ILLUMINET HOLDINGS INC
10KSB, 1998-03-31
TELEPHONE COMMUNICATIONS (NO RADIOTELEPHONE)
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                  U.S. SECURITIES AND EXCHANGE COMMISSION
                           WASHINGTON, D.C. 20549

                                FORM 10-KSB

(Mark One)

/X/  Annual report under Section 13 or 15(d) of the Securities and
     Exchange Act of 1934

             For the fiscal year ended December 31, 1997

/  /  Transition report under Section 13 or 15(d) of the Securities and
      Exchange Act of 1934
      For the transition period from        to


                       COMMISSION FILE NUMBER 33-97876


                             ILLUMINET HOLDINGS, INC.
        (Exact name of small business issuer as specified in its charter)


       Delaware                                      36-4042177
(State or other jurisdiction                     (I.R.S. Employer
of incorporation or organization)                Identification No.)


 4501 Intelco Loop, Lacey, Washington                    98503
(Address of principal executive office)               (Zip code)

                                 (360) 493-6000
                (Issuer's telephone number, including area code)

Securities registered under Section 12(b) of the Exchange Act:  None
Securities registered under Section 12(g) of the Exchange Act:  None

Check whether the issuer:  (1) filed all reports required to be filed by Section
13 or 15(d) of the  Exchange  Act during the past 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 past 90 days. Yes X   No __

Check 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  registrant's   knowledge,  in  definitive  proxy  or  information
statements  incorporated  by  reference  in Part III of this Form  10-KSB or any
amendment to this Form 10-KSB. [X]

      State issuer's revenues for its most recent fiscal year. $54,308,057



                                        1


<PAGE>



Voting stock held by  non-affiliates  has no currently  quoted market value.  No
voting stock held by non-affiliates has been the subject of bid or ask prices in
the past 60 days.

At December  31, 1997,  5,347,081  shares of common  stock,  $0.01 per share par
value were outstanding.

Transitional Small Business Disclosure Format (check one):  Yes __  No  X


                                        2


<PAGE>



                         ILLUMINET HOLDINGS, INC.
                    INDEX TO 10-KSB FOR THE FISCAL
                     YEAR ENDED DECEMBER 31, 1997


PAGE

- ----
                                     PART I

ITEM 1:       DESCRIPTION OF BUSINESS                                        3

ITEM 2:       DESCRIPTION OF PROPERTY                                        4

ITEM 3:       LEGAL PROCEEDINGS                                              5

ITEM 4:       SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS            5

                                     PART II

ITEM 5:       MARKET FOR COMMON EQUITY AND RELATED STOCKHOLDER MATTERS       6

ITEM 6:       MANAGEMENT'S DISCUSSION AND ANALYSIS OR PLAN OF OPERATIONS     6

ITEM 7:       FINANCIAL STATEMENTS

     Illuminet Holdings, Inc. Consolidated Balance Sheets -
       December 31, 1997 and 1996                                           12
     Illuminet Holdings, Inc. Consolidated Statements of Income -
       Years ended December 31, 1997 and 1996                               14
     Illuminet Holdings, Inc. Consolidated Statements of Shareholders'
       Equity - Years ended December 31, 1997 and 1996                      15
     Illuminet Holdings, Inc. Consolidated Statements of Cash Flows -
       Years ended December 31, 1997 and 1996                               16
     Notes to Consolidated Financial Statements - December 31, 1997         17
       Report of Ernst & Young LLP, Independent Auditors                    28

ITEM 8:       CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING
              AND FINANCIAL DISCLOSURE                                      28

                                    PART III

ITEM 9:       DIRECTORS, EXECUTIVE OFFICERS, PROMOTERS AND CONTROL PERSONS;
              COMPLIANCE WITH SECTION 16(a) OF THE EXCHANGE ACT             29



                                        3


<PAGE>



ITEM 10:      EXECUTIVE COMPENSATION                                        34

ITEM 11:      SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS
               AND MANAGEMENT                                               39

ITEM 12:      CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS                43

ITEM 13:      EXHIBITS, LIST AND REPORTS ON FORM 8-K                        44

SIGNATURES                                                                  47


                                        4


<PAGE>



                                     PART I


ITEM 1:   DESCRIPTION OF BUSINESS

Illuminet  Holdings,  Inc. (formerly USTN Holdings,  Inc.), and its wholly-owned
subsidiary  Illuminet,  Inc.  (formerly  USTN  Services,  Inc.),   (collectively
referred to as "ILLUMINET") were incorporated in the State of Delaware on August
2, 1995 to effect the merger of U.S. Intelco Holdings, Inc. ("U.S. Intelco") and
Independent  Telecommunications  Network, Inc. ("ITN"). In accordance with terms
of the merger,  U.S.  Intelco and ITN merged  with and into  Illuminet,  Inc. on
February 23, 1996 (the "Merger").

The Merger was accounted for as a purchase  business  combination  in accordance
with generally  accepted  accounting  principles with U.S. Intelco designated as
the acquiring company.  Accordingly,  the consolidated  statements of income and
cash flows for the year ended  December  31, 1996  presented in this Form 10-KSB
include  the  results  of ITN's  operations  prospectively  from the date of the
Merger. The pro forma information  presented in the Management's  Discussion and
Analysis or Plan of  Operations  item  reflects the combined  activities of U.S.
Intelco and ITN as if the Merger had occurred effective January 1, 1996.

ILLUMINET is engaged in the  business of  developing,  managing and  marketing a
Signaling  System 7 ("SS7")  network and related  products and services based on
SS7 technology to the entire telecommunications  marketplace,  including network
services  and other  products  and  services to the  cellular  market.  SS7 is a
telecommunications  industry-standard system of protocols and procedures that is
used to control  telephone  communications  and provide  routing  information in
association with vertical calling  features,  such as card validation,  Advanced
Intelligent  Network  ("AIN")  services,  Local  Number  Portability,   cellular
services,  800 Number  Portability,  and Calling  Name  Delivery.  Additionally,
ILLUMINET provides advanced data base services, billing-and-collection services,
calling card services,  and network traffic  tracking and  measurement  software
products to a range of  telephone  companies as well as  interexchange  carriers
("Carriers"),  operator service providers ("OSPs") and other  telecommunications
companies  and providers of  telecommunications  services.  ILLUMINET  primarily
provides  services to  companies  in the  telecommunications  industry  that are
located  throughout the United States and considers all of its operations as one
segment.

Competition

     The  advanced  data base,  billing  and  collection,  calling  card and SS7
network  services  offered  by  ILLUMINET  are  offered  by a  number  of  other
companies. In the area of  billing-and-collection  services,  ILLUMINET competes
with Independent NECA Services, a New Jersey-based company. Each of the Regional
Bell Operating  Companies  ("RBOCs") created by the AT&T break-up,  Southern New
England  Telephone  Company  ("SNET"),   Sprint  Corporation   ("Sprint"),   MCI
Communications  Corporation  ("MCI"),  and GTE Corporation  ("GTE") operate line
information data bases and SS7 networks that are in competition with ILLUMINET's
services. In addition, a few state  telecommunications  associations have formed
intrastate networks to provide services to member companies. These are primarily
equal access and facilities networks;


                                       5


<PAGE>



however,   their   associations   with  carriers  could  allow  these  statewide
associations to offer competing  calling card and marketing  services on a local
level.

     Although  ILLUMINET's  network  may be similar  to the other SS7  networks,
ILLUMINET believes its network offers its customers significant advantages apart
from the technology. The focus of ILLUMINET's network offerings is on carrier to
carrier  services  and  excludes  any  service  to the  public.  As  such,  this
neutrality  allows  carrier  customers  the  incentive to provide  viewpoints on
services  offered by the network and the timing of the delivery of such services
without the concern of aiding their competitors.

Regulation

     ILLUMINET does not provide voice-grade or data telecommunications  services
to the public.  ILLUMINET  will  provide  facilities  and  services on a private
contractual  basis to other  entities in the  telecommunications  industry which
will utilize the services and  facilities in their  provision of both  regulated
and nonregulated  telecommunications  services. In as much as ILLUMINET does not
provide voice-grade or data common carrier  telecommunications  services,  it is
anticipated  that the provision of facilities and services by ILLUMINET will not
be subject to regulation by the FCC or state public utility commissions.

Suppliers

     Certain aspects of ILLUMINET's  services  incorporate  services or products
provided by third  parties.  For  example,  a regional  Bell  operating  company
("RBOC") provides the data base used in ILLUMINET's 800 data base services which
allow  carriers  to query an 800  data  base to  obtain  screening  and  routing
information  for  originating 800 calls.  Additionally,  several  inter-exchange
carriers  provide data  transmission  lines that are integral to ILLUMINET's SS7
network.  The providers of these services are not the only available  sources of
such services. Consequently, ILLUMINET believes that if necessary, such services
can be obtained from alternative vendors at competitive rates.

Intellectual Property

     ILLUMINET  relies on a combination of copyright,  trademark,  trade secret,
unfair   competition   and  other   intellectual   property   laws,   a  patent,
confidentiality procedures and contractual provisions to protect its proprietary
rights,  the most  significant of which is  ILLUMINET's  patent on network usage
measurement.  Such  protections,   however,  may  not  be  adequate  to  prevent
misappropriation   of  such  rights  and  may  not  preclude   competitors  from
independently   developing  services  similar  to  ILLUMINET's   services.   The
technology  underlying  ILLUMINET's  patent is a usage measurement  system for a
telephone signaling network. The patent will expire on January 18, 2010. As part
of a patent  settlement  arrangement,  ILLUMINET  has  granted a  third-party  a
non-exclusive,  irrevocable,  fully paid license to make, have made, sell, offer
to sell and/or use products, systems, methods and/or processes under the patent.
The license granted to the third-party does not include any right of third-party
in or to any particular  technology of ILLUMINET which embodies the patent, such
as ILLUMINET's INMART or AMAT7(R) software. From time to time ILLUMINET receives
or  solicits  inquiries  for the sale or  licensing  of certain  of its  assets,
including the patent, which it will consider on a case-by-case basis.


                                        6


<PAGE>




Employees

     As of December 31, 1997, ILLUMINET had 233 full-time employees.


ITEM 2:   DESCRIPTION OF PROPERTY

     ILLUMINET's headquarters and a portion of its operations center are located
in Lacey, Washington, where it owns a 70,000 square foot facility. The building,
approximately  13.7  acres of land on which the  building  is  constructed,  and
certain of  ILLUMINET's  computer  hardware  and  software are financed by Rural
Telephone  Finance  Cooperative  ("RTFC").  RTFC  has a first  priority  lien on
substantially all of ILLUMINET's assets,  revenues and property,  excluding cash
collected  and held on  behalf  of others  in the  normal  course  of  providing
ILLUMINET's services.

     ILLUMINET  also leases 18,683 square feet of office space in Overland Park,
Kansas,  where in addition  to certain  selling  and  administrative  functions,
ILLUMINET has its Network  Surveillance and Control Center (NSCC) which operates
on a 24-hour a day basis,  7 days a week.  The lease term began  August 16, 1993
and expires  August 15, 1998.  ILLUMINET  has entered into a separate  five-year
lease with another party beginning August 16, 1998, with the option to renew the
lease for an additional five year period, for a 23,000 square foot facility that
is being currently  constructed in Overland Park,  Kansas,  to suit  ILLUMINET's
specifications.

     ILLUMINET's  network  operations  include  redundant Signal Transfer Points
("STPs") facilities located in Mattoon, Illinois, and Rock Hill, South Carolina.
Additional STP facilities are located in Lacey,  Washington,  Las Vegas, Nevada,
Akron,  Pennsylvania  and  Waynesboro,  Virginia.  ILLUMINET has subleased 4,657
square feet for its STP facilities at Mattoon,  Illinois in the  headquarters of
Consolidated  Communications,  Inc., a shareholder  of  ILLUMINET.  The sublease
expired on July 31,  1996,  and was  renewed  under one of the three  additional
five-year period renewal options. ILLUMINET leases 6,468 square feet for its STP
facilities at Rock Hill, South Carolina, of which it subleases 1,243 square feet
to another party. The lease expired April 30, 1996, and was renewed under one of
three additional  five-year period renewal options. In February 1997,  ILLUMINET
negotiated a five-year  lease expiring in December 2001 for 600 square feet with
an unrelated  party for its STP facilities at Las Vegas,  Nevada.  In July 1997,
IILLUMIENT  entered into separate  lease  agreements  for its STP  facilities at
Waynesboro,  Virginia and Akron,  Pennsylvania.  These five-year leases are each
with IILLUMINET shareholders, and are for 54 square feet each expiring June 2002
with no options for renewal.


ITEM 3:  LEGAL PROCEEDINGS

     None.

ITEM 4:   SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS

     No matter was  submitted  to a vote of security  holders  during the fourth
quarter of 1997.


                                        7


<PAGE>



                                     PART II


ITEM 5:   MARKET FOR COMMON EQUITY AND RELATED STOCKHOLDER MATTERS

     There are no  established  public  trading  markets for shares of Illuminet
Holdings,  Inc. Common Stock ("Illuminet  Common Stock") or Illuminet  Holdings,
Inc. Series A Convertible Preferred Stock ("Illuminet Series A Preferred").

     At December 31, 1997, Illuminet Holdings, Inc. had 265 holders of Illuminet
Common Stock (40 of which also hold Illuminet Series A Preferred Stock),  and 83
holders of Illuminet  Series A Preferred  Stock (40 of which also hold Illuminet
Common Stock).

     When  authorized  by the  Illuminet  Holdings,  Inc.  Board  of  Directors,
payments  of  dividends  are  restricted   under   ILLUMINET's   long-term  debt
arrangements,  as follows:  (1) approval of RTFC is required unless  ILLUMINET's
ratio of equity to total assets  exceeds 40% and (2) dividends are restricted to
75% of  net  income  as  defined  in the  indenture  relating  to the  Illuminet
Debentures.  Dividends  are not payable to  Illuminet  Series A Preferred  Stock
unless dividends are declared,  set aside or paid  simultaneously  to holders of
Illuminet Common Stock. To date, no dividends have been declared.


ITEM 6:   MANAGEMENT'S DISCUSSION AND ANALYSIS OR
          PLAN OF OPERATIONS

BASIS OF PRESENTATION

Illuminet  Holdings,  Inc., and its  wholly-owned  subsidiary,  Illuminet,  Inc.
(formerly named USTN Services, Inc.), (collectively referred to as "ILLUMINET"),
were  incorporated  for the  purpose of  effecting  the  merger of U.S.  Intelco
Holdings, Inc. ("U.S. Intelco") and Independent Telecommunications Network, Inc.
("ITN") that was consummated effective February 23, 1996 ("Merger").  The Merger
was  accounted  for  as a  purchase  business  combination  in  accordance  with
generally accepted  accounting  principles,  with U.S. Intelco designated as the
acquiring  company.  Accordingly,  references  to Illuminet  Holdings,  Inc. and
ILLUMINET in the  accompanying  financial  statements  and related notes for the
periods  prior  to the  Merger  represent  U.S.  Intelco,  while  references  to
Illuminet  Holdings,  Inc.  and  ILLUMINET  for the  periods  after  the  Merger
represent the  consolidated  entity  including the net assets and  operations of
ITN. The pro forma  information  presented in this  Management's  Discussion and
Analysis or Plan of Operations  reflects the combined activities of U.S. Intelco
and ITN as if the Merger had occurred effective January 1, 1996.


                                        8


<PAGE>


<TABLE>
<CAPTION>

RESULTS OF OPERATIONS

Years Ended December 31, 1997 and 1996

REVENUES.  The following table summarizes ILLUMINET's services and the effect of the
Merger on ILLUMINET's revenues:
                                                                                             Change
                                                  1997               1996               $              %
<S>                                            <C>             <C>                 <C>               <C> 
                                                  ----               ----               ---           ---
Billing-and-collection
 services                                      $ 6,723,305     $ 7,895,674         $(1,172,369)      (15%)
Data base services                               8,960,491       7,427,696           1,532,795         21%
Network usage measurement
 software                                        3,468,212         557,932           2,910,280        522%
Other services                                    59,600           742,998            (683,398)      (92%)
                                                ----------      ----------          ----------
                                                19,211,608      16,624,300           2,587,308         16%
                                                ----------      ----------          ----------
Services acquired by Merger:
- ---------------------------
Intelligent network
 services                                       29,477,657      21,408,804           8,068,853         38%
Wireless services                                5,618,792       3,664,001           1,954,791         53%
                                                ----------      ----------          ----------
                                                35,096,449      25,072,805          10,023,644         40%
                                                ----------      ----------          ----------
Pro forma revenue                               54,308,057      41,697,105          12,610,952         30%
Financial statement
 reporting adjustment
 for operations prior
 to the Merger                                       -          (3,809,227)          3,809,227        100%
                                                ----------      ----------          ----------
Revenues per statements
 of income                                      $54,308,057    $37,887,878         $16,420,179         43%
                                                ==========      ==========          ==========
</TABLE>

Billing-and-collection  services  revenues  for 1997 were lower  primarily  as a
result of a $1,271,684, or 20%, decrease in clearinghouse product line revenues.
This  decrease  reflects a fourth  quarter 1996 price  reduction  offset by a 4%
growth in messages  processed from 68.8 million in 1996 to 71.3 million in 1997,
due to the addition of a large customer in the second quarter of 1996.

Data base services  revenues  growth is  attributable  to an increase in Calling
Name Delivery  ("CNAM")  product line revenues of $1,205,753,  or 173%, in 1997.
This increase  reflects growing market  acceptance of the service  introduced in
1995. CNAM queries increased 134% from 125.3 million in 1996 to 293.5 million in
1997.

Network usage measurement software revenues derived from the sale of ILLUMINET's
Signaling  System 7 ("SS7")  network traffic  tracking and measurement  software
products  AMAT7(R)  and CDR7(R)  increased  in 1997 as  ILLUMINET  penetrated  a
greater portion of the market.  Network usage measurement software product sales
have  a long  sales  cycle  with  each  individual  sale  normally  contributing
significant revenue to the product line.


                                        9


<PAGE>



Other  services  revenues  were  lower  primarily  due  to  the  termination  of
ILLUMINET's  contract  to  provide  voice  messaging  services  for the State of
Washington in September,  1996. Voice messaging contributed revenues of $548,408
in 1996.

Intelligent  network services  revenues for 1997 grew primarily as a result of a
$4,436,389, or 93%, increase in trunk signaling and related service product line
revenues,  reflecting new customer  growth.  Network  connectivity  product line
revenues increased $3,939,483, or 50%, from growth in chargeable customer links.
Offsetting the revenue growth in these product lines, Line Information Data Base
("LIDB") switch and transport revenues decreased  $675,911,  or 17%, in 1997 due
to lower query volumes and reduced prices brought on by competition.

Wireless  services revenue grew primarily due to a $1,270,010,  or 38%, increase
in 1997 in cellular  switch and transport  product line  revenues.  The increase
reflects  additional  customers  and increased  utilization  of the network with
message volumes  increasing 82% from 1,253.9 million messages in 1996 to 2,288.2
million  messages  in 1997.  The  difference  between  the  revenue  and  volume
increases reflects the impact of volume discount pricing arrangements.

EXPENSES.  The following table summarizes ILLUMINET's expenses and the effect of
the Merger on ILLUMINET's expenses:


<TABLE>
<CAPTION>

                                                                                             Change
                                                   1997            1996                 $               %
<S>                                             <C>            <C>                 <C>               <C>
                                                  ----            ----                ---             ---
Operating                                       $13,947,243    $10,269,993         $ 3,677,250         36%
Selling, general
 and administrative                              9,905,522       9,486,311             419,211          4%
Depreciation and
 amortization                                    7,353,526       6,175,510           1,178,016         19%
Network operating                               15,313,206      11,063,026           4,250,180         38%
Merger expenses                                      -             700,875            (700,875)     (100%)
                                                ----------      ----------          ----------
Pro forma expenses                              46,519,497      37,695,715           8,823,782         23%
Financial statement
 reporting adjustment
 for operations prior
 to the Merger                                       -          (3,710,914)          3,710,914        100%
                                                ----------      ----------          ----------
Expenses per statements
 of income                                      $46,519,497    $33,984,801         $12,534,696         37%
                                                ===========     ==========          ==========
</TABLE>

ILLUMINET's primary costs are network operating expenses, which are comprised of
leased network  connectivity charges incurred to establish and maintain customer
connectivity  to  the  company's  SS7  network,  followed  by  personnel  costs,
depreciation and amortization of hardware,  software and facilities  assets, and
software maintenance expenses.

Operating  expenses  grew in 1997  primarily  to support the  increased  use and
expansion  of  ILLUMINET's  SS7  network and  related  products.  The growth was
comprised  mainly of higher  personnel  expenses  related to an expansion in the
customer support,  operations and engineering  functions,  increased maintenance
costs for new network


                                       10


<PAGE>



and  systems  hardware  and  software,  and  establishing  bad debt  reserves in
proportion to the growth in revenues and clients.

Selling, general and administrative expenses grew from 1996 levels due to higher
personnel  expenses  related  to an  expansion  in the sales and  marketing  and
product  management  functions,  increased  travel  expenses  and new  marketing
material costs related to increased sales and marketing efforts.

Depreciation  and  amortization  expenses  increased in 1997 due to placing into
service  new  network  equipment,  and a carrying  value for  certain  assets in
connection with ILLUMINET's long-lived assets impairment policy.

Network  operating  expenses  increased  due to the  growth  in  leased  network
connectivity,  link and Local Access  Transport  Area  ("LATA")  access  charges
incurred to support increased customer use of the SS7 network.

Merger expenses were comprised  primarily of  non-recurring  severance  expenses
incurred in the first quarter of 1996.

INTEREST INCOME/INTEREST EXPENSE. Interest income increased by $256,899, or 54%,
from $475,125 in 1996 to $732,024 in 1997. This growth  resulted  primarily from
an increase in  available  cash  balances  provided by  operations  over the two
years. On a pro forma basis, interest income increased by $239,494, or 49%, from
$492,530 in 1996 to $732,024 in 1997.

Interest  expense  increased  $226,658,  or  17%,  from  $1,313,299  in  1996 to
$1,539,957  for in 1997.  The increase  reflects the  exclusion of two months of
pre-Merger  interest  expense  incurred  by ITN in 1996.  On a pro forma  basis,
interest expense was comparable in 1996 and 1997.

INCOME TAXES.  ILLUMINET has federal income tax net operating loss carryforwards
available  to offset  future  taxable  income for  federal  income tax  purposes
totaling  $12,291,927 that expire in various amounts from 2008 through 2011, and
tax credit  carryforwards of $335,332.  ILLUMINET's  ability to utilize such net
operating  loss  carryforwards  and tax credit  carryforwards  is  dependent  on
ILLUMINET's  ability  to  generate  sufficient  taxable  income  from its future
operations.  The 1997 tax accounts and provision reflect a benefit of $3,108,315
attributable  to the reversal of  substantially  all of the previously  recorded
deferred  tax  valuation  allowance  due  to  improved  recent  and  anticipated
operating  results.  The 1997 tax accounts and  provision  also reflect  federal
alternative  minimum  taxes  which  cannot  be  completely  offset  by tax  loss
carryforwards.

EARNINGS

ILLUMINET's  net income grew  $4,704,452,  or 159%,  from $2,952,982 in 1996, to
$7,657,434  in 1997.  This  growth  primarily  reflects  an  increase in network
services and network usage measurement software product revenues,  the effect of
non-recurring  Merger costs incurred in 1996, and the impact of the  post-Merger
operational efficiencies that have reduced costs as a percentage of revenues.

ILLUMINET  believes that it will continue to have positive  earnings in the near
future  through new product and  customer  diversification  and  expansion  into
related


                                       11


<PAGE>



telecommunications markets. ILLUMINET anticipates that increased expenditures in
the  development  of services and products  will  continue over the next several
years.  While it is anticipated  that the existing primary services and products
will continue to be profitable,  overall  profitability  in the immediate future
could be negatively impacted by delays in obtaining new product revenues coupled
with  related  increases  in new  product  start-up  costs.  A general  downward
pressure on price caused by increased  competition  may also  negatively  impact
profitability.

LIQUIDITY AND CAPITAL RESOURCES

ILLUMINET  relies on a combination of cash generated from  operations,  debt and
equity  to  fund  service  development  and  expansion  activities.   Currently,
ILLUMINET's operating activities are generating positive cash flows. However, as
ILLUMINET   broadens  its  services  and  products  to  those  requiring  larger
investments   coupled  with  longer  periods  before  subsequent   revenues  are
generated,  ILLUMINET believes there may be increased pressure on cash generated
from operations.  ILLUMINET  anticipates  continued high levels of investment in
the  development  of new services and  products  over the next several  years to
manage   increased   volumes   relating   to  its   network,   data  base,   and
billing-and-collection  services,  to broaden its product base to keep pace with
changing markets and customer needs, and to enhance customer support systems.

ILLUMINET's  working capital  (current assets in excess of current  liabilities)
was  $11,996,282 as of December 31, 1997.  ILLUMINET's  cash and cash equivalent
balances included  $3,763,000 required as working capital to service ILLUMINET's
clearinghouse  customers.  Such funds are  received  and  disbursed on a monthly
basis.  The growth in working  capital of $5,537,778 from $6,458,504 at December
31, 1996, reflects the increase in accounts receivable attributable to increased
revenue,  decreased payables related to ILLUMINET's  clearinghouse  program, and
the recognition of a deferred tax asset for net operating loss  carryforwards as
described in "INCOME TAXES". Cash received from customers and paid to customers,
suppliers and employees includes toll clearing and other pass-through activities
associated with ILLUMINET's services.  The increase of $20,286,162,  or 13% from
$155,132,157  in 1996 to  $175,418,319  in 1997 in cash received from customers,
and  the  increase  of  $18,533,199,  or  13%,  from  $143,562,818  in  1996  to
$162,096,017 in 1997 in cash paid to customers, suppliers and employees reflects
the increase in  clearinghouse  product volumes and the additional two months of
cash  transactions  included in 1997 for merged ITN  activity  when  compared to
1996.

ILLUMINET's  expenditures  for property and equipment were  $11,254,272  for the
year ended  December 31, 1997.  Expenditures  for  property and  equipment  were
primarily for network equipment to expand capacity and enhance reliability.

At December 31, 1997,  ILLUMINET had a secured line of credit  expiring  August,
2001, with Rural Telephone Finance  Cooperative  ("RTFC") that permits ILLUMINET
to borrow up to $7,300,000, not to exceed 80% of accounts receivable. There were
no borrowings against the line of credit at December 31, 1997.  Additionally, at
December  31,  1997,   ILLUMINET  had  $5,188,007  of  unused  loan   facilities
established  or  committed  with RTFC,  maturing in the years 2000 and 2001.  In
December,  1996,  ILLUMINET  drew  against one of its  existing  mortgage  notes
totaling  $2,680,765  to finance the  expansion of the network  with  additional
switching  equipment.   Currently,   ILLUMINET  has  obtained  vendor  financing
commitments and is finalizing


                                       12


<PAGE>



documentation  for capital  leases  related to a purchase of $6.0 million of new
network equipment to enhance monitoring and troubleshooting capabilities.

ILLUMINET  believes that its existing cash  balances,  funds  generated from its
operations and borrowings available under its existing credit agreements will be
sufficient to meet existing  capital  expenditure  and working capital needs for
the immediate future.

IMPACT OF YEAR 2000

ILLUMINET  has begun to assess its systems  with  respect to the Year 2000 Issue
and has  preliminarily  concluded  that it will be required to modify or replace
portions of its software so that its computer and network  systems will function
properly  with respect to dates in the year 2000 and  thereafter.  ILLUMINET has
not made a full  determination  of the  extent of  necessary  modifications  and
replacements,  but  estimates  that the cost will range between $2.0 million and
$5.0 million.  This range of cost is based on ILLUMINET's best estimate based on
currently available  information;  however, there can be no guarantee that these
estimates will be achieved and actual results could differ materially from those
anticipated  as  further  work on the  issue is  performed.  ILLUMINET  has also
identified  the  need  to  initiate  formal   communications  with  all  of  its
significant  suppliers  and large  customers  to  determine  the extent to which
ILLUMINET's  interface systems are vulnerable to those third parties' failure to
remediate their own Year 2000 Issues. There can be no guarantee that the systems
of other companies on which  ILLUMINET's  systems rely will be converted  timely
and would not have an adverse effect on ILLUMINET's systems.

ILLUMINET believes that with modifications to existing systems and conversion to
new systems,  which are expected to occur through the end of 1999, the Year 2000
Issue  will not pose  significant  operational  problems  for its  computer  and
network systems. However, if such modifications and conversions are not made, or
are not  completed  timely,  the Year 2000 Issue  could have a material  adverse
impact on ILLUMINET's results from operations.

PRIVATE SECURITIES LITIGATION REFORM ACT OF 1995 SAFE HARBOR 
CAUTIONARY STATEMENT

This  Management's  Discussion  and  Analysis  or Plan of  Operations  and other
sections  of  this  Annual  Report  on  FORM  10-KSB  contain  "forward-looking"
statements,  as defined in the Private Securities  Litigation Reform Act of 1995
("Act"), that are based on current expectations, estimates and projections. Such
statements  are  made  pursuant  to the  safe  harbor  provisions  of  the  Act.
Statements that are not historical facts, including statements about ILLUMINET's
beliefs  and  expectations  are  forward-looking  statements.  These  statements
contain potential risks and  uncertainties.  There are certain important factors
that could cause actual results to differ  materially from those  anticipated by
the  forward-looking  statements.  ILLUMINET  undertakes no obligation to update
publicly any forward-looking  statements whether as a result of new information,
future events or otherwise.

Important factors that may affect these projections or expectations include, but
are not limited to:  changes in the overall  economy;  competition in markets in
which  ILLUMINET  operates from larger and better  financed  companies;  cost or
failure  to defend  the  validity  of  ILLUMINET's  patents;  telecommunications
industry consolidation; changes in the telecommunications regulatory environment
that may impact ILLUMINET's regulated customers; future litigation; availability
of future


                                       13


<PAGE>



financing;  and market  acceptance of new products.  Readers should evaluate any
statements in light of these important factors.




                                       14


<PAGE>





ITEM 7:   FINANCIAL STATEMENTS

<TABLE>
<CAPTION>

                                                 ILLUMINET HOLDINGS, INC.

                                                Consolidated Balance Sheets


                                                                  December 31,        
                                                                ---------------------
                  ASSETS                                          1997           1996
<S>                                                            <C>            <C>    
                  ------                                          ----           ----
Current assets:
    Cash and cash equivalents                                 $ 11,167,152    $ 12,514,507
    Accounts receivable, less allowance
       for doubtful accounts of $1,282,000
       ($438,000 in 1996)                                       23,818,209      21,580,485
    Deferred income taxes                                        3,644,805          -
    Prepaid expenses and other                                     377,169         365,735
                                                              ------------    ------------
       Total current assets                                     39,007,335      34,460,727
                                                              ------------    ------------
Property and equipment:
    Land                                                           911,765         911,765
    Building and leasehold improvements                          6,934,636       6,907,061
    Equipment and furniture                                      2,904,756       2,472,543
    Network assets                                              39,547,424      31,637,544
    Computer hardware and software                              18,231,476      16,008,791
                                                              ------------    ------------
                                                                68,530,057      57,937,704
    Less:  Accumulated depreciation and amortization           (33,815,369)    (26,560,848)
                                                              ------------    ------------
       Total property and equipment                             34,714,688      31,376,856
                                                              ------------    ------------
See accompanying notes to consolidated financial statements


                                       15



<PAGE>





Computer software product costs, less
    accumulated amortization of $1,223,000
    ($662,000 in 1996)                                           1,635,686       2,196,782
Other assets, less  accumulated
    amortization of $102,000
    ($86,000 in 1996)                                            2,668,655       2,787,968
                                                              ------------    ------------
Total assets                                                  $ 78,026,364    $ 70,822,333
                                                              ============    ============

</TABLE>

See accompanying notes to consolidated financial statements.



                                       16


<PAGE>




<TABLE>
<CAPTION>

                            ILLUMINET HOLDINGS, INC.

                     Consolidated Balance Sheets, Continued


                                                                           December 31,
                                                                           -------------------
LIABILITIES AND SHAREHOLDERS' EQUITY                                         1997               1996
- ------------------------------------                                         ----               ----
<S>                                                                      <C>                <C>
                                                                          ------------      -----------
Current liabilities:     
    Trade accounts payable                                                $ 4,553,725        $4,347,084
    Accrued expenses                                                        3,247,959         2,243,468
    Due to customers                                                       16,930,777        19,236,821
    Current portion of long-term debt                                       2,278,592         2,174,850
                                                                          ------------      ------------
       Total current liabilities                                           27,011,053        28,002,223
                                                                          ------------      ------------
Deferred income taxes                                                       2,775,045             -
Long-term debt, less current portion                                       18,014,115        21,060,061
                                                                          ------------      ------------
    Total non-current liabilities                                          20,789,160        21,060,061
                                                                          ------------      ------------

Shareholders' equity:
    Illuminet Holdings, Inc. Preferred Stock, par value
       $.01 per share, authorized 95,584 shares, none
       issued or outstanding                                                   -                 -
    Illuminet Holdings, Inc. Series A Convertible Preferred
       Stock, par value $.01 per share, authorized 4,416
       shares, issued and outstanding 2,451 (2,637 in 1996),
       aggregate liquidation preference $2,451,000                                25                26    
Illuminet Holdings, Inc. Common Stock, par value
       $.01 per share, authorized 12,000,000 shares,
       issued and outstanding 5,347,081 (5,262,354 in 1996)                   53,471            52,624
    Additional paid-in capital                                            11,985,679        10,701,247

See accompanying notes to consolidated financial statements.

                                       17


<PAGE>





    Deferred stock compensation                                              (340,454)           -
    Retained earnings                                                      18,527,430       11,006,152
                                                                         -------------        -------
       Total shareholders' equity                                          30,226,151       21,760,049
                                                                         -------------        -------
Total liabilities and shareholders' equity                                $78,026,364      $70,822,333
                                                                           ==========       ==========

See accompanying notes to consolidated financial statements.

                                       18

</TABLE>

<PAGE>


<TABLE>
<CAPTION>



                                                 ILLUMINET HOLDINGS, INC.

                                             Consolidated Statements of Income

                                                         Years Ended  December 31,
                                                         ------------------------
                                                           1997             1996
                                                           ----             ----
<S>                                                    <C>             <C>    

Revenues                                                 $54,308,057   $37,887,878
                                                       -------------      -------
Expenses:
    Operating                                             13,947,243     9,914,192
    Selling, general and administrative                    9,905,522     8,648,618
    Depreciation and amortization                          7,353,526     5,714,269
    Network operating                                     15,313,206     9,357,655
    Merger expenses                                            -           350,067
                                                       -------------      -------
       Total expenses                                     46,519,497    33,984,801
                                                       -------------      -------
Operating income                                           7,788,560     3,903,077

Interest income                                              732,024       475,125
Interest expense                                          (1,539,957)   (1,313,299)
                                                       -------------      -------
Income before income taxes                                 6,980,627     3,064,903

Income tax provision (benefit)                              (676,807)      111,921
                                                       -------------      -------

See accompanying notes to consolidated financial statements.

                                       19


<PAGE>





Net income                                               $ 7,657,434   $ 2,952,982
                                                          ==========    ==========
Basic earnings per share                                 $      1.45   $      0.59
                                                          ==========    ==========
Diluted earnings per share                               $      1.27   $      0.57
                                                          ==========    ==========
Weighted-average common shares                             5,295,509     4,995,092
                                                          ==========    ==========
Weighted-average common shares
    and potential common shares                            6,396,665     5,972,284
                                                           =========     =========

See accompanying notes to consolidated financial statements.

</TABLE>

                                       20


<PAGE>





<TABLE>
<CAPTION>

                                             ILLUMINET Holdings, Inc.

                                Consolidated Statements of Shareholders' Equity

                                    Years Ended December 31, 1997 and 1996

                                           U.S. Intelco Holdings, Inc.
                                     -----------------------------------
                                                 Common Stock                              Illuminet Holdings, Inc.
                                     -----------------------------------             ---------------------------------
                                     Class A                  Class B                 Common         Series A Preferred
                                  --------------       ------------------           ------------     ----------------- 
                                      
                                Shares        $        Shares          $          Shares        $        Shares     $  
                                ------      ------     ------        -----        ------      ------     ------   ------
<S>                             <C>       <C>          <C>         <C>          <C>          <C>         <C>       <C>            

Balance at
     January 1, 1996               466    $ 23,300     1,208,696    $ 24,174          --      $   --        --       $--
Merger dissenting
     shares repurchased             (6)       (300)      (17,917)       (358)         --          --        --       --  
                                  ----    --------    ----------    --------    ----------    --------    ------    ----
Total before merger
     on February 23, 1996          460      23,000     1,190,779      23,816          --          --        --       --  
Conversion to Illuminet
     Holdings, Inc. stock         (460)    (23,000)   (1,190,779)    (23,816)    3,673,871      36,739      --       --  
Purchase of Independent
     Telecommunications
     Network, Inc.                --          --            --          --       1,566,988      15,670     2,675      27
Illuminet Common Stock
     issued under former
     stock incentive plan         --          --            --          --           7,539          75      --       --  
Conversion of Illuminet
     Series A Preferred
     Stock                        --          --            --          --           3,235          33       (38)     (1)
Conversion of convertible
     redeemable subordinated
     debentures                   --          --            --          --          10,721         107      --       --  
Net income                        --          --            --          --            --          --        --       --  
                                ------    --------    ----------    --------    ----------    --------    ------    ----
Balance at
     December 31, 1996            --          --            --          --       5,262,354      52,624     2,637     $26
Conversion of Illuminet
     Series A Preferred
     Stock                        --          --            --          --          15,832         158      (186)     (1)
Conversion of convertible
     redeemable subordinated
     debentures                   --          --            --          --          66,194         662      --       --  
Illuminet Common Stock
     issued under former
     stock incentive plan         --          --            --          --          14,240         142      --       --  
Stock repurchases                 --          --            --          --         (11,539)       (115)     --       --  
Deferred stock compensation       --          --            --          --            --          --        --       --  
Stock compensation expense        --          --            --          --            --          --        --       --  
Net income                        --          --            --          --            --          --        --       --  
                                ------    --------    ----------    --------    ----------    --------    ------    ----
Balance at
     December 31, 1997            --      $   --            --      $   --       5,347,081    $ 53,471     2,451    $ 25
                                ======    ========    ==========    ========    ==========    ========    ======    ====


See accompanying notes to consolidated financial statements.

  
                                       21

<PAGE>
                                 Additional    Deferred                                    
                                   Paid-In      Stock          Retained       Total 
                                   Capital    Compensation     Earnings       Equity        
                                   -------    -------------     ------        ------
<S>                           <C>            <C>            <C>             <C>    

Balance at
     January 1, 1996           $  4,136,159    $    --      $  8,235,741    $ 12,419,374
Merger dissenting
     shares repurchased                --           --          (182,571)       (183,229)
                               ------------    ---------    ------------    ------------
Total before merger
     on February 23, 1996         4,136,159         --         8,053,170      12,236,145
Conversion to Illuminet
     Holdings, Inc. stock            10,077         --              --              --
Purchase of Independent
     Telecommunications
     Network, Inc.                6,354,252         --              --         6,369,949
Illuminet Common Stock
     issued under former
     stock incentive plan            81,772         --              --            81,847
Conversion of Illuminet
     Series A Preferred
     Stock                              (32)        --              --              --
Conversion of convertible
     redeemable subordinated
     debentures                     119,019         --              --           119,126
Net income                             --           --         2,952,982       2,952,982
                               ------------    ---------    ------------    ------------
Balance at
     December 31, 1996           10,701,247         --        11,006,152      21,760,049
Conversion of Illuminet
     Series A Preferred
     Stock                             (157)        --              --              --
Conversion of convertible
     redeemable subordinated
     debentures                     734,839         --              --           735,501
Illuminet Common Stock
     issued under former
     stock incentive plan            40,441         --              --            40,583
Stock repurchases                      --           --          (136,156)       (136,271)
Deferred stock compensation         509,309     (509,309)           --              --
Stock compensation expense             --        168,855            --           168,855
Net income                             --           --         7,657,434       7,657,434
                               ------------    ---------    ------------    ------------
Balance at
     December 31, 1997         $ 11,985,679    $(340,454)   $ 18,527,430    $ 30,226,151
                               ============    =========    ============    ============


</TABLE>

See accompanying notes to consolidated financial statements.

                                                                22


<PAGE>



<TABLE>
<CAPTION>


                                                      ILLUMINET HOLDINGS, INC.

                                           Consolidated Statements of Cash Flows

                                                                  Years Ended
                                                            December 31,        
                                                           ------------------------
                                                             1997              1996
<S>                                                      <C>              <C>    
                                                           --------          -------    

Cash flows from operating activities:

    Cash received from customers                         $ 175,418,319    $ 155,132,157
    Interest received                                          724,726          470,997
    Cash paid to customers, suppliers and employees       (162,096,017)    (143,562,818)
    Income taxes refunded (paid)                              (226,000)         173,795
    Interest paid                                           (1,943,564)      (1,463,940)
                                                         -------------    -------------
       Net cash provided by operating activities            11,877,464       10,750,191
                                                         -------------    -------------

Cash flows from investing activities:

    Cash acquired in acquisition of Independent
       Telecommunications Network, Inc.                         -               613,086
    Cash payments in connection with acquisition
       of Independent Telecommunications Network, Inc.          -              (738,634)
    Capital expenditures and software development          (11,254,272)      (6,113,559)
                                                         -------------     -------------
       Net cash used by investing activities               (11,254,272)      (6,239,107)
                                                         -------------     -------------


See accompanying notes to consolidated financial statements.




                                       23


<PAGE>



Cash flows from financing activities:
    Purchase of subordinated capital certificates  
    related to notes payable                                    -              (134,038)
    Proceeds from issuance of notes payable                     -             2,680,765
    Principal payments on notes payable                     (1,834,276)      (1,352,281)
    Acquisition of common stock                               (136,271)            -
    Payments to dissenting shareholders                         -              (183,229)
                                                           -------------       ---------
       Net cash provided (used) by financing activities     (1,970,547)       1,011,217
                                                           -------------       ---------

Net increase (decrease) in cash and cash equivalents        (1,347,355)       5,522,301

Cash and cash equivalents at:

    Beginning of year                                       12,514,507        6,992,206
                                                          -------------        ---------
    End of year                                           $ 11,167,152     $ 12,514,507
                                                           ============     ============


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

                                       24


<PAGE>





                            ILLUMINET HOLDINGS, INC.

                   Notes to Consolidated Financial Statements

                                December 31, 1997


Note 1:  Summary of Significant Accounting Policies
- ---------------------------------------------------

Description of Business and Basis of Presentation
- -------------------------------------------------

Illuminet  Holdings,  Inc. (formerly USTN Holdings,  Inc.), and its wholly-owned
subsidiary  Illuminet,  Inc.  (formerly  USTN  Services,  Inc.),   (collectively
referred to as "ILLUMINET") were incorporated in the State of Delaware on August
2, 1995, to effect the merger of U.S. Intelco  Holdings,  Inc. ("U.S.  Intelco")
and Independent  Telecommunications  Network,  Inc. ("ITN").  In accordance with
terms of the merger,  U.S. Intelco and ITN merged with and into Illuminet,  Inc.
on February 23, 1996 (the "Merger").  The Merger was accounted for as a purchase
business  combination  with U.S.  Intelco  designated as the acquiring  company.
Accordingly,  references  to  Illuminet  Holdings,  Inc.  and  ILLUMINET  in the
accompanying financial statements and related notes for the periods prior to the
Merger represent U.S. Intelco, while references to Illuminet Holdings,  Inc. and
ILLUMINET for the periods after the Merger  represent  the  consolidated  entity
including the net assets and operations of ITN (see Note 2).

ILLUMINET is engaged in the  business of  developing,  managing and  marketing a
Signaling  System 7 ("SS7")  network and related  products and services based on
SS7  technology  to  the  entire  telecommunications   marketplace.   SS7  is  a
telecommunications  industry-standard system of protocols and procedures that is
used to control  telephone  communications  and provide  routing  information in
association with vertical calling  features,  such as card validation,  Advanced
Intelligent Network services,  Local Number Portability,  cellular services, 800
Number Portability, and Calling Name Delivery. Additionally,  ILLUMINET provides
advanced  data base  services,  billing-and-collection  services,  calling  card
services,  and network traffic tracking and measurement  software  products to a
range of telephone companies as well as interexchange carriers, operator service
providers   and   other   telecommunications    companies   and   providers   of
telecommunications  services. ILLUMINET primarily provides services to companies
in the telecommunications industry that are located throughout the United States
and considers all of its operations as one segment.

ILLUMINET has its corporate headquarters and a portion of its operations located
in Lacey, Washington; a network control center and related operations located in
Overland Park, Kansas; and additional SS7 Signal Transfer Points located in Rock
Hill, South Carolina;  Mattoon, Illinois; Las Vegas, Nevada; Akron, Pennsylvania
and Waynesboro, Virginia.




                                       25


<PAGE>




Principles of Consolidation
- ---------------------------

The  consolidated  financial  statements  include the  financial  statements  of
Illuminet  Holdings,  Inc. and its  subsidiaries.  All significant  intercompany
balances and transactions have been eliminated in consolidation.



                                       26


<PAGE>





Cash Equivalents
- ----------------

ILLUMINET  considers all highly liquid  investments with original  maturities of
three  months  or less at  purchase  to be cash  equivalents.  Cash  equivalents
consist of money market funds that are stated at cost which approximates  market
value. At December 31, 1997 and 1996, such investments  included $10,310,303 and
$9,538,536,  respectively,  invested in a money market fund consisting of direct
obligations of the U.S.  Treasury and repurchase  agreements  collateralized  by
such obligations of the U.S. Treasury.

Accounts Receivable
- -------------------

One of ILLUMINET's services involves providing a clearinghouse function for toll
collected by telephone companies on behalf of other  telecommunications  service
providers.   At  December  31,  1997  and  1996,  accounts  receivable  included
$10,628,000  and  $11,964,000,  respectively,  of such  toll  amounts  due  from
telephone companies,  and due to customers included $14,142,000 and $16,917,000,
respectively,  owed to such service  providers.  Accounts  receivable from these
companies  are  uncollateralized;  however,  uncollected  amounts  may be offset
against amounts otherwise due to service providers.

Included  in accounts  receivable  at  December  31,  1997 is  $629,100  due for
services and  reimburseable  expenses  from a customer in which  Illuminet has a
preferred  stock  equity  investment  currently  representing  18% of the voting
rights of the  customer.  Revenues  earned from the customer  were  $515,900 and
$69,400 for the years ended December 31, 1997 and 1996, respectively.

Concentration of credit risk with respect to trade receivables is limited due to
the diversity of the customer base and geographic dispersion and is evidenced by
a history of minimal customer account write-offs.

Property and Equipment and Capitalized Software
- -----------------------------------------------

Property and equipment and capitalized software are stated at cost. Depreciation
and amortization are provided using the straight-line  method over the estimated
useful lives of the assets.  Estimated  useful lives for property and  equipment
are as follows:

         Corporate headquarters building                   31.5 years
         Network assets                                 5 to 10 years
         Office equipment and systems                   5 to 20 years
         Furniture and fixtures                         5 to 15 years
         Computer equipment and software                 3 to 5 years
         Leasehold improvements                               5 years

Computer  software  product  costs  represent  capitalized  costs  incurred  for
development  of software  products  after the  technological  feasibility of the
product is  established.  Costs  incurred  prior to that date are expensed.  The
annual amortization, which was $561,000 for each of the years ended December 31,
1997 and 1996, is determined on a product-by-product basis as the greater of the
amount  computed  using (a) the ratio that current gross  revenues for a product
bear to the total of current and  anticipated  future  gross  revenues  for that
product,  or (b) the straight-line  method over the remaining estimated economic
life of the  product of five  years.  Amortization  starts  when the  product is
available for general release to customers.


                                       27


<PAGE>






Impairment of Long-Lived Assets
- -------------------------------

Long-lived assets consist of intangible  assets and certain capital assets.  The
carrying  value of these assets is regularly  reviewed to verify they are valued
properly.  If the  facts  and  circumstances  suggest  that the  value  has been
impaired, the carrying value of the assets will be reduced appropriately.

Revenue Recognition
- -------------------

ILLUMINET's  revenues are  recognized  when earned.  Computer  software  product
revenues are recognized  when all contractual  obligations  have been fulfilled.
Revenues are recorded net of amounts passed through to service providers.

Stock-Based Compensation
- ------------------------

ILLUMINET has elected to apply the  disclosure-only  provisions of the Financial
Accounting  Standards Board ("FASB") Statement of Financial Accounting Standards
No.  123,   "Accounting  for  Stock-Based   Compensation"   ("Statement   123").
Accordingly, ILLUMINET accounts for stock-based compensation using the intrinsic
value  method  prescribed  in  Accounting   Principles  Board  Opinion  No.  25,
"Accounting for Stock Issued to Employees" ("APB 25").  Compensation expense for
stock  options  is  measured  as the  excess,  if any,  of the fair value of the
ILLUMINET  common stock at the  measurement  date over the stock option exercise
price.

Income Taxes
- ------------

ILLUMINET provides for income taxes under the liability method, whereby deferred
tax assets and liabilities are determined based on differences between financial
reporting and tax bases of assets and liabilities and are measured using enacted
tax rates and laws that will be in effect when the  differences  are expected to
reverse.

Earnings Per Share
- ------------------

In 1997, the FASB issued  Statement of Financial  Accounting  Standards No. 128,
"Earnings per Share" ("Statement  128").  Statement 128 replaced the calculation
of primary and fully diluted  earnings per share with basic and diluted earnings
per share.  Unlike primary earnings per share, basic earnings per share excludes
any dilutive effects of stock options and convertible  preferred stock.  Diluted
earnings  per share is very similar to the  previously  reported  fully  diluted
earnings per share.  All prior  earnings per share amounts have been restated to
conform to the Statement 128 requirements.




                                       28


<PAGE>




Use of Estimates
- ----------------

The preparation of 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 date of the financial  statements and
reported  amounts of revenues and expenses during the reporting  period.  Actual
results could differ from those estimates.

Reclassifications
- -----------------

Certain  reclassifications  to the 1996 financial  statements  have been made to
conform to the 1997 presentation.


                                       29


<PAGE>





Note 2:  Acquisition and Merger
- ----------------------------------------------

In exchange for the net assets of ITN, excluding U.S. Intelco's 36% ownership of
ITN on the date of the Merger,  Illuminet  Holdings,  Inc.  issued the following
consideration and incurred the following costs:

   Fair value of Illuminet Common Stock issued                     $5,561,778
   Fair value of Illuminet Series A Preferred Stock issued            808,171
   Direct and incremental merger costs                                678,076
                                                                    ---------
      Aggregate purchase price                                     $7,048,025
                                                                    =========

As  consideration  for  the  sale,   non-dissenting  ITN  shareholders  received
1,566,988 shares of Illuminet  Holdings,  Inc. Common Stock  ("Illuminet  Common
Stock")  and 2,675  shares of  Illuminet  Holdings,  Inc.  Series A  Convertible
Preferred  Stock  ("Illuminet  Series A Preferred  Stock").  ITN Debentures were
converted   to  Illuminet   convertible   redeemable   subordinated   debentures
("Illuminet  Debentures")  having the same amount of  outstanding  principal and
interest under the terms and  conditions set forth in the Merger.  Payments made
to ITN dissenters totaled $738,634 during the year ended December 31, 1996.

After elimination of U.S. Intelco's 36% ownership of ITN, the purchase price was
less than the fair value of the remaining assets by $2,506,548, and accordingly,
has been recorded as a reduction in the long-lived assets acquired. The purchase
price was  allocated  to the acquired net assets of ITN as of February 23, 1996,
as follows:

   Cash                                                           $   613,086
   Accounts receivable                                              5,880,200
   Other current assets                                               282,267
   Deferred tax assets                                                991,644
   Network assets                                                  16,227,702
   Other property and equipment                                     1,290,293
   Other assets                                                     1,093,701
   Trade accounts payable and other current liabilities            (5,560,523)
   Amounts due dissenting shareholders                               (738,634)
   Long-term debt                                                 (13,031,711)
                                                                   ----------
                                                                  $ 7,048,025
                                                                   ==========

In 1996, ILLUMINET paid dissenting U.S. Intelco shareholders a total of $183,229
in exchange for U.S.  Intelco stock held by such  dissenters on the merger date.
The payments were recorded as a stock repurchase and retirement transaction.

Assuming that this acquisition had taken place on January 1, 1996, unaudited pro
forma results of operations for the year ended December 31, 1996 would have been
as follows:




                                       30


<PAGE>





         Revenues                                 $41,697,105
                                                   ==========
         Net income                               $ 2,854,268
                                                   ==========
         Diluted earnings per share               $      0.52
                                                   ==========

The pro forma  results do not  necessarily  represent  results  which would have
occurred if the acquisition had taken place on the date indicated,  nor are such
results necessarily indicative of the results of future operations.

In connection with the acquisition,  U.S. Intelco was substantially reorganized,
resulting in corporate realignment expenses comprised mainly of severance costs,
totaling $350,067 for the year ended December 31, 1996.

Note 3:  Long-Term Debt
- -----------------------

Long-term debt at December 31 consisted of the following:
<TABLE>
<CAPTION>

                                                                                1997              1996
<S>                                                                          <C>               <C>
                                                                                ----              ----
 Various secured notes payable to
     Rural  Telephone  Finance  Cooperative
     ("RTFC") with variable interest rates,
     6.65% at December 31, 1997
     (6.30% at  December  31,  1996)
     payable  in  quarterly installments,
     including  interest,  each maturing 
     at various dates ranging from
     August, 2000, to March, 2015.                                            $11,459,411      $13,328,043
 Convertible redeemable subordinated
     debentures ("Illuminet Debentures")
     bearing interest at 7.5%, maturing
     August, 2001 (net of original
     issue discount of $172,095).                                               7,561,124        8,248,342
 Convertible redeemable subordinated
     debenture deferred interest payable                                        1,272,172        1,658,526
                                                                                ---------      -----------
                                                                               20,292,707       23,234,911
 Less: Current portion                                                         (2,278,592)      (2,174,850)
                                                                               -----------     -----------
 Total long-term debt                                                         $18,014,115      $21,060,061
                                                                               ==========      ===========
</TABLE>

Additional  borrowings  available  under the various note  agreements  with RTFC
aggregated $5,188,007 at December 31, 1997.  All of the RTFC notes have variable
interest rates that are based on RTFC's short-term  funding costs. In accordance
with the  terms  of the  loan  agreements,  ILLUMINET  purchased  lender-issued,
non-interest-bearing  subordinated capital certificates based on a percentage of
the  gross  loan  amount.  Such  certificates  are  amortized  against  the loan
principal  balance  over  the  terms  of  the  respective  loans.   Certificates
purchased, net of


                                       31


<PAGE>





amortization,  totaled  $1,107,656 and $1,142,012 at December 31, 1997 and 1996,
respectively,  are carried at cost, and are included in other long-term  assets.
The loan agreements  contain certain  covenants,  the most  restrictive of which
requires ILLUMINET to maintain certain cash flow-to-debt service ratios.

All RTFC loans are currently  secured by a first-priority lien on  substantially
all of ILLUMINET's assets,  revenues and property,  excluding cash collected and
held on behalf of others in the normal course of providing ILLUMINET's services.
Cash and cash  equivalents  not subject to the lien were  $3,763,000 at December
31, 1997.

In August,  1996, ILLUMINET entered into a secured line of credit agreement with
RTFC that  permits  ILLUMINET to borrow up to  $7,300,000,  not to exceed 80% of
accounts  receivable for a term of five years. The line of credit bears interest
at the lesser of the prime rate plus 1.5% or RTFC's monthly line of credit rate,
and contains certain covenants, the most restrictive of which requires ILLUMINET
to maintain a zero balance in the line at least five  consecutive  business days
every 360 days after the initial advance.  There were no borrowings  outstanding
against the line of credit at December 31, 1997.

The Illuminet Debentures,  formerly ITN Debentures converted in the Merger, bear
interest  at 7.5% and are due August 15,  2001.  Interest on the  debentures  is
payable in quarterly installments,  in arrears.  Interest accrued for the period
prior to  December  31,  1995,  was  deferred  and will be paid  ratably on each
interest  payment date over the remaining term of the debentures.  The Illuminet
Debentures are convertible  into the number of shares of Illuminet  Common Stock
equal  to the  principal  amount  of the  Illuminet  Debenture  at the  time  of
conversion  divided by the market price of Illuminet Common Stock at the time of
conversion  (as defined in the  Indenture),  or if no market  price  exists,  at
$11.11 per share.  Illuminet  Debentures  are  subordinated  to all senior debt.
Illuminet  Debentures are directly  associated with Illuminet Series A Preferred
Stock in that these securities were issued as a unit.

The carrying value of ILLUMINET's long-term debt approximates fair value.

Maturities of the long-term debt for the years ending  December 31 are scheduled
as follows:

                1998                              $2,278,592
                1999                               2,404,127
                2000                               1,570,996
                2001                               8,699,780
                2002                                 371,843
                2003-2007                          2,463,255
                2008-2012                          2,046,404
                2013-2015                            457,710
                                                  ----------
                                                 $20,292,707
                                                  ==========



                                       32


<PAGE>




Note 4:  Shareholders' Equity
- -----------------------------

At December 31, 1997,  Illuminet  Holdings,  Inc. is  authorized  to issue up to
12,100,000  shares of  capital  stock  consisting  of (i)  12,000,000  shares of
Illuminet  Common Stock,  par value $.01 per share,  and (ii) 100,000  shares of
Illuminet  Preferred  Stock,  par value $.01 per share.  Each share of Illuminet
Common Stock and Illuminet  Series A Preferred Stock is entitled to one vote and
100 votes, respectively.

Each share of  Illuminet  Series A  Preferred  Stock is  convertible  into 85.12
shares of Illuminet  Common Stock  ("Conversion  Amount"),  at the option of the
holder  thereof  at any time that the  holder  elects to  convert  an  Illuminet
Debenture  issued as a unit with such a share.  Each share of Illuminet Series A
Preferred Stock will be convertible,  at the option of Illuminet Holdings, Inc.,
into Illuminet  Common Stock based on the Conversion  Amount,  at such time that
the  Illuminet  Debenture  issued as a unit with such  share is  converted  into
shares of  Illuminet  Common  Stock.  If the  Illuminet  Debentures  and accrued
interest  thereon,  and Illuminet Series A Preferred Stock had been converted at
December 31, 1997,  1,101,156  shares of Illuminet  Common Stock would have been
issued. In the event of liquidation,  Illuminet Series A Preferred Stock will be
entitled  to $1,000  per share out of the  assets  of  ILLUMINET  available  for
distribution to its shareholders, but before any payment or distribution is made
to holders of Illuminet  Common Stock or any other series of preferred  stock of
Illuminet Holdings, Inc.

Payments  of  dividends  are  restricted   under   ILLUMINET's   long-term  debt
arrangements   as follows:  (1) approval of RTFC is required unless  ILLUMINET's
ratio of equity to total assets  exceeds 40% and (2) dividends are restricted to
75% of  net  income  as  defined  in the  indenture  relating  to the  Illuminet
Debentures.  Dividends  are not payable to  Illuminet  Series A Preferred  Stock
unless dividends are declared,  set aside or paid  simultaneously  to holders of
Illuminet Common Stock.

Note 5:  Stock Option Plans
- -----------------------------

ILLUMINET  established  the 1997 Equity  Incentive  Plan under  which  1,000,000
shares were reserved for issuance  pursuant to non-qualified and incentive stock
options, and stock appreciation rights that may be granted. Employee options are
generally exercisable ratably over four years and expire ten years from the date
of grant except that options expire one year after termination of employment, or
60 days after termination of employment if ILLUMINET's stock is publicly traded.
Outside Director non-qualified stock options are generally exercisable after one
year and expire ten years from the date of grant.

During 1997,  171,500  non-qualified  stock options to purchase Illuminet Common
Stock were granted to key employees, and 60,004 non-qualified stock options were
granted to outside  Directors.  The non-qualified  stock options were granted at
prices less than the then estimated fair value of the common stock as determined
by the Board of  Directors.  No options  were  exercised  or expired in the year
ended December 31, 1997, and 70,004 were exercisable at December 31, 1997 with a
weighted-average  remaining  contractual life of 9.7 years. The weighted average
option price was $8.80 for options granted in 1997 and exercisable at December


                                       33


<PAGE>





31, 1997.  Deferred  compensation  expense for the stock options  granted during
1997 was $509,309 of which $168,855 was recognized as stock compensation expense
for the year ended December 31, 1997.

Pro forma information regarding net income and earnings per share is required by
Statement  123, and has been  determined  as if ILLUMINET  had accounted for its
stock options under the fair value method of that  Statement.  The fair value of
these  options was estimated at the date of grant using a  Black-Scholes  option
pricing model with the following  weighted-average  assumptions for 1997:  5.92%
risk-free  interest rate; zero percent dividend yield;  zero percent  volatility
factor of the expected  market price of ILLUMINET's  non-publicly  traded common
stock; and an 8.54 year expected life. The  weighted-average  estimated value of
the options granted during 1997 was $5.59 per share.

For purposes of pro forma  disclosures,  the estimated fair value of the options
is amortized to expense over the options' vesting period; accordingly,  the 1997
pro forma impact of stock options granted may not be indicative of the pro forma
impact in future years.  ILLUMINET's  pro forma  information  for the year ended
December 31, 1997 follows:

         Net income - as reported                        $7,657,434
                                                          =========
         Net income - pro forma                          $7,485,015
                                                          =========

         Diluted earnings per share - as reported        $    1.27
                                                         ==========
         Diluted earnings per share - pro forma          $    1.25
                                                         ==========

Note 6:  Income Taxes
- ---------------------

Components of the income tax provision (benefit) for the years ended December 31
are summarized as follows:

                                                           1997           1996
                                                           ----           ----

         Current                                       $ 192,953        $111,921
         Deferred                                       (869,760)           -
                                                       -----------      --------
         Total income tax provision (benefit)          $(676,807)       $111,921
                                                       ===========      ========

ILLUMINET provides for deferred taxes based on the differences between the bases
of assets  and  liabilities  for  financial  reporting  purposes  and income tax
purposes,  calculated  using  enacted  tax rates that will be in effect when the
differences  are  expected to  reverse.  At  December  31,  1997 and 1996,  such
differences primarily related to net operating loss carryforwards, tax credit


                                       34


<PAGE>





carryforwards,  the use of accelerated  depreciation  and  amortization  for tax
purposes,  accruals for certain  expenses that are not currently  deductible for
tax purposes  until paid,  the tax basis of certain  investments  that have been
written-off for financial  statement  purposes,  and software  development costs
that were capitalized for financial statement purposes.

At  December  31,  1997,  ILLUMINET  had a  valuation  allowance  related to tax
benefits  associated  with  capital  losses  recorded  for  financial  statement
purposes but not yet realized for tax purposes.  During the year ended  December
31,  1997,  the  valuation  allowance  decreased  $3,108,315  primarily  through
utilization  of net  operating  loss  carryforwards  in 1997 and the reversal of
substantially all of the previously  recorded  deferred tax valuation  allowance
due to improved recent and anticipated  operating results. At December 31, 1997,
ILLUMINET had federal income tax net operating loss  carryforwards  available to
offset  future  taxable   income  for  federal  income  tax  purposes   totaling
$12,291,927  that expire in various  amounts  from 2008  through  2011,  and tax
credit  carryforwards  of $335,332.  These  carryforwards  may be limited  under
certain provisions of the Internal Revenue Code.

The reconciliations of the income tax provision  (benefit)  calculated using the
U.S. federal statutory rates to the recorded income tax provision  (benefit) for
the years ended December 31 are summarized as follows:

                                                           1997           1996
                                                           ----           ----

  Tax at U.S. federal statutory rate                     $2,373,413  $1,042,067
  Utilization of net operating loss
      carryforward                                      (2,373,413)  (1,042,067)
  Alternative minimum tax                                  192,953      111,921
  Reversal of valuation allowance                         (869,760)        -
                                                         ----------    --------
  Income tax provision (benefit)                        $ (676,807)  $  111,921
                                                         =========    =========




                                       35


<PAGE>





The  components  of the deferred tax assets as of December 31 are  summarized as
follows:
                                                        1997            1996
                                                        ----            ----
    Deferred tax assets:
        Net operating loss carryforwards             $4,425,094      $7,547,217
        Tax credit carryforwards                        335,332         142,379
        Allowance for doubtful accounts                 461,579         157,680
        Other non-deductible accruals                 1,430,291         593,807
        Valuation allowance                            (180,270)     (3,288,585)
                                                     ----------      -----------
          Net deferred tax assets                     6,472,026       5,152,498
                                                     ----------      -----------
         Deferred tax liabilities:
             Excess tax over book depreciation
                and amortization                     (5,587,755)     (5,137,987)
             Other                                      (14,511)        (14,511)
                                                     ----------       ----------
               Total deferred tax liabilities        (5,602,266)     (5,152,498)
                                                     ----------       ----------
         Deferred tax asset, net                     $  869,760      $     -
                                                     ==========      ===========
                                                   

Note 7:  Earnings Per Share

The following table sets forth the computation of basic and diluted earnings per
share:
                                                     1997              1996
                                                     ----              ----
  Numerator:
      Numerator for basic earnings
          per share - income available
          to common shareholders                  $7,657,434       $2,952,982
      Effect of dilutive securities -
          Illuminet Debentures                       497,411          446,958
                                                  ----------       ----------
      Numerator for diluted earnings
          per share - income available
          to common shareholders after
          assumed conversions                     $8,154,845       $3,399,940
                                                  ==========       ==========

  Denominator:
      Denominator for basic earnings
          per share - weighted-average shares      5,295,509         4,995,092
                                                   ---------         ---------

  Weighted-average effect of dilutive securities:
            Illuminet Debentures                     882,073           787,097


                                       36


<PAGE>





           Illuminet Series A Preferred Stock         219,083          190,095
                                                      -------          -------
                                                      
         Dilutive potential common shares           1,101,156          977,192
                                                    ---------          -------

     Denominator for diluted earnings per
         share -adjusted weighted-average
         shares and assumed conversions             6,396,665        5,972,284
                                                    =========        =========

 Basic earnings per share                          $     1.45       $     0.59
                                                    =========        =========
 Diluted earnings per share                        $     1.27       $     0.57
                                                    =========        =========

     See notes 3, 4 and 5 for  additional  information  regarding  the Illuminet
     Debentures, Illuminet Series A Preferred Stock and stock options.

     Stock options to purchase  231,504 shares of common stock were  outstanding
     during 1997 but were not included in the  computation  of diluted  earnings
     per share because of their anti-dilutive effect.

Note 8:  Statements of Cash Flows
- ---------------------------------

Reconciliations  of net income to net cash provided by operating  activities for
the years ended December 31 are summarized as follows:

                                                       1997             1996
                                                       ----             ----

   Net income                                       $ 7,657,434    $ 2,952,982

   Adjustments to reconcile  net income 
     to net cash  provided by operating
       activities:

     Depreciation and amortization                    7,353,526      5,714,269
     Stock compensation                                 168,855-
     Deferred income taxes                             (869,760)-
   Change in:
       Accounts receivable                           (2,237,724)    (1,958,928)
       Other assets                                      63,773        296,698
       Trade accounts payable                         1,380,984      1,016,866
       Accrued expenses                               1,004,491     (1,094,088)
       Due to customers                              (2,306,044)     3,850,974
       Other liabilities                               (338,071)       (28,582)
                                                     ----------      ----------
   Net cash provided by
       operating activities                         $11,877,464     $10,750,191
                                                    ===========     ===========




                                       37


<PAGE>





During the years ended December 31, 1997 and 1996,  ILLUMINET  redeemed  $34,356
and $23,248, respectively, of lender-issued,  non-interest-bearing  subordinated
capital  certificates,  which were  deducted  from the mortgage  loan  principal
balance.

Note 9:  Employee Benefit Plans
- -------------------------------

ILLUMINET has qualified  profit  sharing/401(k)  trust retirement plans covering
all employees subject to certain  eligibility  requirements.  ILLUMINET provides
matching   contributions   to  the  plans'  trusts  on  a  portion  of  employee
contributions  to the plans,  and also may,  at the  discretion  of the Board of
Directors, provide a discretionary contribution. For 1997 and 1996, contribution
expense was approximately $1,177,000 and $788,000, respectively.

Note 10:  Commitments and Contingencies
- ---------------------------------------

ILLUMINET  has  entered  into  non-cancelable  operating  leases for its various
facilities,  excluding its Lacey  headquarters site which is owned by ILLUMINET,
the most  significant of which is the lease of its Overland Park  facility.  The
lease for the Overland Park facility expires August, 1998. ILLUMINET has entered
into a separate  five-year lease with another party beginning August, 1998, with
the  option to renew the lease for an  additional  five-year  period,  for a new
Overland Park facility that is currently being  constructed to suit  ILLUMINET's
specifications.  During 1997 and 1996 rent  expense was $409,000  and  $321,000,
respectively.

Future  minimum lease  payments  under the  non-cancelable  leases for the years
ending December 31 are as follows:

            1998                              $  439,600
            1999                                 468,400
            2000                                 468,400
            2001                                 428,100
            2002                                 366,900
            Thereafter                           221,100
                                               ---------
                                              $2,392,500
                                               =========

ILLUMINET is party to a contract  with the  subsidiary  of one of its  corporate
shareholders which supplies  ILLUMINET with transmission  facilities in the form
of private leased lines. Such lines are leased from the corporate shareholder at
rates comparable to third-party  service  providers.  Payments  pursuant to this
contract  totaled  $1,101,000 for the period February 23, 1996, the Merger date,
to December 31, 1996, and $1,571,000 for the year ended December 31, 1997.

In December,  1997, ILLUMINET entered into a commitment to purchase $6.0 million
of network  equipment and expects to finalize a related  capital lease financing
arrangement in early 1998.


                                       38


<PAGE>




                REPORT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS

Board of Directors and Shareholders
Illuminet Holdings, Inc.

We have  audited  the  accompanying  consolidated  balance  sheets of  Illuminet
Holdings,  Inc.  ("ILLUMINET") as of December 31, 1997 and 1996, and the related
consolidated statements of income,  shareholders' equity, and cash flows for the
years  then  ended.  These  financial   statements  are  the  responsibility  of
ILLUMINET's  management.  Our  responsibility  is to express an opinion on these
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 financial  statements  referred to above present fairly, in
all material  respects,  the consolidated  financial position of ILLUMINET as of
December 31, 1997 and 1996, and the  consolidated  results of its operations and
its cash flows for the years then ended in conformity  with  generally  accepted
accounting principles.

/s/Ernst & Young LLP
Seattle, Washington
February 13, 1998

ITEM 8:   CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON
          ACCOUNTING AND FINANCIAL DISCLOSURE

         Not applicable.

                                              39     


<PAGE>






                                    PART III

ITEM 9:   DIRECTORS, EXECUTIVE OFFICERS, PROMOTERS AND
          CONTROL PERSONS; COMPLIANCE WITH SECTION 16(a) OF THE EXCHANGE ACT

Directors

         The persons currently serving as directors of Illuminet Holdings,
Inc. and their ages are set forth below.  All such individuals are
outside directors.

                     Name                                       Age
                     ----                                       ---

         Theodore D. Berns                                      48
         Eugene L. Cole                                         62
         Aubrey E. Judy                                         60
         Kenneth L. Lein                                        65
         Richard A. Lumpkin                                     63
         James S. Quarforth                                     43
         G. I. Ross                                             64
         James W. Strand                                        51
         Gregory J. Wilkinson                                   47


         Currently,  outside  directors receive a monthly fee of $300 except for
the Chairman of the Board of Directors  who  receives  $500 per month,  and each
outside director receives an annual fee of $7,000 worth of common stock options.
Additionally  in 1997, each outside  director  received an award of 2,000 common
stock  options.  Outside  directors  are also paid $300 per  meeting per day for
attendance at board or committee  meetings not to exceed a total of $600 per day
and are  reimbursed  for their expenses  incurred in attending  their  meetings.
Payment of monthly and meeting fees is made in the form of cash,  stock or stock
options at the election of the outside director. All common stock options issued
to outside  directors  in 1997 became  exercisable  by  December  31, 1997 at an
exercise price of $8.80 per share, and expire ten years after the date of grant.

     Mr.  Berns  has  been a  director  of  Illuminet  Holdings,  Inc.  and  its
predecessor  companies since October 1991. Mr. Berns  currently  serves as Chief
Executive Officer of OGI Telecom,  a competitive local exchange carrier ("CLEC")
located in  Portland,  Oregon.  From 1993 to October  1995,  Mr. Berns served as
Director,  President and Chief Executive Officer of AdVal  Communications,  Inc.
located in Vancouver, Washington. During 1993, Mr. Berns served as President and
Chief Executive Officer of TRT Communications,  Inc. From 1986 through 1992, Mr.
Berns was  employed  by Pacific  Telecom,  Inc.  (Pacific  Telecom),  located in
Vancouver, Washington. Mr. Berns served as President and Chief Operating Officer
of Pacific  Telecom.  Mr. Berns also served as Manager of Legal Affairs and Vice
President and Corporation Secretary. From 1984 to 1985, Mr. Berns served


                                       40


<PAGE>





as Vice  President of  Multivisions,  Ltd.,  located in  Anchorage,  Alaska.  In
addition,  Mr.  Berns  is a  former  director  of the  United  States  Telephone
Association ("USTA").

          Mr.  Cole has been a director  of  Illuminet  Holdings,  Inc.  and its
predecessor  companies  since its  formation  in 1981.  Mr. Cole worked at Canby
Telephone  Association,  Canby,  Oregon  ("Canby")  where in 1968,  he was named
General Manager and in 1986 became President of the Canby Telephone Association.
Mr.  Cole  also  served  as  President  of CTA  Service  Corporation,  and North
Willamette  Telecom from 1986 until March 1994.  He then retired on May 1, 1995.
Mr. Cole returned from  retirement in 1995 and currently  serves as President of
Canby Telephone Association and President of North Willamette Telecom, and until
June  1997  served  as  President  of CTA  Service  Corporation.  He served as a
Director of Western Rural Telephone  Association from 1976 to 1983 and served as
President  of that  organization  from 1977 to 1978.  Since  1970,  Mr. Cole has
served as Director of the Oregon Independent Telephone Association,  of which he
was the  President  from 1980 to 1981.  From  1982  until  1995,  he served as a
Trustee of the N.T.C.A.  Pension Trust. Mr. Cole served as director of the Board
of Rural Telephone Finance Cooperative 1990 to February 1993. From November 1994
until February 1996, Mr. Cole had been a Director of ITN.

         Mr.  Judy has been a  Director  of  Illuminet  Holdings,  Inc.  and its
predecessor  companies  since April 1982.  Mr. Judy was  employed  with  Farmers
Telephone Cooperative,  Inc., an Independent in Kingstree, South Carolina, since
1964 and served as its Executive  Vice  President from 1981 until his retirement
in December 1993. He served as a Director of Rural Telephone Finance Cooperative
from 1987 to 1994, the South Carolina  Telephone  Association from 1984 to 1994,
Williamsburg  First National Bank from 1984 to present,  PalmettoNet,  Inc. from
1985 to 1994, and South Carolina Net, Inc. from 1992 to 1994. Mr. Judy served on
the National Telcom  Corporation Board from 1985 to 1992, and served on the NTCA
Board of Directors  from 1976 to 1982,  holding the offices of  Secretary,  Vice
President and President.

     Mr.  Lein  has  been  a  Director  of  Illuminet  Holdings,  Inc.  and  its
predecessor  companies  since  1987.  Mr.  Lein  managed  Winnebago  Cooperative
Telephone Association ("Winnebago"),  a local exchange telephone company located
in Lake Mills,  Iowa, from 1974 to February 1998. Mr. Lein was a Director of ITN
from 1990 until the merger of ITN and U.S. Intelco in 1996. He is past President
of the  Organization  for the  Protection  and  Advancement  of Small  Telephone
Companies  ("OPASTCO").  He is a past member of the USTA Board of Directors  and
has served as  Secretary  of the USTA Board and is a past  Chairman  of the USTA
Small Company  Committee.  Mr. Lein is a co-founder of and past Director of Iowa
Network  Services.  He  presently  serves  on the  Board  of  MEANS  Telcom,  an
independent  telco  owned  Minnesota-based  centralized  equal  access  and long
distance company.

     Mr.  Lumpkin  has been a  director  of  Illuminet  Holdings,  Inc.  and its
predecessor companies since January 1989 and currently serves as Chairman of the
Board and Chairman of the Executive Committee.  Since 1957, Mr. Lumpkin has been
employed by Consolidated Communication Inc. ("CCI") and

                                       41


<PAGE>





its affiliates.  In September  1997, CCI was merged into McLeodUSA  Incorporated
("McLeodUSA").  Mr. Lumpkin became Vice Chairman and a Director of McLeodUSA. He
remains Chairman and CEO of Illinois Consolidated Telephone Company. Mr. Lumpkin
is currently a director of First Mid-Illinois  Bancshares and First Mid-Illinois
Bank and Trust in Mattoon,  Illinois, Central Illinois Public Service Company in
Springfield, Illinois, and Ameren Corporation, a public utility headquartered in
St. Louis, Missouri. Mr. Lumpkin is also a former Director and past President of
the Illinois Telephone Association and USTA.

     Mr.  Quarforth  has been a Director of  Illuminet  Holdings,  Inc.  and its
predecessor  companies  since January 1989. Mr.  Quarforth  currently  serves as
President and Chief Executive Officer of CFW Communications Company ("CFWC") and
Chairman and Chief Executive Officer of its affiliates.  Mr. Quarforth is also a
Director of American Telecasting,  Inc. and Virginia Financial Corporation.  Mr.
Quarforth is a past  Director and  President of the Virginia  Telecommunications
Industry  Association.  Mr.  Quarforth  is also  Chairman  of the  Virginia  PCS
Alliance, L.C. and West Virginia PCS Alliance L.C.

     Mr.  Ross  has  been  a  Director  of  Illuminet  Holdings,  Inc.  and  its
predecessor  companies  since  January  1989.  Since  1970,  Mr.  Ross  has been
President,   Chief   Executive   Officer   and  a  director   of   Lufkin-Conroe
Communications  Company ("LCC"),  and Chairman & CEO of its operating companies,
located in Texas. Mr. Ross has served on the Boards of the Texas  Association of
Business  since 1980 and First Bank of Conroe,  Texas,  since 1983. In 1972, Mr.
Ross  became a  director  and  member of the  Executive  Committee  of the Texas
Telephone Association and in 1975 its Chairman.  Mr. Ross has served as Chairman
of the Board of TECA since 1988.  Mr.  Ross has been a member of the  Electronic
Engineering  Technical Advisory Committee at Texas A&M University since 1974 and
holds an MBA Finance. Mr. Ross is a member of the USTA Board.


     Mr.  Strand  has  been a  Director  of  Illuminet  Holdings,  Inc.  and its
predecessor  companies since May 1992. Since 1990, Mr. Strand has been President
of  Diversified  Operations  and  a  director  of  Aliant  Communications,  Inc.
("Aliant")(formerly  Lincoln  Telecommunications  Company)  located in  Lincoln,
Nebraska. Mr. Strand has served on the Board of the Cellular  Telecommunications
Industry  Association  ("CTIA")  and was elected to the  Executive  Committee in
1993.  He also  serves as  subcommittee  chairman  for  operations  in the small
operators  caucus,  Chairman of the CTIA  Foundation and is a member of the CTIA
Technology Operations Policy Council ("TOPS") of the Board of Directors.

     Mr.  Wilkinson  has been a Director of  Illuminet  Holdings,  Inc.  and its
predecessor  companies since February 1986 and currently serves as Vice Chairman
of the Board and Chairman of the Audit/Finance Committee. Mr. Wilkinson has been
associated with Telephone & Data Systems, Inc. ("TDS"), a communications holding
company with  headquarters in Madison,  Wisconsin,  in various  capacities since
1972.  Since  January  1992,  he has held the  position  of Vice  President  and
Controller with that company and was its Corporate  Controller prior thereto. He
also serves as an officer and

                                       42


<PAGE>





director of various  subsidiaries of TDS. Mr.  Wilkinson holds B.S.,  M.B.A. and
J.D. degrees from the University of Wisconsin. He is licensed to practice law in
the Wisconsin State and federal courts.



                                       43


<PAGE>





Executive Officers

         The  persons  currently  serving as  executive  officers  of  Illuminet
Holdings, Inc. or its wholly-owned  subsidiary Illuminet,  Inc., their ages, and
their positions are set forth below:


  Name                    Age                 Position
  ----                    ---                 --------
Roger H. Moore            56         President and Chief Executive
                                       Officer - Illuminet Holdings, Inc.
                                       President and Chief Executive
                                       Officer - Illuminet, Inc.
Daniel E. Weiss           50         Vice President, Secretary/Treasurer
                                        - Illuminet Holdings, Inc.
                                        Vice President - Illuminet, Inc.
Bruce E. Johnson          49         Vice President - Illuminet, Inc.
David Nicol               52         Vice President - Illuminet, Inc.
F. Terry Kremian          50         Vice President - Illuminet, Inc.

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


     The  following  is a summary  of the  experience  of each of the  executive
officers:

     Mr.  Moore has been  President  and Chief  Executive  Officer of  Illuminet
Holdings, Inc. and Illuminet, Inc. since February 1996. Prior to that, Mr. Moore
served as Vice  President  of Major  Accounts of Northern  Telecom  from 1994 to
December 1995. He was President of Northern Telecom Japan from 1991 to 1994. Mr.
Moore has held other senior  positions  with Northern  Telecom since joining the
company  in 1985.  Prior to  joining  Northern  Telecom,  Mr.  Moore  was,  from
1982-1985,  the  President  of AT&T  Canada.  Mr.  Moore  has  over 30  years of
experience in the  telecommunications  and business systems industry.  Mr. Moore
received  a  Bachelor  of  Science  degree  in  general  science  from  Virginia
Polytechnic Institute.

     Mr. Weiss has been Illuminet Holdings,  Inc. Vice President - Finance since
February 1996 and the Company's  Secretary and Treasurer  since April 1996.  Mr.
Weiss also serves as the Vice President - Finance for Illuminet, Inc. as well as
its  Secretary  and   Treasurer.   Prior  to  that  Mr.  Weiss  served  as  Vice
President-Finance,  Treasurer  and Assistant  Treasurer for Illuminet  Holdings,
Inc.'s predecessor  companies since 1979. Mr. Weiss served in various capacities
for Evergreen State College, Olympia,  Washington,  from 1971 to 1979, including
Accounting  Manager,  Assistant  Director of Facilities and Academic  Operations
Officer. Mr. Weiss graduated from Western Washington  University with a Bachelor
of Science  degree in  Accounting  and is a member of the American  Institute of
Certified  Public  Accountants  and the Washington  Society of Certified  Public
Accountants.

     Mr.  Johnson has been  Illuminet,  Inc.'s Vice  President - Operations  and
Engineering since February 1996. Prior to that he served as ITN's


                                       44


<PAGE>





Vice  President - Operations  and  Engineering  from July 1992 to February 1996.
Prior to joining  ITN,  Mr.  Johnson  was  responsible  for  implementing  NYNEX
Corporation's SS7 network. This included strategic planning,  network design and
SS7 service  testing.  While at NYNEX Mr. Johnson was  responsible for deploying
one of the first Industry Intelligent Network services and played an active role
in providing  SS7  performance  data to the FCC for their 800 Data Base mandate.
From 1970 to 1983 Mr.  Johnson served New England  Telephone in various  Outside
Plant  Engineering and Operations  assignments.  Mr. Johnson has participated on
numerous  industry  standards and technical  committees,  including the American
National  Standards  Institute's T1 SS7 standards  committee and was a member of
the  original  work group that  issued  the first SS7 TCAP  standards  for North
America.  Mr.  Johnson  holds a BS in  Computer  Science  and  Mathematics  from
Worcester  State  College  and has been  awarded an MBA from the  University  of
Kansas.

         Mr.  Nicol  has  been  Illuminet,   Inc.'s  Vice  President  -  Product
Management and  Development  since  February  1996.  Prior to that, he served as
ITN's Vice President  Planning and  Administration  from February 1994. Prior to
ITN, Mr. Nicol was Chief Operating  Officer of a privately held computer network
integrator on the West Coast,  where he was instrumental in its acquisition by a
NYSE company.  Earlier in a similar  capacity,  he had likewise  engineered  the
acquisition of a leading LAN/WAN systems integrator in the Midwest. From 1987 to
1990, he was Vice President  Corporate Planning for United Telecom (now Sprint),
having served since 1984 as its Vice President Planning - Telephone Group. Prior
to Sprint, Mr. Nicol was a consultant to a wide variety of Fortune 500 and other
companies.  Mr. Nicol's undergraduate degree in Aeronautical Engineering is from
Ohio State University.  He holds a masters and doctorate in Industrial Economics
and  Corporate  Finance  from  Case  Western  Reserve  University.   His  entire
thirty-year  career has been in technology  industry  sectors,  the last fifteen
directly in telecommunications.

         Mr. Kremian has been Illuminet,  Inc's.  Vice President - Marketing and
Sales  since  November  1997.  Prior to that Mr.  Kremian  was with MCI where he
directed  Carrier  Sales,  National  Accounts and provided  consultation  to the
Canadian  Provincial  phone companies on competition in the marketplace  through
the MCI  Stentor  Alliance.  Mr.  Kremian  has  more  than 15  years  of  senior
experience in  telecommunications,  serving in a variety of management positions
that include sales, operations, legal and administration.





                                       45


<PAGE>





ITEM 10:   EXECUTIVE COMPENSATION

         The  following  table sets  forth for each of the last three  completed
fiscal  years the  compensation  received by  Illuminet  Holdings,  Inc.'s Chief
Executive  Officer and four other most  highly  compensated  executive  officers
based on salary  and  bonus for the last  completed  fiscal  year  (collectively
referred to herein as the "Named Executive Officers").



<TABLE>
<CAPTION>

                           SUMMARY COMPENSATION TABLE


                                                                                            Long-Term Compensation

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

                                            Annual Compensation                      Awards                          Payouts

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

                                                                              Securities                            All Other
                                                                              Underlying         LTIP            Compensation ($)
Name and Principal                                                             Options/
    Position              Year           Salary ($)         Bonus ($)          SARs (#)
- ------------------        -----           ----------         ---------       ----------         ----             ----------------
<S>                       <C>              <C>               <C>              <C>               <C>               <C>

Roger H. Moore,            1997             225,000           --(2)            --(3)            --(3)              8,000(4)(5)
   President and           1996(1)          225,000          118,750                            --(3)              5,600(6)
   Chief Executive
   Officer

Daniel E. Weiss,           1997             112,824           --(2)            20,000           --                 5,641(4)(7)
   Vice President          1996             110,863           22,643                            15,095(8)         14,430(9)
                           1995             106,074           14,500                            --                 9,220(10)
Raymond E.                 1997(11)         152,112           --(2)            10,000           --                 7,606(4)(12)
Donnelly, Vice             1996(14)         122,062           22,469                            14,979(8)         20,287(13)
President

Bruce E. Johnson,          1997             131,700           --(2)            20,000           --                 6,585(4)
Vice President             1996(14)         105,676           19,936                            13,290(8)          6,893(15)

David Nicol, Vice          1997             132,036           --(2)            20,000           --                 6,602(4)
President                  1996(14)         103,292           20,642                            13,761(8)          16,344(16)


</TABLE>


                                       46


<PAGE>






- ------------------------
(1)      Mr. Moore was hired effective January 1, 1996.

(2)      Bonus amounts for this executive for the year 1997 have not yet been
         determined.

(3)      Mr. Moore has not finalized the terms of his employment  agreement with
         respect to long-term incentives.

(4)      Retirement  trust profit sharing  contributions  for the year 1997 have
         not yet been determined and are therefore not included in this amount.

(5)      Represents $8,000 in ILLUMINET 401(k) matching contributions.

(6)      Represents $5,600 in ILLUMINET 401(k) matching contributions.

(7)      Represents $5,641 in ILLUMINET 401(k) matching contributions.

(8)      Long-term cash incentive  awards for the year 1996 that will be due and
         payable  on  December  31,  1998 if  executive  is  still  employed  by
         ILLUMINET,  or has not been  terminated for cause through  December 31,
         1998.

(9)      Represents $4,479 in ILLUMINET 401(k) matching contributions and $9,951
         in ILLUMINET retirement trust profit sharing contributions.

(10)     Includes  $3,182 in U.S.  Intelco  401(k)  matching  contributions  and
         $6,038 in U.S. Intelco retirement trust profit sharing contributions.

(11)     Mr. Donnelly terminated employment effective December 31, 1997.

(12)     Represents $7,606 in ILLUMINET 401(k) matching contributions.

(13)     Represents  $5,841  in  ILLUMINET  401(k)  matching  contributions  and
         $14,446 in ILLUMINET retirement trust profit sharing contributions.

(14)     Messrs.  Donnelly,  Johnson  and  Nicol  were  deemed  hired  effective
         February 23, 1996, the effective date of the Merger.

(15)     Represents  $5,057  in  ILLUMINET  401(k)  matching  contributions  and
         $11,836 in ILLUMINET retirement trust profit sharing contributions.

(16)     Represents  $4,925  in  ILLUMINET  401(k)  matching  contributions  and
         $11,419 in ILLUMINET retirement trust profit sharing contributions.





                                       47



<PAGE>






Grants Of Stock Options

     The following  table sets forth options  granted during 1997 to each of the
Named Executive Officers:
<TABLE>
<CAPTION>

                                       OPTION/SAR GRANTS IN THE LAST FISCAL YEAR
                                                  (Individual Grants)


                                                          Percent of
                                   Number of                Total
                                  Securities            Options/SARs
                                  Underlying             Granted to            Exercise Or
                                 Options/SARs           Employees in           Base Price            Expiration
  Name                           Granted (#)            Fiscal Year             ($/Sh)                 Date
- ------------                    ------------            ------------          ------------          ------------
<S>                             <C>                     <C>                   <C>                   <C>                     

Daniel E. Weiss                 20,000(1)                11.66%                 8.80                10/29/2007
Raymond E. Donnelly             10,000(2)                 5.83%                 8.80                12/31/99
Bruce E. Johnson                20,000(1)                11.66%                 8.80                10/29/2007
David Nicol                     20,000(1)                11.66%                 8.80                10/29/2007
- --------------

</TABLE>

These employee options are  exercisable  ratably  over five years and expire ten
     years  from  the  date  of  grant,   provided  that  such  officer  remains
     continuously employed by ILLUMINET.

These options became  exercisable on Mr. Donnelly's  retirement date of December
     31, 1997 and expire two years after such retirement date.




                                       48



<PAGE>





Exercises Of Stock Options

         The following table provides information on option exercises in 1997 by
Named Executive Officers and the value of such officers'  unexercised options on
December 31, 1997:

<TABLE>
<CAPTION>

                                          AGGREGATED OPTION/SAR EXERCISES IN
                                     LAST FISCAL YEAR AND FY-END OPTION/SAR VALUES


                                                                Number of Securities          Value of Unexercised In-
                                                                Underlying Unexercised       The-Money Options/SARs at
                        Shares                                 Options/SARs at FY-End (#)           FY-End ($)(1)
                      Acquired on               Value
          Name        Exercise (#)           Realized ($)
                                                               --------------------------    --------------------------

                                                            Exercisable     Unexercisable     Exercisable     Unexercisable
- -------------------  ------------            ------------   ------------    ------------      -----------     ------------
<S>                       <C>                <C>              <C>               <C>             <C>            <C>

Daniel E. Weiss              --                   --             --               20,000           --           44,000
Raymond E                    --                   --           10,000               --           22,000           --
Donnelly
Bruce E. Johnson             --                   --                              20,000            --          44,000
David Nicol                  --                   --                              20,000            --          44,000

- ------------------
</TABLE>

         (1) As ILLUMINET's stock is not traded, a readily  ascertainable market
         value is not available.  A value of $11.00 per share,  representing the
         Board of Director's  good-faith  estimate,  was used as of December 31,
         1997,  and for purposes of determining  compensation  related to grants
         made in 1997.




                                       49


<PAGE>





EMPLOYMENT AGREEMENTS

ILLUMINET has agreements with Messrs. Moore, Nicol and Johnson pursuant to which
such  person's  employment  by ILLUMINET  may be  terminated by ILLUMINET at any
time, with or without cause.  The agreements  provide for an initial annual base
compensation of $250,000, $110,000 and $108,000, respectively (which such annual
base  compensation has been  subsequently  adjusted by the Board of Directors to
$132,036  for Mr.  Nicol,$131,700  for Mr.  Johnson for the year ended  December
31,1997),  and provide for the  opportunity  to earn bonuses in accordance  with
incentive plans established. Each such agreement provides, that, in the event of
involuntary termination (as defined therein) for other than cause such executive
officer will be entitled to receive a severance payment in an amount equal to 12
months of such  executive  officer's then base  compensation.  Mr. Moore is also
entitled to such termination payment in the event of his election to resign as a
result of a change of control.  In accordance  with the terms of his  agreement,
Mr. Donnelly  received a lump-sum payment equal to his annual base  compensation
in the amount of $152,112 upon his termination.



                                       50


<PAGE>
ITEM 11:   SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

         The following  table sets forth as of December 31, 1997 the  beneficial
ownership of each class of Illuminet Holdings,  Inc.'s capital stock held by (i)
owners  of five  percent  (5%)  or more of any  class,  (ii)  each  director  of
Illuminet  Holdings,  Inc.,  (iii) each  executive  officer named in the Summary
Compensation  Table, and (iv) all directors and executive  officers of ILLUMINET
as a group.
<TABLE>
<CAPTION>
                                                                                                        Fully
                                             Shares of                    Shares of                    Diluted
                                             Illuminet                    Illuminet                   Shares of                 
                                              Common        Percent       Series A       Percent      Illuminet       Percent   
                                              Stock           of         Preferred         of          Common           of      
                Name                                        Class          Stock         Class        Stock(1)        Class     
                -----                        ------         ------       --------        ------       -------         ------    
<S>                                          <C>            <C>             <C>           <C>         <C>             <C>       
Aliant Communications, Inc. (formerly       136,954          2.53            156          6.36        203,293          3.15     
Lincoln Telecommunications Co.)
P.O. Box 81309
1440 M Street
Lincoln, NE 68508
CFW Communications Company, Inc.            104,000          1.92            172          7.02        178,751          2.77     
401 Spring Lane
Suite 300
P.O. Box 1990
Waynesboro, VA 22980-1990
Coastal Utilities, Inc.                      68,130          1.26            125          5.10        119,975          1.86     
P.O. Box 631
Hinesville, GA 31310
Consolidated Communication, Inc.             51,029            *             523         21.34        267,677          4.15     
121 S. 17th Street
Mattoon, IL 61938
Rock Hill Telephone Co.                      25,000            *             303         12.36        148,624          2.30     
P.O. Box 470
330 E. Black St 
Rock Hill, SC 29731
Shenandoah Telephone Company                 61,592          1.14            136          5.55        118,098          1.83     
P.O. Box 459
Edinburg, VA 22824
Telephone & Data Systems, Inc.              621,556         11.47             --            --        621,556          9.64         
Suite 4000
30 N. LaSalle St 
Chicago, IL 60602
                                                              Percent
                                                                of
                                                 Total         Total
                Name                            Votes(2)       Votes
                -----                           -------        ------
<S>                                             <C>             <C>
Aliant Communications, Inc. (formerly           152,554          2.73
Lincoln Telecommunications Co.)
P.O. Box 81309
1440 M Street
Lincoln, NE 68508
CFW Communications Company, Inc.                 121,200         2.17
401 Spring Lane
Suite 300
P.O. Box 1990
Waynesboro, VA 22980-1990
Coastal Utilities, Inc.                          80,630          1.44
P.O. Box 631
Hinesville, GA 31310
Consolidated Communication, Inc.                103,329          1.85
121 S. 17th Street
Mattoon, IL 61938
Rock Hill Telephone Co.                          55,300           *
P.O. Box 470
330 E. Black St 
Rock Hill, SC 29731
Shenandoah Telephone Company                     75,192          1.34
P.O. Box 459
Edinburg, VA  22824
Telephone & Data Systems, Inc.                  621,556         11.11
Suite 4000
30 N. LaSalle St 
Chicago, IL 60602
</TABLE>
                                       51


<PAGE>


<TABLE>
<CAPTION>

                                                                          Fully                          
                            Shares of             Shares of              Diluted   
                            Illuminet             Illuminet             Shares of                                   Percent
                             Common     Percent   Series A   Percent    Illuminet       Percent                        of
                              Stock        of     Preferred     of        Common           of          Total         Total
       Name                              Class      Stock     Class      Stock(1)        Class        Votes(2)       Votes
      -----                  ------      ------   --------    ------     -------         ------       -------        ------
<S>                           <C>         <C>      <C>        <C>        <C>            <C>          <C>            <C>            

Theodore D. Berns(3)          9,571         *          --       --        9,571             *          2,867            *
Eugene L. Cole(4)            35,047         *          --       --       35,407             *         28,343            *
Aubrey E. Judy(5)             7,107         *          --       --        7,107             *            736            *
Kenneth L. Lein(6)           26,258         *           9        *       29,920             *         20,454            *
Richard A. Lumpkin(7)        61,767      1.14         523    21.34      278,415          4.32        106,807         1.91
James S. Quarforth(8)       113,144      2.09         176     7.18      189,563          2.94        124,040         2.22
G. I. Ross(9)               218,007      4.02         105     4.28      261,702          4.06        222,247         3.97
James W. Strand(10)         146,115      2.70         156     6.36      212,454          3.29        155,122         2.77
Gregory J. Wilkinson(11)    629,207     11.62          --       --      629,207          9.76        622,503        11.13
Roger H. Moore                 --          --          --       --           --            --             --           --
Daniel E. Weiss                --          --          --       --           --            --             --           --
Raymond E. Donnelly(12)      15,739         *          20        *       23,836             *          7,739            *
David Nicol                     971         *          --       --          971             *            971            *
Bruce E. Johnson              2,381         *           7        *        5,276             *          3,081            *
                             ------      ------   --------    ------     -------        ------       -------        ------
Executive Officers and 
Directors as a Group      1,265,314     23.36         996    40.64    1,683,069         26.10      1,294,910        23.16
                          =========    =======   ========    ======   =========         ======     =========       =======



                                       52

</TABLE>

<PAGE>





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

*        Less than 1%

(1)  Assumes  conversion into shares of Illuminet  Common Stock of all shares of
     each  series of  Illuminet  Series A  Preferred  Stock,  and the  Illuminet
     Debentures and accrued  interest  thereon as of December 31, 1997 (assuming
     such  interest  is  deemed  principal  by the  holders  of  such  Illuminet
     Debentures).

(2)  Represents  total number of votes for  outstanding  stock and percentage of
     votes held.  Holders of Illuminet  Series A Preferred Stock are entitled to
     100 votes per share.

(3)  Includes  6,704 shares  issuable to Mr. Berns pursuant to options within 60
     days after December 31, 1997.

(4)  As an  executive  officer of Canby,  Mr. Cole may be deemed the  beneficial
     owner of the 27,607  shares of Illuminet  Common Stock owned by Canby,  and
     6,704 shares  issuable to Mr. Cole pursuant to options within 60 days after
     December 31, 1997.

(5)  Includes  6,371 shares  issuable to Mr. Judy pursuant to options  within 60
     days after December 31, 1997.

(6)  As an executive officer of Winnebago, Mr. Lein may be deemed the beneficial
     owner  of the  18,818  shares  of  Illuminet  Common  Stock  and 1 share of
     Illuminet  Series A Preferred  Stock owned by  Winnebago,  and 6,704 shares
     issuable to Mr. Lein pursuant to options  within 60 days after December 31,
     1997. In February 1998, Mr. Lein retired from Winnebago and since that date
     is no longer affiliated with Winnebago.

(7)  As a director and executive officer of McLeodUSA, Mr. Lumpkin may be deemed
     the beneficial owner of the 51,029 shares of Illuminet Common Stock and 523
     shares of Illuminet  Series A Preferred  Stock owned by CCI, a wholly owned
     subsidiary of McLeodUSA,  and 7,260 shares issuable to Mr. Lumpkin pursuant
     to options within 60 days after December 31, 1997.

(8)  As an executive officer of CFWC, Mr. Quarforth may be deemed the beneficial
     owner of the 104,000  shares of  Illuminet  Common  Stock and 172 shares of
     Illuminet Series A Preferred Stock owned by CFWC, and 6,704 shares issuable
     to Mr.  Quarforth  pursuant to options  within 60 days after  December  31,
     1997.

(9)  As a director  and  executive  officer of LCC,  Mr.  Ross may be deemed the
     beneficial  owner of the 208,930  shares of Illuminet  Common Stock and 105
     shares of Illuminet Series A Preferred Stock owned by LCC, and 6,260 shares
     issuable to Mr. Ross pursuant to options  within 60 days after December 31,
     1997.



                                       53
<PAGE>





(10) As a director and executive officer of Aliant, Mr. Strand may be deemed the
     beneficial  owner of the 136,954  shares of Illuminet  Common Stock and 156
     shares of  Illuminet  Series A Preferred  Stock owned by Aliant,  and 6,593
     shares  issuable to Mr.  Strand  pursuant  to options  within 60 days after
     December 31, 1997.

(11) As an executive  officer of TDS, Mr. Wilkinson may be deemed the beneficial
     owner of 621,556  shares of Illuminet  Common Stock  beneficially  owned by
     TDS, and 6,704 shares issuable to Mr. Wilkinson  pursuant to options within
     60 days after December 31, 1997.

(12) Includes 10,000 shares issuable to Mr. Donnelly  pursuant to options within
     60 days after December 31, 1997.




                                       54


<PAGE>





ITEM 12:   CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

ILLUMINET provides certain services to companies who have an officer or director
on the board of directors of Illuminet  Holdings,  Inc., or to companies who own
five percent (5%) or more of any class of Illuminet  Holdings,  Inc. stock.  The
services  provided and the rates charged are the same as those provided to other
customers. For the year ended December 31, 1997, and for the period February 23,
1996, the Merger date, to December 31, 1996, ILLUMINET received (1) $956,000 and
$578,000,  respectively,  from McLeodUSA or its affiliates, of which Mr. Lumpkin
is a director and executive  officer;  (2) $698,000 and $619,000,  respectively,
from Aliant or its  affiliates,  of which Mr. Strand is a director and executive
officer; (3) $106,000 and $279,000, respectively, from LCC, of which Mr. Ross is
a director and executive officer; (4) $235,000 and $147,000,  respectively, from
CFWC or its  affiliates,  of which Mr.  Quarforth is an executive  officer;  (5)
$172,000 and  $194,000,  respectively,  from Rock Hill  Telephone  Company;  (6)
$71,000 and $38,000,  respectively from Shenandoah  Telephone  Company,  and (7)
$134,000 and $148,000, respectively, from Coastal Utilities, Inc. Under the same
terms,  ILLUMINET  received  from TDS, of which Mr.  Wilkinson  is an  executive
officer,  $988,000 and $633,000 for the years ended  December 31, 1997 and 1996,
respectively.

For  participation  in certain data base services  provided by ILLUMINET for the
year ended December 31, 1997,  and for the period  February 23, 1996, the Merger
date, to December 31, 1996, ILLUMINET paid at rates that are the same as paid to
other  participants  (1) $82,000  and  $64,000,  respectively,  to Aliant or its
affiliates,  of which Mr.  Strand is a director  and  executive  officer and (2)
$65,000 and $21,000,  respectively, to McLeodUSA or its affiliates, of which Mr.
Lumpkin  is a  director  and  executive  officer.  Under the same  participation
arrangements,  ILLUMINET  paid  TDS,  of which  Mr.  Wilkinson  is an  executive
officer,  $92,000 and $72,000  for the years ended  December  31, 1997 and 1996,
respectively.

For use of  transmission  lines in the form of private leased lines for the year
ended  December 31,  1997,for the period  February 23, 1996, the Merger date, to
December 31, 1996,  ILLUMINET paid, at rates  comparable to third-party  service
providers,  $1,571,000  and  $1,101,000,   respectively,  to  McLeodUSA  or  its
affiliates  of which Mr.  Lumpkin  is a  director,  and  $102,000  and  $77,000,
respectively, to Aliant or its affiliates, of which Mr. Strand is a director and
executive officer.





<PAGE>





 ITEM 13:   EXHIBITS, LIST AND REPORTS ON FORM 8-K

           (a)  EXHIBITS REQUIRED TO BE FILED BY ITEM 601 OF REGULATION
                S-B
  EXHIBIT 3.1          Certificate of Incorporation of U.S Telnet Holdings, Inc.

  EXHIBIT 3.2          Certificate of Amendment of Certificate of  Incorporation
                       of U.S. Telnet Holdings, Inc. dated September 21, 1995.

  EXHIBIT 3.3          Certificate of Amendment of Certificate of  Incorporation
                       of USTN Holdings, Inc. dated January 23, 1996.

  EXHIBIT 3.4          Bylaws of USTN Holdings, Inc.

  EXHIBIT 3.5          Certificate of Amendment of Certificate of  Incorporation
                       of USTN Holdings, Inc. dated May 1, 1997.

  EXHIBIT 3.6          First  Amendment  to the By-Laws of  Illuminet  Holdings,
                       Inc. dated June 13, 1996

  EXHIBIT 4.1          Specimen Common Stock Certificate of USTN Holdings,  Inc.
                       (Incorporated   by  reference  to  Exhibit  4.1  to  USTN
                       Holdings,  Inc.'s Registration Statement on Form S-4, No.
                       33-97876).

  EXHIBIT 4.2          Specimen  Common  Stock   Certificate   (Incorporated  by
                       reference  to  Exhibit  4.2  to  USTN  Holdings,   Inc.'s
                       Registration Statement on Form S-4, No. 33-97876).

  EXHIBIT 4.3(a)       Indenture,  dated  August 15,  1991  between  Independent
                       Telecommunications  Network,  Inc.  and  United  Missouri
                       Bank,  N.A.,  as  trustee  and  form  of  7.5%Convertible
                       Redeemable  Subordinated  Debentures  due August 15, 2001
                       (Incorporated   by  reference  to  Exhibit  4.3  to  USTN
                       Holdings,  Inc.'s Registration Statement on Form S-4, No.
                       33-97876).

  EXHIBIT 4.3(b)       First   Supplement  to  Indenture   between   Independent
                       Telecommunications  Network, Inc. and USTN Holdings, Inc.
                       and USTN  Services,  Inc.  and UMB Bank,  N.A.,  Trustee,
                       dated February 12, 1996.  Supplemental to Indenture dated
                       August 15, 1991 (Incorporated by reference to Exhibit 4.3
                       to USTN  Holdings,  Inc.'s  Annual  Report on Form 10-KSB
                       dated March 28, 1997).

  EXHIBIT 4.4          Second  Supplement  to Indenture  between USTN  Holdings,
                       Inc.  and  USTN  Services,  Inc.  and UMB  Bank,  N.A.  ,
                       Trustee,  dated June 24, 1996.  Supplemental to Indenture
                       dated  August 15,  1991.  (Incorporated  by  reference to
                       Exhibit 4.4 to USTN




<PAGE>





                       Holdings,  Inc.'s   Form   10-KSB  for  the  year   ended
                       December 31, 1996, No. 33-97876).

  EXHIBIT 4.5          Certificate of Designation of USTN Holdings,  Inc. Series
                       A Convertible  Preferred Stock (Incorporated by reference
                       to Exhibit 4.5 to USTN  Holdings,  Inc.'s Form 10-KSB for
                       the year ended December 31, 1996, No. 33-97876).

  EXHIBIT 10.1         Office  Building Lease dated June 25, 1993 by and between
                       The   Travelers   Insurance   Company   and   Independent
                       Telecommunications   Network,   Inc.   (Incorporated   by
                       reference  to  Exhibit  10.1  to  USTN  Holdings,  Inc.'s
                       Registration Statement on Form S- 4, No. 33-97876).

                      Management Contracts and Compensatory Plans
                      -------------------------------------------

  EXHIBIT 10.2         ILLUMINET   1996   Executive    Long-Term    Bonus   Plan
                       (Incorporated   by  reference  to  Exhibit  4.5  to  USTN
                       Holdings,  Inc.'s Form 10-KSB for the year ended December
                       31, 1996, No. 33-97876).

  EXHIBIT 10.3         ILLUMINET   1996   Executive    Short-Term   Bonus   Plan
                       (Incorporated   by  reference  to  Exhibit  4.5  to  USTN
                       Holdings,  Inc.'s Form 10-KSB for the year ended December
                       31, 1996, No. 33-97876).

  EXHIBIT 10.4         Employment   Agreement   by   and   between   Independent
                       Telecommunications,  Inc. and Bruce Johnson (Incorporated
                       by  reference to Exhibit  10.5 to USTN  Holdings,  Inc.'s
                       Registration Statement on Form S- 4, No. 33-97876).

  EXHIBIT 10.5         Employment   Agreement   by   and   between   Independent
                       Telecommunications, Inc. and David J. Nicol (Incorporated
                       by  reference to Exhibit  10.7 to USTN  Holdings,  Inc.'s
                       Registration Statement on Form S- 4, No. 33-97876).

  EXHIBIT 10.6         Employment   Agreement   by   and   between   Independent
                       Telecommunications,   Inc.   and   Raymond  E.   Donnelly
                       (Incorporated  by  reference  to  Exhibit  10.8  to  USTN
                       Holdings, Inc.'s Registration Statement on Form S- 4, No.
                       33-97876).

  EXHIBIT 10.7         Employment   Agreement  by  and  between   U.S.   Intelco
                       Networks,  Inc.  and  Kingsley W. Hill  (Incorporated  by
                       reference  to  Exhibit  10.10  to USTN  Holdings,  Inc.'s
                       Registration Statement on Form S-4, No. 33- 97876).





<PAGE>





  EXHIBIT 10.8         Independent   Telecommunications   Network,   Inc.   1995
                       Long-Term  Bonus  Plan   (Incorporated  by  reference  to
                       Exhibit  10.13  to  USTN  Holdings,  Inc.'s  Registration
                       Statement on Form S-4, No. 33-97876).

  EXHIBIT 10.9         Independent   Telecommunications   Network,   Inc.   1995
                       Short-Term  Bonus  Plan  (Incorporated  by  reference  to
                       Exhibit  10.14  to  USTN  Holdings,  Inc.'s  Registration
                       Statement on Form S-4, No. 33-97876).

  EXHIBIT  10.10       Form of Severance  Agreement  and General  Release by and
                       between U.S.  Intelco  Holdings,  Inc. and Robert D. Cook
                       (Incorporated  by  reference  to  Exhibit  10.15  to USTN
                       Holdings,  Inc.'s Registration Statement on Form S-4, No.
                       33-97876).

  EXHIBIT  10.11       Form of  Letter  Agreement  of  Employment  by and  among
                       Independent   Telecommunications   Network,   Inc.,  U.S.
                       Intelco  Holdings,  Inc. and Roger H. Moore regarding Mr.
                       Moore's  employment  as  President  and  Chief  Executive
                       Officer of USTN Holdings, Inc. (Incorporated by reference
                       to Exhibit 10.16 to USTN  Holdings,  Inc.'s  Registration
                       Statement on Form S- 4, No. 33-97876).

  EXHIBIT 10.12        Illuminet Holdings, Inc. 1997 Equity Incentive Plan

  EXHIBIT  10.13       Illuminet  Holdings,  Inc. 1997 Equity  Incentive  Plan -
                       Non-Qualified Stock Option Award Agreement

  EXHIBIT 10.14        Illuminet  Holdings,  Inc. 1997 Equity  Incentive  Plan -
                       Director Stock Option Award Agreement

  EXHIBIT 10.15        Illuminet, Inc. 1997 Short-Term Incentive Plan

  EXHIBIT 10.16        Form of Letter Agreement between  Illuminet,  Inc. and F.
                       Terry Kremian regarding Mr. Kremian's  employment as Vice
                       President-Sales and Marketing of Illuminet, Inc.

  EXHIBIT 21           LIST OF SUBSIDIARIES AS OF DECEMBER 31, 1997

  EXHIBIT 27           FINANCIAL DATA SCHEDULE

         (b)  REPORTS ON FORM 8-K
                NONE





<PAGE>





                                 SIGNATURES

In accordance with  requirements of the Exchange Act, the Registrant caused this
report to be signed on its behalf by the undersigned, thereunto duly
authorized.

                                                     ILLUMINET HOLDINGS, INC.



                                                By:
                                                Roger H. Moore
                                                President and Chief Executive
                                                Officer
                                                Date:  March 10, 1998


In  accordance  with the Exchange  Act, this report has been signed below by the
following  persons on behalf of the  Registrant and in the capacities and on the
dates indicated.

              SIGNATURE/TITLE                                 DATE


By:  /s/ Roger H. Moore                                       March 10, 1998
     Roger H. Moore, President and Chief Executive Officer
     (Principal Executive Officer)


By:  /s/ Daniel E. Weiss                                      March  6, 1998
     Daniel E. Weiss, Vice President - Finance
     (Principal Financial Officer and Accounting Officer)


By:  /s/ Richard A. Lumpkin                                   March  25, 1998
    Richard A. Lumpkin, Chairman of the Board


By:  /s/ Gregory J. Wilkinson                                 March  18, 1998
     Gregory J. Wilkinson, Vice Chairman of the Board


By:  /s/ Theodore D. Berns                                    March  18, 1998
     Theodore D. Berns, Director


By:  /s/ Eugene L. Cole                                       March  25, 1998
     Eugene L. Cole, Director


By:  /s/ Aubrey E. Judy                                       March  19, 1998
     Aubrey E. Judy, Director




<PAGE>







By:  /s/ Kenneth L. Lein                                      March 21, 1998
     Kenneth L. Lein, Director


By:  /s/ James S. Quarforth                                   March 25, 1998
     James S. Quarforth, Director


By:  /s/ G. I. Ross                                           March  19, 1998
     G. I. Ross, Director


By:  /s/ James W. Strand                                      March  16, 1998
     James W. Strand, Director






                                   EXHIBIT 3.1

STATE OF DELAWARE  SECRETARY OF STATE  DIVISION OF  CORPORATIONS  FILED 01:00 PM
08/02/1995 950174119 - 2530006 

                          CERTIFICATE OF INCORPORATION
                                       OF
                           U.S. TELNET HOLDINGS, INC.



          U.S. TELNET HOLDINGS, INC., a corporation organized and existing under
the laws of the State of Delaware, hereby certifies as follows:

         FIRST:  The name of the corporation is U.S. TELNET HOLDINGS, INC.

         SECOND:  The address of the registered  office of the corporation  (the
"Corporation")in  the State of Delaware  is 32  Loockerman  Square,  Suite L100,
Dover,  County of Kent, Delaware 19904. The name of its registered agent at such
address is The Prentice-Hall Corporation System, Inc.

          THIRD:  The purpose of the  Corporation is to engage in any lawful act
or  activity  for  which  a  corporation  may be  organized  under  the  General
Corporation Law of the State of Delaware.

         FOURTH: The total number of shares of stock which the Corporation shall
have authority to issue is Forty-Five Million  (45,000,000)  shares of stock, of
which Fifteen Million  (15,000,000)  shares shall be Preferred  Stock, par value
$.01 per share ("Preferred Stock"), and Thirty Million (30,000,000) shares shall
be Common Stock, par value $.01 per share ("Common Stock").

         No holder of stock of the Corporation  shall be entitled as such to any
preemptive  right to subscribe for,  purchase or receive (i) any shares of stock
of the Corporation at any time held in its treasury,  or (ii) unissued shares of
stock of the Corporation, whether authorized at present or hereafter authorized,
or (iii) any issue of notes,  bonds or debentures,  whether or not,  convertible
into  any  class of stock of the  Corporation,  or (iv) any  issue of  warrants,
options  or  rights  to  subscribe  for  shares  of any  class  of  stock of the
Corporation.

          The powers, designations,  preferences,  qualifications,  limitations,
and relative rights of the shares of each class are as follows:

Subdivision A. Preferred Stock.

         The  Preferred  Stock  shall be issued from time to time in one or more
series with such  distinctive  serial  designations and (a) may have such voting
powers,  full or limited,  or may be without voting powers,(b) may be subject to
redemption  at such time or times and at such  prices,  (c) may be  entitled  to
receive  dividends  (which may be cumulative or  noncumulative)  at such rate or
rates, on such conditions, and at such times and payable in preference to, or in
such relation to,




<PAGE>





the dividends  payable on any other class or classes of series of stock, (d) may
have such  rights  upon the  dissolution  of, or upon any of the  assets of, the
Corporation,  (e) may be made convertible  into, or exchangeable  for, shares of
any other class or classes or of any other series of the same or any other class
or classes of stock of the Corporation, at such price or prices or at such rates
of exchange, and with such adjustments,  and (f) shall have such other relative,
participating, optional or other special rights, qualifications,  limitations or
restrictions,  all as shall  hereafter be stated and expressed in the resolution
or resolutions providing for the issue of such Preferred Stock from time to time
adopted by the Board of Directors of the Corporation pursuant to authority to do
so which is hereby vested in the Board.

Subdivision B. Common Stock.

         1. Dividends and Liquidation. Subject to those rights expressly granted
to the holders of  Preferred  Stock,  the holders of Common Stock shall have (a)
the right to receive  dividends,  when and as declared by the Board of Directors
of the  Corporation  out of the  assets  of the  Corporation  available  for the
payment of dividends  under the laws of the State of Delaware,  and (b) upon any
liquidation (complete or partial), dissolution or winding up of the Corporation,
whether voluntary or involuntary, the right to receive ratably all assets of the
Corporation remaining after the payment to the holders of Preferred Stock of any
amount which such holders are entitled to receive in  preference  to the holders
of  Common  Stock  upon  such  liquidation,  dissolution  or  winding  up of the
Corporation, as provided in any Certificate of Designations, Powers, Preferences
and Rights of the Preferred Stock adopted by the Board of Directors, and subject
to any right the Preferred Stock may have to participate in the  distribution of
such assets as provided in any Certificate of Designations,  Powers, Preferences
and Rights of the Preferred Stock.

         2. Voting.  Each share of Common Stock shall entitle the holder thereof
to one vote, in person or by proxy, at any and all meetings of the  stockholders
of the Corporation, on all propositions before such meetings.

         FIFTH:  The name and address of the Incorporator is as follows:

         Name                           Address

         Michael B. Fischer             Rudnick & Wolfe
                                        203 N. LaSalle St., Suite 1800
                                        Chicago, Illinois 60601

         SIXTH:  The  number  of  directors  of  the  Corporation   which  shall
constitute the entire Board shall initially be sixteen (16), but such number may
be  changed  from time to time to a number  not less than five (5) nor more than
sixteen (16) by resolution adopted by a majority of the entire Board;  provided,
however, that the number of directors constituting the entire Board shall not be
decreased by the Board of Directors  below the number then in office unless such
decrease  shall become  effective at any annual meeting of  stockholders  to the
extent terms of office are then expiring. As used in this Article SIXTH, "entire
Board" means the total number of directors which the  Corporation  would have if
there were no  vacancies.  Any director or directors  may be removed from office
only for cause and only by the vote of eighty  percent(80%)  of the voting power
of all the shares of capital  stock of the  Corporation  then  entitled  to vote
generally in the election




<PAGE>





of directors,  voting  together as a single  class.  Any vacancy on the Board of
Directors  that  results for any reason,  including an increase in the number of
directors,  may be filled by the affirmative vote of a majority of the directors
then in office.

          SEVENTH:  Any of the following actions must be approved by the holders
of two-thirds of the outstanding shares of stock entitled to vote thereon:

                  (a) a plan of  merger  in which the  Corporation  merges  into
         another  corporation or in which one or more  corporations  (other than
         solvent  corporations  at least  90% of the  outstanding  share of each
         class  of  which  are  owned  by  the   Corporation)   merge  into  the
         Corporation,  or a plan of consolidation  with one or more corporations
         or a plan of mandatory share exchange with another corporation;

                  (b) a sale,  lease,  exchange or other  disposition of all, or
         substantially  all, of the Corporation's  property and assets,  with or
         without  goodwill,  if not made in the usual and regular  course of the
         Corporation's business; and

                  (c) the voluntary dissolution of the Corporation.

          EIGHTH:  The following  provisions  are inserted for management of the
business  and  conduct  of the  affairs  of the  Corporation  and to define  and
regulate the powers of the Corporation, the directors and the stockholders:

                  (a) Election of directors need not be by written ballot unless
         the by-laws so provide.

                  (b) The Board of Directors of the Corporation shall have power
         without the assent or vote of the stockholders to make,  alter,  amend,
         change,  add to or repeal the  by-laws of the  corporation;  to fix and
         vary the amount of capital  stock or cash to be reserved for any proper
         purpose; to authorize and cause to be executed mortgages and liens upon
         all or any part of the property of the  Corporation;  to determine  the
         use and disposition of any surplus or net profits; and to fix the times
         for the declaration and payment of dividends.

                  (c) The directors in their  discretion may submit any contract
         or act for  approval  or  ratification  at any  annual  meeting  of the
         stockholders  or at any  meeting  of the  stockholders  called  for the
         purpose of  considering  any such act or contract,  and any contract or
         act that shall be approved or be ratified by the vote of the holders of
         a majority  of the stock of the  Corporation  which is  represented  in
         person  or by proxy  at such  meeting  and  entitled  to vote  there at
         (provided that a lawful quorum of stockholders be there  represented in
         person  or by  proxy)  shall  be as  valid  and  as  binding  upon  the
         Corporation  and  upon  all the  stockholders  as  though  it had  been
         approved or ratified by every  stockholder of the Corporation,  whether
         or not the  contract  or act would  otherwise  be open to legal  attack
         because of directors' interest, or for any other reason.

                  (d) In addition to the powers and authorities  hereinbefore or
         by statute  expressly  conferred  upon them,  the  directors are hereby
         empowered to




<PAGE>





         exercise  all such  powers  and do all such  acts and  things as may be
         exercised or done by the  Corporation;  subject,  nevertheless,  to the
         provisions of the statutes of Delaware,  of this Certificate and to any
         by-laws from time to time made by the  stockholders;  provided however,
         that no by-laws so made shall invalidate any prior act of the directors
         which would have been valid if such by-law had not been made.

         NINTH: The Corporation shall to the full extent provided by Section 145
of the Delaware General Corporation Law, as amended from time to time, indemnify
all persons whom it may indemnify pursuant thereto.

         TENTH:  Whenever a compromise or  arrangement  is proposed  between the
Corporation  and  its  creditors  or  any  class  of  them  and/or  between  the
Corporation  and its  stockholders  or any class of them, any court of equitable
jurisdiction  within the State of Delaware may, on the  application in a summary
way of the  Corporation  or of any  creditor  or  stockholder  thereof or on the
application of any receiver or receivers appointed for the Corporation under the
provisions of Section 291 of Title 8 of the Delaware Code or on the  application
of trustees in  dissolution  or of any receiver or receivers  appointed  for the
Corporation under the Provisions of Section 279 of Title 8 of the Delaware Code,
order  a  meeting  of  the  creditors  or  class  of  creditors,  and/or  of the
stockholders or class of stockholders of the Corporation, as the case may be, to
be  summoned  in such  manner  as the court  directs.  If a  majority  in number
representing  three-fourths  in value of the  creditors  or class of  creditors,
and/or of the stockholders or class of stockholders of the  Corporation,  as the
case may be, agree to any compromise or arrangement and to any reorganization of
the  Corporation  as  consequence of such  compromise or  arrangement,  the said
compromise or arrangement  and the said  reorganization  shall, if sanctioned by
the court to which the said  application  has been  made,  be binding on all the
creditors  or class of  creditors,  and/or on all the  stockholders  or class of
stockholders,  of  the  Corporation,  as  the  case  may  be,  and  also  on the
Corporation.

         ELEVENTH: The Corporation reserves the right to amend, alter, change or
repeal any of the provisions  contained in its certificate of  incorporation  in
the manner now or hereafter  prescribed by statute,  and all rights conferred on
officers,  directors  and  stockholders  herein  are  granted  subject  to  this
reservation;  provided,  that the  affirmative  vote of the holders of record of
outstanding shares representing at least two-thirds (2/3rds) of the voting power
of all of the shares of capital stock of the  Corporation  then entitled to vote
generally, voting together as a single class, shall be required to amend, alter,
change or repeal  any  provision  of, or to adopt any  provision  or  provisions
inconsistent   with  Articles   SIXTH  and  SEVENTH  of  this   Certificate   of
Incorporation.

         TWELFTH:  No director of the Corporation  shall be personally liable to
the Corporation or its stockholders for monetary damages for breach of fiduciary
duty by such  director  as a  director;  provided,  however,  that this  Article
TWELFTH  shall not  eliminate or limit the liability of a director to the extent
provided by applicable law (i) for any breach of the director's  duty of loyalty
to the Corporation or its  stockholders,  (ii) for acts or omissions not in good
faith or which involve  intentional  misconduct  or a knowing  violation of law,
(iii) under Section 174 of the General Corporation Law of the State of Delaware,
or (iv) for any transaction from which the director derives an improper personal
benefit.  No amendment to or repeal of this  Article  TWELFTH  shall apply to or
have any effect




<PAGE>





on the liability or alleged  liability of any director of the Corporation for or
with respect to any acts or omissions of such  director and  occurring  prior to
such amendment or repeal. If the Delaware General  Corporation Law is amended to
authorize   corporate  action  further  eliminating  or  limiting  the  personal
liability of  directors,  then the  liability  of a director of the  Corporation
shall be eliminated or limited to the fullest  extent  permitted by the Delaware
General Corporation Law, as so amended.

     IN WITNESS WHEREOF, I have hereunto set my hand and seal.

DATED: August 2, 1995.

/s/  Michael B. Fischer







                                   EXHIBIT 3.2

STATE OF DELAWARE  SECRETARY OF STATE  DIVISION OF  CORPORATIONS  FILED 09:00 AM
01/29/1996 960026950 - 2530006


                            CERTIFICATE OF AMENDMENT

                                       OF

                          CERTIFICATE OF INCORPORATION

                                       OF
                           U.S. TELNET HOLDINGS, INC.

                     Pursuant to Section 241 of the General
                    Corporation Law of the State of Delaware


          THE UNDERSIGNED,  being the Chairman of the Board of Directors of U.S.
TELNET HOLDINGS, INC., A Delaware corporation, does hereby certify as follows:

          FIRST:  That the  Certificate  of  Incorporation  has been  amended by
striking  out Article  FIRST as it now exists and  inserting in lieu thereof the
following:

              FIRST:  The name of the corporation is USTN HOLDINGS, INC.

          SECOND:  That the  corporation has not received any payment for any of
its stock and that this  amendment has been duly adopted in accordance  with the
provisions  of  Section  241 of the  General  Corporation  Law of the  State  of
Delaware by resolutions of the board of directors.

          IN  WITNESS  WHEREOF,  I have  hereunto  set my hand  this 21st day of
September, 1995.


                                                     /s/ Michael B. Fischer
                                                         Assistant Secretary






                                   EXHIBIT 3.3

STATE OF DELAWARE  SECRETARY OF STATE  DIVISION OF  CORPORATIONS  FILED 09:00 AM
01/29/1996 960026950 - 2530006 

                            CERTIFICATE OF AMENDMENT
                                       OF
                          CERTIFICATE OF INCORPORATION
                                       OF
                               USTN HOLDINGS, INC.

                     Pursuant to Section 241 of the General
                    Corporation Law of the State of Delaware

         THE  UNDERSIGNED,  being the Chairman of the Board of Directors of USTN
HOLDINGS, INC., a Delaware corporation, does hereby certify as follows:

          FIRST:  That the  Certificate  of  Incorporation  has been  amended by
striking  out the  first  paragraph  of  Article  FOURTH  as it now  exists  and
inserting in lieu thereof the following:

      The total number of shares of stock which the  Corporation  shall
      have  authority to issue is Twelve  Million One Hundred  Thousand
      (12,100,000)  shares of  stock,  of which  One  Hundred  Thousand
      (100,000)  shares  shall be Preferred  Stock,  par value $.01 per
      share ("Preferred Stock"), and Twelve Million (12,000,000) shares
      shall be Common Stock, par value $.01 per share ("Common Stock").

         SECOND:  That the  corporation  has not received any payment for any of
its stock and that this  amendment has been duly adopted in accordance  with the
provisions  of  Section  241 of the  General  Corporation  Law of the  State  of
Delaware by resolutions of the board of directors.

          IN  WITNESS  WHEREOF,  I have  hereunto  set my hand  this 23rd day of
January, 1996.

                                           /s/Greg Wilkinson
                                          Greg Wilkinson, Chairman of the Board








                                   EXHIBIT 3.4


                                     BY-LAWS

                                       OF

                               USTN HOLDINGS INC.

                 (Formerly known as U.S. TELNET HOLDINGS, INC.)


                                    ARTICLE I

                                     OFFICES

     SECTION 1. REGISTERED OFFICE. The registered office of USTN HOLDINGS,  INC.
(the  "Corporation")  shall be  established  and maintained at the office of the
Prentice-Hall  Corporation Systems, Inc., in the City of Dover, in the County of
Kent, in the State of Delaware,  and said  corporation  shall be the  registered
agent of this Corporation.

     SECTION 2. OTHER OFFICES.  The Corporation  may have other offices,  either
within or without the State of Delaware, at such place or places as the Board of
Directors may from time to time appoint or the business of the  Corporation  may
require.


                                   ARTICLE II

                            MEETINGS OF STOCKHOLDERS

     SECTION  1.  ANNUAL  MEETINGS.  Annual  meetings  of  stockholders  for the
election of directors and for such other business as may be stated in the notice
of the meeting,  shall be held at such place, either within or without the State
of Delaware, and at such time and date as the Board of Directors, by resolution,
shall determine and as set forth in the notice of the meeting.  In the event the
Board of Directors  fails to so determine  the time,  date and place of meeting,
the annual meeting of stockholders  shall be held at the principal office of the
Corporation at 203 North LaSalle  Street,  Chicago,  Illinois  60601-1293 on the
first Monday in June.

     If the date of the  annual  meeting  shall fall upon a legal  holiday,  the
meeting  shall be held on the  next  succeeding  business  day.  At each  annual
meeting, the stockholders  entitled to vote shall elect a Board of Directors and
they may transact such other corporate business as shall be stated in the notice
of the meeting

     SECTION 2. OTHER MEETINGS.  Meetings of stockholders  for any purpose other
than the  election of  directors  may be held at such time and place,  within or
without the State of Delaware, as shall be stated in the notice of the meeting.




<PAGE>





     SECTION 3. VOTING. Each stockholder entitled to vote in accordance with the
terms of the Certificate of Incorporation  and in accordance with the provisions
of these By-Laws shall be entitled to one vote, in person or by proxy,  for each
share of stock entitled to vote held by such stockholder,  but no proxy shall be
voted after  eleven (11) months from its date unless such proxy  provides  for a
longer period.  Upon the demand of any  stockholder,  the vote for directors and
the vote upon any question before the meeting shall be by ballot.  All elections
for directors  shall be decided by plurality  vote; all other questions shall be
determined by majority vote except as otherwise  provided by the  Certificate of
Incorporation or the laws of the State of Delaware.

     A  complete  list of the  stockholders  entitled  to  vote at the  meeting,
arranged in  alphabetical  order,  with the  address of each,  and the number of
shares held by each,  shall be open to the examination of any  stockholder,  for
any purpose germane to the meeting, during ordinary business hours, for a period
of at least ten days  prior to the  meeting,  either at a place  within the city
where the meeting is to be held, which place shall be specified in the notice of
the meeting,  or, if not so  specified,  at the place where the meeting is to be
held.  The list  shall  also be  produced  and kept at the time and place of the
meeting during the whole time thereof,  and may be inspected by any  stockholder
who is present.

     SECTION 4.  QUORUM.  Except as  otherwise  required by these  By-Laws,  the
presence, in person or by proxy, of stockholders holding a majority of the stock
of the Corporation entitled to vote shall constitute a quorum at all meetings of
the  stockholders.  In case a quorum  shall not be  present  at any  meeting,  a
majority in interest of the  stockholders  entitled to vote thereat,  present in
person or by proxy,  shall have power to adjourn the meeting  from time to time,
without  notice  other than  announcement  at the meeting,  until the  requisite
amount of stock entitled to vote shall be present. At any such adjourned meeting
at which the requisite  amount of stock  entitled to vote shall be  represented,
any business may be transacted  which might have been  transacted at the meeting
as  originally  noticed;  but only those  stockholders  entitled  to vote at the
meeting as originally  noticed shall be entitled to vote at any  adjournment  or
adjournments thereof.

     SECTION 5. SPECIAL  MEETINGS.  Special  meetings of the stockholders may be
held whenever and wherever called for by the Chairman of the Board of Directors,
the President or the Board of Directors, or by the written demand of the holders
of no fewer than  one-third of all the shares of capital stock  entitled to vote
at the meeting.  The business which may be conducted at any such special meeting
shall be confined to the purposes  stated in the notice  thereof,  including the
election and/or removal of directors.

     SECTION 6. NOTICE OF MEETINGS.  Written notice, stating the place, date and
time of the  meeting,  and the  purpose  or  purposes  for which the  meeting is
called,  shall be given to each  stockholder  entitled  to vote  thereat  at his
address as it appears on the records of the  Corporation,  not less than ten nor
more than sixty days before the date of the meeting. No business other than that
stated in the notice shall be transacted  at any meeting  without the consent of
the majority of stockholders entitled to vote thereat.




<PAGE>





     SECTION 7.  INSPECTORS OF ELECTION.

          (a) At such time as the Corporation  becomes subject to Section 231 of
the General  Corporation  Law of the State of Delaware,  the  provisions of this
Section 7 shall become  applicable.  The  Corporation  shall,  in advance of any
meeting of  stockholders,  appoint one or more  inspectors to act at the meeting
and make a written report  thereof.  The  Corporation  may designate one or more
persons as alternate inspectors to replace any inspector who fails to act. If no
inspector or alternate is able to act at a meeting of  stockholders,  the person
presiding  at the meeting  shall  appoint one or more  inspectors  to act at the
meeting. Each inspector, before entering upon the discharge of his duties, shall
take and sign an oath  faithfully to execute the duties of inspector with strict
impartiality and according to the best of his ability.

          (b)  The   inspectors   shall  (i)  ascertain  the  number  of  shares
outstanding and the voting power of each, (ii) determine the shares  represented
at a meeting and the validity of proxies and ballots,  (iii) count all votes and
ballots,  (iv)  determine  and  retain for a  reasonable  period a record of the
disposition of any challenges made to any  determination by the inspectors,  and
(v)  certify  their  determination  of the number of shares  represented  at the
meeting, and their count of all votes and ballots. The inspectors may appoint or
retain other persons or entitles to assist the inspectors in the  performance of
the duties of the inspectors.

          (c) The date and time of the  opening and the closing of the polls for
each  matter  upon  which  the  stockholders  will  vote at a  meeting  shall be
announced  at the  meeting.  No ballot,  proxies or votes,  nor any  revocations
thereof  or changes  thereto,  shall be  accepted  by the  inspectors  after the
closing  of the  polls  unless  the  Court of  Chancery  upon  application  by a
stockholder shall determine otherwise.

          (d) In  determining  the validity and counting of proxies and ballots,
the inspectors shall be limited to an examination of the proxies,  any envelopes
submitted  with those  proxies,  any  information  provided in  accordance  with
ss.212(c)(2) of the General  Corporation  Law of the State of Delaware,  ballots
and the regular books and records of the Corporation, except that the inspectors
may consider other reliable  information  for the limited purpose of reconciling
proxies and ballots submitted by or on behalf of banks, brokers,  their nominees
or  similar  persons  which  represent  more votes than the holder of a proxy is
authorized by the record owner to cast or more votes than the stockholder  holds
of record. If the inspectors consider other reliable information for the limited
purpose  permitted   herein,   the  inspectors  at  the  time  they  make  their
certification  pursuant to subsection (b)(v) of this Section 7 shall specify the
precise information considered by them including the person or persons from whom
they obtained the information,  when the information was obtained,  the means by
which the information was obtained and the basis for the inspectors' belief that
such information is accurate and reliable.

     SECTION  8.  CONDUCT  OF  STOCKHOLDER'S   MEETINGS.  The  meetings  of  the
stockholders  shall be presided  over by the Chairman of the Board,  or if he is
not present,  by the President,  or if neither of such officers is present, by a
Vice President designated by the Board of Directors, or if none of such officers
is present,  by a chairman to be elected at the  meeting.  The  Secretary of the
Corporation,  if present,  shall act as secretary of such  meetings or, if he is
not present,  an Assistant  Secretary  designated by the chairman of the meeting
shall so




<PAGE>





act; if neither the  Secretary  nor an Assistant  Secretary  is present,  then a
secretary  shall be  appointed  by the  chairman  of the  meeting.  The order of
business shall be as determined by the chairman of the meeting.

                                   ARTICLE III

                                    DIRECTORS

     SECTION 1. GENERAL  POWERS.  The  property and business of the  Corporation
shall be managed by its Board of  Directors,  which shall possess all the powers
of the  Corporation  except as may be  otherwise  provided  by statute or by the
certificate of incorporation or by these by-laws.

     The board of directors may hold its meetings,  establish  corporate offices
and agencies, and keep the books of the Corporation at such places either within
or without the State of Delaware as it may from time to time determine.

     SECTION 2. NUMBER OF DIRECTORS.  The number of directors of the Corporation
which shall  constitute  the entire Board shall  initially be sixteen (16),  but
such number may be changed  from time to time to a number not less than five (5)
nor more than  sixteen  (16) by  resolution  adopted by a majority of the entire
Board;  provided,  however, that the number of directors constituting the entire
Board shall not be decreased by the Board of Directors  below the number then in
office  unless such  decrease  shall become  effective at any annual  meeting of
stockholders.  The  directors  shall be  elected  at the  annual  meeting of the
stockholders  and each  director  shall be elected to serve until his  successor
shall be elected and shall  qualify.  As used in these  By-laws,  "entire Board"
means the total number of directors the Corporation  would have if there were no
vacancies.

     SECTION 3.  RESIGNATIONS.  Any  director,  member of a  committee  or other
officer may resign at any time. Such resignation  shall be made in writing,  and
shall take effect at the time specified therein, and if no time be specified, at
the time of its receipt by the Chairman of the Board of Directors,  President or
Secretary.  The  acceptance of a  resignation  shall not be necessary to make it
effective.

     SECTION 4. VACANCIES. If the office of any director,  member of a committee
or other officer becomes vacant, the remaining directors in office,  though less
than a quorum by a majority vote, may appoint any qualified  person to fill such
vacancy,  who shall hold office for the  unexpired  term and until his successor
shall be duly chosen.

     SECTION  5.  REMOVAL.  Except as  hereinafter  provided,  any  director  or
directors  may be  removed  either  for or  without  cause  at any  time  by the
affirmative  vote of the  holders  of a  majority  of all the  shares  of  stock
outstanding  and  entitled  to vote,  at a special  meeting of the  stockholders
called for the  purpose and the  vacancies  thus  created may be filled,  at the
meeting held for the purpose of removal,  by the affirmative  vote of a majority
in interest of the stockholders entitled to vote.

     SECTION 6.  INCREASE OR DECREASE OF NUMBER.  The number of directors may be
increased or decreased by amendment of these By-Laws by the affirmative vote of
a majority of the directors, though less than a quorum, or, by the affirmative




<PAGE>





vote of a majority in interest of the stockholders,  at the annual meeting or at
a special meeting called for that purpose.



     SECTION 7. POWERS.  The Board of Directors shall exercise all of the powers
of the  Corporation  except  such  as  are by  law,  or by  the  Certificate  of
Incorporation of the Corporation or by these By-Laws  conferred upon or reserved
to the stockholders.

     SECTION  8.  COMMITTEES.  The Board of  Directors  may,  by  resolution  or
resolutions  passed by a  majority  of the whole  board,  designate  one or more
committees,  each  committee  to consist of one or more of the  directors of the
Corporation.  The Board may designate one or more directors as alternate members
of any  committee,  who may  replace  any absent or  disqualified  member at any
meeting of the committee.  In the absence or  disqualification  of any member of
such  committee  or  committees,  the member or members  thereof  present at any
meeting and not disqualified from voting, whether or not he or they constitute a
quorum, may unanimously  appoint another member of the Board of Directors to act
at the meeting in the place of any such absent or disqualified member.

     Any such  committee,  to the extent provided in the resolution of the Board
of Directors,  or in these  By-Laws,  shall have and may exercise all the powers
and  authority of the Board of Directors in the  management  of the business and
affairs of the Corporation,  and may authorize the seal of the Corporation to be
affixed to all papers which may require it; but no such committee shall have the
power or authority in reference to amending the  Certificate  of  Incorporation,
adopting  an  agreement  of  merger  or   consolidation,   recommending  to  the
stockholders  the sale,  lease or  exchange of all or  substantially  all of the
Corporation's   property  and  assets,   recommending  to  the   stockholders  a
dissolution of the Corporation or a revocation of a dissolution, or amending the
By-Laws of the Corporation;  and, unless the resolution,  these By-Laws,  or the
Certificate of Incorporation  expressly so provide, no such committee shall have
the power or  authority  to declare a dividend or to  authorize  the issuance of
stock.

     SECTION 9.  MEETINGS.  The newly  elected  directors  may hold their  first
meeting for the purpose of organization  and the  transaction of business,  if a
quorum be present, immediately after the annual meeting of the stockholders;  or
the time and place of such meeting may be fixed by consent in writing of all the
directors.

     Regular meetings of the directors may be held without notice at such places
and  times  as  shall  be  determined  from  time to time by  resolution  of the
directors.

     Special meetings of the board may be called by the Chairman,  the President
or by the  Secretary  on the written  request of any four  directors on at least
four  days'  prior  notice to each  director  and shall be held at such place or
places as may be determined by the directors,  or as shall be stated in the call
of the meeting.

     Unless  otherwise  restricted by the Certificate of  Incorporation or these
By-Laws, members of the Board of Directors, or any committee designated by the




<PAGE>





Board of Directors,  may participate in a meeting of the Board of Directors,  or
any  committee,  by means of  conference  telephone  or  similar  communications
equipment  by means of which all persons  participating  in the meeting can hear
each other, and such  participation  in a meeting shall  constitute  presence in
person at the meeting.




<PAGE>






     SECTION 10.  QUORUM.  A majority of the entire  Board  shall  constitute  a
quorum for the  transaction  of  business.  If at any meeting of the board there
shall be less than a quorum present, a majority of those present may adjourn the
meeting  from time to time until a quorum is  obtained,  and no  further  notice
thereof need be given other than by  announcement  at the meeting which shall be
so  adjourned.  The vote of the  majority of  directors  present at a meeting at
which a quorum is present shall be the act of the Board of Directors  unless the
Certificate of  Incorporation or these By-laws shall require a vote of a greater
number.

     SECTION 11.  COMPENSATION.  Directors shall receive such  compensation  for
their  services as  directors  or as members of  committees,  as may be fixed by
resolution  of the Board of  Directors,  including  but not  limited to a stated
salary,  fixed fee, or hourly rate and expenses of attendance  for attendance at
each meeting or  engagement or activity on behalf of this  Corporation.  Nothing
herein  contained  shall be construed to preclude any director  from serving the
Corporation  in any  other  capacity  as an  officer,  agent or  otherwise,  and
receiving compensation therefor.

     SECTION 12. ACTION WITHOUT MEETING.  Any action required or permitted to be
taken at any meeting of the Board of Directors, or of any committee thereof, may
be taken without a meeting,  if all members of the Board or of such committee as
the case may be, consent thereto in writing and the writing or writings and such
written  consent  is filed  with the  minutes  of  proceedings  of the  Board or
committee.


                                   ARTICLE IV

                                    OFFICERS

     SECTION 1. OFFICERS. The officers of the Corporation shall be a Chairman of
the Board of Directors, a President, a Treasurer,  and a Secretary,  all of whom
shall be elected by the Board of Directors and who shall hold office until their
successors  are elected and qualified.  In addition,  the Board of Directors may
elect one or more  Vice-Presidents and such Assistant  Secretaries and Assistant
Treasurers  as they  may  deem  proper.  None of the  officers  (other  than the
Chairman of the Board of  Directors)  need be directors.  The officers  shall be
elected  at the  first  meeting  of the Board of  Directors  after  each  annual
meeting,  and vacancies in any office and newly created offices may be filled by
the Board at any time. Any two or more offices may be held by the same person.

     SECTION 2. REMOVAL OF OFFICERS. Any officer may be removed,  either with or
without cause,  by the vote of a majority of the directors then in office at any
meeting of the board of directors,  but such removal shall be without  prejudice
to the contract rights, if any, of the person so removed.

     SECTION 3. OTHER  OFFICERS AND AGENTS.  The Board of Directors  may appoint
such other  officers and agents as it may deem  advisable,  who shall hold their
offices for such terms and shall exercise such powers and perform such duties as
shall be determined from time to time by the Board of Directors.




<PAGE>





     SECTION 4. CHAIRMAN OF THE BOARD OF DIRECTORS. The Chairman of the Board of
Directors  shall  preside at all meetings of directors and  stockholders  of the
Corporation and may call meetings of the Board of Directors. The Chairman of the
Board of  Directors  shall also  perform such other duties as may be assigned to
him by the Board of Directors.

     SECTION 5. PRESIDENT. The President shall be the chief executive officer of
the Corporation and shall formulate  policies with respect to the affairs of the
Corporation  and have  general  powers of  supervision  and  management.  In the
absence of the Chairman of the Board of Directors,  the President  shall preside
at meetings of the stockholders and the Board of Directors.  Except as the Board
of Directors  shall  authorize the execution  thereof in some other manner,  the
President shall be authorized to execute bonds, mortgages and other contracts on
behalf of the Corporation to cause the  Corporation's  seal to be affixed to any
instrument  requiring such seal, and when so affixed such seal shall be attested
by the signatures of the Secretary or Assistant Secretary.

     SECTION 6.  VICE-PRESIDENT.  Each Vice-President shall have such powers and
shall perform such duties as shall be assigned to him by the directors.

     SECTION 7. TREASURER. The Treasurer shall have the custody of the corporate
funds and  securities  and shall keep full and accurate  account of receipts and
disbursements in books belonging to the Corporation. He shall deposit all moneys
and other  valuables  in the name and to the credit of the  Corporation  in such
depositaries as may be designated by the Board of Directors.

     The Treasurer shall disburse the funds of the Corporation as may be ordered
by the  Board of  Directors,  the  Chairman  of the  Board of  Directors  or the
President, taking proper vouchers for such disbursements. He shall render to the
Chairman of the Board of Directors,  the President and Board of Directors at the
regular meetings of the Board of Directors,  or whenever they may request it, an
account of all his  transactions as Treasurer and of the financial  condition of
the  Corporation.  If  required  by the Board of  Directors,  he shall  give the
Corporation  a bond for the faithful  discharge of his duties in such amount and
with such surety as the board shall prescribe.

     SECTION 8.  SECRETARY.  The  Secretary  shall  give,  or cause to be given,
notice of all meetings of  stockholders  and  directors,  and all other  notices
required  by law or by these  By-Laws  and in case of his  absence or refusal or
neglect so to do, any such notice may be given by any person thereunto  directed
by the Chairman of the Board of Directors,  the President,  or by the directors,
or  stockholders,  upon whose  requisition  the meeting is called as provided in
these  By-Laws.  He shall  record all the  proceedings  of the  meetings  of the
Corporation  and of the  directors  in a book to be kept for that  purpose,  and
shall  perform such other  duties as may be assigned to him by the  directors or
the  Chairman  of the Board of  Directors  or the  President.  He shall have the
custody  of the  seal  of the  Corporation  and  shall  affix  the  same  to all
instruments  requiring  it, when  authorized by the directors or the Chairman of
the Board of Directors or the President, and attest the same.

     SECTION  9.  ASSISTANT  TREASURERS  AND  ASSISTANT  SECRETARIES.  Assistant
Treasurers  and Assistant  Secretaries,  if any, shall be elected and shall have
such  powers  and  shall  perform  such  duties  as shall be  assigned  to them,
respectively, by the directors.





<PAGE>





                                    ARTICLE V

                                  MISCELLANEOUS

     SECTION 1.  CERTIFICATES  OF STOCK. A certificate  of stock,  signed by the
Chairman of the Board of  Directors,  the President or  Vice-President,  and the
Treasurer  or an Assistant  Treasurer  or  Secretary or an Assistant  Secretary,
shall be issued to each stockholder certifying the number of shares owned by him
in the Corporation. Any of or all the signatures may be facsimiles.

     SECTION 2. LOST  CERTIFICATES.  A new certificate of stock may be issued in
the place of any certificate  theretofore issued by the Corporation,  alleged to
have been lost or destroyed, and the directors may, in their discretion, require
the owner of the lost or destroyed certificate, or his legal representatives, to
give the  Corporation  a bond,  in such sum as they may  direct,  not  exceeding
double the value of the stock,  to indemnify the  Corporation  against any claim
that  may be  made  against  it on  account  of the  alleged  loss  of any  such
certificate, or the issuance of any such new certificate.

     SECTION 3. TRANSFER OF SHARES. The shares of stock of the Corporation shall
be transferable only upon its books by the holders thereof in person or by their
duly authorized attorneys or legal  representatives,  and upon such transfer the
old certificates shall be surrendered to the Corporation by the delivery thereof
to the person in charge of the stock and transfer books and ledgers,  or to such
other person as the  directors may  designate,  by whom they shall be cancelled,
and new  certificates  shall thereupon be issued. A record shall be made of each
transfer and whenever a transfer shall be made for collateral security,  and not
absolutely, it shall be so expressed in the entry of the transfer.

     SECTION 4. RECORD DATE.  In order that the  Corporation  may  determine the
stockholders  entitled to notice of or to vote at any meeting of stockholders or
any adjournment  thereof,  or to express consent to corporate  action in writing
without a meeting,  or  entitled  to receive  payment of any  dividend  or other
distribution  or allotment of any rights,  or entitled to exercise any rights in
respect of any change, conversion or exchange of stock or for the purpose of any
other lawful action,  the Board of Directors may fix, in advance, a record date,
which  shall not be more than  sixty nor less than ten days  before  the date of
such  meeting,   nor  more  than  sixty  days  prior  to  any  other  action.  A
determination  of  stockholders  of record entitled to notice of or to vote at a
meeting of stockholders shall apply to any adjournment of the meeting; provided,
however, that the Board of Directors may fix a new record date for the adjourned
meeting.

     SECTION 5.  DIVIDENDS.  Subject to the  provisions  of the  Certificate  of
Incorporation,  the  Board of  Directors  may,  out of funds  legally  available
therefor at any regular or special meeting,  declare  dividends upon the capital
stock of the Corporation as and when they deem expedient.  Before  declaring any
dividend  there may be set apart out of any funds of the  Corporation  available
for  dividends,  such sum or sums as the  directors  from  time to time in their
discretion  deem  proper  for  working  capital  or as a  reserve  fund  to meet
contingencies  or for  equalizing  dividends  or for such other  purposes as the
directors shall deem conducive to the interests of the Corporation.




<PAGE>






     SECTION 6. SEAL.  The  corporate  seal shall be  circular in form and shall
contain  the name of the  Corporation,  the year of its  creation  and the words
"CORPORATE  SEAL  DELAWARE".  Said seal may be used by causing it or a facsimile
thereof to be impressed or affixed or reproduced or otherwise.

     SECTION 7.  FISCAL YEAR.  The fiscal year of the Corporation shall be
determined by resolution of the Board of Directors.

     SECTION 8.  CHECKS.  All checks,  drafts or other orders for the payment of
money,  notes or  other  evidences  of  indebtedness  issued  in the name of the
Corporation shall be signed by such officer or officers,  agent or agents of the
Corporation,  and in such  manner  as shall be  determined  from time to time by
resolution of the Board of Directors.

     SECTION 9. NOTICE AND WAIVER OF NOTICE.  Whenever any notice is required by
these  By-Laws to be given,  personal  notice is not meant  unless  expressly so
stated,  and any notice so required shall be deemed to be sufficient if given by
depositing the same in the United States mail, postage prepaid, addressed to the
person  entitled  thereto at his  address  as it  appears on the  records of the
Corporation,  and such  notice  shall be deemed to have been given on the day of
such mailing. Stockholders not entitled to vote shall not be entitled to receive
notice of any meetings except as otherwise provided by law.

     Whenever any notice  whatever is required to be given under the  provisions
of any law, or under the provisions of the Certificate of  Incorporation  of the
Corporation or these By-Laws, a waiver thereof in writing,  signed by the person
or persons  entitled  to said  notice,  whether  before or after the time stated
therein, shall be deemed equivalent thereto.


                                   ARTICLE VI

                                   AMENDMENTS

     These  By-Laws  may be altered or  repealed  and By-Laws may be made at any
annual meeting of the  stockholders  or at any special meeting thereof if notice
of the  proposed  alteration  or  repeal  or  By-Law  or  By-Laws  to be made be
contained in the notice of such special  meeting,  by the affirmative  vote of a
majority of the stock issued and outstanding and entitled to vote thereat, or by
the  affirmative  vote of a majority of the Board of  Directors,  at any regular
meeting of the Board of  Directors,  or at any  special  meeting of the Board of
Directors,  if notice of the proposed alteration or repeal, or By-Law or By-Laws
to be made, be contained in the notice of such special meeting.





<PAGE>






                                   ARTICLE VII

                           IDEMNIFICATION OF OFFICERS,
                         DIRECTORS, EMPLOYEES AND AGENTS

    SECTION 1. The Corporation may indemnify any person who was or is a party
or is  threatened  to be made a party to any  threatened,  pending or  completed
action,  suit  or  proceeding,   whether  civil,  criminal,   administrative  or
investigative  (other than an action by or in the right of the  Corporation)  by
reason of the fact that he is or was a director,  officer,  employee or agent of
the  Corporation or who is or was serving at the request of the Corporation as a
director,  officer, employee or agent of another Corporation partnership,  joint
venture,  trust or other  enterprise,  against  expenses  (including  attorneys'
fees),  judgments,  fines and amounts paid in settlement actually and reasonably
incurred by him in connection  with such action,  suit or proceeding if he acted
in good faith and in a manner he reasonably  believed to be in or not opposed to
the best interests of the Corporation,  and, with respect to any criminal action
or proceeding,  had no reasonable cause to believe his conduct was unlawful. The
termination of any action,  suit or proceeding by judgment,  order,  settlement,
conviction,  or upon a plea of nolo contendere or its equivalent,  shall not, of
itself,  create a presumption that the person did not act in good faith and in a
manner  which  he  reasonably  believed  to be in or not  opposed  to  the  best
interests  of the  Corporation,  and with  respect  to any  criminal  action  or
proceeding, had reasonable cause to believe that his conduct was unlawful.

     SECTION 2. The  Corporation  may indemnify any person who was or is a party
or is  threatened  to be made a party to any  threatened,  pending or  completed
action or suit by or in the right of the  Corporation  to procure a judgment  in
its favor by reason of the fact that he is or was a director,  officer, employee
or  agent  of the  Corporation,  or is or was  serving  at  the  request  of the
Corporation as a director,  officer,  employee or agent of another  Corporation,
partnership,   joint  venture,  trust  or  other  enterprise,  against  expenses
(including   attorneys'  fees)  actually  and  reasonably  incurred  by  him  in
connection  with the defense or settlement of such action or suit if he acted in
good faith and in a manner he reasonably believed to be in or not opposed to the
best interests of the  Corporation and except that no  indemnification  shall be
made in respect of any claim, issue or matter as to which such person shall have
been adjudged to be liable for  negligence or misconduct in the  performance  of
his duty to the  Corporation  unless  and only to the  extent  that the court in
which such action or suit was brought shall  determine  upon  application,  that
despite the  adjudication of liability but in view of all the  circumstances  of
the case,  such person is fairly and  reasonably  entitled to indemnity for such
expenses which the court shall deem proper.

     SECTION 3. To the extent that a director, officer, employee or agent of the
Corporation has been successful on the merits or otherwise in the defense of any
action, suit or proceeding referred to in Sections 1 and 2, or in defense of any
claim,  issue  or  matter  therein,  he shall be  indemnified  against  expenses
(including   attorneys'  fees)  actually  and  reasonably  incurred  by  him  in
connection therewith.

     SECTION 4. Any indemnification  under Sections 1 and 2 (unless ordered by a
court) shall be made by the Corporation  only as authorized in the specific case
upon a determination that indemnification of the director, officer, employee or




<PAGE>





agent is proper in the circumstances  because he has met the applicable standard
of conduct set forth in Sections 1 and 2. Such  determination  shall be made (a)
by the board of directors by a majority vote of a quorum consisting of directors
who were not parties to such action, suit or proceeding, or (b) if such a quorum
is not obtainable,  or, even if obtainable,  a quorum of disinterested directors
so directs,  by independent  legal counsel in a written  opinion,  or (c) by the
stockholders.

     SECTION 5. Expenses  (including  attorneys'  fees)  incurred in defending a
civil,  criminal,  administrative or investigative action suit or proceeding may
be paid by the  Corporation in advance of the final  disposition of such action,
suit or  proceeding  upon  receipt  of an  undertaking  by or on  behalf  of the
director or officer to repay such amount if it shall  ultimately  be  determined
that he is not entitled to be  indemnified  by the  Corporation as authorized in
this  Article.  Such  expenses  (including  attorneys'  fees)  incurred by other
employees and agents may be so paid upon such terms and  conditions,  if any, as
the board of directors deems appropriate.

     SECTION 6. The indemnification and advancement of expenses provided by this
Article  shall  not be deemed  exclusive  of any  other  rights  to which  those
indemnified may be entitled under any contract,  agreement, vote of stockholders
or  disinterested  directors  or  otherwise,  both as to action in his  official
capacity and as to action in another capacity while holding such office.

     SECTION  7. The  Corporation  shall  have power to  purchase  and  maintain
insurance on behalf of any person who is or was a director, officer, employee or
agent  of  the  Corporation,  or who is or was  serving  at the  request  of the
Corporation as a director,  officer,  employee or agent of another  Corporation,
partnership,  joint  venture,  trust or other  enterprise  against any liability
asserted against him and incurred by him in any such capacity, or arising out of
his  status as such,  whether  or not the  Corporation  would  have the power to
indemnify him against such liability under the provisions of this Article.

     SECTION 8. The  indemnification and advancement of expenses provided by, or
granted  pursuant  to,  this  Article  shall,  unless  otherwise  provided  when
authorized or ratified, continue as to a person who has ceased to be a director,
officer,  employee  or agent  and  shall  inure  to the  benefit  of the  heirs,
executors and administrators of such a person.






                                   EXHIBIT 3.5

                                STATE OF DELAWARE
                            CERTIFICATE OF AMENDMENT
                         OF CERTIFICATE OF INCORPORATION

USTN HOLDINGS, INC., a corporation organized and existing under and by virtue of
the General Corporation Law of the State of Delaware,

DOES HEREBY CERTIFY:

FIRST:  That at a meeting  of the Board of  Directors  of USTN  HOLDINGS,  INC.,
resolutions  were  duly  adopted  setting  forth  a  proposed  amendment  of the
Certificate of Incorporation of said corporation  declaring said amendment to be
advisable  and calling a meeting of the  stockholders  of said  corporation  for
consideration thereof. The resolution setting forth the proposed amendment is as
follows:

RESOLVED,  that the Certificate of  Incorporation of this corporation be amended
by changing  the Article  thereof  numbered  "FIRST" so that,  as amended,  said
article shall be and read as follows:

The name of the Corporation is ILLUMINET HOLDINGS, INC.

SECOND:  That  thereafter,  pursuant to resolution of its Board of Directors,  a
special meeting of the stockholders of said corporation was duly called and help
upon notice in accordance with Section 222 of the General Corporation Law of the
State of Delaware at which meeting the necessary number of shares as required by
statute were voted in favor of the amendment.

THIRD: That said amendment was duly adopted in accordance with the provisions of
Section 242 of the General Corporation Law of the State of Delaware.

FOURTH: That the capital of said corporation shall not be reduced under or by
reason of said amendment.

IN WITNESS  WHEREOF,  said  shareholders of USTN HOLDINGS,  INC. has caused this
certificate to be signed by Roger H. Moore, an Authorized Officer,  this 1st day
of May, 1997.

BY: /s/ Roger H. Moore
TITLE OF OFFICER: President & CEO

STATE OF DELAWARE
SECRETARY OF STATE
DIVISION OF CORPORATIONS
FILED 09:00 AM 05/09/1997
971152906-2530006



EXHIBIT 3.6

                         FIRST AMENDMENT TO THE BY-LAWS
                                       OF
                            ILLUMINET HOLDINGS, INC.



         Pursuant to the Annual Meeting of Stockholders of Illuminet Holdings,
Inc., (f/k/a U.S. Telnet Holdings, Inc. and USTN Holdings, Inc.) a Delaware
corporation (the "Corporation"), dated June 13, 1996, the By-Laws of the
Corporation are hereby amended as follows:

     1. Article III,  Section 2 of the By-Laws is hereby amended and restated in
its entirety so as to read as follows:

                  SECTION 2. NUMBER OF DIRECTORS. The number of directors of the
                  Corporation  which  shall  constitute  the entire  Board shall
                  initially  be sixteen (16) but such number may be changed from
                  time to time to a number  not less than five (5) nor more than
                  sixteen (16) by resolution adopted by a majority of the entire
                  Board;  provided,   however,  that  the  number  of  directors
                  constituting  the entire  Board shall not be  decreased by the
                  Board of Directors below the number then in office unless such
                  decrease  shall  become  effective  at any  annual  meeting of
                  stockholders,  The Board shall be divided into three  classes,
                  which are hereby  designated  Class I, Class II and Class III.
                  The term of  office of the  initial  Class I  directors  shall
                  expire at the 1997 Annual Meeting of Stockholders; that of the
                  initial  Class II  directors  at the 1998  Annual  Meeting  of
                  Stockholders;  and that of the initial  Class III directors at
                  the  1999  Annual  Meeting  of  Stockholders.  At each  annual
                  meeting  after  the  initial   classification   of  directors,
                  directors  to replace  those whose terms expire at such annual
                  meeting  shall be  elected  to hold  office  until  the  third
                  succeeding  annual meeting.  The directors shall be elected at
                  the annual meeting of the stockholders and each director shall
                  be elected to serve until his  successor  shall be elected and
                  shall qualify. As used in these By-Laws,  "entire Board" means
                  the total number of directors  the  Corporation  would have if
                  there were no vacancies.

          2. The following  shall be added to the end of Article III,  Section 5
of the By-Laws.

                  After  January  1,  1997,  directors  may  not be  elected  or
                  re-elected to the Board after  attaining the age of sixty-five
                  years old.  Directors who attain the age of  sixty-five  years
                  old during  their term will be allowed to complete  their full
                  term.





<PAGE>







         3.  Article VI of the  By-Laws is hereby  amended  and  restated in its
entirety so as to read as follows:


                                   ARTICLE VI

                                   AMENDMENTS

     These  By-Laws  may be altered or  repealed  and By-Laws may be made at any
annual meeting of the  stockholders  or at any special meeting thereof if notice
of the  proposed  alteration  or  repeal  or  By-Law  or  By-Laws  to be made be
contained in the notice of such special  meeting,  by the affirmative  vote of a
majority of the stock issued and outstanding and entitled to vote thereat, or by
the  affirmative  vote of a majority of the Board of  Directors,  at any regular
meeting of the Board of  Directors,  or at any  special  meeting of the Board of
Directors if notice of the proposed  alteration or repeal,  or By-Law or By-Laws
to be made,  be  contained  in the  notice of such  special  meeting;  provided,
however,  that the  affirmative  vote of  two-thirds  (2/3) of a majority of the
stock issued and  outstanding  and entitled to vote thereat shall be required to
amend Article III, Section 2 of these By-Laws.

IN WITNESS WHEREOF, the By-Laws are so amended as of this 13th day of June 1996.




                                                   /s/Daniel E. Weiss
                                                      Secretary







EXHIBIT 10.12
                            ILLUMINET HOLDINGS, INC.
                           1997 EQUITY INCENTIVE PLAN


                                    SECTION 1

                              PURPOSE AND DURATION

         1.1 Effective Date.  This Plan permits the grant of Nonqualified  Stock
Options,  Incentive Stock Options, SARs, Restricted Stock, Performance Units and
Performance  Shares. This Plan shall be effective on the date of its adoption by
the Company's Board of Directors.

         1.2 Purpose of this Plan.  This Plan is intended to attract,  motivate,
and retain (a) employees of the Company and its Affiliates,  (b) consultants who
provide significant services to the Company and its Affiliates,  and (c) members
of the Board of  Directors  of the  Company  who are  employees  of neither  the
Company nor any Affiliate.  This Plan also is designed to further the growth and
financial success of the Company and its Affiliates by aligning the interests of
the Participants,  through the ownership of Shares and through other incentives,
with the interests of the Company's stockholders.

                                    SECTION 2

                                   DEFINITIONS

         The  following  words and  phrases  shall have the  following  meanings
unless a different meaning is plainly required by the context:

         "1934 Act"  means the  Securities  Exchange  Act of 1934,  as  amended.
Reference to a specific  section of the 1934 Act or regulation  thereunder shall
include such section or regulation,  any valid regulation promulgated under such
section,  and any comparable  provision of any future  legislation or regulation
amending, supplementing or superseding such section or regulation.

         "Affiliate" means any corporation or any other entity  (including,  but
not limited to, partnerships and joint ventures)  controlling,  controlled by or
under common control with the Company.

         "Affiliated  SAR"  means an SAR that is granted  in  connection  with a
related  Option,  and that  automatically  will be deemed to be exercised at the
same time that the related Option is exercised.



                                       -1-

<PAGE>



         "Award" means, individually or collectively, a grant under this Plan of
Nonqualified  Stock Options,  Incentive Stock Options,  SARs,  Restricted Stock,
Performance Units or Performance Shares.

         "Award  Agreement" means the written  agreement setting forth the terms
and provisions applicable to each Award granted under this Plan.

         "Board" or "Board of  Directors"  means the Board of  Directors  of the
Company.

         "Board  Member"  means any  individual  who is a member of the Board of
Directors of the Company.

         "Change in  Control"  shall have the  meaning  assigned to such term in
Section 12.2.

         "Code" means the Internal  Revenue Code of 1986, as amended.  Reference
to a specific  section of the Code or regulation  thereunder  shall include such
section or regulation,  any valid regulation promulgated under such section, and
any  comparable  provision of any future  legislation  or  regulation  amending,
supplementing or superseding such section or regulation.

         "Committee"  means the  committee  appointed by the Board  (pursuant to
Section 3.1) to administer this Plan.

         "Company" means Illuminet Holdings,  Inc., a Delaware corporation,  and
any successor thereto. With respect to the definitions of the Performance Goals,
the  Committee  in its  sole  discretion  may  determine  that  "Company"  means
Illuminet Holdings, Inc., and its consolidated subsidiaries.

         "Consultant"  means any  consultant,  independent  contractor  or other
person who provides significant  services to the Company or its Affiliates,  but
who is neither an Employee nor a Board Member.

         "Disability"  means a permanent and total disability within the meaning
of Code  section  22(e)(3),  provided  that in the  case of  Awards  other  than
Incentive  Stock  Options,  the Committee in its sole  discretion  may determine
whether a permanent and total  disability  exists in accordance with uniform and
non-discriminatory standards adopted by the Committee from time to time.

         "Earnings  Per Share" means as to any Fiscal Year,  the  Company's  Net
Income or a business unit's Pro Forma Net Income,  divided by a weighted average
number of Shares outstanding and dilutive equivalent Shares deemed outstanding.

         "Employee"  means  any  employee  of the  Company  or of an  Affiliate,
whether such employee is so employed at the time this Plan is adopted or becomes
so employed subsequent to the adoption of this Plan.


                                       -2-

<PAGE>



         "ERISA" means the Employee  Retirement  Income Security Act of 1974, as
amended. Reference to a specific section of ERISA or regulation thereunder shall
include such section or regulation,  any valid regulation promulgated under such
section,  and any comparable  provision of any future  legislation or regulation
amending, supplementing or superseding such section or regulation.

         "Exercise Price" means the price at which a Share may be purchased by a
Participant pursuant to the exercise of an Option.

         "Fair Market Value" means,  as of any given date,  the mean between the
highest  and lowest  reported  sales  prices of the Shares on the New York Stock
Exchange  Composite  Tape or,  if not  listed  on such  exchange,  on any  other
national  securities  exchange  on which the  Shares are listed or on the Nasdaq
Stock Market. If there is no regular public trading market for such Shares,  the
Fair Market Value of the Shares  shall be  determined  by the  Committee in good
faith.  Notwithstanding the preceding,  for federal,  state and local income tax
reporting  purposes,  fair market value shall be determined by the Committee (or
its delegate) in accordance with uniform and nondiscriminatory standards adopted
by it from time to time.

         "Fiscal Year" means the fiscal year of the Company.

         "Freestanding  SAR"  means a SAR that is granted  independently  of any
Option.

         "Grant Date" means,  with respect to an Award,  the date that the Award
was granted.

         "Incentive  Stock Option"  means an Option to purchase  Shares which is
designated as an Incentive Stock Option and is intended to meet the requirements
of section 422 of the Code.

         "Individual  MBOs"  means  as  to  a  Participant,  the  objective  and
measurable goals set by a "management by objectives" process and approved by the
Committee (in its sole discretion).

         "Net Income" means as to any Fiscal Year, the income after taxes of the
Company for the Fiscal Year  determined in accordance  with  generally  accepted
accounting  principles;  provided,  however,  that the Committee shall determine
whether  any  significant  item(s)  shall  be  included  or  excluded  from  the
calculation of Net Income with respect to one or more  Participants  and, if the
Committee intends an Award to qualify as "performance-based  compensation" under
Section 162(m) of the Code, the Committee shall make such determination prior to
the latest date permissible under Section 162(m) of the Code.

         "Nonemployee  Board Member" means a Board Member who is not an employee
of the Company or of any Affiliate.

         "Nonqualified Stock Option" means an Option to purchase Shares which is
not an Incentive Stock Option.


                                       -3-

<PAGE>



         "Option" means an Incentive Stock Option or a Nonqualified Stock Option

         "Participant" means an Employee, Consultant or Nonemployee Board Member
who has an outstanding Award.

         "Performance  Goals" means the goal(s) (or combined goal(s)) determined
by the Committee (in its sole discretion) to be applicable to a Participant with
respect to an Award.  As  determined by the  Committee,  the  Performance  Goals
applicable to an Award may provide for a targeted level or levels of achievement
using predetermined  measurements,  including,  for example,  one or more of the
following measures: (a) Earnings Per Share, (b) Individual MBOs, (c) Net Income,
(d) Pro  Forma Net  Income,  (e)  Return on  Designated  Assets,  (f)  Return on
Revenues,  and (g)  Satisfaction  MBOs.  The  Performance  Goals may differ from
Participant to Participant and from Award to Award.

         "Performance  Period"  shall have the meaning  assigned to such term in
Section 8.3.

         "Performance Share" means an Award granted to a Participant pursuant to
Section 8.

         "Performance Unit" means an Award granted to a Participant  pursuant to
Section 8.

         "Period of  Restriction"  means the period during which the transfer of
Shares of  Restricted  Stock are subject to  restrictions  and,  therefore,  the
Shares are subject to a substantial  risk of forfeiture.  As provided in Section
7, such  restrictions  may be based on the passage of time,  the  achievement of
target levels of  performance or the occurrence of other events as determined by
the Committee in its sole discretion.

         "Plan" means the Illuminet Holdings,  Inc., 1997 Equity Incentive Plan,
as set forth in this instrument and as hereafter amended from time to time.

          "Pro Forma Net Income"  means as to any  business  unit for any Fiscal
Year,  the portion of  Company's  Net Income  allocable to such  business  unit;
provided,  however,  that the Committee  shall determine the basis on which such
allocation shall be made.

         "Restricted Stock" means an Award granted to a Participant  pursuant to
Section 7.

         "Retirement"  means,  in the  case of an  Employee,  a  Termination  of
Service  by reason  of the  Employee's  retirement  pursuant  to any  retirement
program  instituted  by the Company or any  Affiliate  employer or as  otherwise
agreed to by the Employer or the applicable Affiliate employer.  With respect to
a  Consultant,  no  Termination  of Service  shall be deemed to be on account of
"Retirement".  With respect to a Nonemployee  Board Member,  "Retirement"  means
termination of service on the Board at or after age sixty-five (65).



                                       -4-

<PAGE>



          "Return on Designated Assets" means as to any Fiscal Year, (a) the Pro
Forma Net Income of a business  unit,  divided by the average of  beginning  and
ending  business unit designated  assets,  or (b) the Net Income of the Company,
divided by the average of beginning and ending designated corporate assets.

         "Return on Revenues" means as to any Fiscal Year, the percentage  equal
to the Company's Net Income or the business unit's Pro Forma Net Income, divided
by the Company's or the business unit's annual revenue.

         "Rule 16b-3" means Rule 16b-3  promulgated  under the 1934 Act, and any
future regulation amending, supplementing or superseding such regulation.

          "Satisfaction  MBOs" means as to any  Participant,  the  objective and
measurable  individual  goals set by a "management  by  objectives"  process and
approved by the Committee, which goals relate to the satisfaction of external or
internal requirements.

         "Section 16 Person" means a person who, with respect to the Shares,  is
subject to section 16 of the 1934 Act.

         "Shares" means the shares of common stock of the Company.

         "Stock Appreciation Right" or "SAR" means an Award, granted alone or in
connection  with a related  Option,  that is  designated  as a SAR  pursuant  to
Section 6.

         "Subsidiary" means any corporation in an unbroken chain of corporations
beginning  with the  Company  if each of the  corporations  other  than the last
corporation in the unbroken chain then owns stock possessing fifty percent (50%)
or more of the total combined voting power of all classes of stock in one of the
other corporations in such chain.

         "Tandem SAR" means an SAR that is granted in connection  with a related
Option,  the exercise of which shall require forfeiture of the right to purchase
an equal  number  of  Shares  under  the  related  Option  (and  when a Share is
purchased under the Option, the SAR shall be canceled to the same extent).

         "Termination  of  Service"  means  (a) in the  case of an  Employee,  a
cessation  of the  employee-employer  relationship  between an employee  and the
Company  or an  Affiliate  for any  reason,  including,  but not  limited  to, a
cessation  by  resignation,  discharge,  death,  Disability,  Retirement  or the
disaffiliation of an Affiliate,  but excluding any such cessation where there is
a simultaneous  reemployment by the Company or an Affiliate, and (b) in the case
of a Board Member or Consultant, a cessation of the service relationship between
a Board Member or  Consultant  and the Company or an  Affiliate  for any reason,
including,  but not limited to, a cessation by  resignation,  discharge,  death,
Disability, (Retirement, with respect to a Board


                                       -5-

<PAGE>



Member) or the disaffiliation of an Affiliate,  but excluding any such cessation
where there is a simultaneous  reengagement of the Board Member or Consultant by
the Company or an Affiliate.



                                       -6-

<PAGE>



                                    SECTION 3

                                 ADMINISTRATION

         3.1 The Committee.  This Plan shall be  administered  by the Committee.
The Committee shall consist of not less than two (2) Board Members,  all of whom
are Nonemployee  Board Members.  The members of the Committee shall be appointed
from  time to time  by,  and  shall  serve  at the  pleasure  of,  the  Board of
Directors.

         3.2 Authority of the  Committee.  It shall be the duty of the Committee
to administer this Plan in accordance  with its provisions.  The Committee shall
have all powers and discretion  necessary or appropriate to administer this Plan
and to control its  operation,  including,  but not limited to, the power to (a)
determine which  Participants  shall be granted Awards,  (b) prescribe the terms
and conditions of the Awards,  (c) interpret this Plan and the Awards, (d) adopt
rules for the administration, interpretation and application of this Plan as are
consistent therewith, and (e) interpret, amend or revoke any such rules.

         3.3 Delegation by the Committee.  The Committee, in its sole discretion
and on such terms and conditions as it may provide, may delegate all or any part
of its  authority  and powers  under  this Plan to one or more Board  Members or
officers of the Company; provided,  however, that the Committee may not delegate
its  authority  and  powers  in any  way  which  would  jeopardize  this  Plan's
qualification under Rule 16b-3.

         3.4 Decisions  Binding.  All  determinations  and decisions made by the
Committee,  the Board and any delegate of the Committee  pursuant to Section 3.3
shall be final,  conclusive,  and binding on all persons, and shall be given the
maximum deference permitted by law.

                                    SECTION 4

                           SHARES SUBJECT TO THIS PLAN

         4.1 Number of Shares. Subject to adjustment as provided in Section 4.3,
the total number of Shares  available for grant under this Plan shall not exceed
1,000,000.  Shares granted under this Plan may be either authorized but unissued
Shares or treasury Shares, or any combination thereof.

         4.2 Lapsed  Awards.  If an Award is settled  in cash,  or is  canceled,
terminates,  expires  or  lapses  for any  reason  (with  the  exception  of the
termination  of a  Tandem  SAR  upon  exercise  of the  related  Option,  or the
termination of a related Option upon exercise of the corresponding  Tandem SAR),
any Shares subject to such Award thereafter shall be available to be the subject
of an Award.



                                       -7-

<PAGE>



         4.3  Adjustments in Awards and Authorized  Shares.  In the event of any
merger,    reorganization,    consolidation,    recapitalization,    separation,
liquidation,  stock dividend, stock split, Share combination, or other change in
the corporate structure of the Company affecting the Shares, the Committee shall
adjust the number and class of Shares  which may be  delivered  under this Plan,
the number,  class and price of Shares  subject to outstanding  Awards,  and the
numerical  limits of Sections  4.1, 5.1, 6.1, 7.1 and 8.1, in such manner as the
Committee  (in  its  sole  discretion)   shall  determine  to  be  advisable  or
appropriate   to  prevent  the   dilution   or   diminution   of  such   Awards.
Notwithstanding the preceding,  the number of Shares subject to any Award always
shall be a whole number.

         4.4  Repurchase  Option.  The  Committee  may, in its sole  discretion,
include in the terms of any Award  Agreement,  that the  Company  shall have the
option to repurchase  Shares of any Participant  acquired  pursuant to any Award
granted under the Plan upon the Termination of Service of such  Participant upon
such terms as the Committee shall state in the Award.

         4.5 Buy-Out Provision. The Committee may at any time offer on behalf of
the  Company to buy out,  for a payment in cash or Shares,  an Award  previously
granted,  based on such  terms  and  conditions  as the  Committee,  in its sole
discretion, shall establish and communicate to the Participants at the time such
offer is made.

          4.6  Restrictions on Share  Transferability.  The Committee may impose
such restrictions on any Shares acquired pursuant to the exercise of an Award as
it may deem advisable or appropriate in its sole discretion,  including, but not
limited to,  restrictions  related to applicable  Federal  securities  laws, the
requirements of any national securities exchange or system upon which Shares are
then listed or traded, and any blue sky or state securities laws.

                                    SECTION 5

                                  STOCK OPTIONS

         5.1 Grant of Options. Subject to the terms and provisions of this Plan,
Options  may be  granted  to  Participants  at any time and from time to time as
determined by the Committee in its sole discretion.  The Committee,  in its sole
discretion,  shall  determine  the  number of  Shares  subject  to each  Option;
provided,  however, that during any Fiscal Year, no Participant shall be granted
Options  covering more than 100,000  Shares.  The Committee may grant  Incentive
Stock Options, Nonqualified Stock Options, or any combination thereof.

         5.2  Award  Agreement.  Each  Option  shall  be  evidenced  by an Award
Agreement  that shall specify the Exercise  Price,  the  expiration  date of the
Option,  the number of Shares to which the Option  pertains,  any  conditions to
exercise of the Option and such other terms and conditions as the Committee,  in
its sole  discretion,  shall  determine.  The Award Agreement also shall specify
whether the Option is intended to be an Incentive Stock Option or a Nonqualified
Stock Option.



                                       -8-

<PAGE>



         5.3 Exercise Price.  Subject to the provisions of this Section 5.3, the
Exercise  Price for each Option shall be determined by the Committee in its sole
discretion.

                  5.3.1   Nonqualified   Stock   Options.   In  the  case  of  a
         Nonqualified Stock Option, the Exercise Price may be less than the Fair
         Market Value of a Share on the Grant Date.

                  5.3.2  Incentive  Stock  Options.  In the case of an Incentive
         Stock  Option,  the  Exercise  Price shall be not less than one hundred
         percent  (100%) of the Fair Market  Value of a Share on the Grant Date;
         provided,  however,  that if on the Grant Date, the Employee  (together
         with  persons  whose stock  ownership  is  attributed  to the  Employee
         pursuant to section 424(d) of the Code) owns stock possessing more than
         10% of the total  combined  voting power of all classes of stock of the
         Company or any of its  Subsidiaries,  the  Exercise  Price shall be not
         less than one hundred ten percent  (110%) of the Fair Market Value of a
         Share on the Grant Date.

                  5.3.3 Substitute  Options.  Notwithstanding  the provisions of
         Sections 5.3.1 and 5.3.2, in the event that the Company or an Affiliate
         consummates  a  transaction  described  in  section  424(a) of the Code
         (e.g.,   the  acquisition  of  property  or  stock  from  an  unrelated
         corporation),  persons  who  become  Participants  on  account  of such
         transaction may be granted Options in substitution  for options granted
         by such former  employer or recipient of services.  If such  substitute
         Options  are  granted,  the  Committee,  in  its  sole  discretion  and
         consistent  with section  424(a) of the Code,  may determine  that such
         substitute  Options shall have an exercise  price less than one hundred
         (100%) of the Fair Market Value of the Shares on the Grant Date.

                  5.4       Expiration of Options.

                  5.4.1  Expiration  Dates.  Except as  provided  in Section 5.7
         regarding Incentive Stock Options, each Option shall terminate upon the
         earlier of the first to occur of the following events:

                           (a) The  date(s)  for  termination  of the Option set
                  forth in the Award Agreement; or

                           (b) The  expiration  of ten (10) years from the Grant
                  Date.

                  5.4.2 Committee  Discretion.  Subject to the limits of Section
         5.4.1, the Committee, in its sole discretion, (a) shall provide in each
         Award Agreement when each Option expires and becomes unexercisable, and
         (b) may,  after an Option is granted,  extend the  maximum  term of the
         Option (subject to Section 5.7 regarding Incentive Stock Options).

         5.5 Exercisability of Options. Options granted under this Plan shall be
exercisable at such times and be subject to such  restrictions and conditions as
the Committee shall determine in


                                       -9-

<PAGE>



its sole  discretion.  After an Option is granted,  the  Committee,  in its sole
discretion,  may accelerate the  exercisability  of the Option. If the Committee
provides that any Option is exercisable only in installments,  the Committee may
at any time waive such  installment  exercise  provisions,  in whole or in part,
based on such factors as the Committee may determine.

         5.6 Payment.  Options shall be exercised by the Participant's  delivery
of a  written  notice  of  exercise  to the  Secretary  of the  Company  (or its
designee),  setting  forth the number of Shares with respect to which the Option
is to be exercised, accompanied by full payment for the Shares.

         Upon the exercise of any Option, the Exercise Price shall be payable to
the  Company  in full in cash or its  equivalent.  The  Committee,  in its  sole
discretion, also may permit exercise (a) by tendering previously acquired Shares
having an aggregate Fair Market Value at the time of exercise equal to the total
Exercise  Price,  or (b) by any other  means  which the  Committee,  in its sole
discretion,  determines (i) to provide legal  consideration for the Shares,  and
(ii) to be consistent with the purposes of this Plan.

         As soon as  practicable  after  receipt  of a written  notification  of
exercise and full payment for the Shares purchased, the Company shall deliver to
the Participant (or the Participant's  designated  broker),  Share  certificates
(which may be in book entry form) representing such Shares.

         5.7      Certain Additional Provisions for Incentive Stock Options.

                  5.7.1   Exercisability.   The  aggregate   Fair  Market  Value
         (determined  on the Grant  Date(s)) of the Shares with respect to which
         Incentive  Stock  Options  are  exercisable  for the first  time by any
         Employee  during any calendar  year (under all plans of the Company and
         its Subsidiaries) shall not exceed $100,000.

                  5.7.2 Termination of Service. No Incentive Stock Option may be
         exercised   more  than  three  (3)  months   after  the   Participant's
         Termination  of Service for any reason other than  Disability or death,
         unless (a) the Participant dies during such three-month period, and (b)
         the  Award  Agreement  or the  Committee  permits  later  exercise.  No
         Incentive  Stock Option may be  exercised  more than one (1) year after
         the  Participant's  termination of employment on account of Disability,
         unless (a) the Participant  dies during such one-year  period,  and (b)
         the Award Agreement or the Committee permits later exercise.

                  5.7.3 Company and Subsidiaries  Only.  Incentive Stock Options
         may be granted  only to persons who are  employees  of the Company or a
         Subsidiary on the Grant Date.

                  5.7.4  Expiration.  No Incentive Stock Option may be exercised
         after the  expiration of ten (10) years from the Grant Date;  provided,
         however,  that if the Option is granted to an  Employee  who,  together
         with persons whose stock ownership is attributed to the


                                      -10-

<PAGE>



         Employee  pursuant to section 424(d) of the Code, owns stock possessing
         more than 10% of the total  combined  voting  power of all  classes  of
         stock of the Company or any of its Subsidiaries,  the Option may not be
         exercised after the expiration of five (5) years from the Grant Date.

                                    SECTION 6

                            STOCK APPRECIATION RIGHTS

         6.1 Grant of SARs. Subject to the terms and conditions of this Plan, an
SAR may be granted to Participants at any time and from time to time as shall be
determined by the  Committee,  in its sole  discretion.  The Committee may grant
Affiliated SARs, Freestanding SARs, Tandem SARs, or any combination thereof.

                  6.1.1  Number of Shares.  The  Committee  shall have  complete
         discretion to determine the number of SARs granted to any  Participant,
         provided that during any Fiscal Year, no  Participant  shall be granted
         SARs covering more than 100,000 Shares.

                  6.1.2 Exercise Price and Other Terms.  The Committee,  subject
         to the  provisions  of this Plan,  shall have  complete  discretion  to
         determine  the terms and  conditions  of SARs granted  under this Plan;
         provided,  however, that the exercise price of a Freestanding SAR shall
         be not less than one hundred percent (100%) of the Fair Market Value of
         a Share on the Grant Date.  The exercise  price of Tandem or Affiliated
         SARs shall equal the Exercise Price of the related Option.

         6.2  Exercise of Tandem SARs.  Tandem SARs may be exercised  for all or
part of the Shares subject to the related Option upon the surrender of the right
to exercise the equivalent  portion of the related  Option.  A Tandem SAR may be
exercised  only with respect to the Shares for which its related  Option is then
exercisable.  With  respect  to a  Tandem  SAR  granted  in  connection  with an
Incentive  Stock  Option:  (a) the  Tandem  SAR shall  expire no later  than the
expiration of the underlying Incentive Stock Option; (b) the value of the payout
with  respect to the Tandem  SAR shall be for no more than one  hundred  percent
(100%) of the difference between the Exercise Price of the underlying  Incentive
Stock Option and the Fair Market Value of the Shares  subject to the  underlying
Incentive  Stock  Option at the time the  Tandem SAR is  exercised;  and (c) the
Tandem SAR shall be  exercisable  only when the Fair Market  Value of the Shares
subject  to the  Incentive  Stock  Option  exceeds  the  Exercise  Price  of the
Incentive Stock Option.

         6.3 Exercise of Affiliated  SARs. An Affiliated  SAR shall be deemed to
be exercised upon the exercise of the related Option.  The deemed exercise of an
Affiliated SAR shall not necessitate a reduction in the number of Shares subject
to the related Option.

         6.4  Exercise  of  Freestanding   SARs.   Freestanding  SARs  shall  be
exercisable  on  such  terms  and  conditions  as the  Committee,  in  its  sole
discretion, shall determine.


                                      -11-

<PAGE>



         6.5 SAR  Agreement.  Each  SAR  grant  shall be  evidenced  by an Award
Agreement  that shall  specify  the  exercise  price,  the term of the SAR,  the
conditions of exercise, and such other terms and conditions as the Committee, in
its sole discretion, shall determine.

         6.6  Expiration  of SARs.  An SAR granted  under this Plan shall expire
upon the date determined by the Committee, in its sole discretion,  as set forth
in the Award Agreement.  Notwithstanding the foregoing, the terms and provisions
of Section 5.4 also shall apply to SARs.

         6.7 Payment of SAR Amount. Upon exercise of an SAR, a Participant shall
be  entitled to receive  payment  from the  Company in an amount  determined  by
multiplying:

                  (a) The positive difference between the Fair Market Value of a
         Share on the date of exercise over the exercise price; by

                  (b) The  number of  Shares  with  respect  to which the SAR is
         exercised.

         At the sole discretion of the Committee,  the payment upon SAR exercise
may be in cash, in Shares of equivalent value, or in any combination thereof.

                                    SECTION 7

                                RESTRICTED STOCK

         7.1 Grant of Restricted  Stock.  Subject to the terms and provisions of
this Plan, the Committee, at any time and from time to time, may grant Shares of
Restricted  Stock to Participants in such amounts as the Committee,  in its sole
discretion,  shall  determine.  The  Committee,  in its sole  discretion,  shall
determine  the  number of Shares to be granted  to each  Participant;  provided,
however,  that during any Fiscal Year,  no  Participant  shall receive more than
100,000 Shares of Restricted Stock.

         7.2 Restricted Stock Agreement. Each Award of Restricted Stock shall be
evidenced by an Award  Agreement  that shall specify the Period of  Restriction,
the  number of Shares  granted,  and such  other  terms  and  conditions  as the
Committee, in its sole discretion, shall determine. Unless the Committee, in its
sole discretion,  determines otherwise, Shares of Restricted Stock shall be held
by the  Company  as  escrow  agent  until  the end of the  applicable  Period of
Restriction.

         7.3  Transferability.  Except as otherwise determined by the Committee,
in its sole discretion, Shares of Restricted Stock may not be sold, transferred,
gifted,  bequeathed,  pledged, assigned, or otherwise alienated or hypothecated,
voluntarily  or  involuntarily,  until  the  end of  the  applicable  Period  of
Restriction.



                                      -12-

<PAGE>



         7.4 Other  Restrictions.  The Committee,  in its sole  discretion,  may
impose  such other  restrictions  on Shares of  Restricted  Stock as it may deem
advisable or appropriate in accordance with this Section 7.4.

                  7.4.1 General Restrictions. The Committee may set restrictions
         based  upon (a) the  achievement  of  specific  performance  objectives
         (Company-wide,  divisional or  individual),  (b) applicable  Federal or
         state  securities  laws,  or (c)  any  other  basis  determined  by the
         Committee in its sole discretion.

                  7.4.2 Section 162(m) Performance Restrictions. For purposes of
         qualifying   grants   of   Restricted   Stock   as   "performance-based
         compensation"  under section 162(m) of the Code, the Committee,  in its
         sole  discretion,  may set  restrictions  based upon the achievement of
         Performance  Goals. The Performance Goals shall be set by the Committee
         on or before the latest date permissible to enable the Restricted Stock
         to qualify as "performance-based  compensation" under section 162(m) of
         the Code.  In  granting  Restricted  Stock that is  intended to qualify
         under Code section  162(m),  the Committee  shall follow any procedures
         determined  by it in its  sole  discretion  from  time  to  time  to be
         necessary,  advisable or  appropriate  to ensure  qualification  of the
         Restricted  Stock under Code section 162(m) (e.g.,  in determining  the
         Performance Goals).

                  7.4.3  Legend  on  Certificates.  The  Committee,  in its sole
         discretion,  may legend the certificates  representing Restricted Stock
         to give  appropriate  notice of such  restrictions.  For  example,  the
         Committee  may  determine  that some or all  certificates  representing
         Shares of Restricted Stock shall bear the following legend:

                  "THE SALE OR OTHER TRANSFER OF THE SHARES OF STOCK REPRESENTED
                  BY THIS CERTIFICATE,  WHETHER  VOLUNTARY,  INVOLUNTARY,  OR BY
                  OPERATION  OF LAW,  IS  SUBJECT  TO  CERTAIN  RESTRICTIONS  ON
                  TRANSFER AS SET FORTH IN THE ILLUMINET  HOLDINGS,  INC.,  1997
                  EQUITY INCENTIVE PLAN, AND IN A RESTRICTED STOCK AGREEMENT.  A
                  COPY OF THIS PLAN AND SUCH  RESTRICTED  STOCK AGREEMENT MAY BE
                  OBTAINED FROM THE SECRETARY OF ILLUMINET HOLDINGS, INC."

         7.5  Removal of  Restrictions.  Except as  otherwise  provided  in this
Section 7, Shares of  Restricted  Stock covered by each  Restricted  Stock grant
made under this Plan shall be released from escrow as soon as practicable  after
the end of the applicable  Period of  Restriction.  The  Committee,  in its sole
discretion,  may accelerate the time at which any  restrictions  shall lapse and
remove any restrictions.  After the end of the applicable Period of Restriction,
the  Participant  shall be entitled to have any legend or legends  under Section
7.4.3 removed from his or her Share certificate,  and the Shares shall be freely
transferable by the Participant.



                                      -13-

<PAGE>



         7.6  Voting  Rights.  During the  Period of  Restriction,  Participants
holding  Shares of Restricted  Stock granted  hereunder may exercise full voting
rights with  respect to those  Shares,  unless the  applicable  Award  Agreement
provides otherwise.

         7.7   Dividends   and  Other   Distributions.   During  the  Period  of
Restriction,  Participants  holding Shares of Restricted Stock shall be entitled
to receive  all  dividends  and other  distributions  paid with  respect to such
Shares unless otherwise provided in the applicable Award Agreement.  If any such
dividends or  distributions  are paid in Shares,  the Shares shall be subject to
the same  restrictions on  transferability  and  forfeitability as the Shares of
Restricted Stock with respect to which they were paid.

         7.8 Return of Restricted Stock to Company. On the date set forth in the
applicable Award Agreement, the Restricted Stock for which restrictions have not
lapsed shall revert to the Company and  thereafter  shall be available for grant
under this Plan.

                                    SECTION 8

                    PERFORMANCE UNITS AND PERFORMANCE SHARES

         8.1  Grant  of   Performance   Units/Shares.   Performance   Units  and
Performance  Shares may be granted to  Participants at any time and from time to
time, as shall be  determined  by the  Committee,  in its sole  discretion.  The
Committee   shall  have  complete   discretion  in  determining  the  number  of
Performance Units and Performance Shares granted to each Participant;  provided,
however,  that  during  any  Fiscal  Year,  (a)  no  Participant  shall  receive
Performance  Units having an initial  value  greater than  $250,000,  and (b) no
Participant shall receive more than 100,000 Performance Shares.

         8.2 Value of Performance Units/Shares. Each Performance Unit shall have
an initial  value that is  established  by the  Committee on or before the Grant
Date.  Each  Performance  Share  shall have an initial  value  equal to the Fair
Market Value of a Share on the Grant Date.

         8.3  Performance  Objectives and Other Terms.  The Committee  shall set
performance  objectives in its sole discretion which, depending on the extent to
which they are met, will determine the number or value of  Performance  Units or
Performance Shares, or both, that will be paid out to the Participants. The time
period during which the  performance  objectives must be met shall be called the
"Performance  Period".  Each Award of Performance  Units or  Performance  Shares
shall be  evidenced by an Award  Agreement  that shall  specify the  Performance
Period,  and such  other  terms and  conditions  as the  Committee,  in its sole
discretion, shall determine.

                  8.3.1 General  Performance  Objectives.  The Committee may set
         performance  objectives based upon (a) the achievement of Company-wide,
         divisional or individual


                                      -14-

<PAGE>



         goals,  (b)  applicable  Federal or state  securities  laws, or (c) any
         other basis determined by the Committee in its discretion.

                  8.3.2 Section 162(m) Performance  Objectives.  For purposes of
         qualifying  grants  of  Performance  Units  or  Performance  Shares  as
         "performance-based  compensation" under section 162(m) of the Code, the
         Committee,  in its sole discretion,  may determine that the performance
         objectives  applicable to Performance  Units or Performance  Shares, as
         the case may be,  shall be  based  on the  achievement  of  Performance
         Goals. The Performance Goals shall be set by the Committee on or before
         the  latest  date  permissible  to  enable  the  Performance  Units  or
         Performance   Shares,   as   the   case   may   be,   to   qualify   as
         "performance-based  compensation"  under section 162(m) of the Code. In
         granting  Performance Units or Performance Shares which are intended to
         qualify  under Code  section  162(m),  the  Committee  shall follow any
         procedures  determined  by it from  time to  time  to be  necessary  or
         appropriate  in its sole  discretion  to  ensure  qualification  of the
         Performance Units or Performance Shares, as the case may be, under Code
         section 162(m) (e.g., in determining the Performance Goals).

         8.4  Earning  of   Performance   Units/Shares.   After  the  applicable
Performance  Period has ended,  the holder of  Performance  Units or Performance
Shares shall be entitled to receive a payout of the number of Performance  Units
or Performance  Shares,  as the case may be, earned by the Participant  over the
Performance  Period,  to be  determined as a function of the extent to which the
corresponding  performance  objectives have been achieved.  After the grant of a
Performance Unit or Performance  Share,  the Committee,  in its sole discretion,
may reduce or waive any  performance  objectives  for such  Performance  Unit or
Performance Share.

         8.5 Form and Timing of Payment of Performance Units/Shares.  Payment of
earned  Performance  Units  or  Performance  Shares  shall  be  made  as soon as
practicable after the end of the applicable  Performance  Period. The Committee,
in its sole discretion,  may pay earned  Performance Units or Performance Shares
in the form of cash, in Shares (which have an aggregate  Fair Market Value equal
to the value of the earned Performance Units or Performance  Shares, as the case
may be, at the end of the applicable  Performance Period), or in any combination
thereof.

         8.6  Cancellation  of Performance  Units/Shares.  On the earlier of the
date set  forth in the  Award  Agreement  or the  Participant's  Termination  of
Service  (other  than by death,  Disability  or,  with  respect to an  Employee,
Retirement),  all unearned or unvested  Performance Units or Performance  Shares
shall be forfeited to the Company,  and thereafter  shall be available for grant
under this Plan.  In the event of a  Participant's  death,  Disability  or, with
respect to an Employee,  Retirement,  prior to the end of a Performance  Period,
the Committee  shall reduce his or her Performance  Units or Performance  Shares
proportionately based on the date of such Termination of Service.





                                      -15-

<PAGE>

                                    SECTION 9

                                  MISCELLANEOUS

         9.1 Deferrals.  The  Committee,  in its sole  discretion,  may permit a
Participant  to defer  receipt of the payment of cash or the  delivery of Shares
that  would  otherwise  be due to such  Participant  under  an  Award.  Any such
deferral  election  shall be subject to such  rules and  procedures  as shall be
determined by the Committee in its sole discretion.

         9.2 No Effect on  Employment  or  Service.  Nothing  in this Plan shall
interfere  with or limit in any way the right of the  Company to  terminate  any
Participant's  employment  or service at any time,  with or without  cause.  For
purposes  of this Plan,  transfer of  employment  of a  Participant  between the
Company and any of its Affiliates (or between  Affiliates) shall not be deemed a
Termination of Service.  Employment or secure  relationship with the Company and
its  Affiliates is on an at-will  basis only,  unless  otherwise  provided by an
applicable  employment  or service  agreement  between the  Participant  and the
Company or its Affiliate, as the case may be.

         9.3  Participation.  No Participant shall have the right to be selected
to receive an Award under this Plan, or, having been so selected, to be selected
to receive a future Award.

         9.4 Indemnification.  Each person who is or shall have been a member of
the Committee,  or of the Board,  shall be indemnified  and held harmless by the
Company  against and from (a) any loss,  cost,  liability or expense  (including
attorneys'  fees) that may be imposed upon or reasonably  incurred by him or her
in connection  with or resulting from any claim,  action,  suit or proceeding to
which he or she may be a party or in which he or she may be  involved  by reason
of any action  taken or  failure to act under this Plan or any Award  Agreement,
and (b) from any and all amounts paid by him or her in settlement thereof,  with
the Company's prior written  approval,  or paid by him or her in satisfaction of
any judgment in any such claim,  action,  suit or proceeding against him or her;
provided,  however, that he or she shall give the Company an opportunity, at its
own expense, to handle and defend the same before he or she undertakes to handle
and defend it on his or her own behalf.  The foregoing right of  indemnification
shall not be  exclusive  of any other  rights of  indemnification  to which such
persons may be entitled  under the Company's  Certificate  of  Incorporation  or
Bylaws,  by contract,  as a matter of law or otherwise,  or under any power that
the Company may have to indemnify them or hold them harmless.

         9.5  Successors.  All  obligations of the Company under this Plan, with
respect to Awards  granted  hereunder,  shall be binding on any successor to the
Company,  whether the  existence of such  successor is the result of a direct or
indirect purchase,  merger,  consolidation or otherwise, of all or substantially
all of the business or assets of the Company.

         9.6  Beneficiary  Designations.   If  permitted  by  the  Committee,  a
Participant  under this Plan may name a beneficiary or beneficiaries to whom any
vested but unpaid Award shall be paid in the event of the  Participant's  death.
Each such designation shall revoke all prior designations by the Participant and
shall be effective only if given in a form and manner acceptable to the


                                      -16-

<PAGE>



Committee. In the absence of any such designation, any vested benefits remaining
unpaid at the Participant's death shall be paid to the Participant's estate and,
subject to the terms of this Plan and of the  applicable  Award  Agreement,  any
unexercised  vested Award may be exercised by the  administrator  or executor of
the Participant's estate.

         9.7  Transferability  of Awards.  Except as provided  otherwise  in the
Award  Agreement,  Awards  granted  under  this  Plan may be sold,  transferred,
pledged, assigned, or otherwise alienated or hypothecated.

         9.8 No Rights as Stockholder.  Except to the limited extent provided in
Sections 7.6 and 7.7, no Participant  (nor any  beneficiary  thereof) shall have
any of the rights or privileges of a stockholder  of the Company with respect to
any Shares issuable pursuant to an Award (or the exercise  thereof),  unless and
until certificates  representing such Shares shall have been issued, recorded on
the records of the Company or its transfer  agents or registrars,  and delivered
to the Participant (or his or her beneficiary).

                                   SECTION 10

                      AMENDMENT, TERMINATION, AND DURATION

         10.1  Amendment,  Suspension,  or  Termination.  The Board, in its sole
discretion,  may amend or terminate this Plan, or any part thereof,  at any time
and for any reason; provided, however, that if and to the extent required by law
or to maintain  this Plan's  qualification  under Rule 16b-3,  the Code,  or the
rules of any national  securities  exchange (if applicable),  any such amendment
shall  be  subject  to  stockholder  approval.  The  amendment,   suspension  or
termination  of this Plan shall not,  without  the  consent of the  Participant,
alter or impair any rights or obligations under any Award theretofore granted to
such  Participant.  No Award may be granted  during any period of  suspension or
after termination of this Plan.

         10.2  Duration of this Plan.  This Plan shall  become  effective on the
date specified herein,  and subject to Section 10.1 (regarding the Board's right
to amend or terminate this Plan), shall remain in effect  thereafter;  provided,
however,  that without further stockholder  approval,  no Incentive Stock Option
may be granted under this Plan after the tenth anniversary of the effective date
of this Plan.

                                   SECTION 11

                                 TAX WITHHOLDING

         11.1 Withholding  Requirements.  Prior to the delivery of any Shares or
cash pursuant to an Award (or the exercise thereof),  the Company shall have the
power  and  the  right  to  deduct  or  withhold  from  any  amounts  due to the
Participant from the Company,  or require a Participant to remit to the Company,
an amount sufficient to satisfy Federal, state and local taxes (including


                                      -17-

<PAGE>



the Participant's FICA obligation)  required to be withheld with respect to such
Award (or the exercise thereof).

         11.2 Withholding  Arrangements.  The Committee,  in its sole discretion
and pursuant to such  procedures as it may specify from time to time, may permit
a Participant to satisfy such tax withholding  obligation,  in whole or in part,
by (a) electing to have the Company withhold  otherwise  deliverable  Shares, or
(b) delivering to the Company Shares then owned by the Participant having a Fair
Market  Value  equal to the amount  required to be  withheld.  The amount of the
withholding requirement shall be deemed to include any amount that the Committee
agrees may be withheld at the time any such election is made,  not to exceed the
amount  determined by using the maximum federal,  state or local marginal income
tax rates  applicable to the  Participant  with respect to the Award on the date
that the amount of tax to be withheld is to be determined. The Fair Market Value
of the Shares to be withheld or  delivered  shall be  determined  as of the date
that the taxes are required to be withheld.

                                   SECTION 12

                                CHANGE IN CONTROL

         12.1  Change in  Control.  In the event of a Change in  Control  of the
Company,  all Awards granted under this Plan that then are  outstanding  and not
then  exercisable  or are  subject  to  restrictions,  shall,  unless  otherwise
provided for in the Award  Agreements  applicable  thereto,  become  immediately
exercisable,  and all restrictions  shall be removed,  as of the first date that
the Change in Control has been deemed to have occurred, and shall remain as such
for the remaining life of the Award as provided herein and within the provisions
of the related Award Agreements.  Notwithstanding the preceding sentence, in the
event that the Committee is advised by the Company's  independent  auditors that
the effect of the  preceding  sentence  would be to preclude  the ability of the
Company to account  for an  acquisition  or merger  transaction  as a pooling of
interests,  the Committee may declare the preceding sentence to be inoperable to
such  extent  as  the  Committee,  in  its  sole  discretion,  deems  advisable.
Notwithstanding  the  preceding  sentence,  in the event that the  Committee  is
advised by the Company's  independent  auditors that the effect of the preceding
sentence  would be to  preclude  the  ability of the  Company  to account  for a
transaction  as a pooling of interests,  the Committee may declare the preceding
sentence  to be  inoperable  to  such  extent  as the  Committee,  in  its  sole
discretion, deems advisable.

         12.2  Definition.  For  purposes  of Section  12.1  above,  a Change in
Control of the Company  shall be deemed to have occurred if the  conditions  set
forth in any one or more of the following shall have been satisfied, unless such
condition  shall  have  received  prior  approval  of a  majority  vote  of  the
Continuing Directors,  as defined below,  indicating that Section 12.1 shall not
apply thereto:

         (a) any "person",  as such term is used in Sections  13(d) and 14(d) of
         the 1934 Act (other than the  Company,  any trustee or other  fiduciary
         holding securities under an employee benefit plan of the Company or any
         corporation owned, directly or indirectly,


                                      -18-

<PAGE>



         by  the  stockholders  of  the  Company  in   substantially   the  same
         proportions as their ownership of stock of the Company),  is or becomes
         the "beneficial  owner" (as defined in Rule 13(d)(3) under the Exchange
         Act), directly or indirectly, of securities of the Company representing
         thirty  percent  (30%)  or more of the  combined  voting  power  of the
         Company's then outstanding securities;

         (b) during  any period of two  consecutive  years  (not  including  any
         period  prior  to  the  Effective  Date  of  this  Plan),   individuals
         ("Existing  Directors") who at the beginning of such period  constitute
         the  Board  of  Directors,  and  any new  board  member  (an  "Approved
         Director")  (other than a board member  designated  by a person who has
         entered  into an  agreement  with the  Company to effect a  transaction
         described  in paragraph  (a),  (b) or (c) of this  Section  12.2) whose
         election by the Board of  Directors or  nomination  for election by the
         Company's  shareholders  was  approved by a vote of a least  two-thirds
         (2/3) of the board  members  then still in office who either were board
         members at the beginning of the period or whose  election or nomination
         for election  previously was so approved  (Existing  Directors together
         with Approved Directors constituting "Continuing Directors"), cease for
         any reason to constitute at least a majority of the Board of Directors;
         or

         (c) the  stockholders of the Company approve a merger or  consolidation
         of the  Company  with any  other  person,  other  than (i) a merger  or
         consolidation  which  would  result  in the  voting  securities  of the
         Company  outstanding  immediately prior thereto continuing to represent
         (either by  remaining  outstanding  or by being  converted  into voting
         securities  for the surviving  entity) more than fifty percent (50%) of
         the combined  voting power of the voting  securities  of the Company or
         such  surviving  entity  outstanding  immediately  after such merger or
         consolidation,  or (ii) a merger in which no  "person"  (as  defined in
         Section  12.2(a))  acquires  more  than  thirty  percent  (30%)  of the
         combined voting power of the Company's then outstanding securities; or

         (d)  the  stockholders  of  the  Company  approve  a plan  of  complete
         liquidation  of the Company or an agreement for the sale or disposition
         by the Company of all or substantially  all of the Company's assets (or
         any transaction having a similar effect).

                                   SECTION 13

                               LEGAL CONSTRUCTION

         13.1  Gender  and  Number.  Except  where  otherwise  indicated  by the
context,  any masculine  term used herein also shall  include the feminine,  the
plural shall include the singular, and the singular shall include the plural.

         13.2  Severability.  In the event any  provision  of this Plan shall be
held illegal or invalid for any reason,  the illegality or invalidity  shall not
affect the  remaining  parts of this Plan,  and this Plan shall be construed and
enforced as if the illegal or invalid provision had not been included.



                                      -19-

<PAGE>


         13.3  Requirements  of Law.  The grant of Awards  and the  issuance  of
Shares  under  this Plan  shall be subject  to all  applicable  laws,  rules and
regulations,  and to such  approvals  by any  governmental  agencies or national
securities exchanges as may be required from time to time.

         13.4  Securities  Law  Compliance.  With respect to Section 16 Persons,
Awards under this Plan are intended to comply with all applicable  conditions of
Rule 16b-3. To the extent any provision of this Plan,  Award Agreement or action
by the  Committee  fails to so comply,  it shall be deemed null and void, to the
extent  permitted by law and deemed advisable or appropriate by the Committee in
its sole discretion.

         13.5  Governing  Law.  This  Plan  and all  Award  Agreements  shall be
construed in  accordance  with and governed by the laws of the State of Delaware
(excluding its conflict of laws provisions).

         13.6  Captions.   Captions  are  provided  herein  for  convenience  of
reference  only,  and  shall  not  serve  as  a  basis  for   interpretation  or
construction of this Plan.


                                                    Adopted October 29, 1997


                                      -20-

<PAGE>



                                                              EXHIBIT 10.13

 

                            ILLUMINET HOLDINGS, INC.
                           1997 EQUITY INCENTIVE PLAN
                   NON-QUALIFIED STOCK OPTION AWARD AGREEMENT


         This Stock Option Award  Agreement (the "Award  Agreement"),  made this
____ day of ____________, 19__ evidences the grant, by Illuminet Holdings, Inc.,
(the "Company"),  of a stock option to _____________ (the "Grantee") on the date
hereof (the "Date of Grant").  By accepting the Award and  executing  this Award
Agreement,  the Grantee agrees to be bound by the  provisions  hereof and of the
Illuminet  Holdings,  Inc. 1997 Equity Incentive Plan (the "Plan").  Capitalized
terms not defined herein shall have the same meaning as used in the Plan.

         1. Shares  Optioned and Option Price.  The Grantee shall have an option
to purchase  _________  shares of the Company's  Common Stock,  $ par value (the
"Shares"),  at an  exercise  price of  $_______  for each share (the  "Option"),
subject to the terms and conditions of this Award Agreement and of the Plan, the
provisions of which are  incorporated  herein by this  reference.  The Option is
not, nor is it intended to be, an Incentive Stock Option as described in section
422 of the Internal Revenue Code of 1986.

         2. Exercise  Period.  The Option may be  exercised,  from time to time,
with respect to the following number of Shares subject to this Option: (i) prior
to the first  anniversary of the Date of Grant,  none of such Shares;  (ii) from
and after the first anniversary of the Date of Grant, 25% of such Shares;  (iii)
from and after the second  anniversary of the Date of Grant,  50% of such Shares
(less any Shares as to which this Option shall have been exercised prior to such
second  anniversary);  (iv) from and after the third  anniversary of the date of
Grant,  75% of such Shares  (less any Shares as to which this Option  shall have
been  exercised  prior to such  third  anniversary);  and (v) from and after the
fourth anniversary of the Date of Grant, 100% of such Shares (less any Shares as
to  which  this  Option  shall  have  been   exercised   prior  to  such  fourth
anniversary). Provided, however, that the Grantee's right to exercise the Option
shall terminate on the earliest to occur of the following dates:

         a.       the tenth anniversary of the Date of Grant;

         b.       the first anniversary of the date of the Grantee's Termination
                  of Service on account of Disability or death;

         c.       the  date  sixty  days  following  the  date of the  Grantee's
                  Termination of Service for any reason other than Disability or
                  death (the "Termination Date"); provided,  however, that until
                  there is a regular public  trading  market for the Shares,  as
                  determined  by the  Committee,  in its  sole  discretion,  the
                  Termination Date shall be the date one year following the date
                  of the Grantee's  Termination  of Service for any reason other
                  than Disability or death.



                                       -1-

<PAGE>



Provided  further  that,  during the sixty day period  following the date of the
Grantee's  Termination of Service for any reason other than Disability or death,
that portion of the Shares that was not exercisable on the date of the Grantee's
Termination of Service shall not become exercisable.

         3.  Restriction  on Exercise  After  Termination.  Notwithstanding  the
foregoing  provisions  of  paragraph  2 or any  other  provision  of this  Award
Agreement,  the  Committee,  in its sole  discretion,  may  reduce the number of
Shares  subject to the Option or may  cancel the Option in its  entirety  if the
Grantee (a) takes other  employment  or renders  services to others  without the
written consent of the Company;  or (b) conducts  himself or herself in a manner
that the Committee, in its sole discretion,  deems has adversely affected or may
adversely  affect  the  Company.  The  Grantee  will  not  be  entitled  to  any
remuneration or compensation  whatsoever for the loss of all or a portion of the
Grantee's  Option if the number of Shares  subject to the  Grantee's  Option are
reduced,  or if the Grantee's  Option is canceled in its  entirety,  pursuant to
this paragraph.

         4. Exercise. To the extent that the Option is exercisable hereunder, it
may be  exercised  in full or in part by the  Grantee  or,  in the  event of the
Grantee's  death, by the person or persons to whom the Option was transferred by
will or the laws of descent and  distribution,  by delivering or mailing written
notice of the exercise and full payment of the purchase  price to the  Secretary
of the Company.  The written  notice shall be signed by each person  entitled to
exercise the Option and shall specify the address and social  security number of
each  person.  If any person  other than the Grantee  purports to be entitled to
exercise  all  or any  portion  of the  Option,  the  written  notice  shall  be
accompanied  by proof,  satisfactory  to the  Secretary of the Company,  of that
entitlement.  The written  notice shall be  accompanied  by full payment in cash
(including  personal check), in Shares represented by certificates  transferring
ownership  to the Company and with an  aggregate  Fair Market Value equal to the
purchase price on the date the written  notice is received by the Secretary,  or
in any combination of cash and Shares,  provided that payment in full or part by
the  transfer of Shares shall be subject to approval by the  Committee.  Payment
may also be made in such  other  manner as may be  permitted  by the Plan at the
time of exercise,  subject to approval by the Committee. The written notice will
be effective and the Option shall be deemed exercised to the extent specified in
the  notice  on the  date  that  the  written  notice  (together  with  required
accompaniments)  is  received  by the  Secretary  of  the  Company  at its  then
executive offices during regular business hours.

         5. Issue of Shares Upon Exercise.  As soon as practicable after receipt
of an  effective  written  notice of exercise  and full  payment of the purchase
price as provided  in  paragraph  4, the  Secretary  of the Company  shall cause
ownership of the appropriate number of Shares to be transferred to the person or
persons  exercising the Option by having a certificate or certificates for those
Shares  registered  in the name of such  person or  persons  and shall have each
certificate delivered to the appropriate person.  Notwithstanding the foregoing,
if the Company or a Subsidiary requires reimbursement of any tax required by law
to be withheld with respect to Shares  received upon exercise of an Option,  the
Secretary  shall not  transfer  ownership  of those  Shares  until the  required
payment is made.


                                       -2-

<PAGE>




         6.  Transferability  of Options.  The rights under this Award Agreement
may not be  transferred  except  pursuant  to a "domestic  relations  order," as
defined in the Code or Title I of ERISA,  or by will or the laws of descent  and
distribution.  The rights under this Award Agreement may be exercised during the
lifetime  of  the  Grantee  only  by  the  Grantee  or  permitted   transferees.
[ALTERNATIVE  PROVISION (waiting for SEC interpretation of Rule 701 and Form S-8
which do not  contemplate  transfer of  options):  The Grantee may  transfer the
Option to (i) the spouse,  children, or grandchildren of the Grantee ("Immediate
Family  Members"),  (ii) a trust or trusts for the  exclusive  benefits  of such
Immediate Family Members,  or (iii) a partnership in which such Immediate Family
Members are the only partners,  provided that (y) there may be no  consideration
for any such  transfer  and (z)  subsequent  transfers  of the  Option  shall be
prohibited,  except by will or the laws of descent and  distribution.  Following
transfer,  the  Option  shall  continue  to be  subject  to the same  terms  and
conditions as were applicable  immediately prior to transfer,  provided that for
the purposes of the Award Agreement, the term "Grantee" shall be deemed to refer
to the  transferee.  The event of a Termination  of Service shall continue to be
applied with respect to the original  Grantee,  following which the Option shall
be  exercisable  by the  transferee  only to the  extent,  and for the  periods,
specified in Paragraph 2. Neither the  Committee  nor the Company shall have any
obligation to provide  notice to a transferee of termination of the Option under
the terms of this Award Agreement.]

                  6.01  Transferees  of  Stockholders.  The Company shall not be
required  to  transfer  any  Shares on its books  which  shall  have been  sold,
assigned or otherwise  transferred in violation of this Award  Agreement,  or to
treat as owner of such  shares of stock,  or to accord the right to vote as such
owner or to pay  dividends  to,  any  person or  organization  to which any such
Shares shall have been sold, assigned or otherwise  transferred,  from and after
any sale,  assignment  or transfer of any Share made in  violation of this Award
Agreement.  Any transfer in violation of the terms of this Award Agreement shall
be deemed null and void.

         7.  Authorized  Leave.  For purposes  hereof,  an  authorized  leave of
absence  (authorized  by the Company or a Subsidiary  to the Grantee in writing)
shall not be deemed a Termination of Service hereunder.

         8. Taxes. The Grantee will be solely responsible for any Federal, state
or local income taxes imposed in  connection  with the exercise of the Option or
the delivery of Shares incident thereto,  and the Grantee authorizes the Company
or any  Subsidiary  to make any  withholding  for taxes which the Company  deems
necessary or proper in connection therewith, from any amounts due to the Grantee
by the Company.  Subject to approval by the  Committee,  the Grantee may satisfy
such withholding  obligations,  in whole or in part, by (a) electing to have the
Company withhold  otherwise  deliverable Shares or (b) delivering to the Company
Shares  then owned by Grantee  having a Fair  Market  Value  equal to the amount
required to be withheld.



                                       -3-

<PAGE>



         9. Risk of Investment.  It is expressly  understood and agreed that the
Grantee  assumes all risks  incident to any change  hereafter in the  applicable
laws or  regulations or incident to any change in the market value of the Shares
after the exercise of this Option in whole or in part.  The Grantee has received
and read a copy of the Plan and made a detailed  inquiry  concerning the Company
and its business,  and the Grantee is aware of the limited market  available for
resale of the Shares. The Grantee agrees that the Shares acquired on exercise of
this Option shall be acquired for his or her own account for investment only and
not with a view to, or for resale in connection with, any distribution or public
offering  thereof  within  the  meaning  of  the  Securities  Act of  1933  (the
"Securities Act") or other applicable securities laws. If the Board of Directors
or Committee so determines,  any stock certificates issued upon exercise of this
Option  shall bear a legend to the effect that the Shares have been so acquired.
The Company  may,  but in no event shall be  required  to, bear any  expenses of
complying with the Securities Act, other applicable securities laws or the rules
and  regulations  of  any  national  securities  exchange  or  other  regulatory
authority in connection with the registration,  qualification,  or transfer,  as
the case  may be,  of this  Option  or any  Shares  acquired  upon the  exercise
thereof.  The  foregoing  restrictions  on the  transfer of the Shares  shall be
inoperative  if (a) the Company  previously  shall have been  furnished  with an
opinion of counsel,  satisfactory  to it, to the effect that such  transfer will
not involve any violation of the Securities Act and other applicable  securities
laws or (b) the Shares shall have been duly  registered in  compliance  with the
Securities Act and other  applicable  state or federal  securities laws. If this
Option,  or the  Shares  subject to this  Option,  are so  registered  under the
Securities  Act,  the  Grantee  agrees  that he or she  will  not  make a public
offering of the said Shares  except on a national  securities  exchange on which
the stock of the Company is then listed.

         10.      Transferability of Shares; Company Repurchase Option.

                  10.01 No Transfer.  Except as otherwise  provided herein,  and
until such time as (i) there shall be a regular  public  trading  market for the
Shares;  or (ii) the Board shall approve a transaction in which all shareholders
are expressly  granted the right to transfer  their shares,  the Grantee may not
sell, pledge, give, assign, distribute,  hypothecate,  mortgage or transfer (all
hereinafter  referred to as  "transfer")  any Shares  acquired  pursuant to this
Award  Agreement;  provided,  however,  that the  Grantee  may  transfer  Shares
acquired pursuant to this Award Agreement if the Committee specifically consents
thereto in writing prior to the consummation of the transfer.

                  10.02 Repurchase  Option. The Company shall have the exclusive
option to purchase all, but not less than all, of the Shares acquired by Grantee
pursuant to this Award Agreement at a purchase price per Share equal to the Fair
Market Value on the date of such Termination of Service (the "Purchase Option").
The Purchase Option shall be exercisable  for a thirty day period  following the
later of (i) the date on which the Grantee  acquires the Shares  pursuant to the
Award Agreement; or (ii) the date of the Grantee's Termination of Service.

                  10.03 Payment.  If the Company elects to exercise the Purchase
Option,  the Company  shall give notice of its  intention to purchase the Shares
and deliver payment for such


                                       -4-

<PAGE>


Shares  within  fifteen  days after the date of such  notice.  At the  Company's
option,  the Company may designate  another  person or entity to purchase any of
the Shares on its behalf, on the terms provided herein.

                  10.04 No Disclosure  Obligation.  The Grantee acknowledges and
agrees that neither the Company nor any of its  shareholders,  board members and
officers,  has any duty or  obligation  to disclose to the Grantee any  material
information  regarding the business of the Company or affecting the value of the
Shares before or at the time of a Grantee's  Termination of Service,  including,
without limitation,  any information  concerning plans for the Company to make a
public  offering of its  securities  or to be acquired by or merged with or into
another firm or entity.

         11.  No  Conflict.  In the  event  of a  conflict  between  this  Award
Agreement and the Plan, the provisions of the Plan shall govern.

         12.  Governing  Law. This Award shall be governed under the laws of the
State of Delaware.

                                        ILLUMINET HOLDINGS, INC.


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



ACKNOWLEDGMENT

         The  undersigned  Grantee  acknowledges  that he or she understands and
agrees to be bound by each of the terms and conditions of this Award Agreement.


- -----------------------------------        ------------------------------------
           Printed Name                                 Signature







                                                [Form adopted October 29, 1997]


                                       -5-

<PAGE>

                                                            EXHIBIT 10.14

                            ILLUMINET HOLDINGS, INC.
                           1997 EQUITY INCENTIVE PLAN
                      DIRECTOR STOCK OPTION AWARD AGREEMENT


         This Stock Option Award  Agreement (the "Award  Agreement"),  made this
____ day of ____________, 19__ evidences the grant, by Illuminet Holdings, Inc.,
(the "Company"),  of a stock option to _____________ (the "Grantee") on the date
hereof (the "Date of Grant").  By accepting the Award and  executing  this Award
Agreement,  the Grantee agrees to be bound by the  provisions  hereof and of the
Illuminet  Holdings,  Inc. 1997 Equity Incentive Plan (the "Plan").  Capitalized
terms not defined herein shall have the same meaning as used in the Plan.

         1. Shares  Optioned and Option Price.  The Grantee shall have an option
to purchase  _________  shares of the Company's  Common Stock,  $ par value (the
"Shares"),  at an  exercise  price of  $_______  for each share (the  "Option"),
subject to the terms and conditions of this Award Agreement and of the Plan, the
provisions of which are  incorporated  herein by this  reference.  The Option is
not, nor is it intended to be, an Incentive Stock Option as described in section
422 of the Internal Revenue Code of 1986.

         2. Exercise  Period.  The Option may be  exercised,  from time to time,
with respect to any or all of the Shares subject to this Option at any time from
and after the Date of Grant.  Provided,  however,  that the  Grantee's  right to
exercise  the Option shall  terminate on the earliest to occur of the  following
dates:

         (a)      the tenth anniversary of the Date of Grant; or

         (b)      the first anniversary of the date of the Grantee's death;
death;

         3.  Restriction  on Exercise  After  Termination.  Notwithstanding  the
foregoing  provisions  of  paragraph  2 or any  other  provision  of this  Award
Agreement,  the  Committee,  in its sole  discretion,  may  reduce the number of
Shares  subject to the Option or may  cancel the Option in its  entirety  if the
Grantee (a) takes other  employment  or renders  services to others  without the
written consent of the Company;  or (b) conducts  himself or herself in a manner
that the Committee, in its sole discretion,  deems has adversely affected or may
adversely  affect  the  Company.  The  Grantee  will  not  be  entitled  to  any
remuneration or compensation  whatsoever for the loss of all or a portion of the
Grantee's  Option if the number of Shares  subject to the  Grantee's  Option are
reduced,  or if the Grantee's  Option is canceled in its  entirety,  pursuant to
this paragraph.

         4. Exercise. To the extent that the Option is exercisable hereunder, it
may be  exercised  in full or in part by the  Grantee  or,  in the  event of the
Grantee's  death, by the person or persons to whom the Option was transferred by
will or the laws of descent and distribution,


                                       -1-

<PAGE>



by delivering or mailing  written notice of the exercise and full payment of the
purchase  price to the  Secretary  of the Company.  The written  notice shall be
signed by each  person  entitled to  exercise  the Option and shall  specify the
address and social security number of each person.  If any person other than the
Grantee  purports to be  entitled to exercise  all or any portion of the Option,
the written notice shall be accompanied by proof,  satisfactory to the Secretary
of the Company, of that entitlement.  The written notice shall be accompanied by
full  payment in cash  (including  personal  check),  in Shares  represented  by
certificates  transferring  ownership to the Company and with an aggregate  Fair
Market  Value  equal to the  purchase  price on the date the  written  notice is
received by the Secretary,  or in any  combination of cash and Shares,  provided
that  payment  in full or part by the  transfer  of Shares  shall be  subject to
approval by the Committee.  Payment may also be made in such other manner as may
be  permitted  by the Plan at the time of  exercise,  subject to approval by the
Committee.  The written  notice will be effective and the Option shall be deemed
exercised  to the extent  specified  in the notice on the date that the  written
notice (together with required  accompaniments)  is received by the Secretary of
the Company at its then executive offices during regular business hours.

         5. Issue of Shares Upon Exercise.  As soon as practicable after receipt
of an  effective  written  notice of exercise  and full  payment of the purchase
price as provided  in  paragraph  3, the  Secretary  of the Company  shall cause
ownership of the appropriate number of Shares to be transferred to the person or
persons  exercising the Option by having a certificate or certificates for those
Shares  registered  in the name of such  person or  persons  and shall have each
certificate delivered to the appropriate person.  Notwithstanding the foregoing,
if the Company or a Subsidiary requires reimbursement of any tax required by law
to be withheld with respect to Shares  received upon exercise of an Option,  the
Secretary  shall not  transfer  ownership  of those  Shares  until the  required
payment is made.

         6.  Transferability  of Options.  The rights under this Award Agreement
may not be  transferred  except  pursuant  to a "domestic  relations  order," as
defined in the Code or Title I of ERISA,  or by will or the laws of descent  and
distribution.  The rights under this Award Agreement may be exercised during the
lifetime  of  the  Grantee  only  by  the  Grantee  or  permitted   transferees.
[ALTERNATIVE  PROVISION (waiting for SEC interpretation of Rule 701 and Form S-8
which do not  contemplate  transfer of  options):  The Grantee may  transfer the
Option to (i) the spouse,  children, or grandchildren of the Grantee ("Immediate
Family  Members"),  (ii) a trust or trusts for the  exclusive  benefits  of such
Immediate Family Members,  or (iii) a partnership in which such Immediate Family
Members are the only partners,  provided that (y) there may be no  consideration
for any such  transfer  and (z)  subsequent  transfers  of the  Option  shall be
prohibited,  except by will or the laws of descent and  distribution.  Following
transfer,  the  Option  shall  continue  to be  subject  to the same  terms  and
conditions as were applicable  immediately prior to transfer,  provided that for
the purposes of the Award Agreement, the term "Grantee" shall be deemed to refer
to the  transferee.  Neither  the  Committee  nor the  Company  shall  have  any
obligation to provide  notice to a transferee of termination of the Option under
the terms of this Award Agreement.]


                                       -2-

<PAGE>




                  6.01  Transferees  of  Stockholders.  The Company shall not be
required  to  transfer  any  Shares on its books  which  shall  have been  sold,
assigned or otherwise  transferred in violation of this Award  Agreement,  or to
treat as owner of such  shares of stock,  or to accord the right to vote as such
owner or to pay  dividends  to,  any  person or  organization  to which any such
Shares shall have been sold, assigned or otherwise  transferred,  from and after
any sale,  assignment  or transfer of any Share made in  violation of this Award
Agreement.  Any transfer in violation of the terms of this Award Agreement shall
be deemed null and void.

         7. Taxes. The Grantee will be solely responsible for any Federal, state
or local income taxes imposed in  connection  with the exercise of the Option or
the delivery of Shares incident thereto,  and the Grantee authorizes the Company
or any  Subsidiary  to make any  withholding  for taxes which the Company  deems
necessary or proper in connection therewith, from any amounts due to the Grantee
by the Company.  Subject to approval by the  Committee,  the Grantee may satisfy
such withholding  obligations,  in whole or in part, by (a) electing to have the
Company withhold  otherwise  deliverable Shares or (b) delivering to the Company
Shares  then owned by Grantee  having a Fair  Market  Value  equal to the amount
required to be withheld.

         8. Risk of Investment.  It is expressly  understood and agreed that the
Grantee  assumes all risks  incident to any change  hereafter in the  applicable
laws or  regulations or incident to any change in the market value of the Shares
after the exercise of this Option in whole or in part.  The Grantee has received
and read a copy of the Plan and made a detailed  inquiry  concerning the Company
and its business,  and the Grantee is aware of the limited market  available for
resale of the Shares. The Grantee agrees that the Shares acquired on exercise of
this Option shall be acquired for his or her own account for investment only and
not with a view to, or for resale in connection with, any distribution or public
offering  thereof  within  the  meaning  of  the  Securities  Act of  1933  (the
"Securities Act") or other applicable securities laws. If the Board of Directors
or Committee so determines,  any stock certificates issued upon exercise of this
Option  shall bear a legend to the effect that the Shares have been so acquired.
The Company  may,  but in no event shall be  required  to, bear any  expenses of
complying with the Securities Act, other applicable securities laws or the rules
and  regulations  of  any  national  securities  exchange  or  other  regulatory
authority in connection with the registration,  qualification,  or transfer,  as
the case  may be,  of this  Option  or any  Shares  acquired  upon the  exercise
thereof.  The  foregoing  restrictions  on the  transfer of the Shares  shall be
inoperative  if (a) the Company  previously  shall have been  furnished  with an
opinion of counsel,  satisfactory  to it, to the effect that such  transfer will
not involve any violation of the Securities Act and other applicable  securities
laws or (b) the Shares shall have been duly  registered in  compliance  with the
Securities Act and other  applicable  state or federal  securities laws. If this
Option,  or the  Shares  subject to this  Option,  are so  registered  under the
Securities  Act,  the  Grantee  agrees  that he or she  will  not  make a public
offering of the said Shares  except on a national  securities  exchange on which
the stock of the Company is then listed.



                                       -3-

<PAGE>



         9.       Transferability of Shares; Company Repurchase Option.

                  9.01 No Transfer.  Except as otherwise  provided  herein,  and
until such time as (i) there shall be a regular  public  trading  market for the
Shares;  or (ii) the Board shall approve a transaction in which all shareholders
are expressly  granted the right to transfer  their shares,  the Grantee may not
sell, pledge, give, assign, distribute,  hypothecate,  mortgage or transfer (all
hereinafter  referred to as  "transfer")  any Shares  acquired  pursuant to this
Award  Agreement;  provided,  however,  that the  Grantee  may  transfer  Shares
acquired pursuant to this Award Agreement if the Committee specifically consents
thereto in writing prior to the consummation of the transfer.

                  9.02 Repurchase  Option.  The Company shall have the exclusive
option to purchase all, but not less than all, of the Shares acquired by Grantee
pursuant to this Award Agreement at a purchase price per Share equal to the Fair
Market Value on the date of such Termination of Service (the "Purchase Option").
The Purchase Option shall be exercisable  for a thirty day period  following the
later of (i) the date on which the Grantee  acquires the Shares  pursuant to the
Award Agreement; or (ii) the date of the Grantee's Termination of Service.

                  9.03 Payment.  If the Company  elects to exercise the Purchase
Option,  the Company  shall give notice of its  intention to purchase the Shares
and deliver  payment for such Shares within  fifteen days after the date of such
notice.  At the Company's  option,  the Company may designate  another person or
entity to  purchase  any of the  Shares  on its  behalf,  on the terms  provided
herein.

                  9.04 No Disclosure  Obligation.  The Grantee  acknowledges and
agrees that neither the Company nor any of its  shareholders,  board members and
officers,  has any duty or  obligation  to disclose to the Grantee any  material
information  regarding the business of the Company or affecting the value of the
Shares before or at the time of a Grantee's  Termination of Service,  including,
without limitation,  any information  concerning plans for the Company to make a
public  offering of its  securities  or to be acquired by or merged with or into
another firm or entity.

         10.  No  Conflict.  In the  event  of a  conflict  between  this  Award
Agreement and the Plan, the provisions of the Plan shall govern.

         11.  Governing  Law. This Award shall be governed under the laws of the
State of Delaware.



                                       -4-

<PAGE>



                                     ILLUMINET HOLDINGS, INC.


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



                                 ACKNOWLEDGMENT

         The  undersigned  Grantee  acknowledges  that he or she understands and
agrees to be bound by each of the terms and conditions of this Award Agreement.


- -----------------------------------        ------------------------------------
       Printed Name                                    Signature






                                                [Form adopted October 29, 1997]


                                       -5-

<PAGE>

                                      













                                    ILLUMINET
                         EXECUTIVE SHORT TERM BONUS PLAN
                                      1997



                                  Participant:













                            Confidential & Proprietary









<PAGE>





                                    ILLUMINET
              1997 EXECUTIVE SHORT TERM INCENTIVE COMPENSATION PLAN


- ------------------------------------------------------------------------------
                                TABLE OF CONTENTS
- ------------------------------------------------------------------------------



         TopicPage
         ----------------------------------------------

         Short-Term Bonus Plan Philosophy                                3

         Bonus Plan Overview                                             4

         Plan Description                                                5

         Plan Policies and Practices                                     6

         Bonus Calculation Examples                                     10




<PAGE>







EXECUTIVE SHORT-TERM BONUS PHILOSOPHY


Objectives                                  In  order  to  achieve  its  desired
                                            place in the market,  Illuminet must
                                            continually  enhance  its  focus  on
                                            customer   services   in   order  to
                                            respond  rapidly to changing  market
                                            and  competitive  conditions.  To do
                                            this,  we will continue to depend on
                                            exceptional  contributions  from our
                                            Senior   Managers.   Illuminet   has
                                            therefore   committed   to  a  bonus
                                            strategy  that  will  recognize  and
                                            reward performance of the company as
                                            well as the individual.


Plan                                        Achievement  of our corporate  goals
Participant's                               will  depend on unity of purpose and
Role                                        teamwork. Exceptional teams are made
                                            up   of   exceptional   individuals,
                                            mostly    fulfilling    specialists'
                                            roles.  Illuminet's  success depends
                                            on your success. We therefore depend
                                            on   you   to   contribute   to  the
                                            execution of the  business  plan and
                                            manage   for   revenue   growth  and
                                            profitability.


Illuminet's                                 Role We are  committed  to give  our
                                            Senior Managers both the opportunity
                                            and the  motivation  to  excel.  Our
                                            goal  is to  provide  incentives  to
                                            produce exceptional results.






<PAGE>





EXECUTIVE SHORT-TERM BONUS PLAN OVERVIEW


Plan                                        Objectives  There are two  important
                                            objectives of this short-term  bonus
                                            plan:

                                            -   Focus    attention   of   Senior
                                            Management    team    on    specific
                                            short-term  revenue and profit goals
                                            and motivate balanced achievement of
                                            these goals.

                                            - Reward Senior Managers in line
                                            with individual performance and
                                            contribution


Bonus                                       The  Short-Term  bonus is the Target
                                            bonus opportunity for performance at
                                            100%    of     goal.     Exceptional
                                            performance beyond Target to Stretch
                                            means the maximum  achievable  value
                                            as   defined   in  the   Performance
                                            Measures   identified   as   Company
                                            Financial   Objectives.   Short-term
                                            bonuses  may be awarded at less than
                                            100%,  however,  no bonuses  will be
                                            awarded   under  this  plan   unless
                                            EBITDA is at least 80% of target. No
                                            bonuses will exceed Stretch (40% for
                                            Officers and 20% for Directors). The
                                            Target and Stretch  percentages  are
                                            listed below:

                                            Officers               Directors
                                            --------------      ----------------
                                            Target  20%            Target  10%
                                            Stretch  40%           Stretch  20%

Performance  The 1997  Executive  Short-Term  Bonus is affected  Measures by the
following measures:

         -        Company Financial Objectives
                  EBITDA
                  ROE

         -        Individual Objectives




<PAGE>







PLAN DESCRIPTION



Financial                                   Performance  Bonus The bonus awarded
                                            for    achievement   of   thecompany
                                            financial  objectives  is defined at
                                            target  and   stretch  is   weighted
                                            heavier for Officers and  Directors,
                                            as  noted,   and  is  based  on  the
                                            following measures:

                                            - EBITDA:  Earnings before interest,
                                            taxes,        depreciation       and
                                            amortization.  This is a measure  of
                                            the  company's  ability to  generate
                                            cash  from  operations.   Percentage
                                            possible  for   target/stretch   for
                                            Directors  is  30/60  and  for  Vice
                                            Presidents it is 40/80.

                                            - Return on Equity (ROE):  This is a
                                            measure    of   the    return    for
                                            shareholders based upon their equity
                                            in the company. Components affecting
                                            equity include net income (including
                                            non-operational events such as gains
                                            and losses on investments  accounted
                                            for  on  the  equity  basis),  stock
                                            redemptions     (dissenters)     and
                                            dividends (if any). It is calculated
                                            as net  income  as a  percentage  of
                                            average   equity    (beginning   and
                                            ending).   Percentage  possible  for
                                            target/stretch   for   Directors  is
                                            30/60 and for Vice  Presidents it is
                                            40/80.


Individual Performance
Measures:                                   Individual   performance  objectives
                                            represent    strategic    activities
                                            related to your position.  The bonus
                                            awarded     in    this    area    is
                                            discretionary    and   is   weighted
                                            heavier for Directors.  A percentage
                                            is established  for Directors at 0 -
                                            80%  and  Officers  the   percentage
                                            range is 0 - 40%. The maximum  bonus
                                            will  be  awarded  for   exceptional
                                            performance only.







<PAGE>





1997 SHORT-TERM EXECUTIVE BONUS
PLAN POLICIES AND PRACTICES

Various  administrative  issues  impact  the payout  and  administration  of the
Short-Term  Executive  Bonus  Plan.  These  administrative  issues are  detailed
below:detailed below:

Plan Period                                 The Plan  Period is the fiscal  year
                                            of the company  which is now January
                                            1 of each calendar year.

Bonus                                       Eligibility  At the beginning of the
                                            Performance    Measurement   Period,
                                            Officers and  Directors of Illuminet
                                            will  be  named  by  the   Personnel
                                            Committee  as  participants  in  the
                                            1997 Plan.

                                            Executives  who are  employed  after
                                            the  beginning  of the Plan  Period,
                                            which   is   less    than   a   full
                                            measurement   period,  will  receive
                                            prorated incentive payments based on
                                            the number of months of service  and
                                            achievement of goals.


Administration of the Plan                  The  President/CEO   determines  the
                                            procedures and implementation of the
                                            Plan.  The President  will authorize
                                            the   Executives  to  establish  the
                                            individual   objectives   for   each
                                            participant  in line with  corporate
                                            strategies   and   objectives.   The
                                            President  has  final  authority  to
                                            approve  or  disapprove  any  issues
                                            related   to    interpretation    or
                                            administration of the Plan including
                                            resolution     of    any     unusual
                                            circumstances.  The  decision of the
                                            President  will  be  binding  on all
                                            parties.







<PAGE>






Performance Standards                       Performance measurements are set and
                                            approved  at  the  beginning  of the
                                            fiscal year.  The  standards are set
                                            in   line   with    corporate    and
                                            divisional operating objectives. The
                                            Standards   will  be  reviewed  each
                                            year.  Individual objective measures
                                            will be agreed to in  writing at the
                                            start of the period.


Bonus Calculation                           Calculations  of the bonus are based
                                            on   achievement  of  the  financial
                                            performance  objectives:  EBITDA and
                                            ROE   as    well    as    Individual
                                            Performance  Objectives.  A level of
                                            incentive   is    established    for
                                            Officers  at a  Target  of 20% and a
                                            Stretch  of 40%;  and for  Directors
                                            the Target is 10% and the Stretch is
                                            20%.

                                            Calculations    of   the   Financial
                                            Measurements    are   weighted   for
                                            Officers  at a Target and Stretch of
                                            between  40 and 80%.  For  Directors
                                            the   Financial   Measurements   are
                                            weighted at a Target and Stretch of
                                            between 30 and 60%.

                                            The  calculation  of the  Individual
                                            Performance      Measurement      is
                                            discretionary.  A level of incentive
                                            is established for Officers from 0 -
                                            40% and for Directors from 0 - 80%.


Authorization of Payment Bonus awards must be approved by the President/CEO.


Incentive                                   Payment Timing The Short-Term  bonus
                                            will be paid  approximately  45 days
                                            following  the  announcement  of the
                                            corporate  financial  results  after
                                            the end of the fiscal year.


Management                                  Discretion  Management  reserves the
                                            right to alter,amend,  suspend or in
                                            any other way change this Bonus Plan
                                            in  accordance   with  the  changing
                                            needs of the  Company.  The  Company
                                            view  will  prevail  in any  dispute
                                            over  the   interpretation  of  this
                                            Plan.


Termination                                 An individual may be terminated from
                                            the  Plan at any  time  at the  sole
                                            discretion  of  management.  In  the
                                            event that a person  terminates  for
                                            reasons of retirement or disability,
                                            the final award will be prorated.

                                            Upon the death of a participant, the
                                            award,  if any, will be prorated and
                                            will be  paid to a  beneficiary(ies)
                                            as designated by the participant.




<PAGE>





                                            If    a    participant    terminates
                                            employment   for  any  other  reason
                                            prior to  completing  the  incentive
                                            period,   the   participant  is  not
                                            eligible  to earn any  award for the
                                            period  in  which  the   termination
                                            occurs.   A   participant   must  be
                                            employed  by  Illuminet  on the last
                                            day  of  the   fiscal   year  to  be
                                            eligible for an award.


Right of Employment                         Participation  under  this Plan does
                                            not guarantee any right to continued
                                            employment.  Management reserves the
                                            right to restrict  participation  in
                                            the Plan for a  specified  period of
                                            time. A participant or Illuminet may
                                            terminate       the       employment
                                            relationship  at any  time,  for any
                                            reasons, with or without cause.


Right                                       of  Assignment  No right or interest
                                            in  the   Plan  is   assignable   or
                                            transferable,   or  subject  to  any
                                            lien, directly, by operation of law,
                                            or  otherwise   including   (without
                                            limitation)   bankruptcy,    pledge,
                                            garnishment,   attachment,  levy  or
                                            other creditor's process.


Taxes                                       All awards  payable  under this Plan
                                            are  taxable as  ordinary  income in
                                            the year of payment  and  subject to
                                            applicable taxes.







EXHIBIT 10.16
October 8, 1997

Mr. Terry Kremian
1604 145th Place S.E.
Millcreek, WA 58012

Dear Terry:

It is a pleasure to offer you the position of Vice President-Sales and Marketing
for  Illuminet  beginning no later than December 1, 1997.  Your starting  salary
will be $145,000  and you will be eligible  for an annual  bonus of up to 40% of
your  salary  depending  upon  attainment  of a  combination  of  corporate  and
individual  performance  objectives.  A copy  of the  short-term  bonus  plan is
attached.

You will receive a bonus of $25,000 upon joining the company and, it approved by
the Board of Directors,  will be eligible for a long-term  stock option  program
for officers and  directors.  This program will be presented for approval by the
Board of  Directors  in late  October.  I  anticipate  the  initial  grant to be
approximately 20,000 shares.

The  company  will  provide  up to $800.00  per month for a 1 bedroom  furnished
apartment in Olympia to assist you in your  relocation.  The  apartment  will be
provided for up to 9 months.  The company will also reimburse you for reasonable
relocation  expenses to cover the sale of your home,  the purchase of a new home
and transportation of household goods. As we discussed,  your relocation package
will not include reimbursement for any loss on the sale of your existing home.

If you are terminated, except for cause, within a two year period from your date
of hire,  you will be given a separation  payment equal to 6 months of your base
salary.

I'm looking  forward to working with you and to your  contribution to the growth
of Illuminet.

Please  acknowledge  the  acceptance  of this offer by signing and returning one
copy of this letter to me.

Sincerely,
/s/ Roger H. Moore
Roger H. Moore
President & CEO

RHM:cm
Enclosures

I acknowledge and accept this offer.
                                                 /s/ F. Terry Kremian
                                                        Terry Kremian





EXHIBIT 21

                            ILLUMINET HOLDINGS, INC.

                              LIST OF SUBSIDIARIES
                             AS OF DECEMBER 31, 1997


Illuminet, Inc.
U.S. Intelco Wireless Communications, Inc., a Washington corporation
U.S.I. Gateway, Inc., a Delaware corporation


<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>
THIS  SCHEDULE  CONTAINS  SUMMARY  FINANCIAL   INFORMATION  EXTRACTED  FROM  THE
CONSOLIDATED FINANCIAL STATEMENTS OF ILLUMINET HOLDINGS, INC. AS OF DECEMBER 31,
1997, AND FOR THE TWELEVE MONTHS THEN ENDED, AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<CIK>                                        0001002119
<NAME>                                       Illuminet Holdings, Inc.
<MULTIPLIER>                                 1  
<CURRENCY>                                   U.S. Dollars
       
<S>                                          <C>
<PERIOD-TYPE>                                  12-mos   
<FISCAL-YEAR-END>                              DEC-31-1997
<PERIOD-START>                                 Jan-01-1997
<PERIOD-END>                                   DEC-31-1997
<EXCHANGE-RATE>                                1
<CASH>                                         11,167,152
<SECURITIES>                                   0        
<RECEIVABLES>                                  25,100,209
<ALLOWANCES>                                   (1,282,000)
<INVENTORY>                                    0
<CURRENT-ASSETS>                               39,007,335
<PP&E>                                         68,530,057
<DEPRECIATION>                                 33,815,369
<TOTAL-ASSETS>                                 78,026,364
<CURRENT-LIABILITIES>                          27,011,053
<BONDS>                                        18,014,115
                          0
                                    25
<COMMON>                                       53,471
<OTHER-SE>                                     30,172,655
<TOTAL-LIABILITY-AND-EQUITY>                   78,026,364
<SALES>                                        0
<TOTAL-REVENUES>                               54,308,057
<CGS>                                          0
<TOTAL-COSTS>                                  46,519,497
<OTHER-EXPENSES>                               0
<LOSS-PROVISION>                               844,000
<INTEREST-EXPENSE>                             807,933
<INCOME-PRETAX>                                6,980,627
<INCOME-TAX>                                   (676,807)
<INCOME-CONTINUING>                            7,657,434
<DISCONTINUED>                                 0
<EXTRAORDINARY>                                0
<CHANGES>                                      0
<NET-INCOME>                                   7,657,434
<EPS-PRIMARY>                                  1.45
<EPS-DILUTED>                                  1.27
        





</TABLE>


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