SECURITIES AND EXCHANGE COMMISSION

                              Washington, DC. 20549

                                    FORM 10-Q

                Quarterly Report Pursuant to Section 13 or 15 (d)
                     of the Securities Exchange Act of 1934

For the quarterly period ended                  Commission File Number  0-19437
March 31, 2002

                    CELLULAR TECHNICAL SERVICES COMPANY, INC.
             ------------------------------------------------------
             (Exact Name of Registrant as Specified in Its Charter)

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

            2815 Second Avenue, Suite 100, Seattle, Washington 98121
            --------------------------------------------------------
               (Address of Principal Executive Offices) (Zip Code)

       Registrant's telephone number, including area code: (206) 443-6400

                                 Not Applicable
                                 --------------
      (Former name, former address and former fiscal year, if changed since
                                  last report.)

         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 the
filing requirements for the past 90 days. Yes X   No
                                             ---    ---

         2,291,770 Common Shares were outstanding as of May 15, 2002.


                                       1








                    CELLULAR TECHNICAL SERVICES COMPANY, INC.

                         TABLE OF CONTENTS FOR FORM 10-Q


                                                                                                     
PART I.  FINANCIAL INFORMATION

Item 1.   Financial Statements................................................................................3

Item 2.   Management's Discussion and Analysis of Financial Condition and Results of Operations...............9

Item 3.   Quantitative and Qualitative Disclosures about Market Risk.........................................13


PART II.  OTHER INFORMATION..................................................................................14

Item 1.   Legal Proceedings..................................................................................14

Item 6.   Exhibits and Reports on Form 8-K...................................................................14



                                       2









                   CELLULAR TECHNICAL SERVICES COMPANY, INC..
                          PART I. FINANCIAL INFORMATION

Item 1.           Financial Statements

                      CONDENSED CONSOLIDATED BALANCE SHEETS
                 (in 000's, except share and per share amounts)
                                   (unaudited)



                                                                                        March 31,     December 31,
                                                                                          2002            2001
                                                                                        ---------     ------------
                                     ASSETS
                                                                                               
CURRENT ASSETS
   Cash and cash equivalents                                                             $  5,267         $  6,353
   Accounts receivable, net of reserves of $254 at March 31, 2002 and $259 at                 468              529
      December 31, 2001
   Employee receivable, net of reserves of $13 at March 31, 2002 and December 31,              10               16
      2001
   Inventories                                                                                473              531
   Prepaid expenses, deposits and other current assets                                        450              205
                                                                                         --------         --------
     Total Current Assets                                                                   6,668            7,634

PROPERTY AND EQUIPMENT, net                                                                   415              477

LONG-TERM DEPOSIT                                                                              25               25

GOODWILL                                                                                       --              100

LONG-TERM INVESTMENT                                                                        1,754            1,754
                                                                                         --------         --------
TOTAL ASSETS                                                                             $  8,862         $  9,990
                                                                                         ========         ========
                      LIABILITIES AND STOCKHOLDERS' EQUITY

CURRENT LIABILITIES
   Accounts payable and accrued liabilities                                              $    691         $    847
   Payroll related liabilities                                                                191              180
   Customers' deposits and deferred revenue                                                    84               84
                                                                                         --------         --------
     Total Current Liabilities                                                                966            1,111

STOCKHOLDERS' EQUITY
   Preferred Stock, $0.01 par value per share, 5,000 shares
     authorized, none issued and outstanding                                                   --               --
   Common Stock, $0.001 par value per share, 30,000 shares
     authorized, 2,292 shares issued and outstanding at
     March 31, 2002 and at December 31, 2001                                                   23               23
   Additional paid-in capital                                                              29,976           29,976
   Accumulated Deficit                                                                    (22,103)         (21,120)
                                                                                         --------         --------
     Total Stockholders' Equity                                                             7,896            8,879
                                                                                         --------         --------
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY                                               $  8,862         $  9,990
                                                                                         ========         ========



   The accompanying notes are an integral part of these financial statements.


                                       3








                    CELLULAR TECHNICAL SERVICES COMPANY, INC.
                 CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
                      (in 000's, except per share amounts)
                                   (unaudited)



                                                                    Three Months Ended
                                                                         March 31,
                                                                         --------
                                                                     2002         2001
                                                                    ------      -------
                                                                        
REVENUES
  Phonecards                                                        $2,358       $4,156
  Services and Systems                                                  --        1,405
                                                                    ------       ------
Total Revenues                                                       2,358        5,561

COSTS AND EXPENSES
  Cost of phonecards                                                 2,271        3,967
  Cost of services and systems                                          --          387
  Sales and marketing                                                  291          406
  General and administrative                                           307          442
  Research and development                                             404          491
                                                                    ------       ------
Total Costs and Expenses                                             3,273        5,693
                                                                    ------       ------

LOSS FROM OPERATIONS                                                  (915)        (132)

OTHER INCOME, net                                                        3           24

INTEREST INCOME, net                                                    29           60
                                                                    ------       ------
LOSS BEFORE INCOME TAXES                                              (883)         (48)

PROVISION FOR INCOME TAXES                                              --           (2)
                                                                    ------       ------

LOSS BEFORE THE EFFECT OF A CHANGE IN
   ACCOUNTING PRINCIPLE                                             $ (883)      $  (50)

CUMULATIVE EFFECT OF A CHANGE IN
   ACCOUNTING PRINCIPLE                                               (100)          --
                                                                    ------       ------
NET LOSS                                                            $ (983)      $  (50)
                                                                    ------       ------

BASIC AND DILUTED SHARE DATA:

  Loss before the effect of a change in accounting principle        $(0.39)      $(0.02)

  Cumulative effect of a change in accounting principle              (0.04)          --
                                                                    ------       ------
  Net Loss                                                          $(0.43)      $(0.02)
                                                                    ======       ======

WEIGHTED AVERAGE SHARES OUTSTANDING:

     Basic and diluted                                               2,292        2,292




   The accompanying notes are an integral part of these financial statements.


                                       4







                    CELLULAR TECHNICAL SERVICES COMPANY, INC.

                 CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
                                   (in 000's)
                                   (unaudited)



                                                                                     Three Months Ended
                                                                                           March 31,
                                                                                     -------------------
                                                                                      2002         2001
                                                                                     -------      ------
                                                                                          
OPERATING ACTIVITIES
   Net loss                                                                          $  (983)     $  (50)

   Adjustments to reconcile net loss to net cash provided by (used in) operating
     activities:
       Depreciation and amortization of property and equipment                            62         130
       Impairment writeoff of goodwill                                                   100          --
       Amortization of goodwill                                                           --           7
       Gain on disposal of assets                                                         --         (25)
       Changes in operating assets and liabilities:
         Decrease (increase) in accounts receivable, net                                  61        (132)
         Decrease in employee receivable, net                                              6          12
         Decrease in inventories                                                          58          63
         Decrease (increase) in prepaid expenses and deposits                           (245)         17
         Increase (decrease) in accounts payable and accrued liabilities                (156)         75
         Increase (decrease) in payroll related liabilities                               11        (353)
         Increase in deferred revenue and customers' deposits                             --       1,447
                                                                                     -------      ------

NET CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES                                   (1,086)      1,191

INVESTING ACTIVITIES
   Purchase of property and equipment                                                     --         (31)
   Proceeds from sale of assets                                                           --          39
                                                                                     -------      ------
NET CASH PROVIDED BY (USED IN) INVESTING ACTIVITIES                                       --           8
                                                                                     -------      ------

NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS                                  (1,086)      1,199

CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD                                       6,353       4,529
                                                                                     -------      ------
CASH AND CASH EQUIVALENTS AT END OF PERIOD                                           $ 5,267      $5,728
                                                                                     =======      ======



   The accompanying notes are an integral part of these financial statements.


                                       5








                    CELLULAR TECHNICAL SERVICES COMPANY, INC.

              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

NOTE A - BASIS OF PRESENTATION:
The accompanying unaudited financial statements of Cellular Technical Services
Company, Inc. ("CTS"), including the December 31, 2001 balance sheet which has
been derived from audited financial statements, have been prepared in accordance
with generally accepted accounting principles for interim financial information
and with the instructions to Form 10-Q and Rule 10-01 of Regulation S-X.
Accordingly, they do not include all of the information and footnotes required
by generally accepted accounting principles for complete financial statements.
In the opinion of management, all adjustments (consisting of normal recurring
accruals) considered necessary for a fair presentation have been included. The
operating results for the three-month period ended March 31, 2002 are not
necessarily indicative of the results that may be expected for the fiscal year
ending December 31, 2002. For further information, refer to the financial
statements and footnotes thereto included in the Company's Annual Report on Form
10-K for the year ended December 31, 2001 and in the Company's other filings
with the Securities and Exchange Commission. Unless the context otherwise
requires, all references to the "Company" herein include Cellular Technical
Services Company, Inc. and any entity over which it has or shares operational
control.

NOTE B - LIQUIDITY:
Going forward into 2002, the Company has continued to reduce its fixed operating
costs. Management believes that under its current business plan, its current
cash balances and cash flows expected to be generated from operations are
sufficient to fund its operations and capital requirements through mid to late
2003. However, the Company's inability to successfully generate sufficient cash
flow from operations would have a material adverse impact on the Company's
financial position, liquidity or results of operations and may require the
Company to reduce its expenditures further or curtail certain operations to
enable it to continue its operations for that period.

Nasdaq requires a minimum $5 million value of public float for continued listing
on the Nasdaq National Market System. At December 31, 2001 the Company's stock
price was $2.29 and the market value of its public float was approximately $5.1
million. On March 1, 2002 the Company's closing stock price was $2.12 and the
market value of its public float was approximately $4.8 million. On March 4,
2002 the Company received a notice from Nasdaq indicating that the Company's
public float had not been over $5 million for 30 consecutive days. If the
Company fails to increase its public float value to $5 million for 10
consecutive trading days prior to June 3, 2002, Nasdaq has the right to delist
the stock or require the Company to move its stock to the Nasdaq SmallCap Market
System. The Company would have the right to request a hearing to appeal a
determination that the stock should be delisted. There is no assurance that the
Company would prevail in such a hearing. If the Company's stock were delisted,
the delisting would most likely have a material adverse affect on the price of
its common stock, would adversely affect the liquidity of the shares held by its
shareholders, and could severely restrict any ability the Company may have to
raise additional capital.

At March 31, 2002, the Company's stockholder's equity was $7.9 million. The SEC
has recently approved certain changes to Nasdaq's continued listing quantitative
standards. Effective November 30, 2002, Nasdaq's current $4 million net tangible
asset standard is being replaced with a $10 million stockholder's equity
requirement for continued listing on the Nasdaq National Market System. If the
Company fails to increase its stockholder's equity to $10 million by November 1,
2002, Nasdaq has the right to delist the stock or require the Company to move
its stock to the Nasdaq SmallCap Market System. The Company would have the right
to request a hearing to appeal a determination that the stock should be
delisted. There is no assurance that the Company would prevail in such a
hearing. If the Company's stock were delisted, the delisting would most likely
have a material adverse affect on the price of its common stock, would adversely
affect the liquidity of the shares held by its shareholders, and could severely
restrict any ability the Company may have to raise additional capital.

NOTE C - CHANGE IN ACCOUNTING FOR GOODWILL AND CERTAIN OTHER INTANGIBLES:
In July 2001, the Financial Accounting Standards Board ("FASB") issued Financial
Accounting Standard 141 -- Business Combinations ("FAS 141"). FAS 141, effective
for all business combinations initiated after July 1, 2001, requires that all
business combinations be accounted for using the purchase method of accounting.
Further, FAS 141 requires certain intangible assets to be recognized as assets
apart from goodwill if they meet certain criteria. FAS 141 also requires
expanded disclosures regarding the primary reason for consummation of the
combination and the allocation of the purchase price to the


                                       6







assets acquired and liabilities assumed by major balance sheet caption. The
Company adopted FAS 141 on January 1, 2002 and the adoption did not have a
material effect on the Company's results of operations or financial position.

 In July 2001, the FASB issued Financial Accounting Standard 142 -- Goodwill and
Intangible Assets ("FAS 142"). FAS 142, effective for fiscal years beginning
after December 15, 2001, defines accounting requirements for the treatment of
goodwill. The Company adopted FAS 142 effective January 1, 2002. Under FAS 142,
goodwill is considered to have an indefinite life and is therefore subject to
impairment accounting rather than amortization. As of January 1, 2002, the
Company had approximately $100,000 of goodwill related to the acquisition of New
England Telecom, Inc., in August 2000. As part of the adoption of FAS 142, the
Company no longer amortizes goodwill, and performed an initial test of
impairment on goodwill that resulted in the recording of an impairment loss in
the amount of $100,000 during the three months ended March 31, 2002. This net
loss is presented as the cumulative effect of an accounting change in the
statement of operations. The following table summarizes the effects of FAS 142
on net loss had it been applied retroactively to 2001:




          (in $000 except per share amounts)     Three months ended        Three months ended

                                                     March 31, 2002            March 31, 2001
                                                     --------------            --------------
                                                                   
          Net loss:                                          $(983)                     $(50)

          Goodwill Amortization                                  --                         7
                                                 --------------------------------------------

          Adjusted net loss:                                 $(983)                     $(43)
                                                 ============================================



There is no impact on basic or diluted loss per share due to the amortization of
goodwill, net of taxes.


NOTE D - INVENTORIES:
Inventory reflects phonecards sold through the Company's phonecard business.
Included in phonecard inventory at March 31, 2002 and December 31, 2001 is
$80,000 related to sales that have been accounted for on a consignment basis,
and $143,000 related to sales returns reserves at both March 31, 2002 and
December 31, 2001. Inventory consists of the following (in 000's):



                                       March 31,     December 31,
                                         2002            2001
                                       ---------     ------------
                                              
         Inventory                          $520             $578
         Less reserves                       (47)             (47)
                                            ----             ----
                                            $473             $531
                                            ====             ====



NOTE E - CONTINGENCIES:
From time to time, the Company may be a party to legal proceedings, which may or
may not be in the ordinary course of business and which may have a material
adverse effect on the Company's business, financial condition or results of
operations. The Company is currently involved in one commercial litigation case.
On October 25, 2001, New England Telecom, Inc. and Paul Gregory, a former
employee, filed a claim in the Superior Court of Massachusetts against the
Company and its Chairman alleging, among other things, that the Company breached
a purchase agreement and a related employment contract. The Company has answered
the allegations and intends to vigorously defend the case. Since the case is
currently in the discovery phase, the Company is therefore unable to assess the
likely outcome of the case.


                                       7









NOTE F- LOSS PER SHARE:
The calculation of basic and diluted loss per share is as follows (in 000's,
except per share amounts):



                                                                Three Months Ended March 31,
                                                                ----------------------------
                                                                 2002                  2001
                                                                ------                ------
                                                                            
Net loss
                                                                $ (983)              $  (50)
                                                                ======               ======
Shares used in computing basic and diluted net loss              2,292                2,292
per share
                                                                ------               ------
Basic and diluted net loss per share                            $(0.43)              $(0.02)
                                                                ======               ======



Outstanding stock options of 330,062 and 290,779 at March 31, 2002 and 2001,
respectively, were excluded from the computation of diluted earnings per share
because their effect was anti-dilutive.

NOTE G- SEGMENT INFORMATION:
The Company has two reportable business segments offering distinctive products
and services marketed through different channels: (i) a telecom
hardware/software segment including the Company's Blackbird'r' Platform product
line, which included the Blackbird'r' Platform, PreTect'TM' cloning-fraud
prevention application, No Clone Zone'TM' roaming-fraud prevention service, and
related application products and services and the Company's Neumobility
location-based services platform and software applications; and (ii) the
Company's prepaid long-distance phonecard business, which is conducted through
its majority-owned subsidiary, Isis Tele-Communications, Inc. Management
evaluates segment performance based upon segment profit or loss before income
taxes. The difference in pretax segment loss of $48,000 and net loss of $50,000
for the three months ended March 31, 2001 is attributable to income tax expense
of $2,000. The difference in pretax segment loss of $883,000 and net loss of
$983,000 for the three months ended March 31, 2002 is attributable to the
writedown of $100,000 in goodwill. There were no inter-company sales of products
between the segments. In the period ended March 31, 2002 the Company recorded an
impairment writedown of $100,000 related to the writedown of goodwill associated
with its phone card segment. The impairment loss was presented in the statement
of operations as a cumulative effect of a change in accounting principle in
accordance with the transitional rules of FAS 142. In the period ended March 31,
2001 the Company recorded $7,000 of goodwill amortization associated with its
phone card segment. The value of goodwill recorded for the Company's phone card
segment was $104,000 at December 31, 2000, $97,000 at March 31, 2001, $100,000
at December 31, 2001 and zero at March 31, 2002.



       Three months ended March 31, 2002
       ---------------------------------
       (in 000's)                                                 Segments
                                                       ------------------------------      Consolidated
                                                        Telecom HW/SW    Phone cards             Totals
                                                        -------------    -----------             ------
                                                                                    
       Revenue from external customers                             --         $2,358             $2,358
       Inter-segment revenue                                       --             --                 --
       Pretax segment loss before the effects
           of a change in accounting principle                  ($706)          (177)              (883)
       Expenditures for segment assets                             --             --                 --

       Segment assets (at March 31, 2002)                       7,482          1,380              8,862






       Three months ended March 31, 2001
       ---------------------------------
       (in 000's)                                                 Segments
                                                       ------------------------------      Consolidated
                                                        Telecom HW/SW    Phone cards             Totals
                                                        -------------    -----------             ------
                                                                                    
       Revenue from external customers                         $1,405         $4,156             $5,561
       Inter-segment revenue                                       --             --                 --
       Pretax segment income (loss)                               254           (302)               (48)
       Expenditures for segment assets                             19             12                 31

       Segment assets (at March 31, 2001)                       8,956          1,937             10,893




                                       8







Item 2. Management's Discussion and Analysis of Financial Condition and Results
        of Operations

The following discussion and analysis provides information which management
believes is relevant to an assessment and understanding of the Company's results
of operations and financial condition. The discussion should be read in
conjunction with the financial statements and notes thereto. Unless the context
otherwise requires, all references to the "Company" herein include Cellular
Technical Services Company, Inc. and any entity over which it has or shares
operational control.

Special Note Regarding Forward-Looking Statements

This Quarterly Report on Form 10-Q contains certain forward-looking statements
within the meaning of the Private Securities Litigation Reform Act of 1995 that
reflect the Company's views with respect to future events and financial
performance. The Company uses words and phrases such as "anticipate," "expect,"
"intend," "the Company believes," "future," and similar words and phrases to
identify forward-looking statements. Reliance should not be placed on these
forward-looking statements. These forward-looking statements are based on
current expectations and are subject to risks, uncertainties and assumptions
that could cause, or contribute to causing actual results to differ materially
from those expressed or implied in the applicable statements. Readers should pay
particular attention to the descriptions of risks and uncertainties described in
this report and in the Company's other filings with the Securities and Exchange
Commission. All forward-looking statements included in this report are based on
information available to the Company on the date of this report. The Company
assumes no obligation or duty to update any such forward-looking statements.

Critical Accounting Policies and Estimates

The Company's discussion and analysis of its financial condition and results of
operations are based upon the Company's consolidated financial statements, which
have been prepared in accordance with accounting principles generally accepted
in the United States. The preparation of these financial statements requires the
Company to make estimates and judgments that affect the reported amounts of
assets, liabilities, revenues and expenses, and related disclosure of contingent
assets and liabilities. On an on-going basis, the Company evaluates its
estimates, including those related to revenue recognition, product returns, bad
debts, inventories, investments, intangible assets, contingencies and
litigation. The Company bases its estimates on historical experience and on
various other assumptions that are believed to be reasonable under the
circumstances, the results of which form the basis for making judgments about
the carrying values of assets and liabilities that are not readily apparent from
other sources. A more detailed discussion on the application of these and other
accounting policies can be found in Note C in the Notes to the Consolidated
Financial Statements in Item 14 of the Company's 2001 Annual Report on Form
10-K. Actual results may differ from these estimates under different assumptions
or conditions.

Bad Debt: The Company maintains allowances for doubtful accounts for estimated
losses based on past collection history and specific risks identified in the
portfolio, resulting from the inability of its customers to make required
payments. If the financial condition of the Company's customers were to
deteriorate, resulting in an impairment of their ability to make payments,
additional allowances may be required.

Allowance for Sales Returns: The Company maintains a provision for estimated
sales returns of prepaid phonecards. The Company records a provision for
estimated sales returns in the same period as the related revenues are recorded.
These estimates are based on historical sales returns, analysis of credit memo
data and other known factors. If the historical data the Company uses to
calculate these estimates does not properly reflect future returns, revenue
could be overstated.

Inventory: The Company is required to state its inventories at the lower of cost
or market. In assessing the ultimate realization of inventories, the Company is
required to make judgments as to future demand requirements and compare that
with the current or committed inventory levels. An allowance for obsolete
inventory is maintained to reflect the expected un-saleable inventory based on
an evaluation of slow moving products. It is possible that changes in required
inventory reserves may occur in the future.

Goodwill and Intangible Impairment: In assessing the recoverability of the
Company's goodwill and other intangibles the Company must make assumptions
regarding estimated future cash flows and other factors to determine the fair
value of the respective assets. On January 1, 2002 the Company adopted Statement
of Financial Accounting Standards No. 142, "Goodwill and Other Intangible
Assets," and was required to analyze its goodwill for impairment issues in
accordance with


                                       9








the transition rules of FAS 142. In the period ended March 31, 2002 the Company
recorded an impairment writedown of $100,000 related to the writedown of
goodwill associated with its phone card segment. The impairment loss was
presented in the statement of operations as a cumulative effect of a change in
accounting principle in accordance with the transitional rules of FAS 142.

Long-Term Investment: The Company accounts for its investment of $1,754,000 in
TruePosition, Inc. under the cost method, as the Company does not have the
ability to exercise significant influence. Under the cost method of accounting,
an investment in a private company is carried at cost and adjusted only for
other-than-temporary declines in fair value, distributions of earnings and
additional investments. The Company periodically evaluates whether any decline
in fair value of its investment is other-than-temporary. This evaluation
consists of review of qualitative and quantitative factors by members of senior
management as well as market prices of comparable public companies. The Company
receives periodic financial statements to assist in reviewing relevant financial
data and to assist in determining whether such data may indicate
other-than-temporary declines in fair value below the Company's accounting
basis. If the decline in fair value is determined to be other-than-temporary and
below the accounting basis, the Company would record an expense to reduce the
cost to fair value.

Overview

The Company develops, markets, distributes and supports a diversified mix of
products and services for the telecommunications industry. Over the past 13
years, the Company has developed expertise in real-time wireless call processing
and has created technologically advanced solutions for this industry, focusing
primarily in the area of wireless communications fraud management. During the
past three years the Company implemented a short and long-range strategic plan
to diversify its product mix. This diversification strategy is at the foundation
of the Company's future plans.

Products

Prepaid Long-Distance Phonecard Products: To provide revenue growth for the
Company, and in alignment with its product diversification strategy, the Company
expanded into the prepaid long-distance service arena in the fourth quarter of
1999. Through its majority-owned subsidiary, Isis Tele-Communications, Inc., the
Company markets and distributes branded prepaid long-distance phonecards in
denominations generally ranging from $5 to $20 per card. Isis also markets
prepaid wireless phones and phonecards. Isis specializes in targeted marketing
programs and features local and toll-free access numbers and aggressive domestic
and international long-distance rates. Isis distributes cards through regional
and national multi-level distribution channels, using direct sales, third party
distributors and telemarketing. Isis has sales offices in Los Angeles and
Boston.

Location Based Services ("LBS") Platform and Applications: The Federal
Communications Commission ("FCC") has required all wireless carriers to deploy
wireless geo-location technology to provide the location of 911 wireless calls,
similar to that of wireline 911 calls. Wireless geo-location technology provides
and identifies the specific geographic location (in latitude and longitude
measurements) of a wireless telephone, and can eventually be applied to other
wireless communications devices.

In late 1999 the Company began development of a location-based wireless software
product platform and mobile commerce applications. The Company expects to
leverage its entrance into the geo-location marketplace by developing,
marketing, distributing, and supporting a suite of commercial geo-location
applications as the technology evolves and is deployed by all wireless carriers
to comply with the FCC's requirements. In January 2001 the Company formed a
division called Neumobility'TM' for this product line. The Neumobility family of
products includes a scalable platform and an application suite providing
location-based information utilizing both network and satellite positioning
technologies. The platform is called NeuTrac'TM', and is a system utilizing
positioning data to create, maintain and deliver relevant content and services
in a location-based format. The NeuTrac platform is configurable and creates a
combination of subscription-based, pay-per-use and free value-added services.
The application suite will include: NeuCommerce'TM', which allows for
personalized, permission-based one-to-one marketing; NeuMerchant'TM', which
allows for the tracking of merchant offers and creates metrics to analyze the
impact of marketing efforts; NeuMap'TM', which creates directions based upon
positioning data; NeuList'TM', which adds a location-sensitive component to
wireless e-mail functions; and NeuJournal'TM', a journaling feature which allows
for the documentation of location and content. The Company completed the initial
product suite in 2001.


                                       10








Blackbird Platform Products: The Company's Blackbird Platform product line
included a suite of radio frequency based platform solutions focusing on
wireless fraud prevention. It involved various forms of "pre-call" verification
to ensure that the use of an analog wireless telephone was legitimate before the
device was allowed to connect to a carrier's analog wireless communications
network. Blackbird Platform products were initially installed in over 2,000 cell
sites in the US by wireless carriers in 1996-1998. As digital wireless
communication was adopted, analog fraud decreased, and carriers gradually
removed the Blackbird Platform products from service. The final contract expired
December 31, 2001, and no future revenue is anticipated from the Blackbird
Platform product line.

Revenue and Expense

Revenue: During the first three months of 2002, the Company generated revenue
through sales of its Isis pre-paid phonecard products. Prepaid phone-card
revenue is comprised of wholesale and retail sales of prepaid local,
long-distance and wireless products. Revenue is recognized at shipment of
product, net of reserves for estimated returns. The Company maintains an
allowance for sales returns for prepaid phonecards based on estimated returns in
accordance with SFAS 48. Estimated returns, along with their costs, have been
reflected as a reduction in sales and cost of goods sold, respectively, and
reflected as a reduction in accounts receivable and an increase in inventory,
respectively.

During the first three months of 2001, the Company generated revenue from two
sources: Isis pre-paid phone card product sales and Blackbird service revenue.
Service revenue was derived primarily from hardware and software maintenance
programs, No Clone Zone roaming fraud prevention service, Blackbird Platform
Monitoring service and related professional services provided in support of the
Company's currently deployed product base. Service revenue was recognized
ratably over the period that the service was provided. Hardware and software
maintenance generally began after system acceptance. Prepaid or allocated
maintenance and services were recorded as deferred revenue.

Costs and Expenses: Costs of phonecards, services and systems are primarily
comprised of the costs of: (i) prepaid phonecard costs; (ii) equipment,
including both proprietary and third-party hardware and, to a lesser extent,
manufacturing overhead and related expenses; (iii) customer support; and (iv)
activities associated with the evaluation, repair and testing of parts returned
from the field in connection with the Company's previous hardware maintenance
service activities.

Research and development expenditures include the costs for research, design,
development, testing, preparation of training and user documentation and fixing
and refining features for the software and hardware components included in the
Company's current and future products and services.

The Company expects that its costs and expenses in these and other areas will
continue to be incurred in the future, due to the ongoing need to: (i) make
investments in research and development to develop new products and services to
address emerging market opportunities, including those in the LBS and prepaid
phonecard markets; (ii) enhance its sales and marketing activities; and (iii)
enhance its general and administrative activities.


Three months ended March 31, 2002 compared to three months ended March 31, 2001

Overview: Total revenue decreased 58% to $2,358,000 in 2002 from $5,561,000 in
2001. Net loss was ($983,000), or ($0.43) per diluted share, in 2002 compared to
($50,000), or ($0.02) per diluted share, in 2001. The decreased revenue was due
to the closure of the Company's Blackbird Platform product system at the end of
2001 and to reduced sales from its Isis phonecard segment due to the closure of
sales offices and increased competition in its marketplace.


The $0.9 million increase in net loss is due to several factors.

      Gross margin decreased by $1,120,000. Gross margin from the Blackbird
      products was zero in 2002, compared to $1,018,000 in 2001, as this
      business closed on December 31, 2001 resulting in a revenue decrease of
      $1,405,000


                                       11








      and associated cost decrease $387,000. Gross margin in the Isis segment
      decreased by $102,000 as revenue decreased $1,798,000 and cost of phone
      cards decreased $1,696,000.

      Operating expenses decreased by $337,000 due to reductions of $87,000 in
      R&D, $135,000 in general and administrative and $115,000 in sales and
      marketing expenses.

      Net other income and net interest income declined by a total of $52,000
      from the 2001 period to the 2002 period.

      The Company recorded a goodwill writedown of $100,000 as the cumulative
      effect of the change in accounting principle related to its adoption of
      FAS 142 during the 2002 period.

Revenue: Prepaid phone card revenue was $2,358,000 in 2002, compared to
$4,156,000 in 2001. Service revenue decreased to zero in 2002 from $1,405,000 in
2001. All of the 2001 service revenue was derived from the Blackbird Platform
Product line, which was discontinued at the end of 2001 after reaching the end
of its service life.

Costs and Expenses: Costs of phone cards, services and systems decreased by
$2,083,000 to $2,271,000 in first quarter of 2002, from $4,354,000 in the same
period of 2001. As a percent of total revenue, the costs were 96% and 78% for
the 2002 and 2001 periods, respectively. The decrease in the amounts and
increase in the percentages of costs for 2002 relative to 2001 is primarily due
to the prepaid phone card business being a larger percentage of the Company's
overall business with lower gross margins compared to the Company's prior
Blackbird service product offerings.

Sales and marketing expenses decreased 28% to $291,000 in 2002 from $406,000 in
2001. The decrease in sales and marketing expenses is attributable to headcount
decreases and office closures in the Isis segment, high trade show costs
incurred in the 2001 period related to introduction of the Company's Neumobility
product line, and to zero sales and marketing expenses incurred for the
Blackbird Platform product line in 2002.

General and administrative expenses decreased 31% to $307,000 in 2002 from
$442,000 in 2001, primarily due to headcount reductions in comparison to the
prior year period.

Research and development costs decreased 18% to $404,000 in 2002 from $491,000
in 2001. The decrease in expenditures from 2001 were primarily attributable to
reduced spending on new product development prototypes in the LBS technology
area.

Other Income, net: Net other income was $3,000 in 2002 compared to $24,000 in
the first quarter of 2001. Other income includes gains or losses from sales of
equipment and other miscellaneous income items.

Interest Income and Expense: Net interest income decreased to $29,000 in 2002
from $60,000 in 2001. This decrease is primarily attributable to lower interest
rates earned on invested cash in the 2002 period compared to the 2001 period.

Liquidity and Capital Resources

The Company's capital requirements have consisted primarily of funding software
and hardware product development, property and equipment requirements, working
capital and the Company's operating expenses. The Company historically has
funded these requirements through the sale of common stock (including proceeds
from the exercise of warrants and options) and from operating profits in certain
periods. On March 31, 2002, the Company's cash balance was $5.3 million as
compared to $6.4 million on December 31, 2001. The Company's working capital
decreased to $5.7 million at March 31, 2002 from $6.5 million at December 31,
2001.

Net cash used by operating activities amounted to $1.1 million in Q1 2002,
compared to net cash provided of $1.2 million in the comparable 2001 period. The
largest factors in the decreased level of cash provided by operations in 2002
compared to 2001 were $1.4 million in customer deposits in 2001, the $0.9
million in reduced net income in the 2002 period and additions to prepaids and
reductions in payables in the current period. At March 31, 2002, the Company had
no significant commitments for capital expenditures.


                                       12







Operating Trends : The Company had a net loss of $983,000 in the first quarter
of 2002, compared to earnings of $0.6 million and $2.6 million for each of the
full years ended December 31, 2001 and 2000, respectively. As of March 31, 2002,
the Company had an accumulated deficit of $22.1 million, which primarily
accumulated during the three years ended December 31, 1998. In the first quarter
of 2002, revenue from prepaid phone cards represented 100% of total revenue,
compared to 75% in the prior year period.

There can be no assurance that the Company's operations will be profitable on a
quarterly or annual basis in the future or that existing revenue levels can be
enhanced or sustained. Past and existing revenue levels should not be considered
indicative of future operating results. While the Company believes that its
current cash reserves and projected cash flow from operations will provide
sufficient cash to fund its operations through mid to late 2003, unanticipated
changes in customer needs and/or other external factors may require additional
financing and/or further expense reductions.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

The Company is exposed to market risk related to changes in interest rates that
could adversely affect the value of the Company's investments. The Company does
not use derivative financial instruments for speculative or trading purposes.
The Company maintains a short-term investment portfolio consisting of interest
bearing securities with maturities of less than ninety days. These securities
are classified as cash. These securities are interest bearing and thus subject
to interest rate risk and may fall in value if market interest rates increase.
Because the Company has the ability to hold its fixed income investments until
maturity, the Company does not expect its operating results or cash flows to be
affected to any significant degree by a sudden change in market interest rates
on our securities portfolio. The Company has operated primarily in the United
States and all revenues to date have been in U.S. dollars. Accordingly, the
Company does not have material exposure to foreign currency rate fluctuations.
The Company has not entered into any foreign exchange contracts to hedge any
exposure to foreign currency rate fluctuations because such exposure is
immaterial.


                                       13








                           PART II. OTHER INFORMATION


Item 1. Legal Proceedings

         From time to time, the Company may be a party to legal proceedings,
         which may or may not be in the ordinary course of business and which
         may have a material adverse effect on the Company's business, financial
         condition or results of operations. The Company is currently involved
         in one commercial litigation case. On October 25, 2001, New England
         Telecom, Inc. and Paul Gregory, a former employee, filed a claim in the
         Superior Court of Massachusetts against the Company and its Chairman
         alleging, among other things, that the Company breached a purchase
         agreement and a related employment contract. The Company has answered
         the allegations and intends to vigorously defend the case. Since the
         case is currently in the discovery phase, the Company is therefore
         unable to assess the likely outcome of the case.

Item 6. Exhibits and Reports on Form 8-K

        None.

                                   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.

                  CELLULAR TECHNICAL SERVICES COMPANY, INC.



                  By:  /s/Bruce R. York
                       ----------------
                       Bruce R. York
                       Vice President and Chief Financial Officer
                       May 15, 2002


                                       14


                           STATEMENT OF DIFFERENCES

The trademark symbol shall be expressed as...............................   'TM'
The registered trademark symbol shall be expressed as....................    'r'