereunder)  that  such  item of
Equipment  was in the  condition  required  hereunder,  together  with any other
payments then due and owing under the applicable Schedule. The Fair Market Value
shall be  subject  to a cap ("FMV  Cap") set forth in the  applicable  Schedule.
Lessee shall provide  Lessor with at least 180 days prior written  notice of its
intent to  purchase  Equipment  for Fair  Market  Value.  Such  notice  shall be
irrevocable  unless the Fair Market  Value is more than  fifteen  percent  (15%)
above any estimate  thereof provided by Lessee in such written notice and Lessee
notifies Lessor in writing not later than five days after the  determination  of
Fair Market  Value of its  decision to revoke  exercise of the Fair Market Value
purchase  option.  If Lessor and Lessee  cannot agree on such Fair Market Value,
the Fair Market Value shall be determined by an independent  appraiser  selected
by Lessor and Lessee, provided, however, that if Lessor and Lessee are unable to
agree upon an independent appraiser, each shall select an independent appraiser,
and such independent  appraiser shall select a third independent appraiser which
shall determine the Fair Market Value. Lessee shall be responsible for and shall
pay all costs and expenses associated with any appraisal.

                  (3) Termination  Option.  Provided that no Event of Default or
Potential  Default has then  occurred  and is  continuing,  Lessee will have the
right,  upon provision of 180 days  irrevocable  written notice,  to terminate a
Schedule  with  respect to all, but not less than all, of the items of Equipment
constituting  an individual  5ESS switch on any Rental Payment Date occurring on
or after  the  third  anniversary  of the  Commencement  Date for such  items of
Equipment if Lessee  determines in good faith (and,  upon  request,  provides an
officer's  certificate to such effect),  without  discriminating  among items of
Equipment or other similar equipment owned or leased by Lessee,  that such items
of  Equipment  have become  obsolete or surplus to its needs.  If  requested  by
Lessor,  Lessee will use commercially  reasonable efforts to sell the applicable
items of  Equipment to an  unrelated  third party but the failure to  consummate
such a sale shall not relieve Lessee of any payment obligations set forth in the
next  sentence.  Upon such a  termination,  Lessee  will pay to Lessor an amount
equal  to any  deficiency  between  the  Termination  Value  for  such  items of
Equipment,  determined as set forth on the applicable Schedule, and the net cash
proceeds of any sale of such items of  Equipment  received by Lessor from Lessee
and shall surrender the affected items of Equipment to Lessor in accordance with
the provisions of Section 18(b).

                  (4)  Renewal  Option.  Provided  that no Event of  Default  or
Potential  Default has then  occurred and is  continuing,  Lessee shall have the
option upon provision of irrevocable  written notice delivered at least 120 days
prior to the expiration of the Applicable Term and upon execution of appropriate
documentation, to renew any Schedule with respect to all, but not less than all,
of the items of Equipment  constituting  an individual 5ESS switch for a Renewal
Term of not less than one year or the remainder of the useful life of such items
of Equipment, whichever period is shorter, for the then Fair Market Rental Value
of such items of  Equipment,  payable  quarterly in arrears.  Fair Market Rental
Value shall mean with  respect to an item of  Equipment,  the cash rental  which
would be obtained in an arm's-length transaction between an informed and willing
lessee (other than a lessee in current  possession)  and an informed and willing
lessor,  under no  compulsion  to lease,  excluding  any value  attributable  to
improvements  that Lessee is permitted to remove  pursuant to Section 11, and on
an  uninstalled  basis,  but assuming  (other than in the case of an exercise of
remedies hereunder) that such


<PAGE>


                                     - 18 -

item of Equipment was in the condition  required  hereunder.  Fair Market Rental
Value shall be determined  in the same manner as Fair Market Value,  at the sole
cost and expense of Lessee.

                  (b) Surrender.  Unless Lessee exercises one of the options set
forth in Section  18(a)(1),  (2) or (4), or acquires the  Equipment  pursuant to
Section 13 hereof,  Lessee shall at its expense,  reinstall,  inspect,  test and
properly pack the  Equipment,  and return the Equipment at the expiration of the
Term in the condition and with the software  required by Section 11, free of all
liens and rights of others,  by  delivering  it on board such common  carrier as
Lessor may  specify  with  freight  prepaid  to not more than two (2)  locations
within  the  continental  United  States of  America  specified  by  Lessor  and
reasonably  acceptable  to Lessee.  If Lessee so  agrees,  Lessor and its agents
shall have the right to enter upon any premises  where  Equipment may be located
to perform  any of Lessee's  tasks  noted  above in this  Section 18, and Lessee
shall  reimburse  Lessor for all costs and expenses  Lessor incurs in fulfilling
such tasks. Lessee agrees that the Equipment,  when returned to Lessor, shall be
in the same  condition  as when  delivered to Lessee,  reasonable  wear and tear
excepted. (If the Equipment is not in such condition, Lessee shall be liable for
all costs and expenses Lessor incurs to place the Equipment in such  condition.)
If requested by Lessor,  Lessee,  at its sole risk and expense,  shall store the
Equipment at any of the two above described locations for a period not to exceed
sixty (60) days,  during which period the  Equipment  shall be subject to all of
the terms and  conditions  hereof,  except  for the  obligation  to make  Rental
Payments.  At Lessor's  risk and  expense,  Lessor  shall be entitled to require
Lessee to store the  Equipment at such  locations  for an  additional  period of
ninety (90) days.

                  19. EVENTS OF DEFAULT.  Any of the following shall  constitute
an Event of Default under this Agreement and all Schedules:  (a) Lessee fails to
pay any Rental Payment,  Stipulated  Loss Value payment,  early buyout amount or
Termination  Value  payment  within five days after its due date;  or (b) Lessee
fails to pay any other amount  payable to Lessor  hereunder  within fifteen (15)
days  after its due date;  or (c) any  representation  or  warranty  made by the
Lessee in any Fundamental Agreement shall prove to have been untrue when made in
any material  respect;  or (d) Lessee fails to maintain in full force and effect
any  insurance  required  by  Section 8; or (e) a loss by Lessor of title to the
Equipment  occurs  (other than as a result of action or inaction by Lessor);  or
(f)  Lessee  fails to  perform  or  observe  any other  covenant,  condition  or
agreement  to be  performed  or  observed  by Lessee  hereunder  or in any other
Fundamental  Agreement,  and Lessee fails to cure any such breach  within thirty
(30) days after notice thereof;  provided,  however, that if such failure is not
likely to result in the forfeiture or loss of title to any item of Equipment and
is  capable  of cure but  cannot  be cured by  payment  of money or by  diligent
efforts  within such thirty (30) day period but such  diligent  efforts shall be
properly commenced within the cure period and Lessee is diligently pursuing, and
shall  continue to pursue  diligently,  remedy of such failure,  the cure period
shall be extended for an additional  period of time as may be necessary to cure,
not to exceed an  additional  150 days or to extend  beyond the then  Applicable
Term;  or (g) Lessee makes an assignment  for the benefit of creditors,  whether
voluntary  or   involuntary;   or  (h)  a  proceeding   under  any   bankruptcy,
reorganization, arrangement of debts, insolvency or receivership law is filed by
or against  Lessee or Lessee takes any action to authorize  any of the foregoing
matters and with respect to any such  proceeding  filed against  Lessee,  either
such proceeding remains  undismissed or unstayed for a period of sixty (60) days
or the relief  sought in such  proceeding  is  granted;  or (i)  Lessee  becomes
insolvent  or fails  generally  to pay its debts as they  become due; or (j) the
Equipment  is levied  against,  seized or attached  (other than by a  commercial
creditor  of  Lessor),  or Lessee  seeks to  effectuate  a bulk sale of Lessee's
inventory or assets; or (k) Lessee voluntarily or


<PAGE>


                                     - 19 -

involuntarily dissolves or is dissolved, or terminates or is terminated;  or (l)
any final judgments, decrees, writs of execution, attachments or garnishments or
any liens or any other legal  processes shall be issued or levied against Lessee
or any of its  assets  in  amounts  which in the  aggregate  would  result  in a
Material Adverse Change with respect to Lessee.

                  20.  REMEDIES.  If an Event of Default occurs,  Lessor may, in
its  sole  discretion,  exercise  one or more  of the  following  remedies:  (a)
terminate this Agreement or any or all Schedules;  or (b) take possession of, or
render unusable,  any Equipment  wherever the Equipment may be located,  without
demand or notice,  without any court  order or other  process of law and without
liability  to Lessee for any  damages  occasioned  by such  action,  and no such
action shall constitute a termination of any Schedule;  or (c) require Lessee to
deliver the  Equipment at a location  designated  by Lessor;  or (d) declare the
Stipulated  Loss Value (as  calculated  by Lessor as of the date of the Event of
Default) for each applicable  Schedule due and payable as liquidated damages for
loss of a  bargain  and not as a  penalty  and in  lieu  of any  further  Rental
Payments  under the  applicable  Schedule;  or (e)  proceed  by court  action to
enforce  performance by Lessee of any Schedule and/or to recover all damages and
expenses incurred by Lessor by reason of any Event of Default;  or (f) terminate
any  other  Fundamental  Agreement  that  Lessor  may have with  Lessee;  or (g)
exercise  any other  right or remedy  available  to Lessor at law or in  equity.
Also,  Lessee shall pay Lessor all costs and expenses  (including legal fees and
costs and fees of  collection  agencies)  incurred by Lessor in enforcing any of
the terms,  conditions or provisions of this  Agreement.  Upon  repossession  or
surrender of any Equipment, Lessor shall lease, sell or otherwise dispose of the
Equipment in a  commercially  reasonable  manner,  with or without notice and at
public or private sale, and apply the net proceeds  thereof (after deducting all
expenses  (including legal fees and costs) incurred in connection  therewith) to
the amounts  owed to Lessor  hereunder;  provided,  however,  that Lessee  shall
remain liable to Lessor for any deficiency  that remains after any sale or lease
of such  Equipment.  Lessee  agrees  that with  respect  to any notice of a sale
required  by law to be  given,  ten days'  notice  shall  constitute  reasonable
notice.  These  remedies  are  cumulative  of every other right or remedy  given
hereunder  or now or  hereafter  existing  at law or in equity or by  statute or
otherwise, and may be enforced concurrently therewith or from time to time.

                  21. LESSOR'S  PERFORMANCE OF LESSEE'S  OBLIGATIONS.  If Lessee
fails to perform any of its obligations hereunder, Lessor may perform any act or
make any payment that Lessor deems reasonably  necessary for the maintenance and
preservation of the Equipment and Lessor's interests therein; provided, however,
that the  performance  of any act or  payment  by  Lessor  shall not be deemed a
waiver of, or release Lessee from, the obligation at issue.  All sums so paid by
Lessor,  together with  expenses  (including  legal fees and costs)  incurred by
Lessor in connection  therewith,  shall be paid to Lessor by Lessee  immediately
upon demand.

                  22.  COVENANTS.  (a)  Reporting Requirements.  Lessee shall
furnish to Lessor:

                  (1) as soon as  available  and in any event  within fifty (50)
         days after the end of each of the first three  fiscal  quarters of each
         fiscal year of Lessee,  consolidated  balance  sheets of the Lessee and
         its  subsidiaries as of the end of such fiscal quarter and consolidated
         statements of operations of Lessee and its subsidiaries for such fiscal
         quarter and for the period commencing at the end of the previous fiscal
         year and ending with the end of such fiscal quarter, all in


<PAGE>


                                     - 20 -

          accordance with generally accepted accounting principles, certified by
          the chief financial officer of Lessee;

                  (2) as soon as  available  and in any  event  within  120 days
         after the end of each fiscal year of Lessee, a copy of the annual audit
         report for such fiscal year for Lessee and its subsidiaries,  including
         therein  consolidated  balance sheets of Lessee and its subsidiaries as
         of  the  end  of  such  fiscal  year  and  consolidated  statements  of
         operations of Lessee and its  subsidiaries for such fiscal year, all in
         accordance with generally accepted accounting principles,  in each case
         certified (without  qualification) by nationally recognized independent
         public  accountants,  to the effect  that,  in making  the  examination
         necessary  for the signing of such annual  report by such  accountants,
         they have not become aware of any Event of Default or Potential Default
         that has occurred and is  continuing,  or, if they have become aware of
         such Event of Default or Potential  Default,  describing  such Event of
         Default or Potential Default and the steps, if any, being taken to cure
         it;

                  (3) as soon as possible and in any event within five (5) days,
         in the case of an Event of Default, and ten (10) days, in the case of a
         Potential  Default,  after an  officer of Lessee  shall  have  obtained
         knowledge thereof, notice of the occurrence of such Event of Default or
         Potential  Default,  and a statement of the chief financial  officer of
         Lessee  setting  forth  details of such  Event of Default or  Potential
         Default and the action which Lessee has taken and proposes to take with
         respect thereto;

                  (4) prompt written notice of the filing or commencement of, or
         any  notice  of  intention  of any  individual  or  entity  to  file or
         commence,  any action, suit or proceeding,  whether at law or in equity
         or by or before any governmental  authority  against Lessee as to which
         there is a  reasonable  possibility  of an  adverse  determination  and
         which,  if adversely  determined,  could  result in a Material  Adverse
         Change or in the inability of Lessee to perform its  obligations  under
         any Fundamental Agreement;

                  (5) as soon as possible  and in any event within five (5) days
         after  receipt  thereof,  copies of any  material  notices  received by
         Lessee from Seller relating to  noncompliance  with any of the Purchase
         Documents; and

                  (6)  such  other  information   respecting  the  condition  or
         operations,   financial  or   otherwise,   of  Lessee  or  any  of  its
         subsidiaries  or  the  Equipment  as  Lessor  may  from  time  to  time
         reasonably request;  provided,  however, that any information which the
         Lessee regards as valuable and  confidential  and identified in writing
         as such by the Lessee (the "Confidential  Information") will be used by
         the Lessor solely for purposes of the transactions contemplated by this
         Agreement  and  the  other  Fundamental  Agreements  and  will  be kept
         confidential  by  Lessor  and  Lessor  will  not  disclose  any  of the
         Confidential  Information to any person or entity;  provided,  further,
         that  such  confidentiality  obligation  shall  not  apply  to (i)  any
         information disclosed to persons or entities employed by or expected to
         become  engaged in  evaluating,  approving,  structuring,  auditing  or
         administering  lease  transactions  hereunder  who agree to comply with
         this  confidentiality  provision,  including,  without limitation,  the
         Lessor's representatives,  attorneys, advisors, accountants, and rating
         agencies, (ii) any information which


<PAGE>


                                     - 21 -

         is or  becomes  available  to the Lessor  from a source  other than the
         Lessee or its  subsidiaries  (iii) any information  which is or becomes
         available to the public other than as a result of  disclosure by Lessor
         or its above-described  representatives or agents, (iv) any information
         required or  requested  by any  governmental  agency or  representative
         thereof  or  pursuant  to  legal  process,  or (v) any  information  in
         connection  with the exercise of any remedy under this  Agreement;  and
         provided,  further,  that  nothing  herein  shall  prevent  Lessor from
         disclosing such  information to any bona fide assignee,  or prospective
         assignee,  or any of their respective  representatives that have agreed
         to comply with this  confidentiality  provision in connection  with the
         contemplated assignment of any Schedule hereunder.
 .
                  (b) Merger or  Consolidation.  Lessee  shall not merge into or
consolidate  with any other entity unless (i) the surviving or successor  entity
expressly assumes in writing all of the obligations of Lessee  hereunder,  under
the Schedules and under the other Fundamental Agreements,  (ii) the surviving or
successor  entity  has a net  worth  determined  in  accordance  with  generally
accepted  accounting  principles,  after giving effect to such  consolidation or
merger at least equal to that of Lessee prior to such  consolidation  or merger,
(iii) no Event of Default or Potential Default shall occur or exist after giving
effect to such merger or consolidation, and (iv) at the sole cost and expense of
the surviving or successor entity,  the surviving or successor entity shall have
executed,   delivered  and  recorded  all  Uniform   Commercial  Code  Financing
Statements  and made such other  filings or  recordings  requested  by Lessor to
protect Lessor's ownership interest in the Equipment.

                  (c) Sale of Assets.  Lessee shall not sell, lease, transfer or
otherwise dispose of a substantial  portion of its assets for less than the fair
market value or fair market rental value, thereof, as applicable,  as determined
by the board of  directors  of Lessee in good faith and  certified in writing to
Lessor that such  determination  was made in the best business  judgment of such
board of directors.

                  (d) Corporate and Franchise  Existence.  Lessee shall preserve
and maintain its corporate existence,  rights,  franchises and privileges in its
jurisdiction of its organization,  and in all other  jurisdictions in which such
qualification  is necessary in view of its business and  operations and property
and  preserve,  protect and keep in full force and effect its rights,  licenses,
permits,  franchises,   authorizations,   patents,  trademarks,  copyrights  and
tradenames material to its business and to the use of the Equipment.

                  (e)  Compliance with Laws, Etc.  Lessee shall comply with all 
laws and regulations applicable to it and to the Equipment and all material
contractual obligations applicable to it and to the Equipment.

                  (f)  Obligations  and  Taxes.  Lessee  shall  pay  all  of its
indebtedness and obligations promptly and in accordance with their terms and pay
and discharge promptly all taxes, assessments and governmental charges or levies
imposed  upon it or upon its income or  profits  or in respect of its  property,
before the same shall become in default, as well as all lawful claims for labor,
materials and supplies or otherwise  which, if unpaid,  might become a lien upon
such properties or any part thereof; provided, however, that Lessee shall not be
required to pay and  discharge  or to cause to be paid and  discharged  any such
tax, assessment, charge, levy or claim so long as the validity or amount thereof
shall be contested in good faith by appropriate  proceedings diligently pursued,
and Lessee shall set aside


<PAGE>


                                     - 22 -

on its books such  reserves as are  required by  generally  accepted  accounting
principles with respect to any such tax,  assessment,  charge,  levy or claim so
contested.

                  23.  ASSIGNMENT BY LESSOR.  Lessor shall have the  unqualified
right to assign,  pledge,  transfer,  mortgage  or  otherwise  convey any of its
interests hereunder or in any Schedule, in whole but not in part, without notice
to, or consent of, Lessee to (1) any Permitted Assignee,  and (2) if an Event of
Default has occurred and Lessor is exercising any of its remedies hereunder,  to
any  person or entity.  A  Permitted  Assignee  shall be (1) any  subsidiary  or
affiliate  of  Lessor,  or (2) an  institutional  lender or  investor  (i) whose
business  includes  loans  or  leases  to  telecommunications  companies  or the
purchase of securities of telecommunications companies, (ii) which, in the event
Lessor's obligations to Lessee are being assumed by such Permitted Assignee, has
a tangible net worth determined in accordance with generally accepted accounting
principles of at least  $50,000,000 or provides a guaranty in form and substance
satisfactory  to Lessee of all of its  obligations to Lessee by an entity having
such  tangible  net worth,  and (iii)  which is not a  competitor  of either (1)
Lessee in the  telecommunications  market for the provision of competitive local
exchange services or (2) any telecommunications  long distance or inter-exchange
carrier  (solely  with respect to the market for  provision of long  distance or
telecommunications  services)  which is a  customer  of Lessee,  which  customer
accounted for more than five percent (5%) of Lessee's  consolidated  revenues in
its then most recent  four fiscal  quarters.  If a Permitted  Assignee  does not
assume Lessor's  obligations to Lessee with respect to the items of Equipment or
Schedule being assigned to such Permitted  Assignee,  then Lessor shall continue
to remain  liable to Lessee  for the  performance  of such  obligations.  If any
Schedule is assigned, Lessee shall: (a) unless otherwise specified by the Lessor
and the Permitted  Assignee  specified by Lessor,  pay all amounts due under the
applicable  Schedule to such Permitted  Assignee,  notwithstanding  any defense,
setoff  or  counterclaim  whatsoever  that  Lessee  may have  against  Lessor or
Permitted Assignee;  (b) not permit the applicable Schedule to be amended or the
terms  thereof  waived  without  the  prior  written  consent  of the  Permitted
Assignee;  (c) not require the Permitted  Assignee to perform any obligations of
Lessor, other than those that are expressly assumed in writing by such Permitted
Assignee;  and (d) execute such  acknowledgments  thereto as may be requested by
Lessor. It is further agreed that: (x) each Permitted Assignee shall be entitled
to all of Lessor's rights,  powers and privileges under the applicable Schedule,
to the extent assigned;  (y) any Permitted  Assignee may reassign its rights and
interests under the applicable  Schedule to another Permitted  Assignee with the
same force and effect as the assignment  described herein;  and (z) any payments
received by the  Permitted  Assignee  from Lessee with  respect to the  assigned
portion of the Schedule shall, to the extent thereof,  discharge the obligations
of Lessee to Lessor with respect to the assigned portion of the Schedule.

                  24.  ASSIGNMENT OR SUBLEASE BY LESSEE.  WITHOUT LESSOR'S PRIOR
WRITTEN  CONSENT,  LESSEE  SHALL NOT ASSIGN THIS  AGREEMENT  OR ANY  SCHEDULE OR
ASSIGN ITS RIGHTS IN OR SUBLET THE EQUIPMENT OR ANY INTEREST THEREIN;  provided,
however,  that as long as no Event of Default or Potential  Default has occurred
and is  continuing,  Lessee may  sublease or assign a Schedule to an  affiliate,
joint  venture or a  wholly-owned  subsidiary  of Lessee  that is an entity duly
organized under the laws of one of the states of the United States of America or
the District of Columbia and is not the subject of a bankruptcy proceeding if on
or  prior  to the date of such  sublease  or  assignment:  (a)  Lessee  and such
sublessee or assignee execute and deliver to Lessor a writing (to be provided by
Lessor if an assignment or in the


<PAGE>


                                     - 23 -

form of Exhibit A hereto if a sublease) whereby the sublessee or assignee agrees
to assume  joint and  several  liability  with  Lessee  for the full and  prompt
payment,  observance and  performance  when due of all of the obligations of the
Lessee  under such  Schedule;  (b) no such  assignment  or  sublease  causes the
affected  items of Equipment  to be  "tax-exempt  use  property" as such term is
defined in Section  168(h) of the Code;  (c) the term of any such  sublease does
not extend  beyond the then  Applicable  Term;  (d) any such  sublease  shall be
subject and subordinate to this Agreement and any applicable  Schedule and shall
be  consistent  with the  provisions  hereof and thereof;  (e) any such sublease
shall prohibit further subleasing; (f) Lessee at its sole cost and expense makes
all filings and recordations  requested by Lessor to protect Lessor's  ownership
interest in the affected items of Equipment; and (g) Lessee shall provide Lessor
with a landlord  waiver  substantially  in the form of Exhibit B attached hereto
with respect to each new Equipment  Location.  In no event,  however,  shall any
such sublease or assignment discharge or diminish any of Lessee's obligations to
Lessor under such Schedule. So long as no Event of Default exists and sublessees
are not in default of their sublease  obligations,  sublessees shall be entitled
to quiet  enjoyment  of the  items of  Equipment  they  have  subleased.  Lessor
acknowledges  that any  resale  of  capacity  to  customers  of Lessee or any of
Lessee's  affiliates  with respect to any Equipment or partitioning of Equipment
by  provision  of  dedicated  use  thereof to  customers  of Lessee or  Lessee's
affiliates shall not constitute an assignment or a sublease of a Schedule or any
Equipment. Lessee covenants and agrees that any such resale or partitioning will
be expressly subject to and subordinate to the terms of this Agreement.

                  25. SURVIVAL; QUIET ENJOYMENT. All representations, warranties
and covenants  made by Lessee  hereunder  shall survive the  termination of this
Agreement  and shall  remain in full force and effect.  All of Lessor's  rights,
privileges,  and  indemnities,  to the extent  they are fairly  attributable  to
events or  conditions  occurring or existing on or prior to the  termination  of
this Agreement,  shall survive such termination and be enforceable by Lessor and
any  successors  and  assigns.  So long as no Event of Default  exists,  neither
Lessor nor any Permitted  Assignee will interfere with Lessee's quiet  enjoyment
of the Equipment.

                  26.  TRUE LEASE; FILING FEES; FURTHER ASSURANCES; NOTICES.
Lessor and Lessee intend the  transactions  described herein and in any Schedule
to be a true  lease,  and  Lessee  hereby  authorizes  Lessor to file  financing
statements to give public notice of Lessor's ownership of the Equipment.  If any
such  transaction is deemed by a court of competent  jurisdiction  to be a lease
intended for security, to secure payment and performance of Lessee's obligations
under this  Agreement and any  Schedule,  Lessee grants Lessor and its assigns a
purchase  money  security  interest  in the  Equipment  and in all  attachments,
accessories,  additions,  substitutions,  products,  replacements,  rentals  and
proceeds (including insurance proceeds) (collectively, Collateral). Lessee shall
execute and timely deliver to Lessor financing statements or any other documents
Lessor deems necessary to perfect or protect Lessor's  security  interest in the
Collateral.  If Lessee  fails to execute any such  document,  Lessor or Lessor's
agent is hereby authorized to file any of the foregoing signed only by Lessor or
by Lessor's  agent.  Lessor or Lessor's agent may file as a financing  statement
any Fundamental  Agreement Lessor deems necessary to perfect or protect Lessor's
security  interest  in  the  Collateral,   and  Lessee  agrees  that  a  carbon,
photographic or other reproduction of any Fundamental Agreement or any financing
statement is sufficient as a financing statement. Lessee will promptly reimburse
Lessor for any filing or  recordation  fees or expenses  (including  lien search
fees,  legal fees and costs)  incurred by Lessor in perfecting or protecting its
interests in the Equipment and under this Agreement. Lessee shall promptly


<PAGE>


                                     - 24 -

execute and deliver to Lessor such  documents  and take such  further  action as
Lessor may from time to time reasonably request in order to carry out the intent
and purpose of this  Agreement  and to protect the rights and remedies of Lessor
created or intended to be created  hereunder.  All notices under this  Agreement
shall be sent to the respective party at its address set forth on the front page
of this Agreement or on the applicable  Schedule or at such other address as the
parties may provide to each other in writing from time to time.  Any such notice
mailed to said address  shall be effective  when  deposited in the United States
mail, duly addressed and with first class postage prepaid.

                  27. WAIVER OF JURY TRIAL;  SUCCESSORS.  LESSEE AND LESSOR EACH
IRREVOCABLY  WAIVE  ALL  RIGHT  TO  TRIAL  BY JURY IN ANY  LAWSUIT,  PROCEEDING,
COUNTERCLAIM  OR ANY OTHER  LITIGATION  OR PROCEEDING  UPON,  ARISING OUT OF, OR
RELATED TO THIS AGREEMENT,  ANY OTHER FUNDAMENTAL AGREEMENT,  OR THE DEALINGS OR
RELATIONSHIP BETWEEN OR AMONG LESSOR,  LESSEE,  SELLER OR ANY OTHER PERSON. This
Agreement  and all  Schedules  inure to the benefit of and are binding  upon the
permitted successors or assigns of Lessor and Lessee.

                  28. NO  WAIVER;  LESSOR  APPROVAL.  Any  failure  of Lessor to
require  strict  performance  by Lessee,  or any written waiver by Lessor of any
provision hereof,  shall not constitute consent or waiver of any other breach of
the same or any other  provision  hereof.  Neither this  Agreement nor any other
Fundamental  Agreement shall be binding upon Lessor unless and until executed by
Lessor.

                  29. CAPTIONS; COUNTERPARTS;  LESSOR'S AFFILIATES. The captions
contained in this  Agreement are for  convenience  only and shall not affect the
interpretation of this Agreement.  Only one counterpart of the Schedule shall be
marked "Original" (Original), and all other counterparts thereof shall be marked
as,  and shall be,  duplicates.  To the  extent  that any  Schedule  constitutes
chattel paper (as such term is defined in the Uniform  Commercial Code in effect
in any applicable  jurisdiction),  no security  interest in such Schedule may be
created  through the transfer or  possession of any  counterpart  other than the
Original.  Lessee  understands  and agrees that AT&T Capital  Corporation or any
affiliate or subsidiary  thereof may, as lessor,  execute  Schedules  under this
Agreement,  in which event the terms and conditions of the  applicable  Schedule
and this  Agreement  as it relates to the lessor  under such  Schedule  shall be
binding  upon and shall  inure to the  benefit  of such  entity  executing  such
Schedule as lessor, as well as any successors or assigns of such entity.

                  30.      CHOICE OF LAW; INTEGRATION; ENTIRE AGREEMENT.  EACH
LEASE UNDER THIS AGREEMENT SHALL BE GOVERNED BY THE INTERNAL LAWS (AS OPPOSED TO
CONFLICTS OF LAW PROVISIONS) OF THE STATE OF NEW JERSEY (STATE).  If any
provision of this Agreement or such Schedule shall be prohibited by or invalid
under that  law,  such  provision  shall be  ineffective  only to the  extent of
such prohibition or invalidity,  without invalidating the remainder of such
provision or the  remaining  provisions  of this  Agreement or such  Schedule.
Lessor and Lessee consent to the jurisdiction of any local,  state or Federal
court located within the State,  and waive any objection  relating to improper
venue or forum non  conveniens  to the  conduct  of any  proceeding  in any such
court.  This Agreement  and all other  Fundamental  Agreements  executed by both
Lessor and Lessee constitute the entire agreement between Lessor and Lessee
relating to the leasing of the Equipment, and supersede all prior agreements
relating


<PAGE>


                                     - 25 -

thereto, whether written or oral, and may not be amended or modified except in a
writing signed by the parties hereto.



<PAGE>




AMERICAN COMMUNICATIONS                      AT&T CREDIT CORPORATION
  SERVICES, INC.

/s/ RICHARD A. KOZAK
By: Richard A. Kozak
     (Lessee Authorized Signature)                (Lessor Authorized Signature)

/s/ RICHARD A. KOZAK                         /s/ EDWARD F. GROMEK
     C.E.O and President

(Type/Print Name)                                 (Type/Print Name)

- -------------------------------------        -----------------------------------
C.E.O. and President                         -----------------------------------
(Title)                                           (Title)

- -------------------------------------        -----------------------------------
August 26, 1996                              -----------------------------------
(Date)                                            (Date)





<TABLE>
<CAPTION>

                     American Communications Services, Inc.
             Exhibit 11.1 - Computation of Per Share Earnings (Loss)


                                                                                    Years Ended

                Net Loss                                           June 30, 1996                    June 30, 1995
               ----------                                          -------------                    -------------

<C>                                                                    <C>                               <C>         
1    Net Loss                                                          $ 26,782,044                      $ 14,697,649

2    Less: Preferred Stock Accretion                                      3,871,328                         1,070,985
                                                                          ---------                         ---------

3    Net Loss to Common Stockholders                                     30,653,372                        15,768,634

4    Add: Effect on Interest expense                                      2,301,864                           170,095
     Add: Convertible Preferred Dividends Saved                           3,871,328                         1,070,985

5    Net Loss to Common Stockholders, Anti-Dilutive                    $ 24,480,180                      $ 14,527,554
                                                                       ============                      ============
     Basis

            Average Shares Outstanding
            --------------------------

6    Weighted Average Number of Common Shares                             6,185,459                         4,771,689
     Outstanding

7    Net additional shares assuming stock options and                     9,133,070                         4,078,907
     warrants exercised and proceeds used first to
     purchase treasury shares to 20% of shares
     outstanding at year end, the balance to reduce long-
     term debt

8    Additional shares assuming conversion of preferred                  17,377,278                         5,264,492
                                                                         ----------                         ---------
     shares

9    Weighted average number of common and common                        32,695,807                        14,115,088
                                                                         ==========                        ==========
     equivalent shares outstanding

            Per Share Amounts
            -----------------

10   Net loss per common share as presented in                               $   4.96                          $   3.30
                                                                             ========                          ========
     statement of operations (3 / 6)

11   Net loss per share as antidilutive basis (5 / 9)                        $   0.75                          $   1.03
                                                                             ========                          ========
</TABLE>




EXHIBIT 21.1

SUBSIDIARIES OF THE COMPANY
All subsidiaries do business under their respective names listed below.

                                                               JURISDICTION OF
          NAME                                                   INCORPORATION
=====================                                              ===========

American Communication Services of Columbia, Inc.                     Delaware
American Communication Services of Fort Worth, Inc.                   Delaware
American Communication Services of Greenville, Inc.                   Delaware
American Communication Services of Little Rock, Inc.                  Delaware
American Communication Services of Louisville, Inc.                   Delaware
American Communication Services of Albuquerque, Inc.                  Delaware
American Communication Services of Charleston, Inc.                   Delaware
American Communication Services of Chattanooga, Inc.                  Delaware
American Communication Services of El Paso, Inc.                      Delaware
American Communication Services of Lexington, Inc.                    Delaware
American Communication Services of Pima County, Inc.                  Delaware
American Communication Services of Birmingham, Inc.                   Delaware
American Communication Services of Mobile, Inc.                       Delaware
American Communication Services of Austin, Inc.                       Delaware
American Communication Services of Knoxville, Inc.                    Delaware
American Communication Services of Louisiana, Inc.                    Delaware
ACSI Advanced Technologies, Inc.                                      Maryland
American Communication Services of Irving, Inc.                       Maryland
American Communication Services of Montgomery, Inc.                   Maryland
American Communication Services of Amarillo, Inc.                     Maryland
American Communication Services of Baton Rouge, Inc.                  Maryland
American Communication Services of Jackson, Inc.                      Maryland
American Communication Services of Spartanburg, Inc.                  Maryland
American Communication Services of Columbus, Inc.                     Maryland
American Communication Services of Las Vegas, Inc.                    Maryland
American Communication Services of Maryland, Inc.                     Maryland
American Communication Services of Corpus Christi, Inc.               Maryland
American Communication Services of Colorado Springs, Inc.             Maryland
American Communication Services of Jacksonville, Inc.                 Maryland
American Communication Services of Kansas City, Inc.                  Maryland
American Communication Services of Rio Rancho, Inc.                   Maryland
American Communication Services of Shreveport, Inc.                   Maryland
American Communication Services of Tulsa, Inc.                        Maryland





                                                                    Exhibit 23.1



                              Accountants' Consent



The Board of Directors
American Communications Services, Inc.:

We consent to  incorporation  by reference in the  registration  statement  (No.
33-99964) on Form S-8 and the registration  statement (No. 333-2008) on Form S-3
of American  Communications  Services,  Inc. of our report dated  September  27,
1996,  relating to the  consolidated  balance sheets of American  Communications
Services,  Inc.  as of June 30,  1996 and  1995,  and the  related  consolidated
statements of operations,  stockholders' equity (deficit) and cash flows for the
years then ended,  which  report  appears in the June 30, 1996 annual  report on
Form 10-KSB of American Communications Services, Inc.



                                                     /s/ KPMG PEAT MARWICK LLP
                                                     KPMG Peat Marwick LLP


Washington, DC
September 30, 1996


<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>
     (Replace this text with the legend)
</LEGEND>
<CIK>                         0000932140
<NAME>                        American Communications Services, Inc.
       
<S>                             <C>
<PERIOD-TYPE>                                           Year 
<FISCAL-YEAR-END>                              JUN-30-1996
<PERIOD-START>                                 JUL-01-1995
<PERIOD-END>                                   JUN-30-1996
<CASH>                                         $ 136,458,133 
<SECURITIES>                                               0 
<RECEIVABLES>                                        924,770 
<ALLOWANCES>                                        (189,510)
<INVENTORY>                                        1,003,465 
<CURRENT-ASSETS>                                 138,196,858 
<PP&E>                                            80,147,964 
<DEPRECIATION>                                    (3,408,698)
<TOTAL-ASSETS>                                   223,599,891 
<CURRENT-LIABILITIES>                             23,231,109 
<BONDS>                                          189,071,674 
                                186,664 
                                          277,500 
<COMMON>                                              65,837 
<OTHER-SE>                                        10,767,107 
<TOTAL-LIABILITY-AND-EQUITY>                     223,599,891 
<SALES>                                                    0 
<TOTAL-REVENUES>                                   3,415,137 
<CGS>                                              5,264,570 
<TOTAL-COSTS>                                     13,282,835 
<OTHER-EXPENSES>                                   1,404,538 
<LOSS-PROVISION>                                     180,940 
<INTEREST-EXPENSE>                                10,476,904 
<INCOME-PRETAX>                                  (27,194,650)
<INCOME-TAX>                                               0 
<INCOME-CONTINUING>                              (27,782,044)
<DISCONTINUED>                                             0 
<EXTRAORDINARY>                                            0 
<CHANGES>                                                  0 
<NET-INCOME>                                     (26,782,044)
<EPS-PRIMARY>                                          (4.96)
<EPS-DILUTED>                                              0 
                                                          
                                                         

</TABLE>




                                                                   EXHIBIT 99.1


                    CERTAIN FACTORS TO CONSIDER IN CONNECTION
                         WITH FORWARD LOOKING STATEMENTS


     Historical and Anticipated  Future Losses;  Negative Cash Flow. The Company
has never  been  profitable  and has  never  generated  positive  cash flow from
consolidated  operations.  As of June 30, 1996 the  Company  had an  accumulated
deficit of $47.5 million. Currently,  although the Company has begun to generate
revenue in 18 markets,  it has not yet generated  revenues in any other markets.
Until December 1994, when it recorded its first operating revenues,  the Company
was considered a development stage Company for accounting purposes. There can be
no assurance that the Company will achieve or sustain  profitability or positive
cash flow from operations in the future.

     The Company has incurred significant net operating losses and negative cash
flow to date in connection with  establishing  its fiber optic networks.  Losses
and  negative  cash flow will  continue  while the Company  concentrates  on the
development and  construction  of additional  fiber optic networks and until its
networks have  established a sufficient  revenue-generating  customer  base. The
Company will also incur losses during the initial  start-up  phases of its local
switched voice, enhanced voice messaging and high-speed data services. There can
be no assurance that an adequate  revenue base will be established or that these
services will generate  positive cash flow.  Continued  losses and negative cash
flow may prevent the Company from meeting its debt  obligations and pursuing its
strategies for growth.

     Rapid  Expansion of Operations;  Implementation  of Growth  Strategy.  ASCI
plans to continue to expand its  business  rapidly.  The Company  currently  has
commenced  service  in 18 of its target  markets,  and its goal is to have begun
service in all 50  contemplated  target  markets by the end of the calendar year
1998.  The  Company's  ability to manage its rapid  expansion  effectively  will
require it to continue to implement  and improve its  operating,  financial  and
accounting  systems, to attract and hire qualified personnel in each market, and
to expand,  train and manage  its  employee  base.  Delays in  constructing  any
network may  require  the Company to scale back the number of other  networks it
expects to build within a given time frame.  There can be no assurance  that the
Company  will be able to  implement  its growth  strategy or manage its expanded
operations effectively.  Any failure to do so may have a material adverse effect
on the Company's business, results of operations and financial condition.

     As part of its strategy, ACSI plans to expand the range of services that it
offers.  The Company is  developing  and has begun  offering on a limited  basis
high-speed  data and enhanced  voice  messaging  services  and,  upon receipt of
requisite  regulatory  approvals and where cost effective,  plans to offer local
switched voice services in certain of its markets  beginning in late 1996. These
are  services  that the  Company  has not  previously  offered.  There can be no
assurance  that a market will  develop for these  services,  that the  Company's
implementation  will be technically or economically  feasible,  that the Company
will be able to develop or market them successfully, or that the Company will be
able to operate and maintain these services profitably.


                                      - 1 -

<PAGE>



     Substantial  Leverage,  Future  Cash  Obligations.   Since  inception,  the
Company's consolidated cash flow from operations has been negative. As a result,
the Company has been  required to pay its fixed charges  (including  interest on
existing  indebtedness)  and operating  expenses with the proceeds from sales of
its debt and equity  securities.  As of June 30, 1996, the Company  (through its
subsidiaries)  had  approximately  $15.0  million  in debt  outstanding  under a
secured  credit   facility  (the  "AT&T  Credit   Facility")  with  AT&T  Credit
Corporation,  a subsidiary of AT&T. The maximum  potential  borrowings under the
AT&T Credit Facility is approximately  $31.3 million.  Borrowings under the AT&T
Credit Facility may be used to fund the  construction  and operation of only six
of the Company's 50 contemplated  networks.  With the issuance of $190.0 million
principal  amount of the Company's 13% Senior Discount Notes due 2005 (the "2005
Notes") and the issuance of $120.0 million  principal amount of the Company's 12
3/4% Senior Discount Notes due 2006 (the "2006 Notes," and collectively with the
2005 Notes, the "Notes"),  the Company will be required to satisfy substantially
higher periodic cash debt service  obligations in the future.  Commencing in the
year  2001,  cash  interest  on the 2005  Notes and 2006  Notes  will be payable
semi-annually  at the rate of 13% per annum  (approximately  $24.7  million  per
year)  and  12  3/4%  per  annum   (approximately   $15.3   million  per  year),
respectively.  The full  accredited,  value of the 2005  Notes and 2006 Notes of
$190.0 million and $120.0 million, respectively,  will become due on November 1,
2005 and April 1, 2006,  respectively.  As of June 30,  1996,  the  Company  had
approximately  $184.4  million  of  outstanding  long-term  indebtedness.  It is
expected   that  the  Company  and  it   subsidiaries   will  incur   additional
indebtedness, including increasing its borrowings under the AT&T Credit Facility
to the  maximum  amount,  which  would be  possible  provided  the  Company  can
successfully  raise additional equity capital.  Many factors,  some of which are
beyond the Company's control,  will affect its performance and,  therefore,  its
ability to meet its ongoing  obligations  to repay the Notes and its other debt.
There can be no assurance  that the Company will be able to generate  sufficient
cash  flow or  otherwise  obtain  funds  in the  future  to cover  interest  and
principal payments associated with the Notes and its other debt.

     Certain Financial and Operating Restrictions.  The Indenture dated November
14, 1995  pursuant to which the 2005 Notes were issued and the  Indenture  dated
March 21, 1996 pursuant to which the 2006 Notes were issued  (collectively,  the
"Indentures")  and the AT&T Credit  Facility,  impose  operating  and  financial
restrictions on the Company and its subsidiaries. These restrictions affect, and
in certain  cases  significantly  limit or  prohibit,  among other  things,  the
ability of the Company or its subsidiaries to incur  additional  indebtedness or
create liens on its assets,  pay  dividends,  sell assets,  engage in mergers or
acquisitions  or  make  investments.   Failure  to  comply  with  any  of  these
restrictions  could limit the  availability  of borrowing or result in a default
thereunder.

     Significant   Future   Capital   Requirements.   The  Company's   continued
development,  construction,  expansion,  operation and potential  acquisition of
fiber optic networks, as well as the further development and introduction of new
services,  including  local switched  voice,  enhanced voice  messaging and high
speed  data  services,  will  require  substantial  capable  expenditures.   The
Company's  ability to fund these  expenditures  is dependent  upon the Company's
raising  substantial  financing.  To date, the Company has raised  approximately
$202.6  million in debt and equity  financing and obtained  approximately  $31.2
million in financing commitments from the AT&T Credit Facility.  The Company has
estimated  that from July 1, 1996  through  the end of the  calendar  year 1998,
capital  requirements for implementation of the Company's 50 city business plan,
including  the  development  and  construction  of  fiber  optic  networks,  the
deployment of a broadband inter-city data communications network and development
and introduction of new services, such as local switched voice,

                                      - 2 -

<PAGE>



enhanced voice messaging and high-speed data services,  and for expansion of the
Company's existing networks, are approximately $410.9 million. At June 30, 1996,
the  Company  had  approximately  $132.7  million  of cash and cash  equivalents
available for the  completion of its planned  networks.  To meet its  additional
remaining capital requirements,  the Company may sell additional equity for debt
securities or increase its existing credit facility. Before incurring additional
indebtedness,  the  Company  may be  required  to seek  such  additional  equity
financing to maintain  balance sheet and liquidity ratios required under certain
of its debt instruments. In addition, the Company in the past has considered and
expects to  continue  to  consider  potential  acquisitions  or other  strategic
arrangements that may fit the Company's strategic plan. Although the Company has
had discussions concerning such potential acquisitions or arrangements,  to date
no agreements have been reached with regard to any particular  transaction.  Any
such acquisitions or strategic  arrangements that the Company might consider are
likely to require  additional  equity or debt financing,  which the Company will
seek to obtain as required. Failure to raise sufficient capital could compel the
Company  to delay or  abandon  some or all of its plans or  expenditures,  which
could have material  adverse  effect on its business,  results of operations and
financial condition. Also, the terms of any debt or equity capital raised by the
Company in the future could restrict the Company's  operational  flexibility and
ability to raise additional  capital and thereby  adversely affect the Company's
business, results of operations and financial condition.

     Business Combinations; Strategic Investments. The Company from time to time
engages in preliminary  discussions with (i) potential strategic investors (i.e.
investors  in the same or related  business)  who have  expressed an interest in
making an  investment in or acquiring  the Company and (ii)  potential  business
partners  looking  toward  formation  of  business   combinations  or  strategic
alliances that would expand the reach of the Company's networks or services.  In
addition to providing  additional  growth capital,  the Company believes that an
alliance  with an  appropriate  strategic  investor  or business  partner  could
provide  operating  synergies to, and enhance the competitive  position of, both
ACSI  and  such   strategic   investor/business   partner   within  the  rapidly
consolidating  telecommunications  industry.  There can be no assurance that any
agreement  with any  potential  strategic  investor or business  partner will be
reached on terms acceptable to the Company nor does the Company believe that any
such  investment,  business  combination or strategic  alliance is necessary for
successful   consummation  of  its  strategic  plan.  An  investment,   business
combination  or  strategic  alliance  could  constitute  a Change of Control (as
defined  in the  Indentures)  requiring  the  Company to offer to  purchase  all
outstanding  Notes.  In the event that such a Change of Control occurs at a time
when the Company does not have sufficient  available funds to purchase all Notes
tendered or a time when the Company is prohibited  from purchasing the Notes, an
Event  of  Default  (as  defined  in  the  Indentures)  could  occur  under  the
Indentures.  However,  the Company  currently has no agreement,  arrangement  or
understanding  with any  potential  strategic  investor  or  potential  business
partner  with  respect to any  acquisition,  business  combination  or strategic
alliance.


     Effect of  Regulation.  As a common  carrier,  the  Company  is  subject to
substantial  federal,  state and local  regulation.  The  Company's  fiber optic
networks do not require authorization from the Federal Communications Commission
for construction or installation. However, the Company must file tariffs stating
its rates, terms and conditions of service for interstate traffic,  although the
FCC has proposed  adopting  rules which would  preclude IXCs from filing tariffs
and is  considering  a request that the  proposed  rules also be  applicable  to
CLECs. State regulatory agencies regulate intrastate communications, while local
authorities control the Company's access to and use of municipal  rights-of-way.
The  Telecommunications  Act  preempted  all state and local legal  requirements
which prohibit or have the effect of prohibiting any entity from providing any

                                      - 3 -

<PAGE>



intrastate  telecommunications service. However, many states continue to require
telecommunications carriers to obtain a certificate,  license, permit or similar
approval  before  providing  services.  Thus,  the Company's  ability to provide
additional  intrastate services is dependent upon its receipt of requisite state
regulatory approval.  The inability to obtain the approvals necessary to provide
intrastate switched services could have material adverse effect on the Company's
business,   results  of  operations  and  financial  condition.   Moreover,  the
Telecommunications Act has increased local competition by IXCs, cable television
service  providers  ("CATVs")  and public  utility  companies,  which may have a
material adverse effect on the Company. In addition,  the Telecommunications Act
has granted important benefits to the LECs, including providing LECs substantial
new pricing flexibility, restoring the ability of RBOCs to provide long distance
services and allowing RBOCs to provide certain cable television services.  These
changes  will tend to enhance the  competitive  position of the LECs,  which may
materially adversely affect the Company.  Furthermore, no assurance can be given
that  court  decisions  or  changes  in  current  or  future  federal  or  state
legislation or regulations would not materially adversely affect the Company.

     Internet-related services are not currently subject to direct regulation by
the FCC or any other U.S. agency other than regulation  applicable to businesses
generally.  The FCC  recently  requested  comments  on a  petition  filed by the
America's  Carriers  Telecommunication  Association  which requests that the FCC
regulate  certain voice  transmissions  over the Internet as  telecommunications
services.    Changes   in   the   regulatory   environment   relating   to   the
telecommunications  or Internet-related  services industry could have an adverse
effect   on   the   Company's    Internet-related    services   business.    The
Telecommunications Act may permit telecommunications  companies, RBOCs or others
to increase the scope or reduce the cost of their Internet access services.  The
Company cannot predict the effect that the Telecommunications Act or any further
legislation, regulation or regulatory changes may have on its business

     Competition.  The Company operates in a highly competitive  environment for
all of its services.  An increasing trend toward strategic business alliances in
the telecommunications industry may create significant new competition for ACSI.

     Dedicated and Switched Voice  Services.  The Company's  competitors in this
market are predominantly LECs, other CLECs and CATVs and may potentially include
microwave carriers,  satellite carriers,  teleports, public utilities,  wireless
telecommunications  providers,  IXCs,  integrated  communications  providers and
private   networks   built  by  large  end  users.   With  the  passage  of  the
Telecommunications Act and the entry of RBOCs into the long distance market, the
Company  believes  that IXCs may  construct  their own local  facilities  and/or
resell  local  services  in order to  compete  with the  bundled  local and long
distance   services   to  be   offered   by  the  LECs  and  a  result   of  the
Telecommunications  Act.  Given  that a  substantial  portion  of the  Company's
revenues  are  billed to IXCs for  services  provided  for the  benefit of their
customers, such action could have a material adverse effect on the Company.

     Currently,  the Company  does not have a  significant  market  share in any
market.   Most  of  the  Company's   actual  and  potential   competitors   have
substantially  greater  financial,  technical and marketing  resources  than the
Company.  In  particular,  LECs  have  long-standing  relationships  with  their
customers, have the potential to subsidize access services with monopoly service
revenue and benefit from certain existing  federal,  state and local regulations
that the Company believes, in certain respects, favor LECs over the Company. For
example,  the  interconnection  decisions issued by the FCC in 1992 and 1993 and
the Telecommunications Act, which

                                      - 4 -

<PAGE>



allow CLECs to  interconnect  with LECs'  facilities,  have been  accompanied by
increased  pricing  flexibility and partially  relaxed  regulatory  oversight of
LECs.  The Company  expects  that LECs will offer time and volume  discounts  to
customers,  which will further  increase  competition  for the Company and other
CLECs and which  could  significantly  adversely  affect  the  Company's  future
dedicated services revenues.  Moreover, some LECs impose reconfiguration charges
on  customers  seeking  to  shift  their  traffic  from LEC  facilities  to CLEC
facilities,  which may have an  adverse  effect on a CLEC's  ability  to attract
these customers.

     The Company  expects  that other CLECs may operate in most,  if not all, of
the markets targeted by the Company and many of these markets may not be able to
support multiple CLECs.  Additionally,  delays in constructing any network could
adversely affect the Company's competitive position in markets where another CAP
or  CLEC  has a  network  under  construction  or  can  provide  services  on an
already-existing  network.  There can be no  assurance  that the Company will be
able to achieve or maintain  an adequate  market  share,  maintain  construction
schedules or compete effectively in any of its markets.

     Data Services.  The market for data communications  services,  including IP
switching,  is extremely competitive.  The are no substantial barriers to entry,
and the Company  expects that  competition  will  intensify  in the future.  The
Company believes that its ability to compete successfully depends on a number of
factors,  including  market  presence;  the ability to execute a rapid expansion
strategy; the capacity, reliability and security of this network infrastructure;
ease of access to and  navigation of the Internet;  the pricing  policies of its
competitors  and suppliers;  the timing of the  introduction of new products and
services by the Company and its  competitors;  the Company's  ability to support
industry  standards;  and industry and general  economic  trends.  The Company's
success in this  matter  will depend  heavily  upon its ability to provide  high
quality Internet  connectively and value-added  Internet services at competitive
prices.

     Dependence  on a Small Number of Major  Customers.  The Company  receives a
significant  portion  of its  revenue  from a small  number of major  customers,
particularly  the IXCs that serve the  Company's  markets.  For the fiscal  year
ended  June  30,  1996,   approximately  60%  of  the  Company's  revenues  were
attributable to dedicated access services  provided to four of the largest IXCs,
respectively,  including  services  provided for the benefit of their customers.
The Company is, and expects to continue to be,  dependent  upon such  customers,
and the loss of any one of them  could  have a  material  adverse  effect on the
Company's   business,   results  of   operations   and   financial   conditions.
Additionally,  customers who account for  significant  portions of the Company's
revenues may have the ability to  negotiate  prices for the  Company's  services
that are more  favorable to the customer and that result in lower profit margins
for the Company. The Telecommunications Act may also encourage IXCs to construct
their  own  local  facilities   and/or  resell  the  local  services  of  ACSI's
competitors, which may materially adversely affect the Company.

     Limited  Operating  Revenues;  Limited  Marketing  and  Operating  Efforts.
Although the Company has begun to generate operating revenues in 18 markets,  it
has not yet  commenced  operations  or generated  revenue in its other  targeted
markets. The Company will be required to expand its marketing efforts to attract
customers as its networks  are being built in each market.  Additional  staffing
will be required to manage future administrative, operating, marketing and sales
functions  effectively.  Failure to obtain significant and widespread commercial
and public  acceptance  of its  networks  and access to certain  buildings  in a
market  could  jeopardize  the  Company's  ability to remain in business in that
market. There can be no assurance that the

                                      - 5 -

<PAGE>



Company will be able to secure  customers for the commercial use of its proposed
networks or access to buildings in each market.

     Impact of Technological Change. The telecommunications  industry is subject
to rapid and significant  technological  change that could materially affect the
continued use of fiber optic cable or the electronics  utilized in the Company's
networks.  Although  the  affect of  technological  changes,  including  changes
related  to the  emerging  wireline  and  wireless  transmission  and  switching
technologies,  on the future  business of the Company  cannot be  predicted,  it
could have a  material  adverse  effect on the  Company's  business,  results of
operations and financial condition.

     The market for the  Company's  telecommunications  products and services is
characterized  by rapidly  changing  technology,  evolving  industry  standards,
emerging competition and frequent new product and service  introductions.  There
can be so assurance that the Company will successfully  identify new product and
service opportunities and develop and bring new products and services to market.
The   Company   is  also  at  risk   from   fundamental   changes   in  the  way
telecommunications  services are  marketed and  delivered.  The  Company's  data
communications  service  strategy  assumes that the TCP/IP,  frame relay and ATM
protocols,   utilizing   fiber   optic   or   cooper-based    telecommunications
infrastructures,  will  continue  to be  the  primary  protocols  and  transport
infrastructures  for data  communications  services.  The  Company's  pursuit of
necessary  technological  advances may require substantial time and expense, and
there  can be no  assurance  that the  Company  will  succeed  in  adapting  its
telecommunications  services business to alternate access devices,  conduits and
protocols.

     Dependence on Rights-of-Way and Other Third Party  Agreements.  The Company
must obtain  easements,  rights-of-way,  franchises and licenses  (collectively,
"local   approvals")  from  various  private   parties,   actual  and  potential
competitors  and local  governments in order to construct and maintain its fiber
optic  networks.  The Company has  obtained  the local  approvals  necessary  to
construct and operate its networks in the central  business  districts of all of
the markets in which the Company's  digital  fiber optic  networks are presently
operating  or are under  construction.  The Company does not yet have all of the
local  approvals  required to implement  its business  plan in  prospective  new
markets,  and there can be no assurance  that the Company will be able to obtain
and maintain  local  approvals on acceptable  terms or that other CLECs will not
obtain  similar  local  approvals  that will allow them to compete  against  the
Company or enter a market before the Company.  Some of the  agreements for local
approvals  obtained by the Company may be short-term,  or revocable at will, and
there  can be no  assurance  that the  Company  will  have  continued  access to
existing  rights-of-way and franchises after their  expiration.  If any of these
agreements were terminated or could not be renewed and the Company was forced to
remove  its fiber  from the  streets  or  abandon  its  network  in place,  such
termination would be likely to have a materially adverse effect on the Company's
business, results of operations and financial condition.

     As a condition to allowing use of rights-of-way  or granting  franchises to
the Company,  certain local governments  require the Company to post performance
bonds or letters of credit and to pay ongoing fees based upon the gross revenues
generated by, or linear  footage of, the  applicable  network.  In many markets,
LECs are not required to pay such fees or pay substantially less than those paid
by the Company  which may put the Company at a competitive  disadvantage  in its
markets.


                                      - 6 -

<PAGE>



     Potential  Liability of Internet  Access  Providers.  The law governing the
liability of on-line  services  providers  and  Internet  access  providers  for
participating  in the hosting or  transmission  of  objectionable  materials  or
information  currently is unsettled.  Under the terms of the  Telecommunications
Act, both civil and criminal penalties can be imposed for the use of interactive
computer   services  for  the   transmission  of  certain  indecent  or  obscene
communications.  While this  provision  has been stayed by a federal court while
its  constitutionality  is being  considered,  many states  have  adopted or are
considering adopting similar requirements. In addition, several private lawsuits
have been filed  seeking  to hold  Internet  access  providers  accountable  for
information  which they transmit.  In one such case pending in the United States
District  Court  for  the  Northern  District  of  California,   i.e.  Religious
Technology  Center v. NETCOM On-Line  Communications  Services,  Inc., the court
ruled that an Internet  access  provider can  potentially be held liable for the
copyright infringement committed by its subscribers.  While the outcome of these
activities  is  uncertain,  the ultimate  imposition  of potential  liability on
Internet  access  providers  for  information  which  they host,  distribute  or
transport could materially change the way they must conduct  business.  To avoid
undue exposure to such liability, Internet access providers will be compelled to
engage in burdensome  investigation of subscriber  materials or even discontinue
offering the service all together.

     Dependence Upon Network  Infrastructure,  Risk of System Failure;  Security
Risks.  The  Company's  success  in  marketing  its  services  to  business  and
government  users  requires  that  the  Company  provide  superior  reliability,
capacity and security via its network infrastructure. The Company's networks are
subject to physical damage, power loss, capacity limitations,  software defects,
breaches of security  (by computer  virus,  break-ins  or  otherwise)  and other
factors,  certain  of which may  cause,  interruptions  in  service  or  reduced
capacity for the customers.  Interruptions in service,  capacity  limitations or
security  breaches  could  have a  material  adverse  effect  on  the  Company's
business, financial condition and results of operations.

     Dependence Upon Suppliers;  Sole and Limited Sources of Supply. The Company
relies on other  companies  to supply  certain  key  components  of its  network
infrastructure,  including telecommunications services and networking equipment,
which, in the quantities and quality demanded by the Company, are available only
from sole or limited sources. The Company is also dependent upon IECs to provide
telecommunications  services to the Company and its  customers.  The Company has
from time to time experienced delays in receiving  telecommunications  services,
and there  can be no  assurance  that the  Company  will be able to obtain  such
services on the scale and within the time  frames  required by the Company at an
affordable  cost,  or at all. Any failure to obtain such  services or additional
capacity  on a timely  basis at an  affordable  cost,  or at all,  would  have a
material  adverse  effect on the  Company's  business,  financial  condition and
results of operations.  The Company also is dependent on its suppliers'  ability
to provide  necessary  products and components that comply with various Internet
and  telecommunications  standards,  inter- operate with products and components
from other  vendors  and  function  as intended  when  installed  as part of the
network  infrastructure.  Any failure of the  Company's  sole or limited  source
suppliers to provide products or components that comply with Internet standards,
interoperate  with  other  products  or  components  used by the  Company in its
network infrastructure or by its customers or fulfill their intended function as
part of the network  infrastructure  could have a material adverse effect on the
Company's business, financial condition and results of operations.

     Dependence on Key  Personnel.  The Company is currently  managed by a small
number of key  management  and operating  personnel,  whose efforts will largely
determine the Company's success. The success

                                      - 7 -

<PAGE>


of the  Company  also  depends  upon its  ability to hire and  retain  qualified
operating,  marketing and financial and  technical  personnel.  Competition  for
qualified  personnel  in  the   telecommunications   industry  is  intense  and,
accordingly, there can be no assurance that the Company will be able to continue
to hire or retain  necessary  personnel.  The loss of key management  personnel,
particularly Anthony J. Pompliano,  the Company's Chairman, or Richard A. Kozak,
its President and Chief Executive Officer,  would likely have a material adverse
effect on the Company.


                                      - 8 -

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