TELIGENT INC
10-K405, 1999-03-29
RADIOTELEPHONE COMMUNICATIONS
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                            --------------------------
                                    FORM 10-K

[X] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE
      ACT OF 1934

For the fiscal year ended December 31, 1998.
                                       OR

[_] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES
      EXCHANGE ACT OF 1934

For the transition period from              to                .

                        Commission File Number 000-23387

                                 TELIGENT, INC.
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)

         DELAWARE                                      54-1866562
(STATE OR OTHER JURISDICTION               (I.R.S. EMPLOYER IDENTIFICATION NO.)
OF INCORPORATION OR ORGANIZATION)

        8065 LEESBURG PIKE
        SUITE 400
        VIENNA, VIRGINIA                                    22182
(ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)                 (ZIP CODE)

       REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE: (703) 762-5100

Securities registered pursuant to Section 12(b) of the Act:

                                      None

Securities registered pursuant to Section 12 (g) of the Act:

                          11 1/2% Senior Notes due 2007
                     11 1/2% Senior Discount Notes due 2008
                 Common Stock, Class A, par value $.01 per share

Indicate by check mark whether the registrant: (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days: Yes [X] No [_].

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405
of Regulation S-K is not contained herein, and will not be contained, to the
best of the registrant's knowledge, in the definitive proxy or information
statements incorporated by reference in Part III of this Form 10-K or any
amendment to this Form 10-K [X].

The aggregate market value of the registrant's voting stock held by
non-affiliates of the registrant was approximately $270 million on March 19,
1999, based on the closing sales price of the registrant's Class A Common Stock
as reported on The Nasdaq Stock Market as of such date.

The number of shares outstanding of each of the registrant's classes of common
stock as of March 19, 1999 was as follows:

                          Common Stock, Class A        8,268,796
                          Common Stock, Class B       44,426,299

                       DOCUMENTS INCORPORATED BY REFERENCE

Portions of the registrant's definitive proxy statement to be filed with the
Securities and Exchange Commission in connection with the Registrant's 1999
Annual Meeting of Stockholders, are incorporated by reference into Part
III.

<PAGE>

TABLE OF CONTENTS

                                            PART I

Item 1.    Business
Item 2.    Properties
Item 3.    Legal Proceedings
Item 4.    Submission of Matters to a Vote of Security Holders

                                            PART II

Item 5.    Market for Registrant's Common Equity and Related Stockholder Matters
Item 6.    Selected Financial Data
Item 7.    Management's Discussion and Analysis of Financial Condition and
           Results of Operations
Item 7A.   Quantitative and Qualitative Disclosures about Market Risk
Item 8.    Financial Statements and Supplementary Data
Item 9.    Changes in and Disagreements with Accountants on Accounting and
           Financial Disclosure

                                            PART III

Item 10.   Directors and Executive Officers of the Registrant
Item 11.   Executive Compensation
Item 12.   Security Ownership of Certain Beneficial Owners and Management
Item 13.   Certain Relationships and Related Transactions

                                            PART IV

Item 14.   Exhibits, Financial Statement Schedules and Reports on Form 8-K

Signatures

Index to Financial Statements

<PAGE>

         Except for any historical information contained herein, the matters
discussed in this Annual Report on Form 10-K contain certain "forward-looking
statements" within the meaning of the Private Securities Litigation Reform Act
of 1995 with respect to the Company's financial condition, results of operation
and business. The words "anticipate," "believe," "estimate," "expect," "plan,"
"intend" and similar expressions, as they relate to the Company, are intended to
identify forward-looking statements. Such statements reflect our current views
with respect to future events and involve known and unknown risks, uncertainties
and other factors including, but not limited to, economic, key employee,
competitive, regulatory, governmental and technological factors affecting the
Company's growth, operations, markets, products, services, licenses and other
factors discussed in the Company's other filings with the Securities and
Exchange Commission. The Company cannot be sure that any of its expectations
will be realized. Factors that may cause actual results, performance or
achievements of the Company, or industry results, to differ materially from
those contemplated by such forward-looking statements, include, without
limitation: (1) the Company's ability to meet its existing debt service
obligations and the availability of additional funds to pursue the Company's
business plan; (2) the Company's pace of entry into new markets and ability to
secure building access; (3) the time and expense required to build the Company's
planned network; (4) the Company's ability to integrate and maintain internal
management, technical information and accounting systems; (5) the impact of
changes in telecommunication laws and regulations; (6) the Company's success in
gaining regulatory approval for its products and services, when required; (7)
the Company's ability to successfully interconnect with the incumbent carriers;
(8) the timely supply of necessary equipment; (9) the intensity of competition;
and (10) general economic conditions.

Given these uncertainties, prospective investors are cautioned not to place
undue reliance on such forward-looking statements.

PART I

In this Annual Report on Form 10-K, we will refer to Teligent, Inc., a Delaware
Corporation, as "Teligent," the "Company," "we," "us," and "our." Where
applicable, such references refer to Teligent's limited liability company
predecessor.

ITEM 1.  BUSINESS

Teligent
- --------
         Teligent is a full-service, facilities-based communications company. We
offer small and medium-sized business customers local, long distance, high-speed
data and dedicated Internet services over our digital SmartWave(TM) local
networks. Our SmartWave(TM) local networks integrate point-to-point and
point-to-multipoint wireless technologies with traditional broadband wireline
technology. By integrating these technologies, we believe we are able to
increase local network efficiency and significantly lower network costs. We are
currently offering commercial service using our SmartWave(TM) local networks in
24 markets that comprise more than 405 cities and towns with a combined
population of more than 75 million. We offer service over our SmartWave(TM)
networks in New York, Los Angeles, Chicago, Baltimore, Richmond, Houston,
Philadelphia, Dallas-Fort Worth, San Francisco-Oakland, Miami-Fort Lauderdale,
Denver, Washington DC, Boston, Atlanta, San Jose, San Antonio, Orlando,
Jacksonville, Tampa, Austin, West Palm Beach, Milwaukee, New Orleans and
Wilmington, Delaware.
<PAGE>

         Teligent serves its customers primarily by placing a small digital
microwave antenna on the roof of a customer's building. When the customer picks
up the telephone, accesses the Internet or activates a videoconference, the
signal travels over the building's inside wiring to Teligent's equipment and the
rooftop antenna. The antenna sends voice, data and video signals to a nearby
Teligent base station, where the signals are communicated to a Teligent
broadband switching center and then onto their final destination.

         Our digital wireless technology provides fiber-like quality and can
transmit information at speeds more than 350 times faster than conventional
copper wire-based networks. We believe that the speed and reliability of our
services responds to the growing marketplace demand from small to medium-sized
businesses for fast and reliable telecommunications services. We believe this
demand results in part from the increased acceptance and reliance on the
Internet by business users as well as the emergence of bandwidth intensive
applications such as videoconferencing and large data file transfers.

         We believe we are well positioned to capture revenues in the estimated
$128 billion business communications market. Our focus is on the estimated $51
billion local exchange market, which is currently one of the most profitable
segments in the communications industry. Local exchange services have
historically been provided by regional monopolies known as incumbent local
exchange carriers or "ILECs." ILECs have typically used older, existing copper
wire-based networks. The ILECs' networks, faced with increasing demand from
businesses for new services, such as Internet access, at reasonable costs, have
created a "last mile bottleneck" between the customer location and the ILEC
network switch. Our market research indicates that the ILECs have been unable to
satisfy customer demands for cost-effective, flexible and responsive service and
that a significant portion of Teligent's target customer base - small and
medium-sized businesses - is currently dissatisfied with its ILEC service. The
potential revenue opportunity in this market, coupled with changes in the
regulatory environment designed to enhance competition, have created
opportunities for competitive local exchange carriers, or "CLECs," such as
Teligent. We intend to reduce or eliminate this last mile local bottleneck and
gain market share primarily through the use of our SmartWave(TM) local networks
while providing quality customer service and competitive pricing.

         We believe we can provide service throughout major market areas with
lower capital requirements than either fiber-based or exclusively point-to-point
wireless competitive local exchange carriers, enabling us to offer our services
to a broader customer base faster and at a lower cost. Our networks allow both
transmissions between multiple customer antennas and a single base station
antenna (point-to-multipoint) and transmissions between a single customer
antenna and a single base station (point-to-point), thereby allowing us to share
the same radio frequency spectrum among our customers and reducing our capital
expenditures. We also provide communications services to our customers using
traditional broadband wireline technology which also has been integrated into
our SmartWave(TM) local networks.

Teligent's Corporate History
- ----------------------------
         Teligent, Inc. was formed in September 1997 as a wholly owned
subsidiary of Teligent, L.L.C., a limited liability company formed in March
1996. Teligent, L.L.C. was formed by Microwave Services, Inc. ("MSI"), a
subsidiary of The Associated Group, Inc., and Digital Services Corporation
("DSC"), an affiliate of Telcom Ventures, L.L.C., both of which have extensive
experience in pioneering wireless communications businesses. In September 1996,
Alex J. Mandl, formerly President and Chief Operating Officer of AT&T, was named
<PAGE>

Chairman of the Board and Chief Executive Officer of Teligent. In October 1997,
Teligent, L.L.C. acquired all of the stock of FirstMark Communications, Inc. for
cash and a 5% member interest in Teligent, L.L.C. FirstMark Communications, Inc.
held various fixed wireless licenses. On November 21, 1997, in connection with
the initial public offering of Teligent Class A common stock, Teligent, L.L.C.
merged into Teligent ("the Merger"). Prior to the Merger, a wholly owned
subsidiary of Nippon Telegraph and Telephone Corporation ("NTT") acquired a 5%
interest in Teligent, L.L.C., and immediately after the Merger acquired an
additional 7.5% equity interest in Teligent, Inc. Pursuant to the Merger, all of
the ownership interests of Teligent, L.L.C. were exchanged for shares of
Teligent, Inc. Class B common stock, except for the ownership interest held by
FirstMark Communications, Inc. which was exchanged for shares of Class A common
stock.

Teligent's FCC Licenses
- -----------------------
         We hold 24 GHz fixed wireless digital message service (DEMS) licenses
granted by the Federal Communications Commission, the FCC. Our DEMS licenses
cover 74 market areas, comprising more than 750 municipalities in the United
States, including 320-400 MHz of spectrum in 27 of the 35 most populous market
areas in the United States, and at least 80 MHz of spectrum in 47 other major
market areas. These licenses which were previously granted for operations only
in the 18 GHz band, were not subject to grant by auction. See "Business -
Government Regulation - Federal Regulation - Relocation of Licenses to 24 GHz."
The majority of the 24 GHz licenses were either transferred or assigned to
Teligent pursuant to FCC authority. Teligent also holds certain common carrier
microwave licenses at other frequencies for use in its business.

Teligent's Service Offerings
- ----------------------------
         We offer an integrated package of services, including local and long
distance services (domestic and international) as well as Internet services,
voice mail, conferencing, videoconferencing, advanced fax management, integrated
single number service, call screening, call forwarding and other advanced
communications services.

         Local Phone Services. We provide our customers a complete range of
local phone services. These services include basic local services, access to
long distance and intra-LATA (local access and transport area) switched and
dedicated lines, direct inward dialing, Digital PBX, Centrex and custom calling
services.

         Long Distance. As a complement to our local phone services, we also
offer long distance services as part of a product bundle to customers through
agreements with national long distance companies. These long distance services
include domestic intrastate, interstate and international calling, toll-free
services (800, 888, 877), calling card, and conferencing and other enhanced
services. When our coverage area spans multiple LATAs, we use our own facilities
to provide inter-LATA long distance service.

         Internet and Data Services. Using the high bandwidth capacity of our
SmartWave(TM) local networks that allows high volumes of information to be
transmitted at high speeds, we offer transport for Internet services from our
customer's premise to an Internet access point in each city in which we offer
services.
<PAGE>

         Dedicated Private Line. We provide local dedicated data access circuits
as well as the long distance portion of those circuits. These links are used to
connect offices for file sharing, e-mail and workgroup applications.

Teligent's Network Architecture
- -------------------------------
         We deploy our SmartWave(TM) local networks, which are made up of fixed
wireless point-to-multipoint and point-to-point broadband local networks, as
well as traditional broadband wireline networks, to provide last mile customer
connection in our licensed market areas. We believe that having these types of
integrated networks allows us to accommodate new customers quickly, as well as
expand our customer base.

         We use a combination of wired and wireless facilities to connect the
voice switching and data routing center to the base stations distributed
throughout the market area. Our base stations transmit to and receive signals
from wireless equipment at a customer premise allowing transmissions between
multiple customer antennas and a single base station antenna. In the case of our
wireless customers, the customer premise equipment includes two components: (i)
a small digital microwave antenna installed generally on the roof of the
customer's building and (ii) indoor equipment installed within the building
which is connected to the internal building wiring. The antenna communicates
with a Teligent base station by a microwave signal. Our base stations have an
average coverage area of up to 30 square miles, depending on a number of factors
such as power levels used, customer density, local weather environment and
network design. We provide services to our wireline customers by using T-1 lines
that we have installed at our customer's premises.

         Our broadband switching centers house traditional circuit-based systems
as well as more advanced packet and cell-based switching systems. These
switching systems are engineered to interconnect customer traffic with other
local exchange networks, long distance networks and the Internet, as well as
with other locations the customer may have within the Teligent network. Our
customer premise equipment is shared among all customers in the building.
Similarly, equipment at each node site is shared among all customer premise
equipment served by that node.

         In June 1998, we opened a state-of-the-art customer service and network
operations center near our headquarters just outside of Washington, DC. Our
network operations center monitors our networks 24 hours-a-day, seven
days-a-week and provides real-time alarm, status and performance information.
Our network operations center also allows us to provide customers remote circuit
provisioning to ensure service availability, monitor various network elements to
ensure consistent and reliable performance, and plan for and conduct
preventative maintenance activities in order to avoid network outages and to
respond promptly to any network disruption that might occur.

Key Vendors
- -----------
         The majority of our network equipment, including switches, base
stations and antennas is currently provided by Northern Telecom, Inc.
("Nortel"), pursuant to a Network Products Purchase Agreement signed in December
1997. Although Nortel is our primary vendor and systems integrator, our strategy
is to identify and use additional suppliers to ensure a high level of quality
and reduce the cost of our equipment over time. In this regard, we evaluate
different suppliers and have begun testing equipment manufactured by suppliers
other than Nortel.
<PAGE>

Teligent's Business Strategy
- ----------------------------
         Our goal is to be a premier facilities-based communications provider to
small and medium-sized businesses. The steps we are taking to achieve this
objective are as follows:

         Target Small and Medium-Sized Businesses. Our primary marketing efforts
are focused on small and medium-sized businesses with 5 to 500 telephone lines.
These types of customers are located in more than 750,000 commercial buildings
throughout the United States. We target these customers through direct sales
efforts, telesales and indirect sales channels. We offer new and innovative
products like the industry's first flat rate service and our on-line
"e*magine(sm)" billing system. We may also, from time to time, selectively
pursue sales opportunities with larger businesses in certain situations.

         End User Focus. We currently offer our services directly to end users,
as opposed to acting as a "carrier's carrier" by offering services on the
wholesale level to others for resale to the end user. By earning the majority of
our revenues from providing services directly to end user customers, we believe
that we (i) are establishing and will be able to maintain a broad base of our
own customers, thereby minimizing the risk of having to rely on a limited number
of customers for the majority of our revenues, (ii) maximize revenues and
profitability by doing business in the higher priced retail market, and (iii)
distinguish ourselves through high quality service that is responsive to the
customer.

         Develop Brand Awareness. We are positioning Teligent as a high quality
service operator that provides reliable communications services and quality
customer support at competitive prices. In the fall of 1998, we launched a
nationwide mass media marketing campaign to reflect these objectives.

         Achieve Market Share Via Competitive Pricing. As a new market entrant,
our strategy is to price Teligent's services competitively to gain market share
early. We believe that we price our services at a significant discount to
existing competing offers. Generally, we average several representative bills
from our customer's current service providers and deduct up to 30% from such
average to arrive at the customer's new flat rate. Under this pricing plan,
local and Internet services are unlimited. If customers wish to increase their
long distance and international usage over current levels, they can purchase
more Teligent services at attractive prices. We anticipate that some ILECs may
reduce their prices as increased competition begins to erode their market share.
We expect to remain competitive if market prices decline. We believe that we
will be able to compete economically because of our lower network costs compared
to those of the ILECs.

         Rapid Deployment. We intend to take advantage of our ability to quickly
establish service in our market areas because of our lower capital requirements.
Our ability to enter our market areas quickly and establish service allows us to
establish an initial presence in a market, which further enhances Teligent's
relative cost advantage, attracts additional customers and develops our brand
reputation. In the fall of 1998, we announced a plan to accelerate our 1999
deployment schedule and we currently expect to be in 40 markets by the end of
the year.

         Exploit Future Growth Opportunities. We intend to continue building on
the capabilities of our networks to expand our target market and service
offerings. This expansion may include targeting international opportunities.

<PAGE>
         Sales and Marketing Overview. To develop the market potential of our
network, we have organized our operations into five geographic regions. Each
region has its own Regional Vice President in charge of operations, field
service, site acquisition, proactive customer service and sales and marketing.
The extent of sales activity in each market depends upon a number of factors
including (i) number of license areas, (ii) geographic size of license areas,
(iii) customer density within licensed areas, and (iv) the competitive
landscape.

         Sales Force/Customer Care. We seek to recruit salespeople with
successful experience in competitive communications businesses, including
individuals with backgrounds in competitive local exchange, competitive long
distance, telecommunications equipment and data services. Teligent's salespeople
have performance incentives that ties a significant portion of their
compensation to the actual revenue they produce. In addition, salespeople
receive performance incentives that encourage them to maximize penetration in
buildings in which we have installed customer premise equipment. Our sales force
is trained to sell Teligent's full product line of local, long distance,
Internet and data services.

         Marketing. We supplement our direct sales force through various
marketing plans, including direct mail, partnership marketing (in specific
buildings or associated properties), targeted advertising and promotional
efforts in our coverage areas. In addition, we use alternate or indirect
channels of distribution, including a sales agent program.

Competition in the Telecommunications Industry
- ----------------------------------------------
Local Telecommunications Market
- -------------------------------
         Competition from ILECs. The local telecommunications market is
intensely competitive for newer entrants and currently is dominated by the
Regional Bell Operating Companies, known as RBOCs, and other ILECs. In each
market area in which we are authorized to provide services, we compete or will
compete with several other service providers and technologies. We expect to
compete on the basis of local service features, quality, price, reliability,
customer service and rapid response to customer needs. The ILECs have long
standing relationships with their customers, have significant name recognition
and financial resources, have the potential to subsidize competitive services
with revenues from a variety of business services, and benefit from existing
state and federal regulations that favor the ILECs over us in certain respects.

         The Telecommunications Act of 1996 (the "Telecommunications Act")
reduced barriers to entry into new segments of the industry. We believe that the
requirements of the Telecommunications Act promote greater competition and have
helped provide opportunities for broader entrance into the local exchange
markets. However, as ILECs face increased competition, regulatory decisions are
likely to provide them with increased pricing flexibility, which in turn may
result in increased price competition. Increased price competition may
negatively impact Teligent.

         A number of companies, including the ILECs themselves, are developing
enhancements to increase the performance of ILECs' copper wire-based legacy
networks. These generally consist of digital subscriber line products, such as
ADSL, HDSL and VDSL. We may not be able to compete effectively with these
enhancements.
<PAGE>

         Competition from New 24 GHz and Other Fixed Wireless Companies. We face
potential competition from new entrants to the fixed wireless market, such as
Winstar Communications, Inc. and NextLink Communications, Inc., as well as IXC's
and other CLECs and other leading telecommunications companies. In addition, the
FCC has announced that it will devise rules for the issuance of 24 GHz licenses
for up to five 80 MHz channels in each market except for those licenses already
issued to Teligent. See "Business - Government Regulation." We believe that
additional 24 GHz licenses will be made available through an auction, and that
other entities having greater resources than we do could acquire authorizations,
when made available by the FCC. See "Business - Government Regulation."

         We also face competition from entities that offer or are licensed to
offer other terrestrial fixed wireless services, including Multichannel
Multipoint Distribution Service, 28 GHz Local Multipoint Distribution Service
and 38 GHz wireless communications systems, 2.8 GHz Wireless Communications
Service, FCC Part 15 unlicensed wireless radio devices, and other services that
use existing point-to-point wireless channels on other frequencies. One such
competitor, NextLink Communications, Inc., recently agreed to acquire WNP
Communications, Inc.'s Local Multipoint Distribution System wireless licenses
and announced plans to use the fixed wireless licenses to build extensions to
the local fiber optic networks that it plans to build in most major U.S. cities.
Additionally, other companies have filed applications for global broadband
satellite systems proposed to be used for broadband voice and data services. If
developed, these systems could also present us with significant competition.

         Other Competitors. We also face local and long distance competition
from AT&T, MCI WorldCom, Sprint, and other IXCs. We may face competition from
electric utilities (several have secured the necessary authorizations to provide
local telephone service and are in various stages of implementing their business
plans), ILECs operating outside their current local service areas, and other
providers. These entities provide transmission services using technologies that
may enjoy a greater degree of market acceptance than our wireless broadband
technology in the provision of last mile broadband services. Moreover, the
consolidation of telecommunications companies and the formation of business
alliances within the telecommunications industry, which are expected to
accelerate as a result of the passage of the Telecommunications Act, could give
rise to significant new or stronger competitors. We may not be able to compete
effectively in any of our markets.

Internet Services
- -----------------
         Our Internet services face significant competition from other Internet
Service Providers ("ISPs") as well as from other ILECs, CLECs and IXCs. There is
a great deal of competition in this industry, in the delivery of Internet
service to small and medium-sized businesses, our target market. Teligent
believes its local networks provide a low-cost advantage in delivering Internet
service. However, there can be no assurance that we can successfully compete
with larger and more established companies that already provide Internet service
or have resources to enter the market.

Long Distance Telecommunications Market
- ---------------------------------------
         The long distance market has relatively insignificant barriers to
entry, numerous entities competing for the same customers and a high average
churn rate as customers frequently change long distance providers in response to
the offering of lower rates or promotional incentives by competitors. We compete
with major carriers such as AT&T, Sprint and MCI WorldCom, as well as other
<PAGE>

national and regional long distance carriers and resellers. We believe that one
or more of the RBOCs may compete in the long distance telecommunications
industry in some states by year-end 1999. See "Business - Government
Regulation." ISPs also will compete in this market. We believe that the
principal competitive factors affecting our market share will be pricing,
customer service, accurate billing, clear pricing policies and, to a lesser
extent, variety of services. Our ability to compete effectively will depend on
maintaining high quality, market-driven services at prices generally perceived
to be equal to or below those charged by our competitors. To maintain a
competitive posture, we believe that we must be in a position to reduce prices
in order to meet reductions in rates, if any, by others. Any such reductions
could adversely affect us. In addition, ILECs have been obtaining additional
pricing flexibility. This may enable ILECs to gain volume discounts from larger
long distance companies, which also would put our long distance business at a
disadvantage in competing with these providers.

Intellectual Property
- ---------------------
         We use the name "Teligent" as our primary business name and servicemark
in the United States. We own U.S. Reg. No. 1,893,005 - TELIGENT, which was
originally issued on May 9, 1995 to Creative Integrated Systems, Inc. for
various items of communication equipment, based on use in commerce since January
6, 1994. We have licensed Creative Integrated Systems, Inc. to continue using
the mark in connection with communications equipment.

         On April 7, 1997, we filed applications to register our name and logo
design in the United States Patent and Trademark Office for "land based and
satellite communications services." Those applications are currently pending. In
addition, we applied for and obtained registration of THE SMART WAY TO
COMMUNICATE, U.S. Reg. No. 2,220,244, issued January 26, 1999. We have also
acquired rights in connection with one other mark that we are using and have
filed several applications with the U.S. Trademark Office to register marks that
we are using or which we intend to use. We reasonably believe that the
applications will mature to registration, but there is no assurance until the
registrations actually issue. We are also pursuing the registration of service
marks and trademarks in various countries outside the United States, but we have
not yet secured those registrations. If we decide to conduct business in a
country in which we are unable to obtain rights to some of the marks we use in
the U.S., including "TELIGENT," we may determine to license rights to use those
marks or conduct business under a different name or mark.

         We rely upon a combination of licenses, confidentiality agreements and
other contractual covenants, to establish and protect our technology and other
intellectual property rights. We currently have no patents and one patent
application pending addressing the online billing system known as
"e*magine(sm)." We cannot be sure the steps we take will be adequate to prevent
misappropriation of our technology or other intellectual property or that our
competitors will not independently develop technologies that are substantially
equivalent or superior to Teligent's technology. Moreover, although we believe
that our business as currently conducted does not infringe upon the valid
proprietary rights of others, we cannot be sure that third parties will not
assert infringement claims against Teligent or that, in the event of an
unfavorable ruling on any such claim, a license or similar agreement to utilize
technology that we rely upon in the conduct of our business will be available on
reasonable terms.
<PAGE>

Government Regulation
- ---------------------
Overview
- --------
         Our fixed wireless broadband services are subject to regulation by
federal, state and local governmental agencies. We have received authority to
offer competitive local telephone services in 39 states and the District of
Columbia, comprising all of our 74 markets. That compares to 27 markets in which
authority had been granted at the end of 1997. We have also successfully
negotiated interconnection agreements covering 72 markets with all of the major
local exchange carriers, including Ameritech, Bell Atlantic, GTE, Pacific Bell,
Southwestern Bell, Sprint (Centel), Bell South and US WEST. At the end of 1997,
we had interconnection agreements covering 25 markets.

         At the federal level, the FCC has jurisdiction over the use of the
electromagnetic spectrum (i.e., wireless services) and has exclusive
jurisdiction over all interstate telecommunications services, that is, those
that originate in one state and terminate in another state. State regulatory
commissions generally have jurisdiction over intrastate communications, that is,
those that originate and terminate in the same state. Municipalities and other
local jurisdictions may regulate limited aspects of our business by, for
example, imposing zoning and franchise requirements and requiring installation
permits. We are also subject to taxation at the federal and state levels and may
be subject to varying taxes and fees from local jurisdictions.

Federal Legislation
- -------------------
         The Telecommunications Act. The Telecommunications Act, enacted on
February 8, 1996, established local exchange competition as a national policy by
removing state regulatory barriers to competition and the preemption of laws
restricting competition in the local exchange market. The Telecommunications Act
mandated that ILECs comply with various requirements designed to foster
competition. In addition, the Telecommunications Act allows RBOCs to provide
in-region inter-LATA services on a state-by-state basis once certain
market-opening requirements are implemented and entry is determined to be in the
public interest. The provisions of the Telecommunications Act are designed to
ensure that RBOCs take affirmative steps to level the playing field for their
competitors so that others can compete effectively before the RBOC secures
in-region long-distance entry. To date, no RBOCs have gained authority to
provide in-region inter-LATA service.

Federal Regulation
- ------------------
         The Telecommunications Act Regulations. The Telecommunications Act in
some sections is self-executing, but in most cases the FCC must issue
regulations that identify specific requirements before we and our competitors
can proceed to implement the changes prescribed by the Telecommunications Act.
The outcome of these various ongoing FCC rulemaking proceedings or judicial
appeals of such proceedings could materially affect our business, financial
condition and results of operations.

         Pursuant to the Telecommunications Act, the FCC adopted, in August
1996, new rules implementing the interconnection and resale provisions of the
Telecommunications Act (the "Interconnection Order"). In July 1997, the United
States Court of Appeals for the Eighth Circuit set aside significant portions of
the FCC's Interconnection Order. On January 25, 1999, however, the Supreme Court
reinstated key provisions of the FCC's Interconnection Order including
<PAGE>

provisions governing the pricing of local services and elements as well as its
"pick and choose" provision. The Supreme Court vacated the FCC's unbundled
element rule, however, pursuant to which ILECs are required to make divisible
elements of their networks and services (for example local loops available for
lease by CLECs). The Supreme Court decision creates the greatest uncertainties
for competitors who largely depend on such elements to compete. We believe that
this decision may comparatively advantage Teligent which does not rely heavily
on ILEC unbundled elements. The FCC is expected to issue a rulemaking proceeding
in the future to address this issue.

         FCC Licensing. The Communications Act of 1934 (the "Communications
Act") imposes certain requirements relating to licensing, common carrier
obligations, reporting and treatment of competition. We believe that we are in
compliance with all FCC requirements relating to our licenses and common carrier
obligations. Teligent has also obtained a "Section 214" authorization from the
FCC. This authorizes us to provide international facilities-based
telecommunications services between the U.S. and virtually any other country. We
must maintain--and currently do have--tariffs on file with the FCC governing our
provision of domestic interstate and international common carrier
telecommunications services.

         Relocation of Licenses to 24 GHz. The FCC issued an Order (the
"Relocation Order") on March 14, 1997, essentially relocating certain DEMS
licensees in the 18 GHz band to a reallocated portion of the 24 GHz band,
pursuant to a request of the National Telecommunications and Information
Administration ("NTIA") acting on behalf of the Department of Defense. The
Relocation Order provided for the relocation of these licenses from 100 MHz over
5 channels in the 18 GHz band to 400 MHz over 5 corresponding channels in the 24
GHz band. On June 24, 1997, the FCC issued a subsequent order (the "Modification
Order") that implemented the Relocation Order by modifying the affected 18 GHz
licenses, including ours, to authorize operations at 24 GHz. Pursuant to the
Relocation Order, those 18 GHz fixed wireless operators in the Washington, DC
and Denver, CO areas (including our Washington, DC, Baltimore, MD and Denver, CO
facilities) were required to relocate to corresponding channels in the 24 GHz
band no later than June 5, 1997. Although we are permitted to continue
operations in the 18 GHz band outside of the Washington, DC and Denver, CO areas
until January 1, 2001, we have converted most of our facilities to 24 GHz band
operations.

         The FCC implemented the relocation to 24 GHz without notice and comment
procedures in order to give effect to NTIA's request to protect national
security satellite operations from harmful interference from 18 GHz licensed
stations. A number of parties filed petitions for reconsideration. The FCC
issued its Reconsideration Order (the "Reconsideration Order") on July 17, 1998
affirming its original Relocation Order in all respects. One party, Webcel
Communication appealed the FCC's Order to the United States Court of Appeals for
the District of Columbia. We filed a motion to intervene and a motion to dismiss
for lack of standing on December 7, 1998. On February 16, 1999, the court
granted our motion to intervene but the motion to dismiss is still pending.
There can be no assurance that the FCC will be able to defend any such
litigation successfully. The court has many options. For example, the court may
affirm the Reconsideration Order, vacate and remand the matter to the FCC for
initiation of a rulemaking proceeding, or make any other ruling. If the matter
is remanded, the FCC could fully affirm its DEMs relocation or it could make a
different decision, which may be adverse to Teligent. Failure by the court to
affirm the terms of the Reconsideration Order could have a negative effect on
Teligent.
<PAGE>

         Alien Ownership. On October 30, 1998, the FCC granted Teligent's
petition for a public interest determination that its licensed subsidiaries
could increase indirect foreign ownership up to a 49.9% non-controlling level
through fluctuations in publicly traded shares without obtaining prior FCC
approval. Our foreign ownership is currently below 49.9%.

State Regulation
- ----------------
         Many of our services are classified as intrastate services subject to
state regulation. All of the states where we operate, or will operate, require
some degree of state regulatory commission approval to provide certain
intrastate services. In most states, intrastate tariffs are also required for
various intrastate services, although we are not typically subject to price or
rate of return regulation for tariffed intrastate services. We have received
state authorizations to provide facilities-based local and long distance
services in 39 states and the District of Columbia, covering all 74 of our only
licensed markets. Of the remaining eleven states, we have obtained long distance
authorization in six states and we have applications pending for long distance
authority in the other five.

Local Regulation
- ----------------
         We need to interact with local governments in a variety of ways. How
diverse local governments will exercise traditional functions, including zoning,
permitting and management of rights of ways, and address the expansion of
telecommunications competition and varying means of entry in particular, is
uncertain. The kinds and timing of approvals required to install antennas and
conduct other aspects of our business varies among local governments and may
also vary with the specific technology or equipment configuration.

         While the Telecommunications Act permits local governments to manage
rights of way, the scope of that authority, including the circumstances when
fees can be charged and the amount of such charges, has already been the subject
of numerous disputes between telecommunications carriers and local governments.
In addition, some local governments have been requiring substantial filings and
review before telecommunications carriers can operate in their licensed areas
and have also required the payment of significant franchise fees or taxes. Some
of these disputes involving licensing of telecommunications carriers, antenna
siting, and rights of way are in litigation and more litigation is likely. On
December 12, 1997, we accepted under protest a franchise with the City of
Dallas, which is similar to other Dallas franchises agreed to by other CLECs. On
the same date, we filed a Complaint for Declaratory Judgment against the City of
Dallas in the United States District Court for the Northern District of Texas
alleging that Teligent does not own, construct, install or maintain facilities
located in public rights of way, and that the City of Dallas is therefore
prohibited both by federal and state law from barring Teligent's competitive
entry into the Dallas market unless Teligent first accepts a franchise. Teligent
secured a preliminary injunction providing that it does not need to comply with
the Dallas ordinance. We cannot make assurances as to the outcome of the
litigation. The FCC has recently prevented enforcement of certain state and
local regulations that had the effect of inhibiting local competition. Any
inability or unwillingness by the FCC or the courts to preempt additional state
and local regulations in a timely fashion could adversely impact Teligent.

Employees
- ---------
         As of March 19, 1999, Teligent had a total of 1,821 employees.
<PAGE>

ITEM 2.  PROPERTIES

         Our main executive offices are located at Vienna, Virginia, where we
lease approximately 75,000 square feet. We also lease approximately 50,000
square feet of space for our network operating center, located in Herndon,
Virginia. We have been leasing space in and around each of our licensed areas
to house personnel, switching and other communications equipment.

ITEM 3.  LEGAL PROCEEDINGS

         Other than the license and regulatory proceedings described under
"Government Regulation," we are not currently a party to any legal proceedings
which we believe will have a material adverse effect on our financial condition
or results of operations.

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

         During the fourth quarter of the fiscal year covered by this Annual
Report on Form 10-K, there were no matters submitted to a vote of security
holders through the solicitation of proxies or otherwise.
<PAGE>

PART II

ITEM 5. MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER MATTERS

         We have two classes of common stock authorized and outstanding, Class A
common stock and Class B common stock. Our Class A common stock, par value $.01
per share was first offered to the public on November 21, 1997 and is listed on
The Nasdaq National Market under the symbol "TGNT." Our Class B common stock,
par value $.01 per share, is not traded on any exchange. As of March 19, 1999,
there were three stockholders of record of the Class B common stock. The
following table shows the high and low sales price information of the Class A
common stock as reported on The Nasdaq National Market. These transactions
reflect inter-dealer quotations, without retail markup, markdown or commission
and may not necessarily represent actual transactions.

                                                           CLASS A
                                                         COMMON STOCK
                                                         ------------
                                                     HIGH             LOW
                                                     ----             ---
  November 21, 1997 to December 31, 1997           $27             $23 1/2

  Quarter ended March 31, 1998                     $34 15/16       $24 1/4
  Quarter ended June 30, 1998                      $31 5/8         $26 1/4
  Quarter ended September 30, 1998                 $33 1/4         $19 1/2
  Quarter ended December 31, 1998                  $33             $21 15/16

         As of March 19, 1999, the last sale price of the Class A common stock
as reported on The Nasdaq National Market was $38 15/16 per share. As of March
19, 1999 there were 183 record holders of Teligent's Class A common stock. This
number does not include stockholders who beneficially own shares held in street
name by brokers.

         We have not paid any cash dividends on our common stock in the past and
do not plan to in the foreseeable future. The terms of the Existing Credit
Facility (see "Management's Discussion and Analysis of Financial Condition and
Results of Operations - Liquidity and Capital Resources"), the indentures
relating to our 11 1/2% Senior Notes due 2007, and our 11 1/2% Senior Discount
Notes due 2008, restrict our ability to pay dividends on common stock.

<PAGE>
ITEM 6. SELECTED FINANCIAL DATA

         The selected financial data presented below as of December 31, 1998,
1997 and 1996, and for the years ended December 31, 1998, 1997, and the period
from March 5, 1996 (date of inception) to December 31, 1996, were derived from
our audited financial statements. You should read this data together with
"Management's Discussion and Analysis of Financial Condition and Results of
Operations" and our audited financial statements and related notes, included
elsewhere in this Annual Report on Form 10-K.

<TABLE>
<CAPTION>
                                                                March 5, 1996
                                                             (date of inception)
                                    Years Ended December 31,          to
                                      1998            1997    December 31, 1996
                                      ----            ----    -----------------
                                (in thousands, except share and per share data)
<S>                               <C>            <C>             <C>
Statement of Operations Data: (1)
 Revenues........................ $       960    $     3,311     $     1,386
 Cost and expenses:
 Cost of services................      81,044          4,785           1,625
 Sales, general and administrative    122,256         38,398           8,290
 Stock-based and other noncash
   compensation..................      32,164         89,111           4,071
 Depreciation and amortization...      14,193          6,454             164
                                      -------        -------          ------
 Total costs and expenses........     249,657        138,748          14,150
                                      -------        -------          ------
 Loss from operations............    (248,697)      (135,437)        (12,764)

 Interest and other income.......      34,106          3,242              10
 Interest expense................     (66,880)        (5,859)           (879)
                                      -------        -------          ------
 Net loss                         $  (281,471)   $  (138,054)    $   (13,633)
                                      =======        =======          ======

Other Data:
 Basic and diluted net loss
    per share.................... $     (5.35)   $     (2.94)    $     (0.29)
 Weighted average common shares
    outstanding..................  52,596,573     46,950,860      46,257,709
 EBITDA (2)                       $  (202,340)   $   (39,872)    $    (8,529)
 Cash used in operating
    activities...................    (162,077)       (33,260)         (6,046)
 Cash used in investing
    activities...................     (68,172)      (115,755)         (3,709)
 Cash provided by financing
    activities...................     221,595        572,613          11,058

<PAGE>
<CAPTION>
                                                   December 31,
                                      1998            1997            1996
                                      ----            ----            ----
                                                  (in thousands)
<S>                               <C>            <C>             <C>
Balance Sheet Data:
 Cash and cash equivalents....... $   416,247    $   424,901     $     1,303
 Working capital.................     302,408        441,316          (6,978)
 Property and equipment, net.....     180,726          8,186           3,545
 Total assets....................     763,434        607,380          19,145
 Long-term debt, less current
    portion......................     576,058        300,000               -
 Stockholders' equity............      31,053        285,146           10,425

</TABLE>

         (1) Certain amounts in the prior periods' financial statements have
been reclassified to conform to the current year's presentation.

         (2) EBITDA consists of earnings before interest, taxes, depreciation,
amortization, and charges for stock-based and other non-cash compensation. While
not a measure under generally accepted accounting principles ("GAAP"), EBITDA is
a measure commonly used in the telecommunications industry, and we include it to
help you understand the Company's operating results. Although you should not
assume that EBITDA is a substitute for operating income determined in accordance
with GAAP, we present it to provide additional information about our ability to
meet future debt service, capital expenditures and working capital requirements.
See the Financial Statements and the related notes. Since all companies and
analysts do not calculate these non-GAAP measurements the same way, the amount
may not be comparable to other calculations.

<PAGE>

ITEM 7.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
            CONDITION AND RESULTS OF OPERATIONS

          Certain statements set forth below under this caption constitute
"forward-looking statements" within the meaning of the Private Securities
Litigation Reform Act of 1995. Please refer to page 3 of this Annual Report on
Form 10-K for additional factors relating to such statements.

General
- -------
         The following discussion and analysis is based on Teligent's financial
statements from its inception on March 5, 1996 to December 31, 1998 and should
be read together with the Financial Statements and related notes contained
elsewhere in this Annual Report on Form 10-K.

Overview
- --------
         From our inception, on March 5, 1996, through our launch date in
October 1998, our main activities were the acquisition of licenses and
authorizations, the acquisition of building access rights, the hiring of
management and other key personnel, the raising of cash, the development of
operating systems, the negotiation of interconnection agreements and the
acquisition and deployment of our network.

         On October 27, 1998, we introduced our integrated package of
communication services, and launched commercial services in our first ten
markets. Since then, we have initiated communications services in fourteen
additional markets. We offer local, long distance, high-speed data and dedicated
Internet services for one flat monthly rate, offering up to 30 percent savings
compared to the customer's existing provider. We expect that the creation of our
own digital networks will give us a lower cost structure than the traditional
local telephone companies, or other competitors that use the existing local
networks, allowing us to pass these savings on to our customers.

          Our losses, as well as our negative operating cash flow have been
significant to date, and we expect both to continue until we develop a customer
base that will generate sufficient revenues to fund operating expenses. After we
initiate service in most of our of markets, we expect to have positive operating
margins over time by increasing the number of customers and selling them
additional capacity without significantly increasing related capital
expenditures, costs of building access rights and other operating costs. We
expect that operating and net losses and negative operating cash flow in 1999
will increase over 1998 as we begin our first full year providing commercial
service. See "Liquidity and Capital Resources."

Factors Affecting Future Operations
- -----------------------------------
         The successful execution of our business plan is expected to result in
rapid expansion of our operations. Rapid expansion of our operations may place a
significant strain on our management, financial and other resources. Our ability
to manage this expansion effectively will depend upon, among other things,
monitoring operations, controlling costs, maintaining regulatory compliance,
interconnecting successfully with the incumbent carriers, maintaining effective
quality controls, securing building access, and significantly expanding our
internal management, technical, information and accounting systems and to
attract, assimilate and retain qualified management and professional and
technical personnel. If we are unable to hire and retain staff, expand our
facilities, purchase adequate supplies of equipment, increase the capacity of
<PAGE>

our information systems and/or successfully manage and integrate such additional
resources, customers could experience delays in connection of service and/or
lower levels of customer service. Failure to meet the demands of customers and
to manage the expansion of our business and operations could have a material
adverse effect on our business, financial condition and results of operations.

         Although fixed wireless technology has been in use for a significant
period of time, our point-to-multipoint technology has only been commercially
used on a limited basis. We selected point-to-multipoint technology because we
believe it compliments existing wireless and wireline technologies that we
employ in our networks. If our point-to-multipoint technology does not perform
as expected or provide the advantages that we expect, our business, financial
condition and results of operations may be materially adversely affected.

Revenues
- --------
         We offer an integrated package of local and long distance telephone
services, value-added services, high-speed data connectivity, Internet access
and videoconferencing. As a new market entrant, our strategy is to price our
services competitively to gain market share early. We believe that we price our
services at a significant discount to existing competing offers. Generally, we
average several representative bills from our customer's current service
providers and deduct up to 30% from that average to arrive at the customer's new
flat rate. Local and Internet services are unlimited. We anticipate that some
ILECs may reduce their prices as increased competition begins to reduce their
market share. We expect to remain competitive if market prices decline because
of our lower network costs compared to those of the ILECs.

Cost of Services
- ----------------
         Certain costs are required to operate and maintain our networks,
including: real estate leases for switching centers, base station sites and
customer sites; preparation, installation, operation and maintenance of
switching centers, base station sites and individual customer radio links, as
well as customer premise equipment; leasing of backhaul facilities between base
station sites and switching centers; network operation center facility expense;
the cost to interconnect and terminate traffic with other network providers;
software licensing fees; and network design and base station configuration
planning.

Sales, General and Administrative Costs
- ---------------------------------------
         We incur costs related to the selling, marketing and promotion of our
products and services. These costs primarily include headcount costs for our
sales and other personnel, as well as advertising costs to develop brand
awareness of the Teligent name.

         We also incur operating costs that are common to all telecommunications
providers including customer service and technical support, information systems,
billing and collections, general management and overhead expense, office leases,
bad debt expense and administrative functions. Those areas that will require
more personnel as our customer base grows, such as customer service, will
increase gradually as customer demand increases. Other areas, particularly
information and billing systems, have required significant up-front capital
expenditures and operating costs.
<PAGE>

Capital Expenditures
- --------------------
         Our main capital expenditure requirements include the purchase and
installation of customer premise equipment, base stations, network switches,
switch electronics and network operations center expenditures.

         Customer Premise Equipment ("CPE"). The purchase and installation of
CPE is the largest single capital expense component in our business plan. Our
CPE costs include an integrated radio/antenna unit, modem(s), power supply,
multiplexer and router equipment, line interface cards, and cables and
installation materials. Portions of the CPE costs can be shared by customers in
the same building, which reduces the capital expenditures required per customer.
In the event a customer leaves us, our CPE can be used at other customer
premises, which reduces stranded assets. While a certain amount of equipment
must initially be installed at each base station, the majority of the equipment
(and cost) will depend on the number of customers acquired. As more customers
are loaded onto a given base station area, we will add additional sectors, radio
antennas and modems to the initial base station equipment to meet customer
demand.

             Base Station Site. A base station can serve customers within a
360-degree coverage area, subject to lines of sight. Teligent's average coverage
area is approximately 30 square miles, depending on local conditions. A base
station typically comprises four to eight sectors, each of which cover a section
of the service area depending on coverage and capacity requirements. Each sector
requires one or more radio/antenna units and modems, depending on the system
deployed. Construction costs per base station are typically higher than are
construction costs per customer site. We expect that our sites will typically be
built on top of buildings as opposed to towers constructed by us.

         Base Station to Switch Transport. We transport traffic between our base
stations and switching sites. To the extent we use wireless transport rather
than leased fiber, we would incur capital expenditures as opposed to operating
costs.

         Switching. Switching costs include traditional circuit-based switches,
line cards for interfacing with the backhaul networks and with the networks of
other carriers, packet- and cell-based switching systems, such as ATM and Frame
Relay switches, power systems, and environmental maintenance equipment.

Year 2000
- ---------
         The Year 2000 Challenge. An issue affecting Teligent and other
companies is whether computer systems and applications will recognize and
process date data for the Year 2000 and beyond. The "Year 2000 issue" arises
primarily because many computer programs were written using two, rather than
four digits to identify the applicable year. As a result, date-sensitive
computer programs may recognize a two-digit code for a year in the next century
as one related to this century.

         Teligent's Response. Our first priority in our Year 2000 effort is to
protect mission-critical operations from material service interruptions that
could occur as a result of the Year 2000 transition. We define mission-critical
operations as those systems and applications that are vital to the provision of
voice, video and data switching, processing and transport services to our
customers. To that end, in September 1998 the Audit Committee of the Teligent
Board of Directors considered a Year 2000 plan. Around that same time, the
<PAGE>

Company appointed a Year 2000 committee to lead the Company-wide effort to
assess the extent of our risks and ensure our applications will function
properly. Our Year 2000 committee consists of senior executives and other key
personnel given the responsibility of directing the Company's Year 2000
activities and helping to resolve issues, overcome obstacles and make decisions
relating to the Year 2000 effort.

         Teligent's Status of Readiness. Our approach to addressing the Year
2000 challenge is consistent with industry practice and is organized into four
key phases:

(1)  Inventory -- identify related data for any element within the Teligent
      enterprise that may be impacted by the Year 2000 date change;

(2)  Assessment -- analyze Teligent's Year 2000 exposure based on available
      information and determine risks to our business continuity. Risk is a
      factor of the likelihood of Year 2000 problems occurring and the impact of
      such occurrences on us;

(3)  Test & Remediate -- validate the assessment, determine remediation
      approach, and take remediation action if we deem it necessary and
      appropriate. Remediation may entail repair, replacement, manual
      work-arounds, or, in some cases, no action. In this phase we will develop
      mitigation and contingency plans for mission critical aspects of our
      business; and

(4)  Implement -- place mitigation and contingency plans into effect in order of
      priority based on mission criticality, and, where necessary, validate
      remediation action.

         For purposes of its Year 2000 efforts, we have divided our operations
into five categories or functions: Information Technology ("IT") infrastructure;
end user computing; suppliers; facilities and equipment; and products and
services. We have substantially completed a Year 2000 inventory for all five
business functions, and have made substantial progress in assessing these
functions. Our remediation and implementation progress for the IT
infrastructure, end user, computing, suppliers, and products and services
functions is in the initial stages. Remediation and the implementation of the
facilities and equipment category will follow further assessment in that
category.

         Generally, we require our key vendors and suppliers to warrant in
writing that they are Year 2000 ready. We purchased most of our mission-critical
systems from third party vendors. We have identified certain key vendors and
contacted them to discuss the readiness of their products. These discussions are
ongoing. If a vendor or supplier is not able to provide satisfactory Year 2000
assurances, we will monitor their progress in this area and, if appropriate, may
arrange to have available an alternate vendor or supplier who can give such
assurances. Like other telecommunications providers, our products and services
are also dependent upon other service and telecommunications providers. For
those providers with which our systems interface and exchange data, we are
initiating or continuing discussions regarding their Year 2000 readiness.

         Costs to Address Year 2000 Issues. We have not determined the exact
cost we expect to incur to prepare our systems for the Year 2000. So far, our
main cost has been the retention of outside consultants together with the cost
of internal resources, both dedicated to Year 2000 program management,
<PAGE>

inventory, and assessment efforts. We estimate these costs to be less than $5
million. Based on current assessments and compliance plans in process, we do not
expect that the Year 2000 issue, including the cost of making our mission
critical systems and applications Year 2000 ready, will materially effect our
business, consolidated financial condition, cash flows and results of
operations.

         Risk Associated with the Company's Year 2000 Issues. Despite our
efforts to address the Year 2000 impact on operations, we may not be able to
fully identify the impact or resolve it without disruption to our business and
without incurring significant expense. If appropriate modifications are not made
on time by our vendors or by other providers on which we depend, or if our
actual costs or timing for our Year 2000 readiness differ materially from our
present estimates, our business, financial condition and results of operations
and financial results could be significantly adversely affected. In particular,
we cannot make assurances that the systems of other parties that we rely on will
be ready on time.

         The Company's Contingency Plans. Our contingency plans, which will be
developed as the inventory and assessment phases progress, will be designed to
minimize the disruptions or other adverse effects resulting from Year 2000
incompatibilities with mission-critical systems.

         Our contingency plans will consider an assessment of all our critical
internal information technology systems and our internal operational systems
that use computer-based controls. In addition, we will assess any critical
disruptions due to Year 2000-related failures that are external to the Company.
These processes will begin January 1, 2000, and will continue as long as
circumstances require.

         Our contingency plans will include the creation of teams that will be
prepared to respond immediately to critical Year 2000 problems as soon as they
become known. The make up of teams that are assigned to deal with such problems
will vary according to the nature, significance, and location of the problem.

Results of Operations
- ---------------------
Year Ended December 31, 1998 Compared to 1997
- ---------------------------------------------
         For the year ended December 31, 1998 ("1998"), we generated revenues of
approximately $1.0 million from communication services, compared to
approximately $33,000 for the year ended December 31, 1997 ("1997"). In 1997, we
generated approximately $3.3 million of revenues related to management services
and equipment leases primarily provided to MSI and DSC.

         Cost of services, consisting primarily of personnel-related costs and
site rent and acquisition expenses related to network operations, was
approximately $81.0 million for 1998, compared with approximately $4.8 million
in 1997. This increase reflects the establishment of our initial fifteen markets
and development of network operations.

         Sales, general and administrative expenses, consisting primarily of
headcount-related costs, were approximately $122.3 million for 1998, compared
with approximately $38.4 million in 1997. This increase relates primarily to
costs incurred to develop our infrastructure and sales force as we prepared for
commencement of operations in 1998.
<PAGE>

         Stock-based and other noncash compensation expense was approximately
$32.2 million in 1998, compared to approximately $89.1 million in 1997. The
decrease is due to the charge related to company appreciation rights granted
prior to our initial public offering in 1997.

         Depreciation and amortization for 1998 was approximately $14.2 million,
compared with approximately $6.5 million in 1997, due primarily to higher
capital expenditures in 1998, and amortization expense of intangibles which were
principally acquired in the fourth quarter of 1997.

         Interest and other income for 1998 was approximately $34.1 million,
compared to approximately $3.2 million in 1997. This increase was primarily the
result of interest earned on increased levels of cash and investments resulting
from our initial public equity offering and our two debt offerings in 1997 and
1998.

         Interest expense was approximately $66.9 million for 1998, compared to
approximately $5.9 million in 1997. This increase was due to the 11 1/2% Senior
Notes issued in November 1997 and the 11 1/2% Senior Discount Notes issued in
February 1998.

Year Ended December 31, 1997 Compared to the Period March 5, 1996 (date of
- --------------------------------------------------------------------------
inception) to December 31, 1996
- -------------------------------
         For the year ended December 31, 1997, we generated revenues of
approximately $3.3 million, including approximately $2.7 million of management
and other services primarily provided to MSI and DSC, and approximately $0.6
million from equipment leases. For the period March 5, 1996 (date of inception)
to December 31, 1996 ("1996"), we generated revenues of approximately $1.4
million, including approximately $1.2 million of management and other services
primarily provided to MSI and DSC, and approximately $0.2 million from equipment
leases.

         In 1997, our cost of services was approximately $4.8 million, compared
to approximately $1.6 million in 1996. In 1997, sales, general and
administrative expenses were approximately $38.4 million, compared to
approximately $8.3 million in 1996. Increases in these categories were primarily
related to increased payroll and consulting costs relating to the start-up
activities of the Company.

         Stock-based and other noncash compensation expense was approximately
$89.1 million in 1997, compared to approximately $4.1 million in 1996. The
increase is due to the nature of the charge related to company appreciation
rights granted prior to our initial public offering in 1997.

         Depreciation and amortization was approximately $6.5 million in 1997,
compared to approximately $0.2 million in 1996, due to an impairment loss
included in depreciation expense of $5.0 million, as well as higher capital
expenditures and amortization of intangibles acquired in 1997.

         Interest expense for 1997 increased to approximately $5.9 million, from
approximately $0.9 million in 1996, due to borrowings under a Revolving Credit
Agreement (terminated in November 1997), and the 11 1/2% Senior Notes offering
which occurred in November 1997. Interest and other income for 1997 was
approximately $3.2 million, compared to approximately $10,000 in 1996.
<PAGE>

Liquidity and Capital Resources
- -------------------------------
         In order to develop our business, we will need a significant amount of
money to pay for equipment, meet our debt obligations and operate the business
on a day-to-day basis. Our principal equipment-related needs include the
purchase and installation of CPE, base stations, network switches and switch
electronics, network operations center expenditures and information systems,
platforms and interfaces. Based on our current business plan, we anticipate our
existing cash and cash equivalents on hand together with the Existing Credit
Facility (defined below) will provide enough money to carry out our current
business plan through the year 2000. Actual requirements may vary based upon the
timing and success of our roll-out. If demand for our services is lower than
anticipated, we may to be able to cut back on purchases of equipment such as CPE
and switch electronics, which are not needed until a customer signs up with us.
If we accelerate implementation of our network roll-out, we may need to obtain
additional financing earlier than anticipated.

         We expect that we will need additional financing after December 2000,
which may include commercial bank borrowings, additional credit facilities or
the sale or issuance of equity or debt securities either through one or more
offerings or to one or more strategic investors. There can be no assurance that
we will be able to obtain additional financing at all, or on terms acceptable to
us.

         Because the cost of rolling-out our networks and operating our business
will depend on a variety of factors (including our ability to meet our roll-out
schedules, our ability to negotiate favorable prices for purchases of network
equipment, the number of customers and the services for which they subscribe,
the nature and success of new services that we may offer, regulatory changes and
changes in technology), actual costs and revenues may vary from expected
amounts, possibly to a material degree, and such variations are likely to affect
how much additional financing we will need. Further, the exact amount of our
financial needs will depend upon other factors, including the cost to develop
our networks in each of our markets, the extent of competition and pricing of
telecommunications services in ours markets, the acceptance of our services and
the development of new products. Accordingly, there can be no assurance that our
actual financial needs will not exceed the anticipated amounts described above.

Existing Credit Facility
- ------------------------
         On July 2, 1998, we entered into a credit agreement (the "Bank Credit
Agreement") with The Chase Manhattan Bank, Goldman Sachs, and Toronto Dominion
Bank, and other lenders, providing for credit facilities up to an aggregate of
$800 million (the "Existing Credit Facility"). The Existing Credit Facility will
be used primarily for the purchase of telecommunications equipment, software and
services and is also available for working capital and general corporate
purposes. Availability of funds under the Existing Credit Facility is subject to
certain conditions as defined in the Bank Credit Agreement. Our obligations
under the Bank Credit Agreement are secured by substantially all of our assets
and certain of our subsidiaries' assets.

         The Existing Credit Facility is structured into three separate tranches
consisting of a term loan facility, a delayed draw term loan facility and a
revolving credit facility. We have the ability to borrow funds over the next
four years (other than with respect to the delayed draw facility which is
scheduled to expire on July 1, 1999, subject to extension), with a final
maturity of eight years. Interest accrues on outstanding borrowings based on a
floating rate tied to the prevailing LIBOR rate or an alternate base rate, and
<PAGE>

adjusts based on our attainment of certain key revenue and leverage benchmarks.
We incurred commitment and other fees in connection with obtaining the Existing
Credit Facility totaling $19.9 million, which is being amortized on a straight
line basis over eight years. As of December 31, 1998, we had no outstanding loan
balance under the Existing Credit Facility. The Existing Credit Facility
contains certain financial and other covenants that restrict, among other
things, our ability to (a) incur or create additional debt, (b) enter into
mergers or consolidations, (c) dispose a significant amount of assets, (d) pay
dividends, or (e) change the nature of our business. The amounts outstanding
under the Existing Credit Facility are subject to mandatory prepayments in
certain circumstances.

Senior Discount Notes Offering
- ------------------------------
          On February 20, 1998, we completed an offering (the "Discount Notes
Offering") of $440 million 11 1/2 % Senior Discount Notes due 2008 (the "Senior
Discount Notes"). We received approximately $243.1 million in net proceeds from
the Discount Notes Offering, after deductions for offering expenses of
approximately $7.6 million. Under an exchange offer which was completed on
August 13, 1998, all outstanding Senior Discount Notes were exchanged for 
11 1/2% Series B Discount Notes due 2008 (the "New Discount Notes"), which have
been registered under the Securities Act of 1933, as amended. The New Discount
Notes are identical in all material respects to the Senior Discount Notes.

Senior Notes Offering
- ---------------------
         In November 1997, we issued $300 million of 11 1/2% Senior Notes due
2007 (the "Senior Notes"). We received approximately $289 million in net
proceeds from the Senior Notes offering, after deductions for offering expenses
of approximately $11 million. We used approximately $93.9 million of the net
proceeds of this offering to purchase a portfolio of U.S. Treasury securities,
which are classified as restricted cash and investments on the balance sheet,
and have been pledged as collateral for the payment of interest on the Senior
Notes through December 1, 2000. Interest on the Senior Notes accrues at a rate
of 11 1/2 % per annum and is payable semi-annually on June 1 and December 1,
commencing June 1, 1998.

Initial Public Common Stock Offering
- ------------------------------------
         In November 1997, we completed an initial public offering of 6,325,000
shares of Class A common stock at $21.50 per share, raising approximately $125.7
million of net proceeds, after deducting approximately $10.3 million of offering
expenses.

Former Credit Facility
- ----------------------
         In December 1996, we entered into a loan agreement with a bank
providing for a $50.0 million senior secured revolving credit facility (the
"Former Credit Facility") which expired December 19, 1997. In November 1997, we
used $42.5 million of proceeds from member cash contributions to repay all
outstanding amounts under the Former Credit Facility, which was terminated.

Historical Cash Flows
- ---------------------
         To develop our networks, we have relied upon several sources for cash
flow. We received cumulative cash contributions of approximately $70.4 million
from MSI and DSC. In November 1997, we received net proceeds of cash
contributions totaling $99.0 million (net of transaction expenses) from NTT's
<PAGE>

investment, and we received an additional $414.3 million of net proceeds from
our initial public debt and equity offerings. We used $42.5 million of these
contributions to repay the outstanding balance of the Former Credit Facility. We
also used $93.9 million of the net proceeds from the debt offering to purchase a
portfolio of U.S. Treasury Securities, pledged as collateral for the payment of
interest on the Senior Notes through December 1, 2000.

         From inception through December 31, 1998, we used approximately $201.4
million of cash for operating activities and approximately $187.6 million of
cash in our investing activities. At December 31, 1998, we had working capital
of approximately $302.4 million and unrestricted cash (including cash
equivalents) of approximately $416.2 million, compared to working capital of
approximately $441.3 million and cash of approximately $424.9 million at
December 31, 1997. The decrease in working capital from December 31, 1997 to
December 31, 1998 is primarily a result of an increase in accounts payable to
vendors as the Company implements its growth strategy. We will need a
significant amount of cash to build our networks, market our services and cover
operating expenditures.

         Our total assets increased from approximately $607.4 million as of
December 31, 1997 to approximately $763.4 million at December 31, 1998, due
primarily to receiving proceeds from the Discount Notes Offering, and the
acquisition of property and equipment which was accrued and will be paid in
1999.

         For the year ended December 31, 1998 we used cash in operations of
approximately $162.1 million, due primarily to the operating loss for the period
reduced by non-cash stock-based compensation and current liabilities at December
31, 1998. We used cash in operations of approximately $33.3 million for the year
ended December 31, 1997, due primarily to the operating loss for the period
reduced by non-cash stock-based compensation and current liabilities at December
31, 1997.

         We used approximately $68.2 million cash in investing activities in
1998, consisting of $97.2 million for the purchase of property and equipment,
offset by $29.0 million of interest received on the U.S. Treasury securities. In
1997, we used cash in investing activities of approximately $115.8 million,
consisting primarily of $10.0 million for the purchase of property and
equipment, $10.7 million of payments for the acquisition of FirstMark
Communications, Inc. and $93.9 million for the purchase of U.S. Treasury
securities which are pledged as collateral for the payment of interest on the
Senior Notes through December 1, 2000.

         Cash flows provided by financing activities amounted to approximately
$221.6 million in 1998, consisting primarily of net proceeds from the Company's
Senior Discount Notes Offering, after costs of $29.5 million. For 1997, cash
flows provided by financing activities amounted to approximately $572.6 million,
consisting primarily of $160.3 million of cash contributions from MSI, DSC and
NTT, and $414.3 million of net proceeds from our initial public offering and the
offering of the Senior Notes, after costs of $21.7 million.
<PAGE>

ITEM 7A.      QUANTITATIVE AND QUALITATIVE DISCLOSURE ABOUT MARKET RISK

         Although all of our long-term debt bears interest at a fixed rate, the
fair market value of the fixed-rate long-term debt is sensitive to changes in
interest rates. We run a risk that market rates will decline and that required
payments will exceed those based on the current market rate. We currently do not
use interest rate derivative instruments to manage our exposure to interest rate
changes, but may do so when we draw on our Existing Credit Facility.

ITEM 8.       FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

         Our financial statements and supplementary data, together with the
report of the independent auditor, are included or incorporated by reference
elsewhere in this report. Refer to the "Index to Financial Statements and
Financial Statement Schedule" following the signature pages.

ITEM 9.       CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON
              ACCOUNTING AND FINANCIAL DISCLOSURE

         None.

PART III

ITEM 10.      DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT

         The information required by this Item is incorporated here by reference
to our definitive proxy statement for our 1999 Annual Meeting of Stockholders.

ITEM 11.      EXECUTIVE COMPENSATION

         The information required by this Item is incorporated here by reference
to our definitive proxy statement for our 1999 Annual Meeting of Stockholders.

ITEM 12.      SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT

         The information required by this Item is incorporated here by reference
to our definitive proxy statement for our 1999 Annual Meeting of Stockholders.

ITEM 13.      CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

         The information required by this Item is incorporated here by reference
to our definitive proxy statement for our 1999 Annual Meeting of Stockholders.
<PAGE>

PART IV

ITEM 14.  EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND REPORTS ON  FORM 8-K

(a) The following documents are filed as part of this report:

     (1)  Financial Statements

          Consolidated Balance Sheets as of December 31, 1998 and 1997
          Consolidated Statements of Operations for the years ended December 31,
            1998 and 1997, and the period from March 5, 1996 (date of inception)
            to December 31, 1996
          Consolidated Statements of Stockholders' Equity for the period from
            March 5, 1996 (date of inception) to December 31, 1998
          Consolidated Statements of Cash Flows for the years ended December 31,
            1998 and 1997, and the period from March 5, 1996 (date of inception)
            to December 31, 1996
          Notes to Consolidated Financial Statements

     (2)  Financial Statement Schedules

          All schedules are omitted because they are not applicable or not
          required or because the required information is incorporated here by
          reference or included in the financial statements or related notes
          included elsewhere in this report.

(b) Reports on Form 8-K.

     Current Report on Form Form 8-K was filed with the Securities and Exchange
      Commission on October 30, 1998 to announce the launch of Teligent's
      integrated communications services in its first ten markets.

(c) Exhibits. The following exhibits are filed as a part of this Annual Report
    on Form 10-K:

3.1         Form of Certificate of Incorporation of Registrant, filed as Exhibit
             3.1 to the Company's Registration Statement on Form S-1
             (Registration No. 333-37381), dated November 26, 1997, and
             incorporated herein by reference.
3.2         Form of By-laws of Registrant, filed as Exhibit 3.2 to the Company's
             Registration Statement on Form S-1 (Registration No. 333-37381),
             dated November 26, 1997, and incorporated herein by reference.
4.1         Form of Stockholders Agreement, filed as Exhibit 4.1 to the
             Company's Registration Statement on Form S-1 (Registration No.
             333-37381), dated November 26, 1997, and incorporated herein by
             reference.
4.2         Form of Indenture between the Registrant, as issuer, and First Union
             National Bank, as Trustee, relating to Registrant's Senior Notes
             due 2007, including form of Note, filed as Exhibit 4.2 to the
             Company's Registration Statement on Form S-1 (Registration No.
             333-37381), dated November 26, 1997, and incorporated herein by
             reference.
4.3         Form of Pledge Agreement between Registrant, as issuer, and First
             Union National Bank, as Escrow Agent, relating to Registrant's
             Senior Notes due 2007, filed as Exhibit 4.3 to the Company's
             Registration Statement on Form S-1 (Registration No. 333-37381),
             dated November 26, 1997, and incorporated herein by reference.
<PAGE>

4.4         Form of Indenture between the Registrant, as issuer, and First Union
             National Bank, as Trustee, relating to Registrant's Senior Discount
             Notes due 2008, including form of Note, filed as Exhibit 4.4 to the
             Company's Annual Report on Form 10-K filed with the Commission on
             March 31, 1998, and incorporated herein by reference.
4.5         Form of Certificate for the Class A common stock, filed as Exhibit
             4.4 to the Company's Registration Statement on Form S-1
             (Registration No. 333-37381), dated November 26, 1997, and
             incorporated herein by reference.
10.1        Employment Agreement, dated August 19, 1996, between Associated
             Communications, L.L.C. and Alex J. Mandl, filed as Exhibit 10.1 to
             the Company's Registration Statement on Form S-1 (Registration No.
             333-37381), dated November 26, 1997, and incorporated herein by
             reference.
10.2        Stock Contribution Agreement, dated as of March 10, 1997, among
             Associated Communications, L.L.C., FirstMark Communications, Inc.
             and Lynn Forester, filed as Exhibit 10.2 to the Company's
             Registration Statement on Form S-1 (Registration No. 333-37381),
             dated November 26, 1997, and incorporated herein by reference.
10.3        Securities Purchase Agreement, dated as of September 30, 1997, by
             and among Teligent, L.L.C., Microwave Services, Inc., Digital
             Services Corporation, and Nippon Telegraph and Telephone
             Corporation, filed as Exhibit 10.3 to the Company's Registration
             Statement on Form S-1 (Registration No. 333-37381), dated November
             26, 1997, and incorporated herein by reference.
10.4        Form of Registration Rights Agreement, by and among Teligent, L.L.C.
             and Nippon Telegraph and Telephone Corporation, filed as Exhibit
             10.4 to the Company's Registration Statement on Form S-1
             (Registration No. 333-37381), dated November 26, 1997, and
             incorporated herein by reference.
10.5        Form of Technical Services Agreement, by and among Teligent, L.L.C.
             and NTT America, Inc., filed as Exhibit 10.5 to the Company's
             Registration Statement on Form S-1 (Registration No. 333-37381),
             dated November 26, 1997, and incorporated herein by reference.
10.6        Agreement, dated September 29, 1997, among Teligent, L.L.C., Digital
             Services Corporation, Telcom-DTS Investors, L.L.C., Microwave
             Services, Inc., The Associated Group, Inc. and certain other
             parties, filed as Exhibit 10.6 to the Company's Registration
             Statement on Form S-1 (Registration No. 333-37381), dated November
             26, 1997, and incorporated herein by reference.
10.7        Agreement and Plan of Merger, dated as of October 6, 1997, by and
             between Teligent, Inc. and Teligent, L.L.C., filed as Exhibit 10.7
             to the Company's Registration Statement on Form S-1 (Registration
             No. 333-37381), dated November 26, 1997, and incorporated herein by
             reference.
10.8        Form of Lease Agreement, dated as of July 22, 1997, for the 8065
             Leesburg Pike, Vienna, Virginia office space lease between NHP
             Incorporated and Teligent, L.L.C. , filed as Exhibit 10.8 to the
             Company's Registration Statement on Form S-1 (Registration No.
             333-37381), dated November 26, 1997, and incorporated herein by
             reference.
10.9        Form of Teligent, Inc. 1997 Stock Incentive Plan, filed as Exhibit
             10.9 to the Company's Registration Statement on Form S-1
             (Registration No. 333-37381), dated November 26, 1997, and
             incorporated herein by reference.
<PAGE>

10.10       Network Products Purchase Agreement, dated December 11, 1997, by and
             between Northern Telcom Inc. and Teligent, Inc., filed as Exhibit
             10.10 to the Company's Annual Report on Form 10-K filed with the
             Commission on March 31, 1997, and incorporated herein by reference
             [Confidential treatment has been granted for portions of this
             document].
10.11       Credit Agreement, dated July 2, 1998 among Teligent, Inc., several
             banks and other financial institutions or entities, Chase
             Securities, Inc., Goldman Sachs Credit Partners L.P. and TD
             Securities (USA) Inc., as advisers and arrangers, Goldman Sachs
             Credit Partners L.P., as syndication agent, The Chase Manhattan
             Bank, as administrative agent and Toronto Dominion (Texas), Inc. as
             documentation agent. Filed as exhibit 10 to the Company's Form 8-K,
             filed on August 13, 1998, and incorporated herein by reference.
10.12       Promissory Note, dated February 1, 1997, by Kirby G. Pickle, Jr. to
             Associated Communications, L.L.C., filed as Exhibit 10.10 to the
             Company's Registration Statement (Registration No. 333-37381),
             dated November 26, 1997, and incorporated herein by reference.
10.13       Promissory Notes, each dated October 29, 1997, by Abraham L. Morris
             to Teligent, L.L.C., filed as Exhibit 10.11 to the Company's
             Registration Statement on Form S-1 (Registration No. 333-37381),
             dated November 26, 1997, and incorporated herein by reference.
10.14       Promissory Note, dated August 5, 1997, by Laurence E. Harris to
             Associated Communications, L.L.C., filed as Exhibit 10.12 to the
             Company's Registration Statement on Form S-1 (Registration No.
             333-37381), dated November 26, 1997, and incorporated herein by
             reference.
10.15       Promissory Note, dated April 7, 1997, by Steven F. Bell to
             Associated Communications, L.L.C., filed as Exhibit 10.14 to the
             Company's Registration Statement on Form S-1 (Registration No.
             333-37381), dated November 26, 1997, and incorporated herein by
             reference.
10.16       Registration rights agreement dated as of March 6, 1998, by and
             between Teligent, Inc., and Microwave Services, Inc., filed as
             Exhibit 10.16 to the Company's Annual Report on Form 10-K, filed
             with the Commission on March 31, 1998, and incorporated herein by
             reference.
10.17       Registration rights agreement dated as of February 20, 1998 by and
             between Teligent, Inc. and Merrill Lynch, Pierce, Fenner & Smith
             Incorporated ("Merrill Lynch"), Goldman Sachs & Co., Salomon
             Brothers Inc., and TD Securities (USA) Inc., filed as Exhibit 10.17
             to the Company's Annual Report on Form 10-K, filed with the
             Commission on March 31, 1998, and incorporated herein by reference.
21.1        Significant Subsidiaries of the Registrant.
23.1        Consent of Ernst & Young LLP, Independent Auditors.
27.1        Financial Data Schedule (filed only electronically with the
             Securities and Exchange Commission).
99.1        Press release of Teligent, Inc. dated March 1, 1999 (filed herein).

<PAGE>

SIGNATURES

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

                                           TELIGENT, INC.
                                           (Registrant)

                                              /s/ Alex J. Mandl
Date:  March 26, 1999                    By:  ---------------------------
                                              Alex J. Mandl
                                              Chairman of the Board,  Chief
                                              Executive  Officer and Director


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




                                               /s/ Alex J. Mandl
Date: March 26, 1999                     By:   --------------------------
                                               Alex J. Mandl
                                               Chairman of the Board,  Chief
                                               Executive  Officer and Director


                                               /s/ Abraham L. Morris
Date: March 26, 1999                     By:   --------------------------
                                               Abraham L. Morris
                                               Senior Vice President,  Chief
                                               Financial  Officer and Treasurer
                                              (Principal Financial Officer)

                                               /s/ Cindy L. Tallent
Date: March 26, 1999                     By:   --------------------------
                                               Cindy L. Tallent
                                               Vice President and Controller
                                              (Principal Accounting Officer)


                                               /s/ Myles P. Berkman
Date: March 26, 1999                     By:   --------------------------
                                               Myles P. Berkman
                                               Director


<PAGE>

                                               /s/ David J. Berkman
Date: March 26, 1999                     By:   --------------------------
                                               David J. Berkman
                                               Director


                                               /s/ William H. Berkman
Date: March 26, 1999                     By:   --------------------------
                                               William H. Berkman
                                               Director


                                               /s/ Donald H. Jones
Date: March 26, 1999                     By:   --------------------------
                                               Donald H. Jones
                                               Director

                                               /s/ Tetsuro Mikami
Date: March 26, 1999                     By:   --------------------------
                                               Tetsuro Mikami
                                               Director


                                               /s/ Rajendra Singh
Date: March 26, 1999                     By:   --------------------------
                                               Rajendra Singh
                                               Director



<PAGE>


  TELIGENT, INC.
  INDEX TO FINANCIAL STATEMENTS

                                                                           Page
                                                                          Number

  Report of Ernst & Young LLP, Independent Auditors...............          F-2
  Consolidated Balance Sheets as of December 31, 1998 and 1997....          F-3
  Consolidated Statements of Operations for the years ended
     December 31, 1998 and 1997 and the period from March 5, 1996
     (date of inception) to December 31, 1996.....................          F-4
  Consolidated Statements of Stockholders' Equity for the period
     from March 5, 1996 (date of inception) to December 31, 1998..          F-5
  Consolidated Statements of Cash Flows for the years ended
     December 31, 1998 and 1997 and the period from March 5, 1996
     (date of inception) to December 31, 1996.....................          F-6
  Notes to Consolidated Financial Statements .....................          F-7





<PAGE>

             REPORT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS


The Board of Directors and Stockholders
Teligent, Inc.

         We have audited the accompanying consolidated balance sheets of
Teligent, Inc., as of December 31, 1998 and 1997, and the related consolidated
statements of operations, stockholders' equity and cash flows for the years
ended December 31, 1998 and 1997 and for the period from March 5, 1996 (date of
inception) to December 31, 1996. The consolidated financial statements are the
responsibility of the Company'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
Teligent, Inc., at December 31, 1998 and 1997, and the consolidated results of
its operations and its cash flows for the years ended December 31, 1998 and 1997
and for the period from March 5, 1996 (date of inception) to December 31, 1996,
in conformity with generally accepted accounting principles.

                                                  /s/ERNST & YOUNG LLP


Vienna, Virginia
February 12, 1999




















                                      F-2







<PAGE>
                                  TELIGENT, INC.
                           CONSOLIDATED BALANCE SHEETS
                                 (In thousands)
<TABLE>
<CAPTION>
                                                             December 31,
                                                         1998            1997
                                                         ----            ----
<S>                                                    <C>             <C>
 Assets
Current assets:
   Cash and cash equivalents .....................     $ 416,247      $ 424,901
   Prepaid expenses and other current assets .....         8,155          7,087
   Restricted cash and investments ...............        32,184         30,373
                                                       ---------      ---------
      Total current assets .......................       456,586        462,361

Property and equipment, net ......................       180,726          8,186

Restricted cash and investments ..................        33,117         64,702
Intangible assets, net ...........................        83,857         60,354
Other assets .....................................         9,148         11,777
                                                       ---------      ---------
      Total assets ...............................     $ 763,434      $ 607,380
                                                       =========      =========

Liabilities and Stockholders' Equity
Current liabilities:
   Accounts payable ..............................     $ 135,158      $  16,578
   Accrued interest and other ....................        19,020          4,467
                                                       ---------      ---------
      Total current liabilities ..................       154,178         21,045

11 1/2% Senior Notes, due 2007 ...................       300,000        300,000
11 1/2% Series B Discount Notes, due 2008 ........       276,058           --
Other non-current liabilities ....................         2,145          1,189

Commitments and contingencies
Stockholders' equity:
   Preferred stock ...............................          --             --
   Common stock ..................................           526            526
   Additional paid-in capital ....................       463,685        436,307
   Accumulated deficit ...........................      (433,158)      (151,687)
                                                       ---------      ---------
      Total stockholders' equity .................        31,053        285,146
                                                       ---------      ---------
   Total liabilities and stockholders' equity ....     $ 763,434      $ 607,380
                                                       =========      =========
</TABLE>








                                      F-3
<PAGE>

                                 TELIGENT, INC.
                      CONSOLIDATED STATEMENTS OF OPERATIONS
               (In thousands, except share and per share amounts)
<TABLE>
<CAPTION>
                                                                                    Period from
                                                                                   March 5, 1996
                                                                                (date of inception)
                                                        Year ended December 31,    to December 31,
                                                        ----------------------    -----------------
                                                         1998            1997            1996
                                                         ----            ----            ----
<S>                                              <C>             <C>             <C>
Revenues:
    Communication services ...................   $        960    $         33    $       --
    Management fees and other services .......            --            3,278           1,386
                                                 ------------    ------------    ------------
       Total revenues ........................            960           3,311           1,386
                                                 ------------    ------------    ------------
Costs and expenses:
    Cost of services .........................         81,044           4,785           1,625
    Sales, general and administrative expenses        122,256          38,398           8,290
    Stock-based and other noncash compensation         32,164          89,111           4,071
    Depreciation and amortization ............         14,193           6,454             164
                                                 ------------    ------------    ------------
       Total costs and expenses ..............        249,657         138,748          14,150
                                                 ------------    ------------    ------------
    Loss from operations .....................       (248,697)       (135,437)        (12,764)

Interest and other income ....................         34,106           3,242              10
Interest expense .............................        (66,880)         (5,859)           (879)
                                                 ------------    ------------    ------------
    Net loss before provision for income taxes       (281,471)       (138,054)        (13,633)
Provision for income taxes ...................           --              --              --
                                                 ------------    ------------    ------------
    Net loss .................................   $   (281,471)   $   (138,054)   $    (13,633)
                                                 ============    ============    ============

Net loss per share ...........................   $      (5.35)   $      (2.94)   $      (0.29)
                                                 ============    ============    ============

Weighted average common shares outstanding ...     52,596,573      46,950,860      46,257,709
                                                 ============    ============    ============
</TABLE>













                                      F-4
<PAGE>

                                     TELIGENT, INC.
                      CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
           Period from March 5, 1996 (date of inception) to December 31, 1998
                                    (In thousands)

<TABLE>
<CAPTION>
                                                                            Additional
                                                    Capital      Common      Paid-in    Accumulated
                                                 Contributions    Stock      Capital      Deficit      Total
                                                 -------------  ---------   ----------  ----------   --------
<S>                                               <C>          <C>          <C>         <C>          <C>
Balance at March 5, 1996 (date of inception) ..   $    --      $    --      $    --     $    --      $    --
Member capital contributions ..................      24,058                                             24,058
Net loss ......................................                                           (13,633)     (13,633)
                                                  ---------    ---------    ---------   ---------    ---------
   Balance at December 31, 1996 ...............      24,058         --           --       (13,633)      10,425
                                                  ---------    ---------    ---------   ---------    ---------

Contribution of licenses from members .........       8,497                                              8,497
Acquisition ...................................      31,500                                             31,500
Cash contributions ............................     100,301                                            100,301
Contribution of equity prior to public offering                       35       59,965                   60,000
Conversion of member interests
  to capital stock ............................    (164,356)         428      163,928                     --
Conversion of CARs and Appreciation Units
   to stock options ...........................                                86,821                   86,821
Public stock offering .........................                       63      125,593                  125,656
Net loss ......................................                                          (138,054)    (138,054)
                                                  ---------    ---------    ---------   ---------    ---------
   Balance at December 31, 1997 ...............        --            526      436,307    (151,687)     285,146
                                                  ---------    ---------    ---------   ---------    ---------

Exercise of stock options .....................                                   372                      372
Stock-based compensation ......................                                27,006                   27,006
Net loss ......................................                                          (281,471)    (281,471)
                                                  ---------    ---------    ---------   ---------    ---------
   Balance at December 31, 1998 ...............   $    --      $     526    $ 463,685   $(433,158)   $  31,053
                                                  =========    =========    =========   =========    =========
</TABLE>
















                                      F-5
<PAGE>
                                 TELIGENT, INC.
                      CONSOLIDATED STATEMENTS OF CASH FLOWS
                                 (In thousands)
<TABLE>
<CAPTION>
                                                                                      Period from
                                                                                     March 5, 1996
                                                                                  (date of inception)
                                                            Year ended December 31,  to December 31,
                                                            ----------------------   --------------
                                                               1998         1997        1996
                                                             -------      -------      -------
<S>                                                        <C>          <C>          <C>
Cash flows from operating activities:
Net loss ...............................................   $(281,471)   $(138,054)   $ (13,633)
Adjustments to reconcile net loss to net cash used in
  operating activities:
      Depreciation and amortization ....................      14,193        6,454          164
      Amortization of discount on long-term debt .......      25,355         --           --
      Amortization of debt issue costs .................       2,525           59         --
      Other noncurrent liabilities .....................         956          897          293
      Stock-based and other noncash compensation .......      32,164       89,111        4,071
      Other ............................................        (495)        (626)        (151)
      Changes in current assets and current liabilities:
         Prepaid expenses and other current assets .....      (2,527)      (8,496)        (439)
         Accounts payable ..............................      32,671       13,575        3,002
         Accrued interest and other ....................      14,552        3,820          647
                                                           ---------    ---------    ---------
           Net cash used in operating activities .......    (162,077)     (33,260)      (6,046)
                                                           ---------    ---------    ---------
Cash flows from investing activities:
    Restricted cash and investments ....................      29,016      (95,075)        --
    Purchase of property and equipment .................     (97,188)      (9,960)      (3,709)
    Acquisition and other investments ..................        --        (10,720)        --
                                                           ---------    ---------    ---------
      Net cash used in investing activities ............     (68,172)    (115,755)      (3,709)
                                                           ---------    ---------    ---------
Cash flows from financing activities:
    Proceeds from bank borrowing .......................        --         40,500        2,000
    Repayment of bank borrowing ........................        --        (42,500)        --
    Equity contribution prior to public offering .......        --         60,000         --
    Net proceeds from issuance of common stock .........         372      125,656         --
    Proceeds from long-term debt .......................     250,703      300,000         --
    Debt financing costs ...............................     (29,480)     (11,344)        --
    Member contributions ...............................        --        100,301        9,058
                                                           ---------    ---------    ---------
      Net cash provided by financing activities ........     221,595      572,613       11,058
                                                           ---------    ---------    ---------
Net (decrease) increase in cash and equivalents ........      (8,654)     423,598        1,303

Cash and cash equivalents, beginning of period .........     424,901        1,303         --
                                                           ---------    ---------    ---------
Cash and cash equivalents, end of period ...............   $ 416,247    $ 424,901    $   1,303
                                                           =========    =========    =========
SUPPLEMENTAL CASH FLOW INFORMATION:
Cash paid for interest .................................   $  39,279    $   2,450    $     875
                                                           =========    =========    =========
</TABLE>
                                      F-6

<PAGE>

                                 TELIGENT, INC.
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS


1.     THE COMPANY

         Teligent, Inc. ("Teligent" or the "Company"), is a full-service,
integrated communications company that offers small and medium-sized business
customers local, long-distance, high-speed data and dedicated Internet services
over its Digital SmartWave(TM) local networks.

         The Company was formed in September 1997, as a wholly owned subsidiary
of Teligent, L.L.C. On November 21, 1997, concurrent with an initial public
offering of the Company's Class A Common Stock, Teligent, L.L.C. merged with and
into the Company (the "Merger") with the Company as the surviving entity.
Teligent, L.L.C. was originally formed in March 1996, by Microwave Services,
Inc. ("MSI") and Digital Services Corporation ("DSC"), both of which, through
affiliates, have extensive experience in pioneering wireless telecommunications
businesses. Prior to the Merger, Nippon Telegraph and Telephone Corporation
("NTT"), through its wholly owned subsidiary NTTA&T, acquired a 5% interest in
Teligent L.L.C., and immediately after the Merger acquired an additional 7.5%
equity interest in the Company. All of Teligent, L.L.C.'s member interests were
converted into shares of common stock upon the Merger in a manner proportionate
to each member's percentage interest in Teligent, L.L.C. immediately prior to
the Merger.  

         The Company has previously been classified as a development stage
company. On October 27, 1998, the Company officially launched its communication
service offerings and began providing commercial services. As such, the Company
is no longer in the development stage.

2. SIGNIFICANT ACCOUNTING POLICIES

Consolidation
- -------------
         The consolidated financial statements include the accounts of the
Company and its subsidiaries after elimination of all significant intercompany
transactions.

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 amounts reported in the financial statements and
accompanying notes. Actual results could differ from those estimates.

Cash and Cash Equivalents
- -------------------------
         The Company considers all highly liquid investments purchased with
maturity dates of 90 days or less at the time of purchase to be cash
equivalents. Cash equivalents consist of money market fund investments and
short-term commercial paper, substantially all of which were held with one
institution. Restricted cash and investments relates to cash and securities held
exclusively to fund future interest payments and to secure letters of credit
obtained by the Company.

                                      F-7
<PAGE>

Property and Equipment
- ----------------------
         Property and equipment is recorded at cost. Depreciation and
amortization are computed on the straight-line method over the estimated useful
lives of the assets: 3-10 years for operating equipment, computer equipment, and
furniture, and the lesser of the life of the asset or the lease term for
leasehold improvements. Maintenance and repairs are charged to expense when
incurred.

         The amounts included in property and equipment are as follows as of
December 31 (in thousands):

<TABLE>
<CAPTION>
                                                             December 31,
                                                           1998            1997
                                                           ----            ----
     <S>                                               <C>            <C>
     Operating equipment .........................     $  99,153      $   4,816
     Computer equipment ..........................        38,057          2,105
     Furniture and leasehold improvements ........        11,849          2,072
     Undeployed equipment ........................        48,211          5,178
                                                       ---------      ---------
                                                         197,270         14,171
     Accumulated depreciation ....................       (16,544)        (5,985)
                                                       ---------      ---------
                                                       $ 180,726      $   8,186
                                                       =========      =========
</TABLE>

         During the year ended December 31, 1998, the Company incurred capital
expenditures of $183.1 million, of which approximately $85.9 million was
accrued, and is not reflected in the accompanying consolidated statement of cash
flows.

Long-Lived Assets
- -----------------
         In accordance with Statement of Financial Accounting Standards ("SFAS")
No. 121, "Accounting for the Impairment of Long-Lived Assets and for Long-Lived
Assets to be Disposed Of", management periodically reviews, if impairment
indicators exist, the carrying value and lives of property and equipment and
intangible assets based on expected future cash flows.












                                      F-8

<PAGE>

Intangible Assets
- -----------------
         Intangible assets and their respective amortization lives are as
follows as of December 31 (in thousands):

<TABLE>
<CAPTION>
                                                 1998         1997      Years
                                                 ----         ----      -----
<S>                                           <C>           <C>         <C>
Fixed wireless licenses ....................  $ 51,813      $ 49,809    15
Debt financing costs .......................    38,820        11,344    8-10
                                              --------      --------
                                                90,633        61,153
Accumulated amortization ...................    (6,776)         (799)
                                              --------      --------
                                              $ 83,857      $ 60,354
                                              ========      ========
</TABLE>

         Fixed wireless licenses represent the direct costs of obtaining such
licenses, including $41.6 million acquired from FirstMark Communications, Inc.
("FirstMark", see Note 8). Debt financing costs represent fees and other costs
incurred in connection with the Existing Credit Facility (see note 4) and the 
issuance of long-term debt. Debt financing costs are amortized to interest 
expense over the term of the related debt.  Amortization of fixed wireless 
licenses was approximately $3.5 million and $0.8 million for the years ended 
December 31, 1998 and 1997, respectively, and is included in depreciation and
amortization expense in the accompanying consolidated statements of operations.

Income Taxes
- ------------
         The Company uses the liability method of accounting for income taxes.
Deferred income taxes result from temporary differences between the tax basis of
assets and liabilities and the basis reported in the financial statements.

Revenue Recognition
- -------------------
         Revenue from providing communications services is recognized when
services are rendered based on usage of the Company's exchange networks and
facilities.

Advertising Costs
- -----------------
         Costs related to advertising are expensed when the advertising occurs.
Advertising expense was approximately $14.1 million in 1998, and $0 in 1997 and
for the period March 5, 1996 (date of inception) to December 31, 1996.








                                      F-9
<PAGE>

Net Loss Per Share
- ------------------
         During 1997, the Company adopted the provisions of Statement of
Financial Accounting Standards ("SFAS") No. 128, "Earnings Per Share", which
requires the Company to present basic and fully diluted earnings per share for
all years presented. For the periods prior to 1998, the Company's net loss per
share calculation (basic and fully diluted), is based upon the number of common
shares outstanding immediately prior to the initial public offering, as if
outstanding for all periods presented similar to a stock split, plus the
weighted average common shares issued subsequent to the initial public offering.
The Company's 1998 net loss per share calculation (basic and fully diluted) is
based on the weighted average common shares outstanding. There are no
reconciling items in the numerator or denominator of the Company's net loss per
share calculation. Employee stock options have been excluded from the net loss
per share calculation because their effect would be anti-dilutive.

Stock-Based Compensation
- ------------------------
         SFAS No. 123, "Accounting for Stock-Based Compensation" ("SFAS No.
123") established a fair value method of accounting for employee stock options
and similar equity instruments. The fair value method requires compensation cost
to be measured at the grant date, based on the value of the award, and
recognized over the service period. SFAS No. 123 allows companies to either
account for stock-based compensation under the provisions of SFAS No. 123 or
under the provisions of APB No. 25, "Accounting for Stock Issued to Employees"
("APB No. 25"). The Company has elected to account for its stock-based
compensation in accordance with the provisions of APB No. 25 and has provided
pro forma disclosures of net loss as if the fair value method had been adopted.

Comprehensive Income
- --------------------
         Effective January 1, 1998, the Company adopted SFAS No. 130, "Reporting
of Comprehensive Income" ("SFAS No. 130"). SFAS No. 130 establishes standards
for the display of comprehensive income and its components in a full set of
financial statements. Comprehensive income includes all changes in equity during
a period except those resulting from the issuance of shares of stock and
distributions to shareholders. There were no differences between net loss and
comprehensive loss.

Business Segments
- -----------------
         In June 1997, the Financial Accounting Standards Board issued SFAS No.
131, "Disclosures About Segments of an Enterprise and Related Information"
("SFAS No. 131"). SFAS No. 131 changes the way public companies report segment
information in annual financial statements and also requires those companies to
report selected segment information in interim financial reports to
stockholders. It also establishes standards for related disclosures about
products and services, geographic areas, and major customers. Management
believes the Company's operations comprise only one segment and as such,
adoption of SFAS No. 131 does not impact the disclosures made in the Company's
financial statements.



                                      F-10
<PAGE>

Recent Pronouncements
- ---------------------
         In March 1998, the American Institute of Certified Public Accountants
("AICPA") issued Statement of Position 98-1, "Accounting for the Costs of
Computer Software Developed or Obtained for Internal Use" ("SOP 98-1"). SOP 98-1
requires internal and external costs incurred to develop internal-use computer
software during the application development stage, as well as costs to develop
or obtain software that allows for access or conversion of old data by new
systems, to be capitalized. SOP 98-1 is effective for fiscal years beginning
after December 15, 1998. The Company does not believe that its effect will be
material to the Company's reported financial position or results of operations.

         In April, 1998, the AICPA issued Statement of Position 98-5, "Reporting
on the Costs of Start-Up Activities" ("SOP 98-5"). This statement requires that
the costs of start-up activities be expensed as incurred, including presenting
the cumulative effect of a change in accounting principle upon adoption of SOP
98-5. Due to the nature of the Company's operations since inception on March 5,
1996, the Company has historically expensed all start-up costs. The Company does
not believe that the adoption of SOP 98-5 will affect the Company's reported
financial position or results of operations.

Reclassifications
- -----------------
         Certain amounts in the prior periods' financial statements have been
reclassified to conform to the current year's presentation.

3.   CAPITAL STOCK

         The Company has authorized two classes of common stock, Class A Common
Stock and Class B Common Stock. The rights of the two classes of Common Stock
are substantially identical, except that until the number of shares held by
holders of the respective series of Class B Common Stock fall below certain
thresholds, such holders will have the right to elect directors to the Company's
Board of Directors as follows: a majority of the directors will be elected by
the holders of Series B-1 Common Stock, one director will be elected by the
holders of Series B-2 Common Stock, and one director will be elected by the
holders of Series B-3 Common Stock.

         The number of shares authorized, issued and outstanding at December 31,
1998 and 1997, for each class of stock is summarized below:

<TABLE>
<CAPTION>
                                                         Shares Issued
                               Shares                   and Outstanding
  Class       Par Value      Authorized              1998             1997
  -----       ---------      ----------              ----             ----
<S>             <C>         <C>                   <C>             <C>
A               $.01        200,000,000            8,206,392       8,156,410
Series B-1       .01         30,000,000           21,436,689      21,436,689
Series B-2       .01         25,000,000           17,206,210      17,206,210
Series B-3       .01         10,000,000            5,783,400       5,783,400

</TABLE>

                                      F-11
<PAGE>

         The Company has authorized 10,000,000 shares of Preferred Stock, par
value $.01 per share, of which none are issued and outstanding.

Initial Public Common Stock Offering
- ------------------------------------
         In November 1997, the Company completed an initial public offering of
6,325,000 shares of Common Stock at $21.50 per share (the "Equity Offering"),
raising approximately $125.7 million of net proceeds, after deducting
approximately $10.3 million of offering expenses.

Company Appreciation Rights and Appreciation Units
- --------------------------------------------------
         On September 1, 1996, Teligent, L.L.C. granted six separate Company
Appreciation Rights ("CARs") to an executive officer of the Company (the
"Executive") pursuant to an employment agreement dated September 1, 1996 (the
"Employment Agreement"). For each CAR, the Executive was entitled to receive a
percentage of the excess of the Company's fair market value, as defined, over
the target value for the CAR, as adjusted. The CARs vested over a period of six 
years. Also during 1996, an aggregate of 1,600,000 appreciation units (the 
"Appreciation Units") were granted to certain employees and directors of the 
Company.

Conversion of CARs and Appreciation Units into Stock Options
- ------------------------------------------------------------
         Upon consummation of the Equity Offering, all outstanding CARs and
Appreciation Units were converted (the "Conversion") into options (the
"Conversion Options") to purchase 12,480,779 shares of Class A Common Stock at
exercise prices ranging from $3.35 to $46.00 per share, representing the
intrinsic value of the original CARs and Appreciation Units. In connection with
the issuance of these options, the Company will recognize up to $185.2 million
of compensation expense over the vesting period of the options. The Company has
recognized $112.2 million of stock-based compensation expense related to the
Conversion Options for the period from March 5, 1996 (date of inception) to
December 31, 1998, and will recognize additional expense not to exceed $73.1
million through September 1, 2002, as follows: $25.2 million per year through
2000, $20.7 million in 2001 and $2.0 million in 2002.

Executive Employment Agreement
- ------------------------------
         The Executive's Employment Agreement provides for, among other things,
a forgivable loan of $15,000,000 with a five-year term, at an interest rate of
6.53% per year, which was advanced to the Executive from certain stockholders of
the Company. Those stockholders assigned their rights to the loans to the
Company and, as such, the loans are recorded as a component of other assets in
the accompanying balance sheets. The Employment Agreement also provides in 
certain circumstances for a payment of $5,000,000 on the fifth anniversary of 
the Executive's employment, or earlier in certain circumstances. The Company 
accrues the present value of the payment due over the expected service period 
of five years.





                                      F-12
<PAGE>

Other Noncash Compensation
- --------------------------
         Certain of the Company's executive officers have received loans that,
in the aggregate, totaled approximately $3.3 million. The loans bear interest at
rates ranging from 0% to 6.54%, with principal and accrued interest due
generally within three years from the date of the loan. Each of the loans
provides for the forgiveness of the principal balance and accrued interest,
subject to the executive's continued employment with the Company. The loans are
being amortized on a straight line basis over the life of the loans, and are
included in stock-based and other noncash compensation expense in the
accompanying financial statements.

1997 Stock Incentive Plan
- -------------------------
         The Company maintains the Teligent, Inc. 1997 Stock Incentive Plan (the
"1997 Plan"). The 1997 Plan authorizes options to purchase an aggregate maximum
of 14,729,125 shares of the Company's Class A Common Stock, including the
options converted from the CARs and Appreciation Units. The exercise price of
options granted, as determined by the Company's Compensation Committee,
approximates fair value. Generally, all options granted under the 1997 Plan vest
over a period of five years and expire ten years from the date of grant.

         The Company applies the provisions of APB No. 25 in accounting for its
stock-based compensation. Had compensation expense been determined in accordance
with SFAS No. 123, the Company's net loss for the years ended December 31, 1998
and 1997, and the period from March 5, 1996 (date of inception) to December 31,
1996 would have been $324.4 million, $161.2 million, and $12.5 million, or
$6.16, $3.43, and $0.27 per share, respectively. Options arising from the
conversion of CARs and Appreciation Units have been valued based on the number
and exercise price of the options issued upon conversion. The weighted average
fair value of options granted was $21.66, $18.57 and $14.04 in 1998, 1997 and
1996, respectively, using the Black-Scholes option pricing model with the
following assumptions: dividend yield 0%, risk free rate interest rate of 5.0%
in 1998, 6.6% in 1997 and 7.0% for the period from March 5, 1996 (date of
inception) to December 31, 1996, an expected life of 10 years, and an expected
volatility of .648 in 1998, .50 in 1997 and .34 for the period from March 5,
1996 (date of inception) to December 31, 1996.

















                                      F-13
<PAGE>
         Option activity for 1998 and 1997 is set forth below:

<TABLE>
<CAPTION>
                                                 Weighted-             Weighted-
                                                  Average               Average
                                                 Exercise              Exercise
Year Ended December 31,                1998       Price       1997      Price
- -------------------------------------------------------------------------------
<S>                                  <C>         <C>       <C>          <C>
Outstanding, beginning of period     12,810,685  $10.00         -       $  -
Converted from Appreciation Units          -        -      6,471,047      7.07
Converted from CARs                        -        -      6,009,732     12.41
Granted                               2,084,714   28.43      380,450     22.18
Canceled                               (194,631)  20.52      (50,544)    12.94
Exercised                               (49,982)   7.44         -          -
- ------------------------------------------------------------------------------
   Outstanding, end of period        14,650,786  $12.32    12,810,685   $10.00
==============================================================================
</TABLE>
                                      
         Options outstanding and exercisable by price range are as follows:

<TABLE>
<CAPTION>
                          Options Outstanding             Options Exercisable
                          -------------------             -------------------
                                Weighted-
                                 Average    Weighted-                 Weighted-
                  Outstanding   Remaining    Average    Exercisable    Average
   Range of          as of        Life      Exercise      as of       Exercise
Exercise Prices    12/31/98    (in years)     Price     12/31/98       Price
- ------------------------------------------------------------------------------
<S>               <C>             <C>       <C>         <C>            <C>
$ 3.35 -  5.00    2,003,244       7.7       $ 3.77      2,003,244      $ 3.77
  5.01 - 10.00    8,905,015       8.0         6.69      1,599,216        6.54
 10.01 - 15.00      402,649       8.5        13.38         82,329       13.38
 15.01 - 20.00            0       0.0         0.00              0        0.00
 20.01 - 25.00      809,390       9.0        21.98        138,710       21.81
 25.01 - 30.00    1,031,660       9.5        27.48            820       25.51
 30.01 - 35.00      497,206       9.4        31.72              0        0.00
 35.01 - 45.00            0       0.0         0.00              0        0.00
 45.01 - 50.00    1,001,622       7.7        46.00              0        0.00
                  ------------------------------------------------------------
                  14,650,786      8.1       $12.32      3,824,319      $ 5.79
                  ============================================================
</TABLE>








                                      F-14
<PAGE>
4.   LONG-TERM DEBT

Senior Notes Offering
- ---------------------
         In November 1997, the Company issued $300 million of 11 1/2% Senior
Notes due 2007 (the "Senior Notes"). The Company used approximately $93.9
million of the net proceeds of this offering to purchase a portfolio of U.S.
Treasury securities which are classified as restricted cash and investments on
the balance sheet, and have been pledged as collateral for the payment of
interest on the Senior Notes through December 1, 2000. Interest on the Senior
Notes accrues at a rate of 11 1/2% per annum and is payable semi-annually on
June 1 and December 1, commencing June 1, 1998.

         On or after December 1, 2002, the Notes will be redeemable at the
option of the Company, in whole at any time or in part from time to time, at the
following prices (expressed in percentages of the principal amount thereof):

                          Year                             Percentage
                          ----                             ----------
                          2002                               105.750%
                          2003                               103.833
                          2004                               101.917
                          2005 and thereafter                100.000

         Upon the occurrence of a change in control, as defined in the Senior
Notes agreement, each holder of the Senior Notes will have the right to require
the Company to repurchase all or any part of such holder's Senior Notes at a
purchase price in cash equal to 101% of the principal amount thereof on any
change of control payment date, plus accrued and unpaid interest, if any, to
such change of control payment date.

Senior Discount Notes Offering
- ------------------------------
         On February 20, 1998, the Company completed an offering (the "Discount
Notes Offering") of $440 million 11 1/2% Senior Discount Notes due 2008 (the
"Senior Discount Notes"). The Company received approximately $243.1 in million
net proceeds from the Discount Notes Offering, after deductions for offering
expenses of approximately $7.6 million. Under an exchange offer which commenced
on July 10, 1998 and expired on August 13, 1998 (the "Exchange Offer"), all
outstanding Senior Discount Notes were exchanged for 11 1/2% Series B Discount
Notes due 2008 (the "New Discount Notes") which have been registered under the
Securities Act of 1933, as amended. The New Discount Notes are identical in all
material respects to the Senior Discount Notes.
  
         On or after March 1, 2003, the New Discount Notes will be redeemable at
the option of the Company, in whole at any time or in part from time to time, at
the following prices (expressed in percentages of the principal amount thereof).

                          Year                               Percentage
                          ----                               ----------
                          2003                               105.750%
                          2004                               103.833
                          2005                               101.917
                          2006 and thereafter                100.000


                                      F-15
<PAGE>

         Upon the occurrence of a change in control, as defined in the New
Discount Notes agreement, each holder of the Senior Notes will have the right to
require the Company to repurchase all or any part of such holder's Senior Notes
at a purchase price in cash equal to 101% of the principal amount thereof on any
change of control payment date, plus accrued and unpaid interest, if any, to
such change of control payment date.

Existing Credit Facility
- ------------------------
         On July 2, 1998, the Company entered into a credit agreement (the "Bank
Credit Agreement") with certain lenders, providing for facilities up to an 
aggregate of $800 million (the "Existing Credit Facility"). The Existing Credit
Facility will be used primarily for the purchase of telecommunications
equipment, software and services, and is also available for working capital and
general corporate purposes. Availability of funds under the Existing Credit
Facility is subject to certain conditions as defined in the Bank Credit 
Agreement. The Company's obligations under the Bank Credit Agreement are secured
by substantially all of its assets and certain of its subsidiaries' assets.

         The Existing Credit Facility is structured into three separate tranches
consisting of a term loan facility, a delayed draw term loan facility and a 
revolving credit facility.  The Company has the ability to borrow funds over the
next four years, (other than with respect to the delayed draw facility which is
scheduled to expire on July 1, 1999 subject to extension) with a final maturity
of eight years. Interest accrues on outstanding borrowings based on a floating
rate tied to the prevailing LIBOR rate or an alternate base rate, and adjusts
based on the attainment of certain key revenue and leverage benchmarks. The
Company incurred commitment and other fees in connection with obtaining the 
Existing Credit Facility totaling $19.9 million, which is being amortized to 
interest expense on a straight line basis over eight years. As of December 31, 
1998 the Company had no outstanding loan balance under the Existing Credit
Facility. The Existing Credit Facility contains certain financial and other
covenants that restrict, among other things, the Company's ability to (a) incur
or create additional debt, (b) enter into mergers or consolidations, (c) dispose
a significant amount of assets, (d) pay dividends, or (e) change the nature of
its business.  The amounts outstanding under the Existing Credit Facility are 
subject to mandatory prepayments in certain circumstances.

5.    FAIR VALUE OF FINANCIAL INSTRUMENTS

         The fair value of the Company's financial instruments classified as
current assets or liabilities, including cash and cash equivalents, restricted
cash and investments and other assets, accounts payable and accrued expenses,
approximate carrying value, principally because of the short maturity of these
items. The fair value of the Company's non-current restricted cash and
investments approximate carrying value based on their effective interest rates
compared with market interest rates. As of December 31, 1998, the estimated fair
values and carrying amounts of the Company's Senior Notes and Senior Discount
Notes are as follows (in thousands):





                                      F-16
<PAGE>

<TABLE>
<CAPTION>
                                               Fair Value       Carrying Amount
                                               ----------       ---------------
     <S>                                        <C>                <C>
     11 1/2% Senior Notes due 2007              $282,000           $300,000
     11 1/2% Senior Discount Notes due 2008     $215,256           $276,058

</TABLE>

6.   INCOME TAXES

         The Company has recorded income taxes in accordance with SFAS No. 109
for the years ended December 31, 1998 and 1997, subsequent to the Merger. The
tax effects of temporary differences are as follows, as of December 31 (in
thousands):

<TABLE>
<CAPTION>
                                                        1998              1997
                                                        ----              ----
<S>                                                  <C>              <C>
Deferred tax assets:
     Net operating loss carryforward .........       $  90,171        $   2,357
     Stock based compensation ................          38,905           29,519
     Original issue discount .................           8,651             --
     Other ...................................           4,381            3,672
                                                     ---------        ---------
        Total deferred tax assets ............         142,108           35,548
Deferred tax liability:
     Intangible assets .......................         (14,305)         (13,107)
                                                     ---------        ---------
Net deferred tax assets ......................         127,803           22,441
Valuation allowance ..........................        (127,803)         (22,441)
                                                     ---------        ---------
             Total ...........................       $    --          $    --
                                                     =========        =========
</TABLE>

         During the years ended December 31, 1998 and 1997, the Company did not
record an income tax benefit. The ultimate realization of deferred tax assets is
dependent upon the generation of future taxable income during the periods in
which those temporary differences become deductible. At December 31, 1998, the
Company had federal net operating loss carryforwards of $232.0 million and $8.4
million, which expire in 2018 and 2017, respectively.

         A reconciliation between income taxes computed using the statutory
federal income tax rate (34% for 1998 and 1997) and the effective rate, for the
years ended December 31, 1998 and 1997, is as follows:






                                      F-17
<PAGE>

<TABLE>
<CAPTION>
                                                            1998         1997
                                                           ------        -----
<S>                                                         <C>         <C>
Federal income tax benefit at statutory rate ............   (34.0)%     (34.0)%
Net change in valuation allowance .......................    37.9        14.7
Purchase accounting adjustment ..........................     --          9.5
State income taxes net of federal .......................    (4.0)        --
Operating losses recognized by Teligent L.L.C
   for which no tax benefit is available ................     --          9.7
Other ...................................................     0.1         0.1
                                                             ----        ----
                                                              --          --
                                                             ====        ====
</TABLE>

7.     RELATED PARTY TRANSACTIONS

         The Company entered into a five-year technical service agreement (the
"TSA") with a subsidiary of NTT (the "Provider"). Under the terms of the TSA,
the Provider will provide certain technical services to the Company relating to
network design and implementation. During the first two years of the TSA, which
commenced December 1, 1997, the Company is required to pay the Provider a fee in
the amount of $4.0 million per year. Payments during the remaining three years
shall be negotiated annually based on the scope of technical services to be
provided.

         Employees of the parent company of MSI performed administrative and
management services on behalf of the Company. These services were billed to the
Company for the years ended December 31, 1998 and 1997, and for the period March
5, 1996 (date of inception) through December 31, 1996, and totaled approximately
$1.1 million, $1.7 million and $1.5 million, respectively. In addition,
employees of the Company are covered under certain health and benefit plans of
the parent company of MSI. The Company is billed for their pro rata cost of
these benefits.

         Certain technical services are performed by an affiliate of DSC. The
cost of these services totaled approximately $0.6 million in 1998.

8.    FIRSTMARK ACQUISITION - 1997

         In October 1997, Teligent, L.L.C. acquired all of the outstanding stock
of FirstMark (the "FirstMark Acquisition"), for an aggregate purchase price of
approximately $42.0 million which consisted of $10.5 million in cash and a 5%
member interest in Teligent, L.L.C valued at $31.5 million. As a result of the
Merger, the sole stockholder of FirstMark received 1,831,410 shares of Teligent,
Inc. Class A Common Stock. The FirstMark Acquisition was accounted for under the
purchase method of accounting. The majority of the purchase price ($41.6
million) was allocated to the fixed wireless licenses acquired and the remaining
amount was allocated to the net assets acquired. The acquisition of FirstMark
would not have had a material impact on the Company's operating results for the
year ended December 31, 1997 and thus no pro forma information has been
disclosed herein.


                                      F-18
<PAGE>


9.   COMMITMENTS AND CONTINGENCIES

         The Company leases various operating sites, rooftops, storage, and
administrative offices under operating leases. Rent expense was approximately
$11.3 million, $2.3 million and $0.9 million for the years ended December 31,
1998 and 1997 and the period March 5, 1996 (date of inception) to December 31,
1996, respectively. Future minimum lease payments by year and in the aggregate,
are as follows at December 31, 1998 (in thousands):

                             1999                 $ 19,290
                             2000                   18,050
                             2001                   16,944
                             2002                   15,499
                             2003                   13,969
                             Thereafter             51,025
                                                  --------
                                                  $134,777
                                                  ========

10.    EMPLOYEE BENEFIT PLAN

         Employees of the Company participate in the 401(k) retirement plan of
MSI's parent company. Eligible employees may elect to contribute, on a
tax-deferred basis, up to 15% of their compensation, not to exceed annual
maximums as defined in the Internal Revenue Code. The Company matches one-half
of a participant's contribution up to 6% of the participant's compensation. The
Company's contributions to the plan were approximately $0.9 million, $0.1
million, and $0 for 1998, 1997 and for the period March 5, 1996 (date of
inception) to December 31, 1996.

11.     QUARTERLY FINANCIAL DATA (UNAUDITED)

         The following table has been prepared from the financial records of the
Company, without audit, and reflects all adjustments that are, in the opinion of
management, necessary for a fair presentation of the results of operations for
the interim periods presented (in thousands, except per share amounts).

<TABLE>
<CAPTION>

1998:                     1st Qtr    2nd Qtr        3rd Qtr     4th Qtr      Total
- -----                     -------    -------        -------    -------       -----
<S>                    <C>          <C>          <C>          <C>          <C>
Revenues ...........   $      98    $     143    $     240    $     479    $     960
Loss from operations     (34,724)     (53,032)     (68,202)     (92,739)    (248,697)
Net loss ...........     (38,558)     (59,136)     (78,545)    (105,232)    (281,471)
Net loss per share..       (0.73)       (1.12)       (1.49)       (2.00)       (5.35)







                                      F-19
<PAGE>

<CAPTION>

1997:                     1st Qtr    2nd Qtr        3rd Qtr     4th Qtr      Total
- -----                     -------    -------        -------    -------       -----
<S>                    <C>          <C>          <C>          <C>          <C>
Revenues ...........   $     635    $   1,079    $   1,200    $     397    $   3,311
Loss from operations      (6,639)     (43,504)     (27,611)     (57,683)    (135,437)
Net loss ...........      (6,763)     (43,863)     (28,200)     (59,228)    (138,054)
Net loss per share         (0.15)       (0.99)       (0.63)       (1.21)       (2.94)

</TABLE>

         The sum of the per share amounts do not equal the annual amounts
because of the changes in the weighted-average number of shares outstanding
during the year.






























                                      F-20


                                                State or Country
                                                  of Formation
                                                ------------------
FirstMark Communications, Inc.                    Delaware
Associated Communications Deutschland GmbH        Germany
Teligent License Company I, L.L.C.                Delaware
Teligent License Company II, L.L.C.               Delaware
Teligent Communications, Inc.                     Delaware
Teligent of Virginia, Inc.                        Virginia
Teligent Telecommunications, Inc.                 Delaware
Associated Communications Europe  S.a.r.l.        Germany



         We consent to the incorporation by reference in the Registration
Statement (Form S-8 No. 333-45005) pertaining to the Teligent, Inc. 1997 Stock
Incentive Plan of our report dated February 12, 1999, with respect to the
consolidated financial statements of Teligent, Inc. included in its Annual
Report on Form 10-K for the year ended December 31, 1998, filed with the
Securities and Exchange Commission.


                                                     /s/ Ernst & Young LLP


Vienna, Virginia
March 26, 1999
 


<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
         THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
CONSOLIDATED BALANCE SHEET--DECEMBER 31, 1998 AND CONSOLIDATED STATEMENT OF
OPERATIONS FOR THE YEAR ENDED DECEMBER 31, 1998 AND IS QUALIFIED IN ITS ENTIRETY
BY REFERENCE TO SUCH FINANCIAL STATEMENTS. 
</LEGEND>

       
<S>                                           <C>
<PERIOD-TYPE>                                  12-Mos
<FISCAL-YEAR-END>                              Dec-31-1998
<PERIOD-START>                                 Jan-01-1998
<PERIOD-END>                                   Dec-31-1998
<CASH>                                         416,247,000
<SECURITIES>                                             0
<RECEIVABLES>                                            0
<ALLOWANCES>                                             0
<INVENTORY>                                              0
<CURRENT-ASSETS>                               456,586,000
<PP&E>                                         197,270,000
<DEPRECIATION>                                  16,544,000
<TOTAL-ASSETS>                                 763,434,000
<CURRENT-LIABILITIES>                          154,178,000
<BONDS>                                        576,058,000
                                    0
                                              0
<COMMON>                                           526,000
<OTHER-SE>                                      30,527,000
<TOTAL-LIABILITY-AND-EQUITY>                   763,434,000
<SALES>                                                  0
<TOTAL-REVENUES>                                   960,000
<CGS>                                                    0
<TOTAL-COSTS>                                   81,044,000
<OTHER-EXPENSES>                                         0
<LOSS-PROVISION>                                         0
<INTEREST-EXPENSE>                              66,880,000
<INCOME-PRETAX>                               (281,471,000)
<INCOME-TAX>                                             0
<INCOME-CONTINUING>                           (281,471,000)
<DISCONTINUED>                                           0
<EXTRAORDINARY>                                          0
<CHANGES>                                                0
<NET-INCOME>                                  (281,471,000)
<EPS-PRIMARY>                                        (5.35)
<EPS-DILUTED>                                        (5.35)
        


</TABLE>


                                 EXHIBIT 99.1
                             FOR IMMEDIATE RELEASE
CONTACTS:
Media                      Investors
Robert W. Stewart          Michael S. Kraft
703-762-5175               703-762-5359
888-894-7812               800-981-5994


TELIGENT REPORTS 1998 FINANCIAL RESULTS, SETS OPERATING BENCHMARKS FOR 1999

         VIENNA, VA., March 1, 1999 - Following a year of rapid expansion,
Teligent, an integrated communications company, today released financial results
for the fourth quarter and year-end of 1998. The company also announced 1999
targets for revenue, buildings, customers, lines and other measures of
performance.

         "Teligent chalked up very impressive accomplishments in 1998," said
Teligent Chairman and Chief Executive Officer Alex J. Mandl. "First and
foremost, we transformed ourselves from an opportunity into an operating
company. We launched our first 15 markets during the fourth quarter, we grew to
nearly 1,500 employees, we built a sales team of 200 and we signed leases or
options for nearly 2,400 customer buildings. We also secured regulatory
authority to offer service in all of our licensed markets."

         For the year ending December 31, 1998, Teligent reported a net loss of
$281 million on revenue of approximately $1 million. Net loss for the fourth
quarter was $105 million on revenue of $480,000. Teligent's net loss for 1998
was up from $138 million reported for 1997. The fourth quarter and year-end
losses reflect the company's continuing investment in its SmartWave(TM) local
communications networks, which are in service or under construction in 37
markets throughout the country.

         Teligent reported $183 million in capital expenditures in 1998, up from
$10 million in 1997. Capital expenditures for the fourth quarter were $72
million, up from $6 million in the fourth quarter of 1997. As of December 31,
1998, the company reported fixed assets of $197 million and cash of $416
million. Last July, Teligent closed an $800 million bank credit facility, which
has not yet been utilized.

         "We ended the year in an excellent financial position, with $1.2
billion available to fund growth through 2000," said Teligent Senior Vice
President and Chief Financial Officer Abraham L. Morris.

         In addition to releasing 1998 financial results, Teligent also
announced performance benchmarks for 1999. At the end of the year, Mandl said
Teligent expects annual revenue of $35 million and negative EBITDA of $350
million. The company intends to spend $300 million on capital outlays as it
works towards its goal of launching service in a total of 40 markets by the end
of the year.

         During 1999, Teligent plans to more than double the number of customer
buildings covered by lease or option agreements, raising the total of leased or
optioned buildings to 5,000. Mandl said the company plans to grow its customer
base to 10,000 by the end of the year and install more than 75,000 lines.

         "Teligent got off to a fast start in 1998," said Teligent President and
Chief Operating Officer Kirby G. "Buddy" Pickle. "We inaugurated our first 15
markets - five more than we originally announced - during a two-month period at
the end of the year, following a year of preparation. In 1999, we intend to
continue an aggressive market roll out program, even as we penetrate deeper into
existing markets to sell service to more customers in more buildings."

         During 1998, Teligent launched service in: New York, Los Angeles,
Chicago, Houston, Dallas-Forth Worth, San Francisco-Oakland, Miami-Fort
Lauderdale, Denver, Washington DC, San Jose, San Antonio, Orlando, Jacksonville,
Tampa and Austin.

         Since January 1, Teligent has launched service in nine additional
markets: Atlanta, Boston, Philadelphia, Baltimore, Milwaukee, Richmond,
Wilmington, Del., West Palm Beach and New Orleans. Together, those 24 markets
comprise more than 400 cities and towns with a combined population of nearly 75
million and 30 percent of the nation's 54 million business lines.

         "The offer of broadband data and voice services, coupled with savings
of up to 30 percent, has proven very appealing to customers. We've been very
happy to find broad acceptance of our fixed wireless technology among both
customers and building owners," Pickle said.

         "During our first four months of commercial operations, we've proven
our ability to seamlessly blend point-to-multipoint, point-to-point and
broadband wireline technology in our integrated local communications networks.
That is a major achievement," Pickle added.

         Teligent offers small and medium-sized companies a flat monthly bill
that represents savings of up to 30 percent off the rates they pay their current
local telephone company, national long distance carrier and Internet provider.

         To qualify for the maximum discount, customers switch their existing
service - local, long distance or Internet - and sign up with Teligent for a
minimum of one year. Teligent averages several representative bills from the
customer's current carriers and deducts 30 percent. That figure becomes the
customer's new flat monthly rate. In most cases, it's that simple. Local and
Internet service are unlimited. If customers wish to increase their long
distance usage over current levels, they can purchase more service at attractive
prices.

         Teligent service also features e.magine(SM), an interactive, Web-based
business management tool that enables customers to access their billing and
account information anytime they choose.

         Many of the benefits that Teligent offers its customers - simplicity,
service, savings and speed - are the direct result of its digital SmartWave(TM)
technology. Teligent's network technology represents the marriage of the latest
advances in point-to-multipoint radio technology with proven high-frequency
radio transmission equipment and other traditional technologies, including
broadband wireline. The integration of these technologies enables Teligent to
increase its local network efficiency and significantly lower network costs.

         With its SmartWave(TM) technology, Teligent delivers service by
installing small antennas on the roofs of customer buildings. When a customer
picks up a telephone, turns on a computer or activates a videoconference, the
signal travels over inside wiring to the rooftop antenna. The customer building
antenna then relays the voice, data or video signals to a Teligent base station
antenna.

         The base station antenna gathers signals from a cluster of surrounding
customer buildings, aggregates the signals and then routes them to a Teligent
broadband switching center. At the switching center, Teligent uses ATM
(asynchronous transfer mode) switches and data routers along with Nortel DMS
switches to hand off the traffic to other networks - the public circuit-switched
voice network, the packet-switched Internet, and private data networks.

         SmartWave(TM) technology is configured to handle both voice and data
traffic with equal ease, ensuring that Teligent can handle today's huge volume
of voice traffic and at the same time is prepared for the coming data traffic
explosion.

         Based in Vienna, Va., Teligent, Inc. (NASDAQ: TGNT) is a full-service,
integrated communications company that is offering small and medium-sized
business customers local, long distance, high-speed data and dedicated Internet
services over its digital SmartWave(TM) local networks in 24 major markets.
Eventually, Teligent will expand service to 74 major metropolitan areas
throughout the United States. Teligent's offerings of regulated services are
subject to tariff approval.

For more information, visit the Teligent website at: http: www.teligent.com

Teligent is a registered trademark.

         Except for any historical information contained herein, the matters
discussed in this press release contain certain "forward-looking statements"
within the meaning of the Private Securities Litigation Reform Act of 1995 with
respect to the company's financial condition, results of operation and business.
The words "anticipate," "believe," "estimate," "expect," "plan," "intend" and
similar expressions, as they relate to the company, are intended to identify
forward-looking statements. Such statements reflect our current views with
respect to future events and are involve known and unknown risks, uncertainties
and other factors including, but not limited to, economic, key employee,
competitive, regulatory, governmental and technological factors affecting the
company's growth, operations, markets, products, services, licenses and other
factors discussed in the company's filings with the Securities and Exchange
Commission. The company cannot be sure that any of its expectations will be
realized. Factors that may cause actual results, performance or achievements of
the company, or industry results, to differ materially from those contemplated
by such forward-looking statements, include, without limitation: (1) the
company's ability to meet its existing debt service obligations and the
availability of additional funds to pursue the company's business plan; (2) the
company's pace of entry into new markets; (3) the time and expense required to
build the company's planned network; (4) the impact of changes in
telecommunication laws and regulations; (5) the company's success in gaining
regulatory approval for its products and services, when required;(6) the timely
supply of necessary equipment; (7) the intensity of competition; and (8) general
economic conditions.



                             Financial Tables Follow
<PAGE>
                                 TELIGENT, INC.
                      CONSOLIDATED STATEMENTS OF OPERATIONS
          (dollars in thousands except share and per share information)
<TABLE>
<CAPTION>
                                                      Three Months Ended
                                                        December 31,        Years Ended December 31,
                                                      1998       1997 (1)      1998       1997 (1)
                                                      ----       -------       ----       -------
<S>                                             <C>           <C>         <C>          <C>
Revenues:
   Wireless communications services .........   $      479    $       33  $      960   $       33
   Management fees and other services .......         --             364        --          3,278
                                                ----------    ----------  -----------  ----------
     Total revenues .........................          479           397         960        3,311

Costs and expenses:
   Cost of services .........................       30,559         1,911      81,044        4,785
   Sales, general and administrative expenses       47,485        17,165     122,256       38,398
   Stock-based and other noncash compensation        8,023        32,857      32,164       89,111
   Depreciation and amortization expense ....        7,151         6,147      14,193        6,454
                                                ----------    ----------  -----------  ----------
     Total costs and expenses ...............       93,218        58,080     249,657      138,748
                                                ----------    ----------  -----------  ----------

   Loss from operations .....................      (92,739)      (57,683)   (248,697)    (135,437)

Interest and other income ...................        6,870         3,137      34,106        3,242
Interest expense ............................      (19,364)       (4,682)    (66,880)      (5,859)
                                                ----------    ----------  -----------  ----------

   Net loss before provision for income taxes     (105,233)      (59,228)   (281,471)    (138,054)
Provision for income taxes ..................         --            --          --           --
                                                ----------   ----------   ----------   ----------

   Net loss .................................   $ (105,233)  $  (59,228)  $ (281,471)  $ (138,054)
                                                ==========   ==========   ==========   ==========

Basic and diluted net loss per share            $    (2.00)  $    (1.21)  $    (5.35)  $    (2.94)
                                                ==========   ==========   ==========   ==========

Weighted average common shares outstanding      52,614,428   49,007,709   52,596,573   46,950,860
                                                ==========   ==========   ==========   ==========
</TABLE>
<PAGE>

SELECTED FINANCIAL AND OTHER DATA:

<TABLE>
<CAPTION>
                                   Three Months Ended
                                     December 31,              Years ended December 31,
                                   1998         1997 (1)            1998          1997 (1)
                                  ------        --------           ------         -------
<S>                             <C>            <C>               <C>            <C>
EBITDA (2) ..................   $ (77,565)     $ (18,679)        $(202,340)     $ (39,872)
Cash used in operations .....   $ (78,955)     $ (11,920)        $(162,077)     $ (33,260)

Cash capital expenditures (3)   $ (28,129)     $  (6,243)        $ (97,188)     $  (9,960)
Accrued capital expenditures      (43,821)          --             (85,911)          --
                                ---------      ---------         ---------      ---------
   Total capital expenditures   $ (71,950)     $  (6,243)        $(183,099)     $  (9,960)
                                =========      =========         =========      =========
<CAPTION>
                                                                       December 31,
                                                                    1998          1997
                                                                  --------     --------
<S>                                                               <C>            <C>
Cash and cash equivalents                                         $416,247       $424,901
Total assets .............                                         763,434        607,380
Total stockholders' equity                                          31,053        285,146
Number of employees ......                                           1,477            221

</TABLE>

(1) Certain amounts in the 1997 financial statements have been reclassified to
    conform to the current year's presentation.

(2) EBITDA (earnings before interest, taxes, depreciation and amortization)
    excludes charges for stock-based and other noncash compensation.

(3) Represents purchases for fixed assets which have been paid or which are
    anticipated to be paid within 90 days.


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