UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                           --------------------------
                                    FORM 10-Q/A

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

For the quarterly period ended September 30, 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 of            (I.R.S. Employer Identification No.)
Incorporation or Organization)

        8065 LEESBURG PIKE
        VIENNA, VIRGINIA                              22182
(Address of Principal Executive Offices)            (Zip Code)

       Registrant's Telephone Number, Including Area Code: (703) 762-5100

         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 [_].


The number of shares  outstanding of each of the registrant's  classes of common
stock as of November 11, 1998 was as follows:

                                    Common Stock, Class A        8,178,610
                                    Common Stock, Class B       44,426,299



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                                TABLE OF CONTENTS


PART II.  OTHER INFORMATION

Item 6.   Exhibits and Reports on Form 8-K                                     3














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<PAGE>
                                 TELIGENT, INC

                                EXPLANATORY NOTE
                                   
     This form 10-Q/A amends Item 6 (Exhibits and Reports on Form 8-K) to add
the following exhibit that was inadvertantly omitted from the Company's Form
10-Q:

27.1      Financial Data Schedule for the nine months ended September 30, 1998 
          (filed only electronically with the Securities and Exchange 
          Commission).

PART II.  OTHER INFORMATION

Item 6.    Exhibits and Reports on Form 8-K
-------    --------------------------------
          (a)     Exhibits

                  Exhibit Index

          (b)     Reports on Form 8-K

                  On October 30,  1998,  the Company  filed a report on Form 8-K
                  comprising items 5 and 7. The Report,  dated October 27, 1998,
                  announced  the launch of the  Company's  services in its first
                  ten markets.













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<PAGE>


                                            SIGNATURES

Pursuant  to the  requirements  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)

Date: November 19, 1998         By: /s/ Abraham L. Morris
                                    ----------------------
                                     Abraham L. Morris
                                     Senior Vice President,
                                     Chief Financial Officer
                                      and Treasurer (Principal Financial
                                      Officer)


Date: November 19, 1998         By: /s/ Cindy L. Tallent
                                    ---------------------
                                     Cindy L. Tallent
                                     Vice President and Controller
                                     (Principal Accounting Officer)














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<PAGE>

                                                   EXHIBIT INDEX


Exhibit No.   Description of Exhibit
-----------   ----------------------
  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 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 Form of Annual Report on Form 10-K,  filed on
              March 31, 1998, and incorporated by reference herein.

  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.

 10.1         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 Form of Annual Report on Form 10-K,
              filed on March 31,1998, and incorporated herein by reference.

 10.2         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.

 27.1         Financial  Data  Schedule for the nine months ended  September 30,
              1998 (filed only  electronically  with the Securities and Exchange
              Commission).

99.1          Press release of Teligent, Inc. dated November 11, 1998
              (filed herein).
                                       









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