UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 20549

                         FORM 10-KSB/A AMENDMENT NO. 3

(Mark One)

[X]   Annual report pursuant to Section 13 or 15 (d) of the Securities Exchange
      Act of 1934

      For the fiscal year ended December 31, 2005

                                       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 0-19437

                    CELLULAR TECHNICAL SERVICES COMPANY, INC.
           -----------------------------------------------------------
           (Name of Small Business Issuer as Specified in Its Charter)

               Delaware                                 11-2962080
--------------------------------------   ---------------------------------------
   (State or Other Jurisdiction of         (I.R.S. Employer Identification No.)
    Incorporation or Organization)

           20 East Sunrise Highway, Suite 200, Valley Stream, NY 11581
           -----------------------------------------------------------
               (Address of Principal Executive Offices) (Zip Code)

         Issuer's Telephone Number, Including Area Code: (516) 568-0100

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

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

                          Common Stock, $.001 par value
                          -----------------------------
                                (Title of Class)

Check whether the issuer is not required to file reports pursuant to Section 13
or 15(d) of the Exchange Act [ ]

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

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

Indicate by check mark whether the Registrant is a shell company (as defined in
Rule 12b-2 of the Exchange Act) Yes [X] No [ ]

The Issuer had no revenue for the fiscal year ended December 31, 2005.

As of October 20, 2006 there were 4,586,757 shares of Common Stock, $.001 par
value outstanding.

As of October 20, 2006 the aggregate market value of the Registrant's Common
Stock, $.001 par value, held by non-affiliates was approximately $8.5 million.
The aggregate market value of the Company's stock was calculated using $1.85,
the closing price for its Common Stock on October 20, 2006 as reported on the
over-the-counter bulletin board.

       Transitional Small Business Disclosure Format Yes [ ] No [X]








                                  INTRODUCTION

         Cellular Technical Services Company, Inc. is filing this Amendment on
Form 10-KSB/A to amend its Annual Report on Form 10-KSB for the fiscal year
ended December 31, 2005, as filed with the Securities and Exchange Commission
(the "SEC") on March 31, 2006, as amended by a filing with the SEC on April 10,
2006 and further amended by a filing on October 12, 2006 (collectively, the
"Original Filing"). The purpose of this Amendment is to amend in its entirety
Item 11 of the Original Filing. This Amendment does not otherwise update
information in the Original Filing to reflect facts or events occurring
subsequent to the date of the Original Filing.




                                                                              1








Item 11. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT AND
RELATED STOCKHOLDER MATTERS.

The following table and footnotes thereto set forth, as of September 26, 2006,
information with respect to the beneficial ownership of the Company's Common
Stock by: (i) each person known by the Company to beneficially own more than 5%
of the outstanding shares of Common Stock; (ii) each director of the Company;
(iii) the Named Executive Officers; and (iv) all current directors and executive
officers of the Company as a group.



                                            Amount And Nature of
Name of Beneficial Owners                  Beneficial Ownership(1)     Percent of Outstanding Shares
-------------------------                  -----------------------     -----------------------------
                                                                           
Phillip Frost                                    1,400,000(2)                    30.5%
Stephen Katz                                       330,753(3)                     7.2%
Jane Hsiao                                         200,000                        4.4%
Richard Pfenniger                                  100,000                        2.2%
Lawrence J. Schoenberg                              76,850(4)                     1.7%
Joshua J. Angel                                     55,850(5)                     1.2%
Kenneth Block                                        5,000                         *
All directors and executive officers
as a group (7 persons)                           2,168,453(6)                    47.3%

*Less than 1%



1.       Unless otherwise indicated, each person or group has sole voting and
         investment power with respect to such shares. For purposes of this
         table, a person or group of persons is deemed to have "beneficial
         ownership" of any shares which such person or group has the right to
         acquire within 60 days. For purposes of computing the percent of
         outstanding shares held by each person or group named above as of a
         given date, any shares which such person or group has the right to so
         acquire are deemed to be outstanding, but are not deemed to be
         outstanding for the purpose of computing the percentage owned by any
         other person or group.

2.       These shares are held by Frost Gamma Investments Trust ("Frost Trust"),
         of which Dr. Frost is the trustee and Frost Gamma, Limited Partnership
         is the sole and exclusive beneficiary. Dr. Frost is the sole limited
         partner of Frost Gamma, Limited Partnership. The general partner of
         Frost Gamma, Limited Partnership is Frost Gamma, Inc. and the sole
         shareholder of Frost Gamma, Inc.

                                                                              2






         is Frost-Nevada Corporation. Dr. Frost is also the sole shareholder of
         Frost Nevada Corporation. As such, Dr. Frost may be deemed the
         beneficial owner of all shares owned by the Frost Trust by virtue of
         his power to vote or direct the vote of such shares or to dispose or
         direct the disposition of such shares owned by the Frost Trust.

3.       Includes 41,273 shares held by a partnership controlled by Mr. Katz.
         Also includes 110,650 shares subject to currently exercisable options,
         23,000 of which are at prices lower than the market price of the
         Company's Common Stock.

4.       Includes 40,600 shares subject to currently exercisable options,
         17,400 of which are at prices lower than the market price of the
         Company's Common Stock.

5.       Includes 20,600 shares subject to currently exercisable options,
         17,400 of which are at prices lower than the market price of the
         Company's Common Stock.

6.       Includes an aggregate of 171,850 shares subject to currently
         exercisable options, 57,800 of which are at prices lower than the
         market price of the Company's Common Stock and 41,273 shares held by a
         partnership controlled by Mr. Katz.

Equity Compensation Plan Information

The following table provides information about the Company's equity compensation
plans as of December 31, 2005.



--------------------------------------------------------------------------------------------------------------------------
                                              A                             B                             C
--------------------------------------------------------------------------------------------------------------------------
        Plan Category            Number of securities to be     Weighted average exercise        Number of securities
                                   issued upon exercise of        price of outstanding         remaining available for
                                    outstanding options,          options, warrants and      future issuance under equity
                                     warrants and rights            rights securities       compensation plans (excluding
                                                                 reflected in column (A)       securities reflected in
                                                                                                     column (A))
--------------------------------------------------------------------------------------------------------------------------
                                                                                               
Equity compensation plans                174,600                     $1,419,959                         0
approved by security holders
--------------------------------------------------------------------------------------------------------------------------
Equity compensation plans not              -0-                           0                              0
approved by security holders

       Total:                            174,600                     $1,419,959                         0
--------------------------------------------------------------------------------------------------------------------------



                                                                               3






Item 13. Exhibits:

 3.1  Restated Certificate of Incorporation of the Registrant, as amended (1)
 3.2  Amendment to Restated Certificate of Incorporation of the Registrant (5)
 3.3  By-Laws of the Registrant (1)
 3.4  Amendment I to By-Laws of the Registrant, dated October 28, 1993 (3)
 4.1  Specimen Certificate for Common Stock of Registrant (1)
 7.1  1991 Qualified Stock Option Plan (as amended as of November 30, 1993)
      (+)(2)
 7.2  Amendment to 1991 Qualified Stock Option Plan dated July 11, 1996 (+)(5)
 7.3  1991 Non-Qualified Stock Option Plan (as amended as of November 30, 1993)
      (+)(2)
 7.4  Amendment to 1991 Non-Qualified Stock Option Plan dated July 11, 1996
      (+)(5)
 7.5  1993 Non-Employee Director Stock Option Plan (+)(3)
 7.6  Amendment to 1993 Non-Employee Director Stock Option Plan dated July 11,
      1996 (+)(5)
 7.7  Amendment to 1993 Non-Employee Director Stock Option Plan dated April 22,
      1999 (+)(6)
 7.8  1996 Stock Option Plan (+)(4)
 7.9  Amendment to 1996 Stock Option Plan dated December 14, 1998 (+)(4)
 7.10 2002 Stock Incentive Plan+ (7)
14.1  Code of Ethics Pursuant to Section 406 of the Sarbanes-Oxley Act of 2002
      (8)
21.1  Subsidiaries of the Registrant (9)

                                                                              4






23.1  Consent of Stonefield Josephson, Inc., independent auditors (9)
31.1  Rule 13a-14(a)/15d-14(a) Certification by CFO (10)
31.2  Rule 13a-14(a)/15d-14(a) Certification by CEO (10)
32.1  Section 1350 Certifications (10)

 (+)  Management contract or compensation plan or arrangement required to be
      noted as provided in Item 14(a)(3).
 (1)  Incorporated by reference to Registration Statement on Form S-1 declared
      effective on August 6, 1991 (File No. 33-41176).
 (2)  Incorporated by reference to Registration Statement on Form S-8 filed on
      March 7, 1994 (File No. 33-76128).
 (3)  Incorporated by reference to Annual Report on Form 10-K filed on March 30,
      1994 for the year ended December 31, 1993 (File No. 0-19437).
 (4)  Incorporated by reference to Quarterly Report on Form 10-Q filed on August
      8, 1995 for the quarter ended June 30, 1995 (File No. 0-19437).
 (5)  Incorporated by reference to Annual Report on Form 10-K filed on March 30,
      1999 for the year ended December 31, 1998 (File No. 0-19437).
 (6)  Incorporated by reference to Annual Report on Form 10-K filed on March 29,
      2000 for the year ended December 31, 1999 (File No. 0-19437).
 (7)  Incorporated by reference to Proxy Statement filed April 23, 2005 (File
      No.0-19437).
 (8)  Incorporated by reference to Annual Report on Form 10-K filed on March 30,
      2004 for the year ended December 31, 2003 (File No. 0-19437).
 (9)  Incorporated by reference to Annual Report on Form 10-KSB filed on
      March 31, 2006 for the year ended December 31, 2005 (file No. 0-19437)
(10)  Filed herewith.




                                                                              5





                                   SIGNATURES

      In accordance with Section 13 or 15(d) of the Exchange Act, the registrant
caused this amended report to be signed on its behalf by the undersigned,
thereunto duly authorized.

                                        Cellular Technical Service Company, Inc.

                                          Registrant

                                          By: /s/ Stephen Katz
                                              ---------------------------------

                                          Stephen Katz, Chairman of the Board of
                                          Directors and Chief Executive Officer

                                          Date:  October 23, 2006


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