DOBSON SYGNET COMMUNICATIONS CO
S-4/A, 1999-05-04
RADIOTELEPHONE COMMUNICATIONS
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<PAGE>
   
      AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON MAY 3, 1999
    
                                                      REGISTRATION NO. 333-71051
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                           --------------------------
 
   
                                AMENDMENT NO. 3
                                       TO
                                    FORM S-4
    
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                            ------------------------
 
                      DOBSON/SYGNET COMMUNICATIONS COMPANY
 
             (Exact name of registrant as specified in its charter)
 
<TABLE>
<S>                              <C>                            <C>
           OKLAHOMA                          4812                  73-1110531
 (State or other jurisdiction    (Primary Standard Industrial   (I.R.S. Employer
              of                 Classification Code Number)     Identification
incorporation or organization)                                        No.)
</TABLE>
 
                           --------------------------
 
<TABLE>
<S>                                               <C>
                                                                BRUCE R. KNOOIHUIZEN
         13439 NORTH BROADWAY EXTENSION                    13439 NORTH BROADWAY EXTENSION
                   SUITE 200                                         SUITE 200
         OKLAHOMA CITY, OKLAHOMA 73114                     OKLAHOMA CITY, OKLAHOMA 73114
                 (405) 391-8500                                    (405) 391-8500
  (Address, including Zip Code, and telephone         (Name, address, including Zip Code, and
  number, including area code, of registrant's    telephone number, including area code, of agent
          principal executive offices)                              for service)
</TABLE>
 
                            ------------------------
 
                                   COPIES TO:
 
                             THEODORE M. ELAM, ESQ.
                    MCAFEE & TAFT A PROFESSIONAL CORPORATION
                       TENTH FLOOR, TWO LEADERSHIP SQUARE
                               211 NORTH ROBINSON
                         OKLAHOMA CITY, OKLAHOMA 73102
                                 (405) 235-9621
 
                           --------------------------
 
        APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC:
  AS SOON AS PRACTICABLE AFTER THIS REGISTRATION STATEMENT BECOMES EFFECTIVE.
 
                           --------------------------
 
    If the securities being registered on this Form are being offered in
connection with the formation of a holding company and there is compliance with
General Instruction G, check the following box: / /
 
    If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, check the following box and
list the Securities Act registration number of the earlier effective
registration statement for the same offering. / /
 
    If this Form is a post-effective amendment filed pursuant to Rule 462(d)
under the Securities Act, check the following box and list the Securities Act
registration statement under the earlier effective registration statement for
the same offering. / /
 
                           --------------------------
 
                        CALCULATION OF REGISTRATION FEE
 
<TABLE>
<CAPTION>
                                                                        PROPOSED MAXIMUM    PROPOSED MAXIMUM
             TITLE OF EACH CLASS OF                   AMOUNT TO BE       OFFERING PRICE        AGGREGATE           AMOUNT OF
           SECURITIES TO BE REGISTERED                 REGISTERED         PER UNIT(1)      OFFERING PRICE(1)    REGISTRATION FEE
<S>                                                <C>                 <C>                 <C>                 <C>
12 1/4% Senior Notes due 2008....................     $200,000,000            100%            $200,000,000         $55,600(1)
</TABLE>
 
(1) Estimated solely for purposes of computing the registration fee in
    accordance with Rule 457(f)(2).
 
                           --------------------------
 
    THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8 OF THE
SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE SECURITIES AND EXCHANGE COMMISSION, ACTING
PURSUANT TO SAID SECTION 8, MAY DETERMINE.
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
   
                   SUBJECT TO COMPLETION, DATED MAY   , 1999
    
THE INFORMATION IN THIS PROSPECTUS IS NOT COMPLETE AND MAY BE CHANGED. WE MAY
NOT SELL THESE SECURITIES UNTIL THE REGISTRATION STATEMENT FILED WITH THE
SECURITIES AND EXCHANGE COMMISSION IS EFFECTIVE. THIS PROSPECTUS IS NOT AN OFFER
TO SELL THESE SECURITIES AND WE ARE NOT SOLICITING OFFERS TO BUY THESE
SECURITIES IN ANY STATE WHERE THE OFFER OR SALE IS NOT PERMITTED.
<PAGE>
PRELIMINARY PROSPECTUS
 
                                  $200,000,000
 
                               ------------------
 
   
          EXCHANGE OFFER FOR $200,000,000 OF 12 1/4% SENIOR NOTES DUE 2008
    
 
                             ---------------------
 
                      DOBSON/SYGNET COMMUNICATIONS COMPANY
 
                          TERMS OF THE EXCHANGE OFFER
 
   
    We are offering to exchange all of our outstanding 12 1/4% Senior Notes due
2008 for our 12 1/4% Senior Notes due 2008 which we have registered under the
Securities Act.
    
 
   
    Our exchange offer will expire at 5:00 p.m., New York City time, on
            , 1999, unless we extend the time of expiration.
    
 
   
    There is currently no established trading market for the notes and we do not
expect that a trading market for the notes will exist following completion of
this exchange offer.
    
 
   
SEE "RISK FACTORS" BEGINNING ON PAGE 13 FOR A DISCUSSION OF CERTAIN MATTERS THAT
SHOULD BE CONSIDERED BY INVESTORS.
    
 
NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES
COMMISSION HAS APPROVED OR DISAPPROVED OF THE NOTES TO BE DISTRIBUTED IN THE
EXCHANGE OFFER, NOR HAVE ANY OF THESE ORGANIZATIONS DETERMINED THAT THIS
PROSPECTUS IS TRUTHFUL OR COMPLETE. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.
 
                            ------------------------
 
   
                  THE DATE OF THIS PROSPECTUS IS MAY   , 1999
    
<PAGE>
                               TABLE OF CONTENTS
 
   
<TABLE>
<CAPTION>
                                                                                                                PAGE
                                                                                                                -----
<S>                                                                                                          <C>
Summary....................................................................................................           1
 
Where You Can Find More Information........................................................................          12
 
Risk Factors...............................................................................................          13
 
Use of Proceeds............................................................................................          21
 
The Exchange Offer.........................................................................................          22
 
Selected Consolidated Financial and Other Data of Dobson/Sygnet............................................          30
 
Selected Consolidated Financial and Other Data of Sygnet...................................................          32
 
Pro Forma Consolidated Financial Data......................................................................          33
 
Management's Discussion and Analysis of Financial Condition and Results of Operations......................          35
 
Business...................................................................................................          43
 
Management.................................................................................................          58
 
Certain Transactions.......................................................................................          60
 
Principal Shareholder......................................................................................          61
 
Description of Certain Indebtedness........................................................................          62
 
Description of the Notes...................................................................................          66
 
Certain U.S. Federal Tax Consequences......................................................................         102
 
Plan of Distribution.......................................................................................         106
 
Legal Matters..............................................................................................         107
 
Experts....................................................................................................         107
 
Certain Terms..............................................................................................         108
 
Index to Financial Statements..............................................................................         F-1
</TABLE>
    
 
                            ------------------------
 
    You should rely only on the information contained in this document or that
we have referred you to. We have not authorized anyone to provide you with
information that is different.
 
                            ------------------------
 
    This exchange offer is only being made to holders of our outstanding 12 1/4%
Senior Notes due 2008 in juridictions in which this exchange offer complies with
the securities or Blue Sky laws. The information in this prospectus is correct
as of this date. We make no representations as to its accuracy at any later
date.
 
                            ------------------------
 
                                       ii
<PAGE>
   
                                    SUMMARY
    
 
    THIS SUMMARY MAY NOT CONTAIN ALL THE INFORMATION THAT MAY BE IMPORTANT TO
YOU. YOU SHOULD READ THE ENTIRE PROSPECTUS INCLUDING THE FINANCIAL DATA AND
RELATED NOTES, BEFORE MAKING AN INVESTMENT DECISION. ALL REFERENCES TO "SYGNET"
ARE TO SYGNET WIRELESS, INC. AND ITS WHOLLY OWNED SUBSIDIARY, SYGNET
COMMUNICATIONS, INC. REFERENCES TO A FISCAL YEAR END RELATE TO A YEAR ENDING ON
DECEMBER 31. WE ENCOURAGE YOU TO READ THE ENTIRE PROSPECTUS, INCLUDING THE
SECTION LABELED "RISK FACTORS" AND THE FINANCIAL STATEMENTS. CERTAIN CAPITALIZED
TERMS ARE DEFINED IN "CERTAIN TERMS."
 
                               THE EXCHANGE OFFER
 
    We completed the private offering of $200.0 million of 12 1/4% Senior Notes
due 2008 on December 23, 1998. We entered into a registration agreement with the
initial purchasers in the private offering in which we agreed, among other
things, to deliver to you this prospectus and to complete the exchange offer
within 180 days of the issuance of the 12 1/4% Senior Notes due 2008. You are
entitled to exchange in the exchange offer your outstanding notes for registered
notes with substantially identical terms. If the exchange offer is not completed
by June 21, 1999, the interest rates on the notes will be increased to 12 3/4%
per year. You should read the discussion under the headings "Summary Description
of the New Notes" and "Description of the New Notes" for further information
regarding the registered notes.
 
    We believe that you may resell the notes issued in the exchange offer
without compliance with the registration and prospectus delivery provisions of
the Securities Act, subject to certain conditions. You should read the
discussion under the headings "Summary of the Terms of Exchange Offer" and "The
Exchange Offer" for further information regarding the exchange offer and resale
of the notes.
 
                                   WHO WE ARE
 
   
    We are a wholly owned subsidiary of Dobson Communications Corporation. On
December 23, 1998, we acquired Sygnet for $337.5 million. Sygnet is our
predecessor and its operations currently are our only business. Through Sygnet,
we own and operate rural and suburban cellular telephone systems serving a
single large cluster of properties. The cluster includes Youngstown, Ohio, Erie,
Pennsylvania, and suburban and rural areas between the Cleveland, Akron-Canton,
Pittsburgh, Buffalo and Rochester metropolitan areas. Our systems cover a
population of 2.4 million and, at December 31, 1998 we had 178,751 subscribers.
Our executive offices are located at 13439 North Broadway Extension, Suite 200,
Oklahoma City, Oklahoma 73114 and our telephone number is (405) 391-8500.
    
 
   
    The Federal Communications Commission has divided the United States into
rural service areas ("RSAs") and metropolitan service areas ("MSAs") and has
issued separate licenses to conduct cellular telephone operations in each RSA
and MSA. We have identified four distinct markets in our cluster of cellular
properties. Our Erie market is the Erie, Pennsylvania MSA. Our New York market
is the New York 3 RSA. Our Pennsylvania market includes the Pennsylvania 1,
Pennsylvania 2, Pennsylvania 6 and Pennsylvania 7 RSAs. Sygnet has an agreement
to purchase Pennsylvania 2 RSA for $6.0 million. Sygnet currently operates
Pennsylvania 2 RSA under a management and lease agreement. Our Youngstown market
is composed of the Youngstown, Ohio and Sharon, Pennsylvania MSAs, and the Ohio
11 RSA. Sygnet owns all of the licenses for these markets except for
Pennsylvania 2 RSA.
    
 
                                       1
<PAGE>
   
BUSINESS STRATEGY
    
 
    Our business strategy is to integrate our operations with those of our
parent, Dobson Communications Corporation, increase our market penetration and
further develop our cellular systems to sustain growth in our cash flows.
 
SYGNET ACQUISITION AND FINANCING PLAN
 
    On December 23, 1998, we acquired all of the outstanding capital stock of
Sygnet for $337.5 million. In order to finance the Sygnet acquisition, we
consummated the following transactions, concurrently with the Sygnet
acquisition:
 
    -  we received an equity contribution of approximately $145.0 million from
       our parent, Dobson Communications;
 
    -  we obtained a $430.0 million bank credit facility consisting of a $50.0
       million reducing revolving credit facility and $380.0 million of term
       loans, and used $407.0 million of these available funds under these new
       bank facilities;
 
    -  we sold $200.0 million aggregate principal amount of our 12 1/4% Senior
       Notes due 2008, and used approximately $67.7 million to purchase a
       portfolio of U.S. government securities that are pledged as security for
       the first six scheduled interest payments on the notes;
 
    -  Sygnet repaid all indebtedness outstanding under its existing bank
       facility;
 
    -  Sygnet repurchased all of its outstanding 11 1/2% Senior Notes due 2006;
       and
 
   
    -  Sygnet sold substantially all of its owned cellular towers for $25.0
       million to Dobson Tower Company, another wholly owned subsidiary of our
       parent company, Dobson Communications, which leased the cellular towers
       back to Sygnet.
    
 
   
    The following table illustrates the sources and uses of funds we used for
the above transactions (in millions):
    
 
<TABLE>
<CAPTION>
               SOURCES OF FUNDS                                   USES OF FUNDS
- -----------------------------------------------  -----------------------------------------------
<S>                                   <C>        <C>                                   <C>
Issuance of our 12 1/4% Senior Notes             Amount payable in the Sygnet
 due 2008...........................  $   200.0  acquisition.........................  $   337.5
Equity contribution.................      145.0  Repayment of Sygnet's bank                198.8
                                                 facility............................
Borrowings under new bank                        Sygnet's repurchase of its notes....
 facilities.........................      407.0                                            136.1
Tower sale-leaseback................       25.0  Purchase of pledged securities......       67.7
                                                                                            36.9
                                                 Fees and expenses...................
                                      ---------                                        ---------
Total Sources of Funds..............  $   777.0  Total Uses of Funds.................  $   777.0
                                      ---------                                        ---------
                                      ---------                                        ---------
</TABLE>
 
                                USE OF PROCEEDS
 
    We will not receive any proceeds from the issuance of the new notes in the
exchange offer.
 
                                       2
<PAGE>
   
                   SUMMARY OF THE TERMS OF THE EXCHANGE OFFER
    
 
   
    In the exchange offer, we are offering to exchange up to $200.0 million
aggregate principal amount of our outstanding notes for an equal amount of our
new notes. The new notes will be our obligations, entitled to the benefits of
the indenture governing the outstanding notes. The form and terms of our new
notes are identical in all material respects to the form and terms of our
outstanding notes except that the new notes have been registered under the
Securities Act. The new notes will not be entitled to the benefits of the
registration rights granted under the registration rights agreement, which is
executed as part of the offering of the outstanding notes.
    
 
   
<TABLE>
<S>                             <C>
Registration rights
  agreement...................  You are entitled to exchange your old notes for registered
                                new notes with substantially identical terms. The exchange
                                offer is intended to satisfy these rights. After the
                                exchange offer is complete, you will no longer be entitled
                                to any exchange or registration rights with respect to your
                                notes.
The exchange offer............  We are offering to exchange $1,000 principal amount of our
                                new, 12 1/4% Senior Notes due 2008 which have been
                                registered under the Securities Act for each $1,000
                                principal amount of our outstanding 12 1/4% Senior Notes due
                                2008 which were issued in December 1998 in a private
                                offering. In order to be exchanged, an outstanding note must
                                be properly tendered and accepted. We will accept for
                                exchange all outstanding notes that are validly tendered and
                                not validly withdrawn. As of this date we have $200.0
                                million principal amount of old notes outstanding.
                                We will issue registered new notes on or promptly after the
                                expiration of the exchange offer.
Shelf registration............  We may be required to file a shelf registration statement
                                with respect to our outstanding notes if:
 
                                    - the Securities and Exchange Commission issues an
                                      interpretation that we are not permitted to effect the
                                      exchange offer,
 
                                    - we do not conclude the exchange offer by June 23,
                                      1999,
 
                                    - an initial purchaser of the notes requests that we
                                    file a shelf registration statement with respect to
                                      notes held by the initial purchasers,
 
                                    - a holder of notes
 
                                (a)  is not eligible to participate in the exchange offer,
                                     or
 
                                (b)  has participated in the exchange offer but does not
                                     receive freely tradeable notes,
 
                                    - an initial purchaser has received new notes in the
                                    exchange offer or has otherwise been issued new notes in
                                      exchange for old notes constituting a portion of an
                                      unsold allotment, which new notes are not freely
                                      tradeable.
Resale of the new notes.......  Based on an interpretation by the staff of the Securities
                                and Exchange Commission set forth in no-action letters
                                issued to third parties, including "Exxon Capital Holdings
                                Corporation" (available May 13, 1988) and "Morgan Stanley &
                                Co. Incorporated" (available June 5, 1991), we believe that
                                you may offer the new notes for resale, resell the new notes
                                and otherwise transfer the new notes without
</TABLE>
    
 
                                       3
<PAGE>
 
<TABLE>
<S>                             <C>
                                compliance with the registration and prospectus delivery
                                provisions of the Securities Act provided that:
 
                                    - you acquire the new notes in the exchange offer in the
                                      ordinary course of your business;
 
                                    - you have no arrangement or understanding with any
                                    person to participate in the distribution of the new
                                      notes that you obtain in the exchange offer;
 
                                    - you are not a broker-dealer who purchased such
                                    outstanding notes directly from us for resale pursuant
                                      to Rule 144A or any other available exemption under
                                      the Securities Act; and
 
                                    - you are not our "affiliate".
                                We intend to rely on the existing no-action letters and do
                                not intend to request a separate no-action letter.
The expiration date...........  The exchange offer will expire at 5:00 p.m., New York City
                                time,           , 1999, unless we decide to extend the
                                expiration date.
Accrued interest on the new
  notes and the outstanding
  notes.......................  The new notes will bear interest from December 23, 1998. If
                                we accept your old notes for exchange, you will not receive
                                any payment on those outstanding notes for accrued interest
                                from December 23, 1998 to the date of the issuance of the
                                new notes. Consequently, holders who exchange their
                                outstanding notes for new notes will receive the same
                                interest payment on June 15, 1999, which is the first
                                interest payment date for the outstanding notes and the new
                                notes, that they would have received had they not accepted
                                the exchange offer.
Termination of the exchange
  offer.......................  We may terminate the exchange offer at any time prior to the
                                expiration date if we determine that our ability to proceed
                                with the exchange offer could be materially impaired due to
                                any legal or governmental action, new law, statute, rule or
                                regulation or any interpretation of the staff of the
                                Securities and Exchange Commission of any existing law,
                                statute, rule or regulation. We do not expect any of the
                                foregoing conditions to occur, although there can be no
                                assurance that such conditions will not occur. Holders of
                                outstanding notes will have certain rights against us under
                                the registration rights agreement executed as part of the
                                offering of the outstanding notes should we fail to
                                consummate the exchange offer.
</TABLE>
 
                                       4
<PAGE>
 
   
<TABLE>
<S>                             <C>
Special procedures for
  beneficial owners...........  If you are the beneficial owner of old notes and your name
                                does not appear on a security position listing of the
                                Depository Trust Company as the holder of such notes or if
                                you are a beneficial owner of old notes that are registered
                                in the name of a broker, dealer, commercial bank, trust
                                company or other nominee and you wish to tender such notes
                                or registered notes in the exchange offer, you should
                                contact the person in whose name your notes are registered
                                promptly and instruct that person to tender on your behalf.
                                If such beneficial holder wished to tender on his own behalf
                                such beneficial holder must, prior to completing and
                                executing the letter of transmittal and delivering its
                                outstanding notes, either make appropriate arrangements to
                                register ownership of the outstanding notes in such holder's
                                name or obtain a properly completed bond power from the
                                registered holder. The transfer of record ownership may take
                                considerable time.
Guaranteed delivery
  procedures..................  If you wish to tender your notes and time will not permit
                                your required documents to reach the Exchange Agent by the
                                expiration date, or the procedure for book-entry transfer
                                cannot be completed on time or certificates for your
                                registered notes cannot be delivered on time, you may tender
                                your notes pursuant to the procedures described in this
                                prospectus under the heading "The Exchange Offer--Guaranteed
                                Delivery Procedures."
Withdrawal rights.............  You may withdraw the tender of your notes at any time prior
                                to 5:00 p.m., New York City time, on           , 1999,
                                unless your notes were previously accepted for exchange.
Acceptance of outstanding
  notes and delivery of new
  notes.......................  Subject to certain conditions described more fully under
                                "The Exchange Offer--Conditions of the Exchange Offer", we
                                will accept for exchange any and all of your notes which are
                                properly tendered in the exchange offer prior to 5:00 p.m.,
                                New York City time, on the expiration date. The notes issued
                                pursuant to the exchange offer will be delivered promptly to
                                you following the expiration date.
Certain U.S. federal tax
  consequences................  The exchange of the notes will generally not be a taxable
                                exchange for United States federal income tax purposes. We
                                believe you will not recognize any taxable gain or loss or
                                any interest income as a result of the exchange.
Use of proceeds...............  We will not receive any proceeds from the issuance of new
                                notes in the exchange offer. We will pay all expenses
                                incident to the exchange offer.
Exchange Agent................  United States Trust Company of New York is serving as the
                                exchange agent in connection with the exchange offer. The
                                Exchange Agent can be reached at Corporate Trust
                                Administration, 114 West 47th Street, New York, NY
                                10036-1532. For more information with respect to the
                                exchange offer, the telephone number for the Exchange Agent
                                is (212) 852-1000 and the facsimile number for the Exchange
                                Agent is (212) 852-1625.
</TABLE>
    
 
                                       5
<PAGE>
                      SUMMARY DESCRIPTION OF THE NEW NOTES
 
   
<TABLE>
<S>                             <C>
Notes offered.................  $200,000,000 aggregate principal amount of 12 1/4% Senior
                                Notes due 2008.
Maturity date.................  December 15, 2008.
Interest payment dates........  June 15 and December 15 of each year, commencing June 15,
                                1999.
Ranking.......................  The new notes will be unsecured senior subordinated
                                obligations and will be subordinated to all our existing and
                                future senior indebtedness. The new notes will rank equally
                                with all our other existing and future senior subordinated
                                indebtedness, and will rank senior to all our subordinated
                                indebtedness. The new notes effectively will rank junior to
                                all liabilities of our subsidiaries. Because the new notes
                                are subordinated, in the event of bankruptcy, liquidation or
                                dissolution, holders of the new notes will not receive any
                                payment until holders of senior indebtedness have been paid
                                in full. The terms "senior indebtedness" and "subordinated
                                indebtedness" are defined in the "Description of the Notes--
                                Ranking" and "Description of the Notes--Certain Definitions"
                                sections of this prospectus.
                                As of December 31, 1998, we had no indebtedness other than
                                the old notes and our subsidiaries had $431.3 million of
                                liabilities, excluding deferred taxes, including $407.0
                                million of indebtedness, all of which was effectively senior
                                to the notes.
Optional redemption...........  We may redeem the notes, in whole or in part, at any time on
                                or after December 15, 2003, at the redemption prices set
                                forth under "Description of the Notes--Optional Redemption."
Public equity offering
  optional redemption.........  Before December 15, 2001, we may redeem up to 35% of the
                                aggregate principal amount of the notes with the net
                                proceeds of a public equity offering we will pay a
                                redemption price of 112.25% of the principal amount thereof,
                                plus accrued interest. At least 65% of the aggregate
                                principal amount of the notes originally issued must remain
                                outstanding after such redemption. See "Description of the
                                Notes--Optional Redemption."
Change of control.............  Upon certain change of control events, each holder of notes
                                may require us to repurchase all or a portion of its notes
                                at a purchase price equal to 101% of the principal amount
                                thereof, plus accrued interest. We can not assure you that
                                we will have or will have access to the necessary funds to
                                repurchase the notes in the event of a change of control.
                                See "Description of the Notes--Certain Definitions" for the
                                definition of a change of control.
Certain covenants.............  The indenture governing the notes contains covenants that,
                                among other things, limit our ability and the ability of our
                                restricted subsidiaries to:
 
                                    - incur additional indebtedness,
 
                                    - pay dividends on, redeem or repurchase our capital
                                      stock,
 
                                    - make investments,
 
                                    - issue or sell capital stock of restricted
                                      subsidiaries,
</TABLE>
    
 
                                       6
<PAGE>
 
   
<TABLE>
<S>                             <C>
                                    - engage in transaction with affiliates,
 
                                    - create certain liens,
 
                                    - sell assets, and
 
                                    - consolidate, merge or transfer all or substantially
                                    all of our assets and the assets of our subsidiaries on
                                      a consolidated basis.
                                These covenants are subject to important exceptions and
                                qualifications, which we have described elsewhere in this
                                prospectus under the heading "Description of the
                                Notes--Covenants."
Exchange offer; registration
  rights......................  Under a registration rights agreement which we executed as
                                part of the offering of the old notes, we have agreed to:
 
                                    - prepare and file a registration statement enabling
                                    note holders to exchange the privately placed notes for
                                      publicly registered notes with identical terms,
 
                                    - use our best efforts to cause the registration
                                    statement to become effective,
 
                                    - consummate the exchange offer within 180 days after
                                      December 23, 1998, and
 
                                    - use our best efforts to file a shelf registration
                                    statement for the resale of the notes if we cannot
                                      effect an exchange offer within the time periods
                                      listed above and in certain other circumstances.
                                The annual interest rate on the notes will increase to
                                12 3/4% if we do not comply with our obligations under the
                                registration rights agreement. See "The Exchange Offer."
Absence of a public market for
  the new notes...............  In general, you may freely transfer the new notes. However,
                                there are exceptions to this general statement. You may not
                                freely transfer the new notes if:
 
                                    - you acquire the new notes outside of your ordinary
                                    course of business,
 
                                    - you have an arrangement with any person to participate
                                    in the distribution of the new notes, or
 
                                    - you are our affiliate.
                                Further, the new notes will be new securities for which
                                there will not initially be a market. We do not intend to
                                apply for a listing of the new notes on any securities
                                exchange or on any automated dealer quotation system. See
                                "Risk Factors--You may find it difficult to sell your
                                notes."
</TABLE>
    
 
                                  RISK FACTORS
 
   
    You should consider carefully the information set forth under the caption
"Risk Factors" beginning on page 13 and all the other information set forth in
this prospectus before deciding whether to participate in the exchange offer.
    
 
                                       7
<PAGE>
   
          SUMMARY HISTORICAL AND PRO FORMA CONSOLIDATED FINANCIAL DATA
    
 
    Our historical consolidated financial data as of and for the period ended
December 31, 1998 have been derived from our audited consolidated financial
statements.
 
    Our pro forma consolidated statement of operations data give effect to our
acquisition of Sygnet and its related financing as described in "Summary--Sygnet
Acquisition and Financing Plan" as if they occurred on January 1, 1998. The
summary unaudited pro forma consolidated financial data are based on currently
available information and certain assumptions that management believes are
reasonable. The pro forma consolidated financial information does not purport to
represent what our results of operations would have been if the Sygnet
acquisition had been completed on such dates, nor does it purport to indicate
our future financial position or results of future operations. You should read
the following information in conjunction with "Selected Consolidated Financial
and Other Data of Dobson/Sygnet," "Selected Consolidated Financial and Other
Data of Sygnet," "Pro Forma Consolidated Financial Data," "Management's
Discussion and Analysis of Financial Condition and Results of Operations" and
the consolidated financial statements and the related notes that we include
elsewhere in this prospectus.
 
    We define "earnings" as earnings before extraordinary items and accounting
changes, interest expense, amortization of deferred financing costs, taxes and
the portion of rent expense under operating leases representative of interest.
Fixed charges consist of interest expense, amortization of deferred financing
costs and a portion of rent expense under operating leases representative of
interest. On a pro forma basis, for the year ended December 31, 1998, our
earnings would have been insufficient to cover our combined fixed charges and
preferred stock dividends by $87.8 million.
 
   
<TABLE>
<CAPTION>
                                                                             HISTORICAL PERIOD      PRO FORMA
                                                                              ENDED DECEMBER       YEAR ENDED
                                                                                 31, 1998       DECEMBER 31, 1998
                                                                             -----------------  -----------------
                                                                                    (DOLLARS IN THOUSANDS)
<S>                                                                          <C>                <C>
STATEMENT OF OPERATIONS DATA:
  Revenue:
    Subscriber revenue.....................................................     $     1,563        $    66,349
    Roaming revenue........................................................             664             28,699
    Equipment sales........................................................             191              5,985
    Other revenue..........................................................         --                   1,653
                                                                                   --------           --------
    Total revenue..........................................................           2,418            102,686
                                                                                   --------           --------
  Costs and expenses:
    Cost of services.......................................................             160             11,609
    Cost of equipment sales................................................             369             10,813
    Marketing and selling..................................................             613             15,394
    General and administrative.............................................             464             16,974
    Depreciation and amortization..........................................           1,662             72,139
                                                                                   --------           --------
    Total costs and expenses...............................................           3,268            126,929
                                                                                   --------           --------
  Operating loss...........................................................            (850)           (24,243)
    Interest expense.......................................................            (886)           (63,275)
    Other income (expense), net............................................              20               (299)
                                                                                   --------           --------
    Loss before income taxes and extraordinary item........................          (1,716)           (87,817)
    Income tax benefit.....................................................             652             33,370
                                                                                   --------           --------
    Net loss...............................................................     $    (1,064)       $   (54,446)
                                                                                   --------           --------
                                                                                   --------           --------
</TABLE>
    
 
                                       8
<PAGE>
 
   
<TABLE>
<CAPTION>
                                                                             HISTORICAL PERIOD      PRO FORMA
                                                                              ENDED DECEMBER       YEAR ENDED
                                                                                 31, 1998       DECEMBER 31, 1998
                                                                             -----------------  -----------------
                                                                                    (DOLLARS IN THOUSANDS)
<S>                                                                          <C>                <C>
OTHER FINANCIAL DATA:
  Ratio of earnings to combined fixed charges and preferred stock
    dividends..............................................................         --                 --
  Capital expenditures, excluding cost of acquisitions.....................         N/A                 13,654
 
OTHER DATA:
  Ending cellular subscribers (at period end)..............................         178,751            178,751
  Cellular penetration (at period end).....................................             7.5%               7.5%
  Cellular churn...........................................................         N/A                    1.4%
  Average monthly revenue per cellular subscriber..........................         N/A            $        35
  Cellular sites (at period end)...........................................             183                183
</TABLE>
    
 
<TABLE>
<CAPTION>
                                                                                                      DECEMBER 31,
                                                                                                          1998
                                                                                                      ------------
                                                                                                         ACTUAL
                                                                                                      ------------
                                                                                                      (DOLLARS IN
                                                                                                       THOUSANDS)
<S>                                                                                                   <C>
BALANCE SHEET DATA:
  Property and equipment, net.......................................................................   $   46,994
  Total assets......................................................................................      956,738
  Total debt........................................................................................      607,000
  Stockholders' equity..............................................................................      143,936
</TABLE>
 
                                       9
<PAGE>
   
 SUMMARY HISTORICAL CONSOLIDATED FINANCIAL DATA OF SYGNET (PREDECESSOR COMPANY)
    
 
    The summary historical consolidated financial data for 1996 and 1997 and for
the period from January 1, 1998 through December 23, 1998 have been derived from
Sygnet's audited consolidated financial statements. You should read the
information as set forth below in conjunction with "Selected Consolidated
Financial and Other Data of Dobson/Sygnet" "Selected Consolidated Financial and
Other Data of Sygnet," "Pro Forma Consolidated Financial Data," "Management's
Discussion and Analysis of Financial Condition and Results of Operations" and
the consolidated financial statements and the related notes that we include
elsewhere in this prospectus.
 
    We define "earnings" as earnings before extraordinary items and accounting
changes, interest expense, amortization of deferred financing costs, taxes and
the portion of rent expense under operating leases representative of interest.
Fixed charges consist of interest expense, amortization of deferred financing
costs and a portion of rent expense under operating leases representative of
interest. Sygnet's
earnings were insufficient to cover combined fixed charges and preferred stock
dividends by $4.6 million for the year ended December 31, 1996, by $22.7 million
for the year ended December 31, 1997 and by $14.5 million for the period from
January 1, 1998 through December 23, 1998.
 
<TABLE>
<CAPTION>
                                                                                                   PERIOD FROM
                                                                                                 JANUARY 1, 1998
                                                                         YEAR ENDED DECEMBER    THROUGH DECEMBER
                                                                                 31,                23, 1998
                                                                        ----------------------  -----------------
                                                                           1996        1997           1998
                                                                        ----------  ----------  -----------------
                                                                                 (DOLLARS IN THOUSANDS)
<S>                                                                     <C>         <C>         <C>
STATEMENT OF OPERATIONS DATA:
  Revenue:
    Subscriber revenue................................................  $   31,785  $   55,154     $    64,786
    Roaming revenue...................................................       8,737      23,377          28,035
    Equipment sales...................................................       2,417       4,323           5,794
    Other revenue.....................................................       1,607       1,680           1,653
                                                                        ----------  ----------        --------
    Total revenue.....................................................      44,546      84,534         100,268
                                                                        ----------  ----------        --------
  Costs and expenses:
    Cost of services..................................................       5,258       8,948           9,433
    Cost of equipment sales...........................................       5,816       9,663          10,444
    General and administrative........................................       9,852      16,976          19,796
    Selling and marketing.............................................       6,080      10,841          12,327
    Merger related costs..............................................      --          --               1,884
    Depreciation and amortization.....................................      10,039      28,719          27,498
                                                                        ----------  ----------        --------
    Total costs and expenses..........................................      37,045      75,147          81,382
                                                                        ----------  ----------        --------
  Operating income (loss).............................................       7,501       9,387          18,886
    Interest expense..................................................     (11,174)    (29,902)        (27,895)
    Merger related costs..............................................      --          --              (5,206)
    Other expense, net................................................        (195)       (101)           (319)
                                                                        ----------  ----------        --------
    Loss before income taxes and extraordinary item...................      (3,868)    (20,616)        (14,534)
    Extraordinary loss on extinguishment of debt......................      (1,420)     --             --
                                                                        ----------  ----------        --------
    Net loss..........................................................  $   (5,288) $  (20,616)    $   (14,534)
                                                                        ----------  ----------        --------
                                                                        ----------  ----------        --------
</TABLE>
 
                                       10
<PAGE>
 
   
<TABLE>
<CAPTION>
                                                                         YEAR ENDED DECEMBER      PERIOD ENDED
                                                                                 31,            DECEMBER 23, 1998
                                                                        ----------------------  -----------------
                                                                           1996        1997           1998
                                                                        ----------  ----------  -----------------
                                                                                 (DOLLARS IN THOUSANDS)
<S>                                                                     <C>         <C>         <C>
OTHER FINANCIAL DATA:
  Ratio of earnings to combined fixed charges and preferred stock
    dividends.........................................................      --          --             --
  Capital expenditures, excluding cost of acquisitions................  $   10,050  $   25,576      $  13,654
 
OTHER DATA:
  Ending cellular subscribers (at period end).........................     106,574     142,934         N/A
  Cellular penetration (at period end)................................         4.5%        6.0%        N/A
  Cellular churn......................................................         1.3%        1.3%           1.4%
  Average monthly revenue per cellular subscriber.....................  $       42  $       36      $      35
  Cellular sites (at period end)......................................         114         163            183
</TABLE>
    
 
   
<TABLE>
<CAPTION>
                                                                                               DECEMBER 23, 1998
                                                                                              --------------------
                                                                                                  (DOLLARS IN
                                                                                                   THOUSANDS)
<S>                                                                                           <C>
BALANCE SHEET DATA:
  Property and equipment, net...............................................................       $   51,035
  Total assets..............................................................................          329,580
  Total debt................................................................................          308,500
  Stockholders' equity......................................................................            4,684
</TABLE>
    
 
                                       11
<PAGE>
   
                      WHERE YOU CAN FIND MORE INFORMATION
    
 
    This prospectus constitutes a part of a registration statement which we have
filed with the Securities and Exchange Commission under the Securities Act. As
permitted by the rules and regulations of the Securities and Exchange
Commission, this prospectus does not contain all of the information contained in
the registration statement and its exhibits and schedules. Therefore, we refer
you to the registration statement and to its exhibits and schedules. For further
information about us and about the securities we are offering, you should
consult the registration statement and its exhibits and schedules. You should be
aware that statements contained in this prospectus concerning the provisions of
any documents filed as an exhibit to the registration statement or otherwise
filed with the Securities and Exchange Commission are our summaries of all
material provisions of these documents, and in each instance we refer to the
copy of the filed document. Our statements are qualified in their entirety by
this reference.
 
    We will become subject to the informational requirements of the Securities
Exchange Act of 1934 when the registration statement of which the prospectus is
a part becomes effective. As a result, we will file periodic reports, proxy
statements and other information with the Securities and Exchange Commission.
You may read and copy reports, proxy statements and other information we file at
the public reference facilities maintained by the Securities and Exchange
Commission at the Public Reference Room 1024, 450 Fifth Street, N.W., Judiciary
Plaza, Washington D.C. 20549. Please call the Securities and Exchange Commission
at 1-800-SEC-0330 for further information on the public reference facilities.
You may also obtain copies of documents we file at prescribed rates by writing
to the Securities and Exchange Commission, Public Reference Section, 450 Fifth
Street, N.W., Washington, D.C. 20549. You may also access this information
electronically through the Securities and Exchange Commission's web page on the
Internet at http://www.sec.gov. This web site contains reports, proxy statement
and other information regarding registrants such as ourselves that have filed
electronically with the Securities and Exchange Commission. You may also access
information regarding us through our web page on the Internet at http://
www.dobson.net.
 
    The indenture governing the outstanding notes provides that we will furnish
you with copies of the periodic reports that we are required to file with the
Securities and Exchange Commission under the Exchange Act. Even if we are not
subject to the periodic reporting and informational requirements of the Exchange
Act, we will make such filings to the extent that the Securities and Exchange
Commission accepts such filings. The indenture provides that we must make these
filings regardless of whether we have a class of securities registered under the
Exchange Act. Furthermore, we will provide the Trustee for the notes and the
holders of the notes within 15 days after such filings with annual reports
containing the information required to be contained in Form 10-K, and quarterly
reports containing the information required to be contained in Form 10-Q
promulgated by the Exchange Act. From time to time, we will also provide such
other information as is required to be contained in Form 8-K promulgated by the
Exchange Act. If the Securities and Exchange Commission does not accept our
filing of such information or if the filing is prohibited by the Exchange Act,
we will then provide promptly upon written request, at our cost, copies of such
reports to you.
 
                                       12
<PAGE>
   
                                  RISK FACTORS
    
 
    IN ADDITION TO THE INFORMATION CONTAINED IN THIS PROSPECTUS, YOU SHOULD
CAREFULLY CONSIDER THE FOLLOWING RISK FACTORS IN EVALUATING WHETHER OR NOT YOU
SHOULD PARTICIPATE IN THE EXCHANGE OFFER. CERTAIN CAPITALIZED TERMS ARE DEFINED
IN "CERTAIN TERMS."
 
   
WE HAVE A SIGNIFICANT AMOUNT OF INDEBTEDNESS WHICH MAY LIMIT OUR ABILITY TO MEET
  OUR DEBT SERVICE AND DIVIDEND OBLIGATIONS, TO BORROW ADDITIONAL MONEYS AND TO
  SURVIVE A DOWNTURN IN OUR BUSINESS.
    
 
    At December 31, 1998, we had approximately $607.0 million of consolidated
indebtedness, including $407.0 million under our bank facilities, and $143.9
million of consolidated stockholder's equity. At December 31, 1998, our
subsidiaries would have been able to incur $23.0 million of additional debt
under the new bank facilities. The indenture governing the notes also allows our
subsidiaries and us to incur substantial additional debt in the future. Assuming
the Sygnet acquistion and its related transactions had been completed on January
1, 1998, our earnings would have been insufficient to cover our fixed charges by
$87.8 million for the year ended December 31, 1998.
 
    Our level of indebtedness could have important consequences, including:
 
    - our debt service requirements could make it more difficult for us to make
      required payments under the notes;
 
    - our ability to borrow additional money for working capital, capital
      expenditures, debt service requirements or other purposes will be limited;
 
    - a substantial portion of our future cash flow from operations will be
      required to pay principal and interest on indebtedness and will not be
      available for our business;
 
    - our flexibility in planning for, or reacting to changes in, our business
      and our ability to take advantage of future business opportunities may be
      restricted;
 
    - we may be more highly leveraged than certain of our competitors, which may
      place us at a competitive disadvantage; and
 
    - our high degree of leverage could make us more vulnerable in the event of
      a downturn in our business.
 
   
IF SYGNET IS UNABLE TO SATISFY THE COVENANTS OF ITS BANK FACILITIES, IT WILL BE
  UNABLE TO BORROW UNDER THE BANK FACILITIES WHICH MAY LIMIT OUR ABILITY TO
  SERVICE OUR DEBT, INCLUDING THE NOTES.
    
 
    To meet our future debt service requirements, including our obligations
under the notes, we must successfully integrate our operations with those of
Dobson Communications, increase our market penetration and further develop our
cellular systems. We cannot assure you that we will successfully achieve these
goals or that we will generate enough cash flow from operating activities to
meet our debt service obligations and our other cash requirements, including for
working capital and capital expenditures. Furthermore, if Sygnet is unable to
satisfy any of the covenants under its new bank facilities, including financial
covenants, it will be unable to borrow under the new bank facilities during that
time. Failure to obtain such financing could cause us to delay or abandon some
or all of our plans, which could limit our ability to service our debt including
the notes, and could have a material adverse effect on our business. Sygnet's
ability to borrow under the new bank facilities will be limited by the
requirement that, on a quarterly basis beginning December 31, 2000, the amount
available under the new bank facilities will reduce quarterly until they
terminate, which may require us to make significant principal payments. See
"Description of Certain Indebtedness."
 
                                       13
<PAGE>
   
WE WILL NEED TO REFINANCE OUR INDEBTEDNESS AT MATURITY OR WE WILL NEED TO SELL
  ASSETS TO MEET OUR FINANCIAL OBLIGATIONS.
    
 
    We will need to refinance the new bank facilities and the notes at their
maturities. Our ability to do so will depend on, among other things, our
financial condition at the time, the restrictions in the instruments governing
our indebtedness and other factors, including market conditions, beyond our
control. If we cannot refinance any of this indebtedness we may be unable to
meet our obligations under the notes. In addition, if there is a delay in
maintaining and expanding our systems or if we do not generate sufficient cash
flow to meet our debt service requirements, we may need additional financing. We
cannot assure you that we could obtain any such refinancing or financing or that
the terms of any refinancing or financing which we could obtain would be
acceptable to us. In the absence of such refinancing or financing, we could be
forced to sell assets at unfavorable prices in order to make up for any
shortfall. At December 31, 1998, approximately 84.1% of our assets consisted of
intangible assets, principally licenses granted by the FCC. The value of our
intangible assets depends upon a variety of factors, including the success of
our business and the wireless telecommunications industry in general. In
addition, the FCC must approve the transfers of interests in the licenses. As a
result, we cannot assure you that the assets could be sold quickly enough, or
for sufficient amounts, to enable us to meet our obligations, including our
obligations with respect to the notes.
 
   
WE ARE A HOLDING COMPANY AND DEPEND ON DISTRIBUTIONS FROM OUR SUBSIDIARIES TO
  MEET OUR OBLIGATIONS, INCLUDING THE NOTES. THE NOTES ARE EFFECTIVELY
  SUBORDINATED TO OUTSTANDING OBLIGATIONS OF OUR SUBSIDIARIES.
    
 
    We are a holding company with no direct operations and no significant assets
other than the stock of Sygnet. Accordingly, we are dependent on the
distributions of cash from Sygnet to meet our obligations, including our
obligations to pay interest and principal on the notes. Sygnet's ability to
distribute funds to us is and will be restricted by the terms of existing and
future indebtedness, including the new bank facilities. See "Description of
Certain Indebtedness--New Bank Facilities."
 
    Sygnet is a separate legal entity that has no obligation to make any funds
available for the payment of interest on and purchase of our notes. Because
Sygnet has not guaranteed the notes, any right we and our creditors, including
the holders of the notes, may have to receive assets of Sygnet upon its
liquidation or reorganization is effectively junior to the claims of Sygnet's
creditors, except to the extent we are a creditor of Sygnet. Assets remaining
after satisfaction of the claims of creditors of Sygnet and the holders of our
secured indebtedness may not be sufficient to pay amounts due on any or all of
the notes then outstanding.
 
    Sygnet has pledged the stock of its subsidiary, and Sygnet and its
subsidiary have granted liens on substantially all of their assets as security
for the obligations under the new bank facilities. At December 31, 1998, Sygnet
had $612.8 million of liabilities, including $407.0 million of indebtedness, all
of which would have been secured and effectively senior to the notes. See
"Selected Consolidated and Other Financial Data of Sygnet."
 
   
RESTRICTIONS IMPOSED BY OUR DEBT AGREEMENTS MAY LIMIT OR PROHIBIT US FROM
  ENGAGING IN CERTAIN TRANSACTIONS OR OBTAINING ADDITIONAL FINANCING.
    
 
    The indenture governing the notes and the terms of the new bank facilities
restrict or prohibit our subsidiaries and us from:
 
    - incurring additional indebtedness,
 
    - paying dividends,
 
    - repaying subordinated indebtedness prior to their maturities,
 
    - selling assets,
 
    - making investments,
 
                                       14
<PAGE>
    - engaging in transactions with stockholders and affiliates,
 
    - issuing capital stock,
 
    - creating liens, or
 
    - engaging in mergers or acquisitions.
 
    These restrictions may limit our ability and that of our subsidiaries to
obtain future financing, fund capital expenditures, or engage in other business
activities that may be in our interest. Our future indebtedness and that of our
subsidiaries may also contain significant restrictions.
 
    If we or our subsidiaries fail to comply with the restrictions in financing
agreements, this failure could lead to a default under the terms of the
indebtedness and the notes even though we may be able to meet our debt service
obligations. In the event of a default, the holders of the indebtedness could
elect to declare all the indebtedness due and payable together with accrued
interest. We cannot assure you that we or our subsidiaries would be able to make
these payments or borrow enough funds from other sources to make any such
payments. Even if we could obtain additional financing, we cannot assure you
that it would be on terms that are acceptable to us. In addition, Sygnet's
obligations under the new bank facilities are secured by substantially all
assets of Sygnet and its subsidiaries, which could impair our ability to obtain
favorable financing. See "Description of Certain Indebtedness."
 
   
WE MAY NOT HAVE THE ABILITY TO RAISE THE FUNDS NECESSARY TO FINANCE THE CHANGE
  OF CONTROL OFFER WHICH MAY BE REQUIRED BY THE INDENTURE.
    
 
    We must offer to purchase the notes upon the occurrence of a change of
control at a purchase price equal to 101% of their principal amount, plus
accrued interest. See "Description of the Notes-- Repurchase of Notes upon a
Change of Control." We cannot assure you that we will have enough funds
available at the time of any change of control to make any debt payment,
including repurchases of the notes.
 
    The new bank facilities prohibit us from prepaying the notes, including
required prepayments, following a change of control. Following a change of
control, we must first repay in full all of our indebtedness and that of our
subsidiaries the terms of which would prohibit the repurchase of the notes,
including indebtedness under the new bank facilities, or obtain any consents
required to permit the repurchase. If we were unable to repay all of that
indebtedness or if we could not obtain the necessary consents, then we would be
unable to offer to purchase the notes, resulting in a default event under the
indenture governing the notes.
 
    The events that constitute a change of control under the indenture may also
be events of default under the new bank facilities or our other indebtedness.
These events may permit the lenders under such debt to declare the debt due and
payable and, if the debt is not paid, to require that we sell assets that secure
such debt in order to repay the lenders. In this case, our ability to raise cash
to repurchase the notes would be limited and would reduce the practical benefit
of the offer to purchase provisions to the holders of the notes. See
"Description of Certain Indebtedness."
 
   
WE MAY BE UNABLE TO SUCCESSFULLY INTEGRATE OUR OPERATIONS WITH THOSE OF DOBSON
  COMMUNICATIONS, WHICH MAY HAVE A MATERIAL ADVERSE EFFECT ON OUR FINANCIAL
  CONDITION AND RESULTS OF OPERATIONS.
    
 
    We intend to integrate our operations with existing cellular operations of
Dobson Communications by centralizing pricing, customer service and marketing,
systems design, engineering, purchasing and financial and administrative
functions and from the consolidation of billing functions. However, we may face
some difficulties as a result of:
 
    - loss of key Sygnet personnel;
 
    - failure to integrate our corporate accounting, financial reporting and
      management information systems with those of Dobson Communications; and
 
                                       15
<PAGE>
    - the strain on existing personnel of Dobson Communications who will largely
      manage both businesses.
 
    We cannot assure you that Dobson Communications will be able to integrate
Sygnet's operations successfully or manage Sygnet's business. Failure to
integrate operations effectively and on a timely basis could have a material
adverse effect on our financial condition and results of operations. To date, we
have experienced no significant problems in integrating our operations with
Dobson Communications.
 
   
    WE ARE A WHOLLY OWNED SUBSIDIARY OF, AND ARE MANAGED BY, DOBSON
COMMUNICATIONS WHICH MAY RESULT IN CONFLICTS OF INTEREST.
    
 
    All of our outstanding capital stock is owned by Dobson Communications. We
are controlled by Dobson Communications in such a way that may result in
conflicts of interest with respect to transactions involving Dobson
Communications and us, including negotiating the terms for providing services to
each other or enforcing any such arrangements. In addition, certain decisions
concerning our operations or financial structure may present conflicts of
interest between Dobson Communications and the holders of the notes.
 
   
    Certain of Dobson Communications' markets are close to Sygnet's markets in
Pennsylvania and New York. Although our directors who are also directors or
officers of Dobson Communications have certain fiduciary obligations to us, such
directors and Dobson Communications are in positions that may create potential
conflicts of interest with respect to certain business opportunities available
to and certain transactions involving us. In the future we may engage in
transactions with Dobson Communications and its affiliates. Everett R. Dobson,
the Chairman and Chief Executive Officer of Dobson Communications, serves as our
Chairman and Chief Executive Officer. In addition, G. Edward Evans, President
and Chief Operating Officer of Dobson Communications' cellular operations,
serves as our President and Chief Operating Officer; Bruce R. Knooihuizen, the
Vice President and Chief Financial Officer of Dobson Communications, serves as
our Vice President and Chief Financial Officer; and Stephen T. Dobson, the
Secretary of Dobson Communications, serves as our Treasurer and Secretary.
Neither Everett R. Dobson, Mr. Evans, Mr. Knooihuizen, nor Stephen T. Dobson is
obligated to present to us any particular investment opportunity which comes to
their attention, even if such opportunity is of a character which might be
suitable for investment by us. Instead, they will review all investment
opportunities for Dobson Communications and all of its subsidiaries and
affiliates.
    
 
   
WE FACE INTENSE COMPETITION IN OUR BUSINESS AND MANY OF OUR COMPETITORS HAVE
  GREATER RESOURCES THAN DO WE.
    
 
   
    We face intense competition in many of the areas in which we operate.
Currently, the FCC authorizes only two cellular licensees to operate in each
license area. We compete in each of our markets with one other cellular licensee
for subscribers based principally upon price, the services and enhancements
offered, the technical quality of the cellular system, customer service, system
coverage and capacity. We also compete, although to a lesser extent, with
resellers, paging companies and landline telephone service providers. Many of
our existing and potential competitors have greater financial, personnel,
technical, marketing and other resources than do we.
    
 
   
    Our cellular operations may face increased competition from entities that
use other communications technologies or other radio frequency spectrum such as
broadband PCS licensees and enhanced specialized mobile radio licensees. We may
face competition from other technologies developed in the future including, but
not limited to, satellite systems and services provided over spectrum allocated
to the Wireless Communications Services and General Wireless Communications
Services. See "Business-- Competition."
    
 
                                       16
<PAGE>
   
OUR BUSINESS IS AFFECTED BY RAPID AND SIGNIFICANT TECHNOLOGICAL CHANGES WHICH
  MAY REQUIRE US TO SELECT NEW TECHNOLOGY BEFORE WE CAN ACCURATELY PREDICT ITS
  EFFECT ON OUR OPERATIONS.
    
 
    The telecommunications industry is subject to rapid and significant changes
in technology, including advancements protected by intellectual property laws.
We cannot assure you that our current technologies will be compatible with
enhanced technologies in the future. We may be required to select in advance one
technology over another. At the time we must make our investment, we may be
unable to accurately predict which technology will prove the most economic,
efficient or capable of attracting customer usage. We also face uncertainty as
to the extent of future customer demand as well as the extent to which airtime
and monthly access rates may continue to decline.
 
   
OUR BUSINESS DEPENDS ON A LIMITED NUMBER OF KEY PERSONNEL.
    
 
    Management and operating personnel at Dobson Communications also manage and
oversee our operations. The loss of certain of these individuals could have a
material adverse effect on us. We believe that our ability to successfully
manage our planned growth will depend in large part on the ability of Dobson
Communications to attract and retain highly skilled and qualified personnel. See
"Management."
 
   
WE DEPEND ON THIRD-PARTY SERVICE MARKS TO MARKET OUR PRODUCTS AND SERVICES. THE
  LOSS OF THE RIGHT TO USE THE SERVICE MARKS COULD ADVERSELY AFFECT OUR
  BUSINESS.
    
 
    We intend to continue to use the registered service mark CELLULAR
ONE-Registered Trademark- to promote our products and services. We have
five-year contracts with the owner of the CELLULAR ONE-Registered Trademark-
service mark for three of our four markets. These contracts begin to expire in
2001, and we have an option to renew each contract for two additional five-year
terms. However, under these agreements, we must meet specified operating and
service quality standards. See "Business--Service marks." If these agreements
are not renewed or if we fail to meet the applicable quality standards, our
ability both to attract new subscribers and retain existing subscribers could be
impaired.
 
    In addition, AT&T Wireless, which had been the single largest user of the
CELLULAR ONE-Registered Trademark- name, has significantly reduced its use of
the brand name as a primary service mark. If, for this or some other reason
beyond our control, the CELLULAR ONE-Registered Trademark- mark were to suffer
diminished marketing appeal, our ability both to attract new subscribers and
retain existing subscribers could be materially impaired.
 
   
THE APPLICABILITY OF FRAUDULENT CONVEYANCE STATUTES COULD ADVERSELY AFFECT THE
  NOTES.
    
 
    Various laws enacted to protect creditors may apply to our incurrence of
indebtedness and other obligations in connection with the Sygnet acquisition and
its related transactions, including the issuance of the notes. If a court were
to find in a lawsuit by one or more of our unpaid creditors or its or their
representatives that we did not receive fair consideration or reasonably
equivalent value for incurring such indebtedness or obligation and, at the time
of such incurrence:
 
    - we were insolvent;
 
    - we were rendered insolvent by reason of such incurrence;
 
    - we were engaged in a business or transaction for which our remaining
      assets constituted unreasonably small capital; or
 
    - we intended to incur or believed we would incur obligations beyond our
      ability to pay such obligations as they mature,
 
such court, subject to applicable statutes of limitation, could decide to
invalidate, in whole or in part, such indebtedness and obligations as fraudulent
conveyances or subordinate such indebtedness and obligations to our existing or
future creditors.
 
    The measure of insolvency for purposes of determining whether we made a
fraudulent conveyance will vary depending on the law of the jurisdiction which
is being applied. Generally, however, we would be
 
                                       17
<PAGE>
considered insolvent at a particular time if the sum of our debts was then
greater than the fair value all of our property or if the present fair saleable
value of our assets was then less than the amount that would be required to pay
our probable liabilities on our existing debts as they became due. On the basis
of Sygnet's historical financial information, Sygnet's recent operating history
and other factors, our management believes that:
 
    - we were not rendered insolvent by the Sygnet acquisition and its related
      transactions,
 
    - we have sufficient capital for the business in which we are engaged, and
 
    - we will be able to pay our debts as they mature.
 
    However, we have not obtained any independent opinion regarding such issues.
In addition, we cannot assure you as to what standard a court would apply in
making such determinations. See "Management's Discussion and Analysis of
Financial Condition and Results of Operations."
 
   
OUR BUSINESS IS REGULATED AND THERE IS POTENTIAL FOR ADVERSE REGULATORY CHANGE.
  WE MAY BE UNABLE TO OBTAIN NECESSARY REGULATORY APPROVALS.
    
 
    The FCC regulates the licensing, construction, operation, acquisition and
sale of our cellular systems, as well as the number of cellular and other
wireless licensees permitted in each of our markets. Changes in the regulation
of wireless activities and wireless carriers or the loss of any of our licenses
or licensed areas could have a material adverse effect on our operations. All
cellular licenses in the United States must be renewed after their initial
ten-year term. In addition, some aspects of the Telecommunications Act may place
additional burdens upon us or subject us to increased competition and increase
our costs of doing business. See "Business--Regulation."
 
    Moreover, our cellular licenses begin to expire in October 2000. We believe
that each of these licenses will be renewed based upon FCC rules establishing a
presumption in favor of licensees that have complied with their regulatory
obligations during the initial ten year license period. We have already received
license renewals for several of our cellular licenses and are not aware of any
circumstances that would preclude the gain of future renewals. However, we
cannot give you any assurance that our future renewal applications will be free
of challenge or will be granted by the FCC. See "Business--Regulation."
 
   
EQUIPMENT FAILURES AND NATURAL DISASTERS MAY ADVERSELY AFFECT OUR OPERATIONS.
    
 
    A major equipment failure or a natural disaster affecting our central
switching office, our microwave links or certain of our cell sites could have a
material adverse effect on our operations.
 
   
OUR RELIANCE ON ONE VENDOR FOR OUR CUSTOMER BILLING MAY ADVERSELY AFFECT THE
  TIMING OF OUR RECEIPT OF FUNDS.
    
 
   
    We rely primarily on one vendor to produce all of our customer billings. If
this billing vendor for any reason were to encounter significant problems in the
performance of its billing functions for us, our ability to generate billings to
our customers would be materially impaired until a new arrangement could be
established, which may adversely affect the timing of our receipt of funds.
    
 
   
THE POTENTIAL FAILURE OF COMPUTER SYSTEMS TO BECOME YEAR 2000 COMPLIANT MAY
  ADVERSELY AFFECT OUR OPERATIONS.
    
 
   
    The Year 2000 issue exists because many computer systems and applications,
including those embedded in equipment and facilities, use two digit rather than
four digit date fields to designate an applicable year. As a result, the systems
and applications may not properly recognize the year 2000 or process data that
includes it, potentially causing data miscalculations, inaccuracies, operational
malfunctions or failures. In our business, such failures could result in our
failure to deliver calls to customers or bill customers for services that we
provide to them.
    
 
                                       18
<PAGE>
   
    In April 1998, we established a multi-disciplined team to perform a Year
2000 impact analysis. The team consists of representatives from each of our
lines of business, as well as representatives from key corporate departments,
and is headed by a full-time Year 2000 compliance manager. The team created a
Year 2000 assessment methodology which brought a structured approach to the
assessment and management reporting process, as well as disaster recovery
approach.
    
 
   
    To date, we have completed an inventory of our automated systems and
services and an impact analysis that identified significant risk areas by line
of business, specific compliance requirements and costs and estimated completion
dates for affected systems. We have been in contact with all of the vendors of
products and services that we believe are critical to our operations. The
representation from our vendors pertaining to Year 2000 compliance has come in
writing directly to us, in contracts, and by accessing Year 2000 information
available at their Web sites. While all of the vendors have provided some type
of assurance that their products will be Year 2000 compliant, not all have
provided us expressly with a "Year 2000 Compliance Statement" and/or a "Year
2000 Warranty." If our automated systems and those of our vendors are not Year
2000 compliant, we could experience interruptions in services provided by and to
us, which could materially reduce our operating cash flow. See "Management's
Discussion and Analysis of Financial Condition and Results of Operations" for a
further discussion of the Year 2000 issue and the potential impact on our
business.
    
 
   
YOU MAY FIND IT DIFFICULT TO SELL YOUR NOTES.
    
 
    Currently, there is no public market for the new notes or the old notes. We
do not intend to apply for listing of the notes on any securities exchange or on
any automated dealer quotation system. Although the initial purchasers have
informed us that they intend to make a market in the notes, they are not
obligated to do so and may discontinue any such market at any time without
notice. In addition, such market making activity may be limited during this
exchange offer or during an offering under a shelf registration statement should
we decide to file one. As a result, we can make no assurances to you as to the
development or liquidity of any market for the notes, your ability to sell the
notes, or the price at which you may be able to sell the notes. Future trading
prices of the notes will depend on many factors, including among other things,
prevailing interest rates, our operating results and the market for similar
securities. Historically, the market for securities similar to the notes,
including non-investment grade debt, has been subject to disruptions that have
caused substantial volatility in the prices of such securities. We cannot assure
you that, if a market develops, it will not be subject to similar disruptions.
 
   
THE MARKET VALUE OF THE NEW NOTES COULD BE ADVERSELY AFFECTED IF ONLY A LIMITED
  NUMBER OF NEW NOTES ARE AVAILABLE FOR TRADING.
    
 
    To the extent that a large amount of old notes are not tendered or are
tendered and not accepted in the exchange offer, the trading market for the new
notes could be materially adversely affected. Generally, a limited amount, or
"float," of a security could result in less demand to purchase such security
and, as a result, could result in lower prices for such security. We cannot
assure you that a sufficient number of old notes will be exchanged for new notes
in the exchange offer so that this does not occur.
 
   
UNEXCHANGED OLD NOTES WILL CONTINUE TO HAVE LIMITATIONS ON TRANSFERABILITY.
    
 
    If you do not exchange your outstanding notes for new notes pursuant to the
exchange offer, your notes will remain restricted securities. Outstanding notes
will continue to be subject to the following restrictions on transfer:
 
    - outstanding notes may be resold only if registered pursuant to the
      Securities Act, if an exemption from registration is available thereunder,
      or if neither such registration nor such exemption is required by law,
 
    - outstanding notes shall bear a legend restricting transfer in the absence
      of registration or an exemption therefrom, and
 
                                       19
<PAGE>
    - a holder of outstanding notes who desires to sell or otherwise dispose of
      all or any part of its outstanding notes under an exemption from
      registration under the Securities Act, if requested by us, must deliver to
      us an opinion of independent counsel experienced in Securities Act
      matters, reasonably satisfactory in form and substance to us, that such
      exemption is available.
 
FORWARD-LOOKING STATEMENTS
 
    The statements, other than statements of historical facts included in this
prospectus, including the descriptions of our plans, our strategies, planned
capital expenditures, Year 2000 preparedness and anticipated cost savings, are
forward-looking statements. You can generally indentify forward-looking
statements by the use of forward-looking terminology such as "may," "will,"
"expect," "intend," "estimate," "anticipate" or "believe." We believe that the
expectations reflected in such forward-looking statements are accurate. However,
our actual future performance will differ materially from such statements.
Specifically, our plans involve a number of risks and uncertainties. Important
factors that could cause actual capital expenditures, Year 2000 preparedness,
acquisition activity, or our performance to differ materially from our plans
include, without limitation:
 
    - our ability to satisfy the financial covenants of its existing and future
      debt instruments and to raise additional capital;
 
    - our ability to integrate our operations with Dobson's existing operations
      and to successfully market our services and products to existing and new
      customers;
 
    - our ability to install equipment and expand and upgrade our systems in a
      timely manner and to manage our rapid growth successfully;
 
    - our ability to compete effectively against competitors with greater
      financial, technical, marketing and other resources and respond
      effectively to changes in end-user requirements and preferences;
 
    - the inability of third party vendors to provide products and services
      which are Year 2000 compliant;
 
    - the development of other technologies and products that may gain more
      commercial acceptance than ours; and
 
    - adverse regulatory changes.
 
We cannot assure you that anticipated future results will be achieved. Actual
events or results may differ materially as a result of risks to which we are or
may be subject. You should not place undue reliance on these forward-looking
statements which speak only as of the date of this prospectus. Except as
required by law, we do not intend to update or revise these forward-looking
statements to reflect events or circumstances after the date hereof including,
without limitation, changes in our business strategy or planned capital
expenditures, or to reflect the occurrence of unanticipated events.
 
   
                                USE OF PROCEEDS
    
 
    This exchange offer is intended to satisfy our obligation under our
Registration Rights Agreement dated as of December 23, 1998, with NationsBanc
Montgomery Securities LLC, Lehman Brothers Inc., First Union Capital Markets,
Inc., a division of Wheat First Securities, Inc. and TD Securities (USA) Inc.,
as initial purchasers. We will not receive any cash proceeds from the issuance
of the new notes. We will only receive old notes with a total principal amount
equal to the total principal amount of the new notes we issue in the exchange
offer.
 
                                       20
<PAGE>
   
                               THE EXCHANGE OFFER
    
 
PURPOSE AND EFFECT OF THE EXCHANGE OFFER
 
   
    At the time we issued the old notes we agreed to:
    
 
   
    - file a registration statement to register the exchange of the old notes
      for new notes (together with the old notes the "notes")
    
 
    - to use our reasonable best efforts to cause the registration statement to
      become effective under the Securities Act, and
 
   
    - to consummate the exchange offer within 180 days after the issue date. In
      the event that applicable interpretations of the staff of the Securities
      and Exchange Commission the ("SEC") do not permit us to effect the
      exchange offer, or if certain holders of the old notes notify us that they
      are not eligible to participate in, or would not receive freely tradeable
      new notes in exchange for tendered old notes in the exchange offer, we
      have agreed to use our reasonable best efforts to cause to become
      effective a shelf registration statement with respect to the resale of the
      old notes and to keep the shelf registration statement effective until
      December 2001. If the exchange offer is not completed by June 21, 1999, we
      will be obligated to pay liquidated damages to holders of the old notes.
    
 
   
    If you wish to exchange old notes for new notes you must represent that:
    
 
   
    - you will acquire any new notes in the ordinary course of your business,
    
 
   
    - you have no arrangement with any person to participate in the distribution
      of the new notes, and
    
 
    - you are not our "affiliate", as defined in Rule 405 of the Securities Act,
      or, if you are an affiliate, that you will comply with the registration
      and prospectus delivery requirements of the Securities Act to the extent
      applicable.
 
   
RESALE OF NEW NOTES
    
 
   
    Based on interpretations by the staff of the SEC as set forth in no-action
letters issued to third-parties, we believe that, except as described below,
otherwise you may offer for resale, or transfer the new notes issued in the
exchange offer in exchange for old notes, without compliance with the
registration and prospectus delivery provisions of the Securities Act if:
    
 
   
    - you acquire the new notes in the ordinary course of your business, and
    
 
   
    - you do not intend to participate and have no arrangement or understanding
      with any person to participate in the distribution of the new notes.
    
 
    - you are not our "affiliate" within the meaning of Rule 405 under the
      Securities Act.
 
   
    If you tender in the exchange offer with the intention or for the purpose of
participating in a distribution of the new notes you must comply with the
registration and prospectus delivery requirements of the Securities Act in
connection with a secondary resale transaction. Unless an exemption from
registration is otherwise available, any such resale transaction should be
covered by an effective registration statement containing the selling security
holder's information required by Item 507 of Regulation S-K under the Securities
Act. This prospectus may be used for an offer to resell, resale or other
retransfer of new notes only as specifically set forth in this document.
    
 
   
    Only broker-dealers who acquired the old notes as a result of market-making
activities or other trading activities may participate in the exchange offer.
Each broker-dealer that receives new notes for its own account in exchange for
old notes, where such old notes were acquired by such broker-dealer as a result
of market-making activity or other trading activities, must acknowledge that it
will deliver a
    
 
                                       21
<PAGE>
   
prospectus in connection with any resale of such new notes. See "Plan of
Distribution." We intend to rely on the existing no-action letters and do not
intend to request a separate no-action letter.
    
 
TERMS OF THE EXCHANGE OFFER
 
   
    We will accept for exchange any and all old notes properly tendered and not
withdrawn prior to the expiration date of the exchange offer upon the terms and
subject to the conditions set forth in this prospectus and in the letter of
transmittal.
    
 
   
    - We will issue $1,000 principal amount of new notes in exchange for each
      $1,000 principal amount of outstanding old notes surrendered pursuant to
      the exchange offer.
    
 
   
    - You may tender old notes only in $1,000 increments.
    
 
   
    - The form and terms of the new notes will be the same as the form and terms
      of the old notes except that the new notes will be registered under the
      Securities Act and will not bear legends restricting their transfer.
    
 
   
    - The new notes will evidence the same debt as the old notes.
    
 
   
    - The new notes will be issued under and entitled to the benefits of the
      indenture, which also authorized the issuance of the old notes, such that
      both series will be treated as a single class of debt securities under the
      indenture. See "Description of the Notes--General."
    
 
   
    - The exchange offer is not conditioned upon any minimum aggregate principal
      amount of old notes being tendered for exchange.
    
 
   
    As of the date of this prospectus, $200.0 million of the old notes are
outstanding. We are sending this prospectus, together with the letter of
transmittal, to all registered holders of old notes. We have not fixed any
record date for determining registered holders of old notes entitled to
participate in the exchange offer. We intend to conduct the exchange offer in
accordance with the provisions of the registration rights agreement and the
applicable requirements of the Securities Exchange Act, and the rules and
regulations of the SEC. old notes that are not tendered for exchange in the
exchange offer will remain outstanding and continue to accrue interest and will
be entitled to the rights and benefits such holders have under the indenture and
the registration rights agreement.
    
 
   
    Our oral or written notice of acceptance to the exchange agent and
compliance with the provisions of the registration rights agreement will
contitute our acceptance for exchange of properly tendered notes. The exchange
agent will act as agent for the tendering holders for the purposes of receiving
the new notes from us. We expressly reserve the right to amend or terminate the
exchange offer, and not to accept for exchange any old notes not accepted for
exchange, upon the occurrence of any of the conditions specified below under
"--Certain Conditions to the Exchange Offer."
    
 
   
    You will not be required to pay brokerage commissions or fees or, subject to
the instructions in the letter of transmittal, transfer taxes if you tender old
notes in the exchange offer. We will pay all charges and expenses, other than
certain applicable taxes described below, in connection with the exchange offer.
See "--Fees and Expenses."
    
 
EXPIRATION DATE; EXTENSIONS; AMENDMENTS
 
    The exchange offer expires at 5:00 p.m., New York City time on             ,
1999, unless we, in our sole discretion, extend the exchange offer, in which
case the expiration date will be the latest date and time to which the exchange
offer is extended.
 
    We will notify the exchange agent of any extension by oral or written notice
and we will issue a press release notifying you of the extension, each prior to
9:00 a.m., New York City time, on the next business day after the expiration
date.
 
                                       22
<PAGE>
    We reserve the right, in our sole discretion,
 
   
    - to delay accepting any old notes for exchange, to extend the exchange
      offer or to terminate the exchange offer if any of the conditions set
      forth below under "--Certain Conditions to the Exchange Offer" have not
      been satisfied, by giving oral or written notice of such delay, extension
      or termination to the exchange agent, or
    
 
    - to amend the terms of the exchange offer in any manner.
 
    We will, as promptly as practicable, notify you orally or in writing if
there is any such delay in acceptance, extension, termination or amendment. If
the exchange offer is amended in a manner determined by us to constitute a
material change, we will promptly disclose the amendment by means of a
prospectus supplement that we will distribute to you. We will also extend the
exchange offer, depending upon the significance of the amendment and the manner
of disclosure to the registered holders, if the exchange offer would otherwise
expire during that period.
 
    Without limiting the manner in which we may choose to make a public
announcement of any delay, extension, amendment or termination of the exchange
offer, we have no obligation to communicate any such public announcement, other
than by making a timely release to an appropriate news agency.
 
   
    If we extend the exchange offer, or if we are delayed in accepting for
exchange of, or in issuing and exchanging the new notes for, any old notes, or
if we are unable to accept for exchange of, or issue new notes for, any old
notes offer for any reason, then, without prejudice to our rights under the
exchange offer, the exchange agent may, on our behalf, retain all old notes
tendered, and the old notes may not be withdrawn except as otherwise provided
below in "--Withdrawal of Tenders." Our right to delay acceptance for exchange
of, or the issuance and the exchange of the new notes for, any old notes is
subject to applicable law, including Rule 14e-1(c) under the Exchange Act, which
requires that we either deliver the new notes or return the old notes deposited
by or on behalf of the holders thereof promptly after termination or withdrawal
of the exchange offer.
    
 
   
INTEREST ON THE NEW NOTES
    
 
   
    The new notes will bear interest at a rate of 12 1/4% per annum, payable
semi-annually on June 15 and December 15 of each year, commencing on June 15,
1999. Holders of new notes will receive interest on June 15, 1999 from the date
of initial issuance of the new notes, plus an amount equal to the accrued
interest on the exchanged old notes through such date. Interest on the old notes
accepted for exchange will cease to accrue upon issuance of the new notes.
    
 
CERTAIN CONDITIONS TO THE EXCHANGE OFFER
 
   
    Notwithstanding any other term of the exchange offer, we are not required to
accept for exchange, or exchange any new notes for, any old notes, and we may
terminate the exchange offer before the acceptance of any old notes for
exchange, if:
    
 
    - any action or proceeding is instituted or threatened in any court or by or
      before any governmental agency with respect to the exchange offer which,
      in our reasonable judgment, might materially impair our ability to proceed
      with the exchange offer; or
 
    - any law, statute, rule or regulation is proposed, adopted or enacted, or
      any existing law, statute, rule or regulation is interpreted by the staff
      of the SEC, which, in our reasonable judgment, might materially impair our
      ability to proceed with the exchange offer; or
 
    - any governmental approval has not been obtained, which approval we, in our
      reasonable discretion, deem necessary for the consummation of the exchange
      offer.
 
    If we determine in our reasonable judgment that any of the above conditions
are not satisfied, we may
 
                                       23
<PAGE>
   
    - refuse to accept any old notes and return all old notes to the tendering
      holders,
    
 
   
    - extend the exchange offer and retain all old notes tendered prior to the
      expiration of the exchange offer, subject, however, to the rights of
      holders to withdraw such old notes, or
    
 
   
    - waive unsatisfied conditions with respect to the exchange offer and accept
      all properly tendered old notes which have not been withdrawn.
    
 
    If any waiver constitutes a material change to the exchange offer, we will
promptly disclose such waiver by means of a prospectus supplement that we will
distribute to you. We will also extend the exchange offer for a period of five
to ten business days, depending on the significance of the waiver and the manner
of disclosure to the registered holders, if the exchange offer would otherwise
expire during such five to ten day business period.
 
    The above conditions are for our sole benefit. We may assert them regardless
of the circumstances giving rise to the condition or waive the condition in
whole or in part at any time in our reasonable judgment. Our failure at any time
to exercise any of the foregoing rights shall not be deemed a waiver of any
right. The above rights are ongoing rights which we may assert at any time.
 
   
    In addition, we will not accept for exchange any old notes tendered, and no
new notes will be issued in exchange for any such old notes, if at such time any
stop order shall be threatened or in effect with respect to the registration
statement of which the prospectus constitutes a part or the qualification of the
indenture under the Trust Indenture Act of 1939.
    
 
PROCEDURES FOR TENDERING
 
   
    Subject to the terms and conditions of this prospectus and the letter of
transmittal, only a holder of old notes may tender such old notes in the
exchange offer. In order to tender in the exchange offer, you must complete,
sign and date the letter of transmittal, or facsimile thereof, have your
signature guaranteed if required by the letter of transmittal, and mail or
otherwise deliver the letter of transmittal or a facsimile to United States
Trust Company of New York, as the exchange agent, prior to 5:00 p.m., New York
City time, on the expiration date or, in the alternative, comply with the
Depository Trust Corporation's Automated Tender Offer Program procedures
described below. By executing the letter of transmittal, you will represent to
us that, among other things:
    
 
    - you are acquiring any exchange notes you receive in the ordinary course of
      your business,
 
    - you have no arrangement with any person to participate in the distribution
      of the exchange notes, and
 
    - you are not our affiliate or, if you are our affiliate, you will comply
      with the registration and prospectus delivery requirements of the
      Securities Act to the extent applicable.
 
    In addition, either:
 
   
    - the exchange agent must receive the old notes along with a properly
      completed and duly executed letter of transmittal, or
    
 
   
    - the exchange agent must receive a timely confirmation of book-entry
      transfer, which we call a book-entry confirmation, of such old notes, if
      such procedure is available, into the exchange agent's account at the
      Depository Trust Corporation, which we call the Book-Entry Transfer
      Facility, pursuant to the procedure for book-entry transfer described
      below or properly transmitted agent's message, as defined below, prior to
      the expiration date, or
    
 
    - you must comply with the guaranteed delivery procedures described below.
 
                                       24
<PAGE>
    The exchange agent must receive the letter of transmittal and other required
documents at the address set forth below under "--Exchange Agent" prior to 5:00
p.m., New York City time, on the Expiration Date for the tender to be effective.
 
    Any tender which is not withdrawn prior to the expiration date will
constitute an agreement between you and us in accordance with the terms and
subject to the conditions set forth in this prospectus and in the letter of
transmittal.
 
   
    YOU MUST ELECT AND ACCEPT THE RISK OF THE METHOD OF DELIVERY OF OLD NOTES,
THE LETTER OF TRANSMITTAL AND ALL OTHER REQUIRED DOCUMENTS TO THE EXCHANGE
AGENT. INSTEAD OF DELIVERY BY MAIL, WE RECOMMEND THAT HOLDERS USE AN OVERNIGHT
OR HAND DELIVERY SERVICE. IN ALL CASES, YOU SHOULD ALLOW SUFFICIENT TIME TO
ASSURE DELIVERY TO THE EXCHANGE AGENT BEFORE THE EXPIRATION DATE. DO NOT SEND
YOUR LETTER OF TRANSMITTAL OR OLD NOTES TO US. YOU MAY REQUEST YOUR RESPECTIVE
BROKERS, DEALERS, COMMERCIAL BANKS, TRUST COMPANIES OR OTHER NOMINEES TO EFFECT
THE ABOVE TRANSACTIONS FOR YOU.
    
 
   
    Any beneficial owner whose old notes are registered in the name of a broker,
dealer, commercial bank, trust company or other nominee and who wishes to tender
should contact the registered holder promptly and instruct such registered
holder of old notes to tender on the beneficial owner's behalf. If the
beneficial owner wishes to tender on the owner's own behalf, the owner must,
prior to completing and executing the letter of transmittal and delivering the
owner's old notes, either make appropriate arrangements to register ownership of
the old notes in the owner's name or obtain a properly completed bond power from
the registered holder of old notes. The transfer of registered ownership may
take considerable time and may not be able to be completed prior to the
expiration date.
    
 
   
    Signatures on a letter of transmittal and a notice of withdrawal described
below must be guaranteed by an eligible institution, as defined below, unless
the old notes are tendered:
    
 
    - by a registered holder who has not completed the box entitled Special
      Issuance Instructions or "Special Delivery Instructions" on the letter of
      transmittal, or
 
    - for the account of an eligible institution.
 
    In the event that signatures on a letter of transmittal or a notice of
withdrawal are required to be guaranteed, the guarantor must be an eligible
institution, which means a member firm of a registered national securities
exchange or of the National Association of Securities Dealers, Inc., a
commercial bank or trust company having an office or correspondent in the United
States or an "eligible guarantor institution" within the meaning of Rule 17Ad-15
under the Exchange Act which is a member of one of the recognized signature
guarantee programs identified in the letter of transmittal.
 
   
    If the letter of transmittal is signed by a person other than the registered
holder of any old notes listed in the letter, the old notes must be endorsed or
accompanied by a properly completed bond power, signed by the registered holder
as the registered holder's name appears on the old notes with the signature
thereon guaranteed by an eligible institution.
    
 
   
    If the letter of transmittal or any old notes or bond powers are signed by
trustees, executors, administrators, guardians, attorneys-in-fact, officers of
corporations or others acting in a fiduciary or representative capacity, the
persons should so indicate when signing, and unless waived by us, provide
evidence satisfactory to us of their authority to so act must be submitted with
the letter of transmittal.
    
 
   
    The exchange agent and the Depository Trust Corporation have confirmed that
any financial institution that is a participant in the Depository Trust
Corporation's system may utilize the Depository Trust Corporation's Automated
Tender Offer Program to tender. Accordingly, participants in the Depository
Trust Corporation's Automated Tender Offer Program may, in lieu of physically
completing and signing the letter of transmittal and delivering it to the
exchange agent, electronically transmit their acceptance of the exchange offer
by causing the Depository Trust Corporation to transfer the old notes to the
exchange agent in accordance with the Depository Trust Corporation's Automated
Tender Offer Program procedures for
    
 
                                       25
<PAGE>
transfer. The Depository Trust Corporation will then send an agent's message to
the exchange agent. The term agent's message means a message transmitted by the
Depository Trust Corporation received by the exchange agent and forming part of
the book-entry confirmation, which states that:
 
   
    - the Depository Trust Corporation has received an express acknowledgment
      from a participant in the Depository Trust Corporation's Automated Tender
      Offer Program that is tendering old notes which are the subject of such
      book entry confirmation,
    
 
    - the participant has received and agrees to be bound by the terms of the
      letter of transmittal, or, in the case of an agent's message relating to
      guaranteed delivery, that such participant has received, and
 
    - the participant agrees to be bound by the applicable notice of guaranteed
      delivery, and that the agreement may be enforced against such participant.
 
   
    We will determine all questions as to the validity, form, eligibility,
including time of receipt, acceptance of tendered old notes and withdrawal of
tendered old notes, in the exercise of our reasonable judgment. Our
determination will be final and binding. We reserve the absolute right to reject
any and all old notes not properly tendered or any old notes our acceptance of
which would, in the opinion of our counsel, be unlawful. We also reserve the
right to waive any defects, irregularities or conditions of tender as to
particular old notes. Our interpretation of the terms and conditions of the
exchange offer, including the instructions in the letter of transmittal, will be
final and binding on all parties. Unless waived, you must cure any defects or
irregularities in connection with tenders of old notes within such time as we
shall determine. Although we intend to notify holders of defects or
irregularities with respect to tenders of old notes, neither we, the exchange
agent nor any other person shall incur any liability for failure to give such
notification. Tenders of old notes will not be deemed to have been made until
such defects or irregularities have been cured or waived. Any old notes received
by the exchange agent that are not properly tendered and as to which the defects
or irregularities have not been cured or waived will be returned by the exchange
agent to the tendering holder, unless otherwise provided in the letter of
transmittal, as soon as practicable following the expiration date.
    
 
   
    In all cases, we will issue new notes for old notes that we accept for
exchange in the exchange offer only after timely receipt by the exchange agent
of old notes or a timely book-entry confirmation of the old notes into the
exchange agent's account at the book-entry transfer facility, a properly
completed and duly executed letter of transmittal and all other required
documents. If we do not accept any tendered old notes for exchange for any
reason set forth in the terms and conditions of the exchange offer or if old
notes are submitted for a greater principal amount than the holder desires to
exchange, we will return the unaccepted or non-exchanged old notes without
expense to the tendering holder thereof, or, in the case of old notes tendered
by book-entry transfer into the exchange agent's account at the book-entry
transfer facility pursuant to the book-entry transfer procedures described
below, such non-exchanged notes will be credited to an account maintained with
such book- entry transfer facility, as promptly as practicable after the
expiration or termination of the exchange offer.
    
 
BOOK-ENTRY TRANSFER
 
   
    The exchange agent will make a request to establish an account with respect
to the old notes at the book-entry transfer facility for purposes of the
exchange offer within two business days after the date of this prospectus. Any
financial institution that is a participant in the book-entry transfer
facility's system may make book-entry delivery of old notes by causing the
book-entry transfer facility to transfer the old notes into the exchange agent's
account at the book-entry transfer facility in accordance with the book-entry
transfer facility's procedures for transfer. However, although you may deliver
the notes through book-entry transfer at the book-entry transfer facility the
letter of transmittal or facsimile, with any required signature guarantees and
any other required documents, must, in any case, be transmitted to and received
by the exchange agent at the address set forth below under "--Exchange Agent" on
or prior to
    
 
                                       26
<PAGE>
the expiration date. If the guaranteed delivery procedures described below are
to be complied with, within the time period provided under such procedures.
Delivery of documents to the book-entry transfer facility does not constitute
delivery to the exchange agent.
 
GUARANTEED DELIVERY PROCEDURES
 
   
    If you wish to tender your Old Notes and whose old notes are not immediately
available or you cannot deliver your old notes, the letter of transmittal or any
other required documents to the exchange agent prior to the expiration date, you
may effect a tender if:
    
 
    - The tender is made through an eligible institution;
 
   
    - Prior to the expiration date, the exchange agent receives from an eligible
      institution a properly completed and duly executed notice of guaranteed
      delivery by facsimile transmission, mail or hand delivery, setting forth
      the name and address of the holder, the registered number(s) of such old
      notes and the principal amount of old notes tendered, stating that the
      tender is being made and guaranteeing that, within three (3) New York
      Stock Exchange trading days after the expiration date, the letter of
      transmittal, or facsimile, together with the old notes or a book-entry
      confirmation, as the case may be, and any other documents required by the
      letter of transmittal will be deposited by the eligible institution with
      the exchange agent; and
    
 
   
    - a properly completed and executed letter of transmittal, or facsimile
      thereof, or properly transmitted Agent's Message as well as all tendered
      old notes in proper form for transfer or a book-entry confirmation, as the
      case may be, and all other documents required by the letter of
      transmittal, are received by the exchange agent within three (3) New York
      Stock Exchange trading days after the expiration date.
    
 
   
    Upon request, the exchange agent will send you a notice of guaranteed
delivery if you wish to tender their old notes according to the guaranteed
delivery procedures set forth above.
    
 
WITHDRAWAL OF TENDERS
 
   
    Except as otherwise provided, you may withdraw your tender of old notes at
any time prior to 5:00 p.m., New York City time, on the expiration date.
    
 
    For a withdrawal to be effective:
 
    - the exchange agent must receive a written notice of withdrawal at one of
      the addresses set forth below under "--Exchange Agent," or
 
    - you must comply with the appropriate procedures of the Depository Trust
      Company's automated tender offer program system.
 
   
    Any notice of withdrawal must specify the name of the person having tendered
the old notes to be withdrawn, identify the old notes to be withdrawn, including
the principal amount of such old notes, and, where certificates of old notes
have been transmitted, specify the name in which such old notes were registered,
if different from that of the withdrawing holder. If you have delivered or
otherwise identified to the exchange agent certificates for old notes, then,
prior to the release of these certificates, you must also submit the serial
numbers of the particular certificates to be withdrawn and a signed notice of
withdrawal with signatures guaranteed by an eligible institution unless you are
an eligible institution. If you have tendered your old notes through the
procedure for book-entry transfer described above, any notice of withdrawal must
specify the name and number of the account at the book-entry transfer facility
to be credited with the withdrawn old notes and otherwise comply with the
procedures of such facility.
    
 
   
    We will determine all questions as to the validity, form and eligibility,
including time of receipt, of such notices and our determination shall be final
and binding on all parties. Any old notes so withdrawn
    
 
                                       27
<PAGE>
   
will be deemed not to have been validly tendered for exchange for purposes of
the exchange offer. We will return any old notes which have been tendered for
exchange but which are not exchanged for any reason to the holder thereof
without cost to such holder, or, in the case of old notes tendered by book-entry
transfer into the exchange agent's account at the book-entry transfer facility
pursuant to the book-entry transfer procedures described above, such old notes
will be credited to an account maintained with such book-entry transfer facility
for the old notes, as soon as practicable after withdrawal, rejection of tender
or termination of the exchange offer. If you have properly withdrawn old notes,
the old notes may be retendered by following one of the procedures described
under "--Procedures for Tendering" above at any time on or prior to the
expiration date.
    
 
EXCHANGE AGENT
 
    We have appointed United States Trust Company of New York as exchange agent
for the exchange offer. Questions and requests for assistance, requests for
additional copies of this prospectus or the letter of transmittal and requests
for notice of guaranteed delivery should be directed to the Exchange Agent
addressed as follows:
 
<TABLE>
<S>                      <C>                                 <C>
       BY MAIL:                BY OVERNIGHT COURIER:                BY HAND:
  United States Trust           United States Trust            United States Trust
  Company of New York           Company of New York            Company of New York
     P.O. Box 844                 Corporate Trust                 111 Broadway
    Cooper Station             Operations Department               Lower Level
New York, NY 10276-0844      770 Broadway - 13th Floor         New York, NY 10006
 Attn: Corporate Trust           New York, NY 10003           Attn: Corporate Trust
       Services                                                     Services
    (registered or
    certified mail
     recommended)
                            BY FACSIMILE:(212) 420-6152
                          (For eligible institutions only)
                               Confirm by Telephone:
                                   (800) 548-6565
</TABLE>
 
FEES AND EXPENSES
 
    We will bear all expenses of soliciting tenders. The principal solicitation
is being made by mail. However, we may make additional solicitations by
telegraph, telephone or in person by our officers and regular employees and
those of our affiliates.
 
    We have not retained any dealer-manager in connection with the exchange
offer and will not make any payments to broker-dealers or other soliciting
acceptances of the exchange offer. However, we will pay the Exchange Agent
reasonable and customary fees for its services and will reimburse it for its
reasonable out-of-pocket expenses in connection therewith.
 
   
    We will pay the cash expenses incurred in connection with the exchange offer
estimated in the aggregate to be approximately $100,000. These expenses include
registration fees, fees and expenses to the exchange agent and trustee,
accounting and legal fees and printing costs, and related fees and expenses.
    
 
TRANSFER TAXES
 
   
    We will pay all transfer taxes, if any, applicable to the exchange of the
old notes for new notes in the exchange offer. If, however, certificates
representing old notes for principal amounts not tendered or accepted for
exchange are to be delivered to, or are to be issued in the name of, any person
other than the
    
 
                                       28
<PAGE>
   
registered holder of notes tendered, or if tendered notes are registered in the
name of any person other than the person signing the letter of transmittal, or
if a transfer tax is imposed for any reason other than the exchange of notes in
the exchange offer, then the amount of any such transfer taxes, whether imposed
on the registered holder or any other persons, will be payable by the tendering
holder. If satisfactory evidence of payment of these taxes or exemption
therefrom is not submitted with the letter of transmittal, the amount of the
transfer taxes will be billed directly to the tendering holder.
    
 
CONSEQUENCES OF FAILURE TO EXCHANGE
 
   
    If you do not exchange your old notes for new notes in the exchange offer,
you will continue to be subject to the restrictions on transfer of such old
notes, as set forth:
    
 
   
    - in the legend on the old notes as a consequence of the issuance of the old
      notes pursuant to the exemptions from, or in transactions not subject to,
      the registration requirements of the Securities Act and applicable state
      securities laws, and
    
 
   
    - otherwise set forth in the offering memorandum dated December 16, 1998,
      distributed in connection with the offering of the old notes.
    
 
   
    In general, you may not offer for sale, or resell the old notes unless they
are registered under the Securities Act, except if there is an exemption from,
or in a transaction not subject to, the Securities Act and applicable state
securities laws. We do not currently anticipate that we will register the old
notes under the Securities Act.
    
 
                                       29
<PAGE>
   
        SELECTED CONSOLIDATED FINANCIAL AND OTHER DATA OF DOBSON/SYGNET
    
 
    Our historical consolidated financial data as of and for the period ended
December 31, 1998 have been derived from our audited consolidated financial
statements. You should read the information as set forth below in conjunction
with "Pro Forma Consolidated Financial Data," "Management's Discussion and
Analysis of Financial Condition and Results of Operations" and the consolidated
financial statements and the related notes thereto that we include elsewhere in
this prospectus.
 
    We define "earnings" as earnings before extraordinary items and accounting
changes, interest expense, amortization of deferred financing costs, taxes and
the portion of rent expense under operating leases representative of interest.
Fixed charges consist of interest expense, amortization of deferred financing
costs and a portion of rent expense under operating leases representative of
interest. For the period from inception (July 23, 1998) through December 31,
1998, Dobson/Sygnet's earnings were insufficient to cover combined fixed charges
by $1.7 million.
 
   
<TABLE>
<CAPTION>
                                                                                                HISTORICAL PERIOD
                                                                                               ENDED DECEMBER 31,
                                                                                                      1998
                                                                                              ---------------------
                                                                                                   (DOLLARS IN
                                                                                                   THOUSANDS)
<S>                                                                                           <C>
STATEMENT OF OPERATIONS DATA:
  Revenue:
    Subscriber revenue......................................................................        $   1,563
    Roaming revenue.........................................................................              664
    Equipment sales.........................................................................              191
                                                                                                      -------
    Total revenue...........................................................................            2,418
                                                                                                      -------
  Costs and expenses:
    Cost of services........................................................................              160
    Cost of equipment sales.................................................................              369
    Marketing and selling...................................................................              613
    General and administrative..............................................................              464
    Depreciation and amortization...........................................................            1,662
                                                                                                      -------
    Total costs and expenses................................................................            3,268
                                                                                                      -------
  Operating loss............................................................................             (850)
    Interest expense........................................................................             (886)
    Other income (expense), net.............................................................               20
                                                                                                      -------
    Loss before income taxes and extraordinary item.........................................           (1,716)
    Income tax benefit......................................................................              652
                                                                                                      -------
    Net loss................................................................................        $  (1,064)
                                                                                                      -------
                                                                                                      -------
</TABLE>
    
 
                                       30
<PAGE>
 
<TABLE>
<CAPTION>
                                                                                                     PERIOD
                                                                                                     ENDED
                                                                                               DECEMBER 31, 1998
                                                                                              --------------------
                                                                                                  (DOLLARS IN
                                                                                                   THOUSANDS)
<S>                                                                                           <C>
OTHER FINANCIAL DATA:
  Ratio of earnings to combined fixed charges and preferred stock dividends.................           --
  Capital expenditures, excluding cost of acquisitions......................................          N/A
 
OTHER DATA:
  Ending cellular subscribers (at period end)...............................................          178,751
  Cellular penetration (at period end)......................................................              7.5%
  Cellular churn............................................................................          N/A
  Average monthly revenue per cellular subscriber...........................................          N/A
  Cellular cell sites (at period end).......................................................              183
</TABLE>
 
<TABLE>
<CAPTION>
                                                                                               DECEMBER 31, 1998
                                                                                              --------------------
                                                                                                  (DOLLARS IN
                                                                                                   THOUSANDS)
<S>                                                                                           <C>
BALANCE SHEET DATA:
  Property and equipment, net...............................................................       $   46,994
  Total assets..............................................................................          956,738
  Total debt................................................................................          607,000
  Stockholders' equity......................................................................          143,936
</TABLE>
 
                                       31
<PAGE>
   
 SELECTED CONSOLIDATED FINANCIAL AND OTHER DATA OF SYGNET (PREDECESSOR COMPANY)
    
 
    The following table sets forth certain historical consolidated financial
data for Sygnet with respect to each of the four years in the period ended
December 31, 1997 and for the period from January 1, 1998 through December 23,
1998. The selected historical consolidated financial data for the years ended
December 31, 1994, 1995, 1996 and 1997 and for the period from January 1, 1998
through December 23, 1998 were derived from Sygnet's audited consolidated
financial statements. You should read the information as set forth below in
conjunction with "Use of Proceeds," "Pro Forma Consolidated Financial Data,"
"Management's Discussion and Analysis of Financial Condition and Results of
Operations" and the consolidated financial statements and the related notes
thereto that we include elsewhere in this prospectus.
 
    We define "earnings" as earnings before extraordinary items and accounting
changes, interest expense, amortization of deferred financing costs, taxes and
the portion of rent expense under operating leases representative of interest.
Fixed charges consist of interest expense, amortization of deferred financing
costs and a portion of rent expense under operating leases representative of
interest. For the years ended December 31, 1996 and 1997 and the period from
January 1, 1998 through December 23, 1998, Sygnet's earnings were insufficient
to cover combined fixed charges and preferred stock dividends by $4.6 million,
$22.7 million, and $14.5 million, respectively.
   
<TABLE>
<CAPTION>
                                                                                    YEAR ENDED DECEMBER 31,
                                                                          --------------------------------------------
                                                                            1994        1995        1996       1997
                                                                          ---------  -----------  ---------  ---------
                                                                          (DOLLARS IN THOUSANDS, EXCEPT PER SUBSCRIBER
                                                                                             DATA)
<S>                                                                       <C>        <C>          <C>        <C>
STATEMENT OF OPERATIONS DATA:
  Revenue:
    Subscriber revenue..................................................  $  11,312   $  17,191   $  31,785  $  55,154
    Roamer revenue......................................................      4,145       4,176       8,737     23,377
    Equipment sales.....................................................      1,172       1,529       2,417      4,323
    Other revenue.......................................................      1,420       1,681       1,607      1,680
                                                                          ---------  -----------  ---------  ---------
  Total revenue.........................................................     18,048      24,577      44,546     84,534
  Costs and expenses:
    Cost of services....................................................      3,452       3,366       5,258      8,948
    Cost of equipment sales.............................................      1,624       4,164       5,816      9,663
    General and administrative..........................................      4,467       5,564       9,852     16,976
    Selling and marketing...............................................      2,555       3,082       6,080     10,841
    Merger related costs................................................     --          --          --         --
    Depreciation and amortization.......................................      2,639       3,487      10,039     28,719
                                                                          ---------  -----------  ---------  ---------
    Total costs and expenses............................................     14,737      19,663      37,045     75,147
                                                                          ---------  -----------  ---------  ---------
  Operating income......................................................      3,311       4,914       7,501      9,387
    Interest expense....................................................       (988)     (2,660)    (11,174)   (29,902)
    Merger related costs................................................     --          --          --         --
    Other expense, net..................................................       (601)       (304)       (195)      (101)
                                                                          ---------  -----------  ---------  ---------
    Income (loss) before extraordinary item.............................      1,722       1,950      (3,868)   (20,616)
    Extraordinary loss on extinguishment of debt........................     --          --          (1,420)    --
                                                                          ---------  -----------  ---------  ---------
    Net income (loss)...................................................  $   1,722   $   1,950   $  (5,288) $ (20,616)
                                                                          ---------  -----------  ---------  ---------
                                                                          ---------  -----------  ---------  ---------
    Dividends and accretion on preferred stock..........................     --          --            (718)    (2,122)
                                                                          ---------  -----------  ---------  ---------
    Net income (loss) applicable to common stockholders.................  $   1,722   $   1,950   $  (6,006) $ (22,738)
                                                                          ---------  -----------  ---------  ---------
                                                                          ---------  -----------  ---------  ---------
    Net income (loss) per share applicable to common stockholders:
      Before extraordinary item.........................................                          $    (.74) $   (2.93)
      Extraordinary item................................................                               (.23)    --
                                                                                                  ---------  ---------
      Net income loss per share applicable to common stockholders.......                          $    (.97) $   (2.93)
                                                                                                  ---------  ---------
                                                                                                  ---------  ---------
OTHER FINANCIAL DATA:
  Ratio of earnings to combined fixed charges and preferred stock
    dividends...........................................................       2.60x       1.67x     --         --
  Capital expenditures, excluding cost of acquisitions..................  $   5,793   $   9,056   $  10,050  $  25,576
OTHER DATA:
  Ending cellular subscribers (at period end)...........................     24,124      44,665     106,574    142,934
  Cellular penetration (at period end)..................................       3.3%        4.4%        4.5%       6.0%
  Cellular churn........................................................       1.5%        1.4%        1.3%       1.3%
  Average monthly revenue per cellular subscriber.......................  $      45   $      46   $      42  $      36
  Cellular sites (at period end)........................................         24          41         114        163
 
<CAPTION>
 
                                                                                          DECEMBER 31,
                                                                          --------------------------------------------
                                                                            1994        1995        1996       1997
                                                                          ---------  -----------  ---------  ---------
                                                                                     (DOLLARS IN THOUSANDS)
<S>                                                                       <C>        <C>          <C>        <C>
BALANCE SHEET DATA:
  Property and equipment, net...........................................  $  14,084   $  21,049   $  43,959  $  53,007
  Total assets..........................................................     27,418      79,618     344,178    340,986
  Total debt............................................................     18,264      69,500     312,250    305,500
  Mandatory redeemable preferred stock..................................     --          --          19,718     --
  Stockholders' equity (deficit)........................................      4,769       4,286      (1,982)    19,218
 
<CAPTION>
                                                                             PERIOD FROM
                                                                           JANUARY 1, 1998
                                                                               THROUGH
                                                                          DECEMBER 23, 1998
                                                                          -----------------
 
<S>                                                                       <C>
STATEMENT OF OPERATIONS DATA:
  Revenue:
    Subscriber revenue..................................................      $  64,786
    Roamer revenue......................................................         28,035
    Equipment sales.....................................................          5,794
    Other revenue.......................................................          1,653
                                                                               --------
  Total revenue.........................................................        100,268
  Costs and expenses:
    Cost of services....................................................          9,433
    Cost of equipment sales.............................................         10,444
    General and administrative..........................................         19,796
    Selling and marketing...............................................         12,327
    Merger related costs................................................          1,884
    Depreciation and amortization.......................................         27,498
                                                                               --------
    Total costs and expenses............................................         81,382
                                                                               --------
  Operating income......................................................         18,886
    Interest expense....................................................        (27,895)
    Merger related costs................................................         (5,206)
    Other expense, net..................................................           (319)
                                                                               --------
    Income (loss) before extraordinary item.............................        (14,534)
    Extraordinary loss on extinguishment of debt........................         --
                                                                               --------
    Net income (loss)...................................................      $ (14,534)
                                                                               --------
                                                                               --------
    Dividends and accretion on preferred stock..........................         --
                                                                               --------
    Net income (loss) applicable to common stockholders.................      $ (14,534)
                                                                               --------
                                                                               --------
    Net income (loss) per share applicable to common stockholders:
      Before extraordinary item.........................................          (1.58)
      Extraordinary item................................................         --
                                                                               --------
      Net income loss per share applicable to common stockholders.......          (1.58)
                                                                               --------
                                                                               --------
OTHER FINANCIAL DATA:
  Ratio of earnings to combined fixed charges and preferred stock
    dividends...........................................................         --
  Capital expenditures, excluding cost of acquisitions..................      $  13,654
OTHER DATA:
  Ending cellular subscribers (at period end)...........................            N/A
  Cellular penetration (at period end)..................................            N/A
  Cellular churn........................................................           1.4%
  Average monthly revenue per cellular subscriber.......................      $      35
  Cellular sites (at period end)........................................            183
 
                                                                            DECEMBER 23,
                                                                                1998
                                                                          -----------------
 
<S>                                                                       <C>
BALANCE SHEET DATA:
  Property and equipment, net...........................................      $  51,035
  Total assets..........................................................        329,580
  Total debt............................................................        308,500
  Mandatory redeemable preferred stock..................................         --
  Stockholders' equity (deficit)........................................          4,684
</TABLE>
    
 
                                       32
<PAGE>
   
                     PRO FORMA CONSOLIDATED FINANCIAL DATA
    
 
    The following unaudited pro forma consolidated statement of operations has
been prepared to give effect to the following transactions:
 
    - our acquisition of Sygnet
 
    - the $145.0 million equity contribution from Dobson Communications
 
    - the incurrence of $407.0 million of bank debt
 
    - our sale of $200.0 million of 12 1/4% Senior Notes, and purchase of $67.7
      million of U.S. government securities
 
    - repayment of all indebtedness outstanding under Sygnet's bank facility
 
    - repurchase of all of Sygnet's outstanding 11 1/2% Senior Notes
 
    - $25.0 million sale of towers from Sygnet to Dobson Tower Company, and the
      leaseback of those towers from Dobson Tower Company to Sygnet
 
   
    The statement of operations for the year ended December 31, 1998 give effect
to these transactions as if they occurred on January 1, 1998. We have accounted
for our acquisition of Sygnet using the purchase method of accounting. The
purchase price was allocated as follows (in thousands):
    
 
   
<TABLE>
<S>                                                                <C>
Purchase price for Sygnet common stock...........................  $ 337,500
Sygnet indebtedness assumed......................................    309,000
                                                                   ---------
  Total purchase price...........................................  $ 646,500
                                                                   ---------
                                                                   ---------
 
Current assets...................................................  $  37,400
Property, plant and equipment....................................     47,000
Cellular license costs...........................................    710,800
Other assets.....................................................     45,900
Current liabilities..............................................    (13,100)
Deferred tax liabilities.........................................   (181,500)
                                                                   ---------
                                                                   $ 646,500
                                                                   ---------
                                                                   ---------
</TABLE>
    
 
   
    We are aware of no unresolved matters that will materially impact the
purchase price allocation presented in this registration statement.
    
 
    We have prepared the unaudited pro forma consolidated statement of
operations on the basis of certain assumptions that we believe are reasonable.
The unaudited pro forma consolidated statement of operations does not give
effect to certain cost savings that we will seek to obtain following the Sygnet
acquisition.
 
   
    Our unaudited pro forma consolidated statement of operations and the related
notes are provided for informational purposes only and do not purport to be
indicative of the results that would have actually been obtained had the
transactions been completed on the dates indicated or that may be expected to
occur in the future. You should read the unaudited pro forma consolidated
statement of operations and notes thereto in conjunction with "Selected
Consolidated Financial and Other Data of Dobson/Sygnet," "Selected Consolidated
Financial and Other Data of Sygnet," "Management's Discussion and Analysis of
Financial Condition and Results of Operations," "Business--Markets and Systems"
and the historical financial statements and notes thereto that we include
elsewhere in this prospectus.
    
 
                                       33
<PAGE>
   
                      DOBSON/SYGNET COMMUNICATIONS COMPANY
    
 
   
            UNAUDITED PRO FORMA CONSOLIDATED STATEMENT OF OPERATIONS
    
 
   
<TABLE>
<CAPTION>
                                                                     YEAR ENDED DECEMBER 31, 1998
                                                      ----------------------------------------------------------
                                                                     SYGNET (THE
                                                                     PREDECESSOR                    THE COMPANY
                                                      DOBSON/SYGNET   COMPANY)      ADJUSTMENTS      PRO FORMA
                                                      -------------  -----------  ---------------  -------------
                                                                        (DOLLARS IN THOUSANDS)
<S>                                                   <C>            <C>          <C>              <C>
OPERATING REVENUE:
  Subscriber revenue................................    $   1,563     $  64,786   $     --          $    66,349
  Roaming revenue...................................          664        28,035         --               28,699
  Equipment sales...................................          191         5,794         --                5,985
  Other revenue.....................................       --             1,653         --                1,653
                                                      -------------  -----------  ---------------  -------------
    Total operating revenue.........................        2,418       100,268         --              102,686
                                                      -------------  -----------  ---------------  -------------
OPERATING EXPENSES:
  Cost of Services..................................          160         9,433          832(1)          11,609
                                                                                       1,184(2)
  Equipment.........................................          369        10,444         --               10,813
  Marketing and selling.............................          464        12,327        2,603(1)          15,394
  General and administrative........................          613        19,796       (3,435)(1)         16,974
  Merger related costs..............................       --             1,884       (1,884)(3)        --
  Depreciation and amortization.....................        1,662        27,498       43,901(2)          72,139
                                                                                        (922)(4)
                                                      -------------  -----------  ---------------  -------------
    Total operating expenses........................        3,268        81,382       42,279            126,929
                                                      -------------  -----------  ---------------  -------------
OPERATING INCOME (LOSS).............................         (850)       18,886      (42,279)           (24,243)
                                                      -------------  -----------  ---------------  -------------
  Interest expense..................................         (886)      (27,895)     (34,493)(5)        (63,274)
  Merger related costs..............................       --            (5,206)       5,206            --
  Other expense, net................................           20          (319)        --                 (299)
                                                      -------------  -----------  ---------------  -------------
LOSS BEFORE INCOME TAXES............................       (1,716)      (14,534)     (71,566)           (87,816)
INCOME TAX BENEFIT..................................          652        --           32,718(6)          33,370
                                                      -------------  -----------  ---------------  -------------
NET LOSS............................................    $  (1,064)    $ (14,534)  $  (38,848)       $   (54,446)
                                                      -------------  -----------  ---------------  -------------
                                                      -------------  -----------  ---------------  -------------
</TABLE>
    
 
- ------------------------------
(1) This reclassifies certain operating expenses to conform with our
    presentation.
 
(2) This reflects the impact of the elimination of the depreciation related to
    the sale of the towers and the estimated increase in rental expense
    attributable to the leases, pursuant to Sygnet's sale of towers to Dobson
    Tower Company and the leaseback of those towers from Dobson Tower Company to
    Sygnet.
 
   
(3) This eliminates costs that Sygnet incurred related to the consummation of
    the Sygnet acquisition.
    
 
   
(4) This reflects the additional depreciation and amortization resulting from
    the allocation of the purchase price to property and equipment, cellular
    license acquisition costs and intangible assets. We depreciate property and
    equipment over two to ten years, cellular license acquisition costs over 15
    years and intangible assets over five to ten years. We base the 15 year
    period we use for cellular license acquisition costs primarily on our
    internal analysis of the recovery period for our cellular investments, which
    indicates that we will recover such costs through operations over a period
    of not more than 15 years. Other factors considered include the competitive
    nature of the cellular industry, the rate of technological change and risk
    of obsolescence, and the specific terms and characteristics of the licenses.
    See "Risk Factors--We face intense competition in our business" and "--Our
    business is affected by rapid and significant technological changes."
    
 
   
(5) This reflects:
    
 
   
    - the $27.9 million of interest expense (including $1.1 million of
      amortization of deferred financing costs) associated with indebtedness of
      the Sygnet notes and the Sygnet bank facility which will be repaid as
      apart of the Transactions,
    
 
   
    - $24.0 million of interest expense relating to the $200 million principal
      amount of the old notes,
    
 
    - $33.4 million of interest expense relating to the $407 million of
      borrowings under our new bank facilities (assuming a weighted average
      interest rate of 8.38%),
 
    - $.1 million of interest expense relating to the unused principal amount of
      our new bank facilities (assuming a commitment fee of .5%),
 
   
    - $3.8 million of amortization of deferred financing costs relating to the
      estimated $38.7 million of debt issuance costs that we incurred in
      connection with our offering of the old notes and
    
 
    - $1.2 million of amortization of deferred financing costs relating to the
      estimated $10.8 million of debt issuance costs that we incurred in
      connection with our new bank facilities.
 
   
(6) To reflect the adjustment to income tax expense for the effects of the
    Sygnet acquisition and its related transactions, including an income tax
    benefit for Sygnet's pro forma pre-tax loss during the period, assuming a
    38% effective tax rate. A tax benefit has been recognized in the pro forma
    statement of operations due to the net deferred tax liabilities created in
    the Sygnet acquisition.
    
 
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<PAGE>
   
                    MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                 FINANCIAL CONDITION AND RESULTS OF OPERATIONS
    
 
OVERVIEW
 
    Through Sygnet, we own and operate cellular telephone systems serving a
large cluster of properties with a population of approximately 2.4 million and
178,751 subscribers located in northeastern Ohio, western Pennsylvania and
western New York. Our cellular systems are located in Youngstown, Ohio and Erie,
Pennsylvania, and in primarily rural and suburban areas between the Cleveland,
Akron-Canton, Pittsburgh, Buffalo and Rochester metropolitan areas. The
following discussion and analysis is of the historical financial condition and
results of Sygnet's operations. You should read this section conjunction with
Sygnet's consolidated financial statements and the notes appearing elsewhere in
this prospectus.
 
    Sygnet's acquisition of the FCC licenses and related systems for
Pennsylvania 1 RSA, Pennsylvania 2 RSA, Pennsylvania 6 RSA, Pennsylvania 7 RSA
and New York 3 RSA (the "Horizon Acquisition") in October 1996 significantly
affected its operating results. The systems Sygnet acquired in the Horizon
Acquisition for $252.9 million serve contiguous markets representing
approximately 1.4 million Pops in western Pennsylvania and New York.
 
    Our revenues primarily consist of:
 
    - service revenue, which includes charges to our subscribers for access and
      usage;
 
    - roaming revenue, which includes charges to other cellular providers for
      providing service to their subscribers in our service areas; and
 
    - equipment revenue, from sales of cellular telephone equipment.
 
    Average revenue per minute has declined in our industry, as competition
among service providers has led to reductions in rates for airtime,
subscriptions and other charges, and we expect this trend to continue. We
believe that the impact of this trend will be mitigated by increases in the
number of cellular telecommunications subscribers and the number of minutes of
usage per subscriber. We have also seen a broad trend in the wireless
telecommunications industry of declining average revenue per subscriber. We
believe that the downward trend is primarily the result of the addition of new
lower usage customers who utilize cellular services for personal convenience,
security or as a backup for their traditional landline telephone. Although
Sygnet experienced a decline in average revenue per subscriber, we have
introduced new pricing plans, which have increased its number of subscribers.
 
    Roaming accounted for 27.7% and 28.0% of Sygnet's revenue for the years
ended December 31, 1997 and 1998, respectively. While the industry trend is to
reduce roaming rates, we believe that Sygnet's roaming rates are generally lower
than rates offered by others in or near its systems. However, we cannot assure
you that this trend will not materially impact us in the future. On a pro forma
basis giving effect to the Horizon Acquisition, roaming yield (roamer service
revenue, which includes airtime, toll charges and surcharges, divided by roaming
minutes of use) was $.65, $.64 and $.63 per minute for the years ended December
31, 1996, 1997 and 1998, respectively.
 
    Our primary operating expense categories include:
 
    - cost of service and equipment,
 
    - marketing and selling costs,
 
    - general and administrative costs, and
 
    - depreciation and amortization.
 
    Cost of service consists primarily of costs associated with billing, amounts
paid for interconnection and call delivery and amounts paid to third-party
cellular providers for providing service to Sygnet's subscribers
 
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<PAGE>
when roaming, offset by the amount billed to Sygnet's subscribers. Changes in
the interconnection charge rate structure imposed by the FCC or mandated by the
Telecommunications Act may have a material impact on us. See
"Business--Regulation."
 
    Cost of equipment represents the cost associated with telephone equipment
and accessories sold to customers. In recent years, Sygnet and other cellular
companies have increased the use of discounts on phone equipment and free phone
promotions, as competition between service providers has intensified. As a
result, Sygnet has incurred, and expects to continue to incur, losses on
equipment sales, which have affected marketing and selling costs per gross
additional cellular subscriber. While we expect to continue these discounts and
promotions, we believe that the use of such promotions will lead to increased
revenue from increases in the number of cellular subscribers.
 
    Marketing and selling costs primarily consist of advertising costs and
compensation paid to sales personnel and independent agents and retail store
operations' costs. We pay commissions to direct sales personnel primarily for
the amount of new business generated. Independent sales agents receive
commissions for generating new sales and ongoing sales to existing customers.
 
    General and administrative costs include all infrastructure costs such as
customer support, collections, corporate administration, costs to maintain and
operate cell sites and customer retention costs.
 
    Depreciation and amortization relates primarily to switching and cell site
equipment, customer lists and license costs.
 
   
RESULTS OF OPERATIONS FOR SYGNET (PREDECESSOR COMPANY)
    
 
PERIOD FROM JANUARY 1, 1998 TO DECEMBER 23, 1998 COMPARED TO YEAR ENDED DECEMBER
  31, 1997
 
    For purposes of the following analysis of the results of operations, we have
considered the period from January 1, 1998 to December 23, 1998 as the year
ended 1998. Activity from December 24, 1998 to December 31, 1998 is not material
to the comparability of 1998 to 1997. We have expanded our discussions related
to Depreciation and Amortization, and Interest Expense (Net) to explain the
impact of our acquisition of Sygnet and its related financing.
 
    REVENUE.  For 1998, Sygnet's total revenue increased 18.6% to $100.3
million, from $84.5 million in 1997. The growth in revenue resulted from of
continued growth of the subscriber base and increased roaming revenue generated
by additional usage.
 
    Subscriber revenue grew 17.6% to $64.8 million for 1998 from $55.2 million
in 1997 mainly as a result of continued subscriber growth, despite a decline in
average revenue per subscriber. Sygnet's number of subscribers increased by
26.1% to 178,751 at December 31, 1998 from 142,954 at December 31, 1997 due to
internal growth. On a per subscriber basis, average monthly subscriber revenue
per subscriber declined by 7.1% to $34.97 for 1998 from $37.63 during 1997. This
was due to competitive market pressures, continuing promotional activity and the
changing mix of subscribers reflecting increasing levels of subscribers who
purchase less expensive rate plans that include packaged minutes of use.
 
    Roaming revenue grew 19.9% to $28.0 million during 1998 compared to $23.4
million in 1997. This increase was mainly a result of increased roaming traffic
throughout all of Sygnet's systems which more than offset the decline in roaming
revenue per minute of use. Roaming minutes of use increased by 24.8% to $45.7
million for 1998 from 36.6 million for the comparable period in 1997. Roaming
revenue per minute, including toll, for 1998 decreased to $0.63 from $0.64 for
the comparable period in 1997. The decrease resulted primarily from reductions
in rates with other roaming partners.
 
    Equipment sales revenue increased 34.0% to $5.8 million for 1998 from $4.3
million in the comparable period in 1997. This increase resulted mainly from an
increased number of telephones and accessories sold to new customers as well as
from additional sales of equipment to existing customers for retention
 
                                       36
<PAGE>
purposes for which credits are given on the sales price and reflected in general
and administrative costs. The increase in the number of phones that we sold to
agents also contributed to the increase.
 
    COST OF SERVICES.  Cost of services increased 5.4% to $9.4 million for 1998
from $8.9 million for 1997. This increase resulted mainly from an increase in
home subscriber net roaming costs as well as increased billing and call delivery
expenses associated with the growth in the subscriber base. Lower costs to
Sygnet for long distance charges and the elimination of costs associated with a
terminated switching agreement partially affect this increase. As a percentage
of total revenue, cost of services was 9.4% for 1998 compared to 10.6% for the
same period in 1997.
 
    COST OF EQUIPMENT SALES.  Cost of equipment sales increased 8.1% to $10.4
million for 1998 from $9.7 million in 1997. This increase resulted mainly from
an increased number of telephones and accessories we have sold to existing
subscribers, as well as the number of phones we have sold to agents.
 
    GENERAL AND ADMINISTRATIVE COSTS.  General and administrative costs
increased 16.6% to $19.8 million for 1998 from $17.0 million in 1997. This
increase resulted mainly from the growth in the subscriber base which caused an
increase in compensation and increased customer retention costs due to
competitive pressures. As a percentage of total revenues, general and
administrative expense was 19.7% for 1998 compared to 20.1% in 1997.
 
    SELLING AND MARKETING COSTS.  Selling and marketing costs increased 13.7% to
$12.3 million for 1998 from $10.8 million in 1997. This increase resulted mainly
from an increase in new subscribers added period to period which caused higher
compensation and commission expenses as well as an increase in advertising and
promotional expenses.
 
    DEPRECIATION AND AMORTIZATION.  Depreciation and amortization decreased 4.3%
to $27.5 million for 1998 from $28.7 million for the comparable period in 1997.
The decrease resulted from the full depreciation of certain assets. For 1998,
Sygnet incurred $13.7 million in capital expenditures, primarily for cell site
and system enhancements. The acquisition of Sygnet will materially impact
depreciation and amortization expense. When giving effect to our acquisition of
Sygnet and its related financing, the pro forma depreciation and amortization
expense for 1998 is approximately $70.5 million. The additional pro forma
depreciation and amortization over Sygnet's historical depreciation and
amortization is primarily due to the amortization of cellular licenses.
 
    INTEREST EXPENSE, NET.  Interest expense decreased 6.7% to $27.9 million for
1998 from $30.0 million for the comparable period in 1997. This decrease
resulted primarily from a lower level of borrowing due to the repayment of
certain indebtedness with the proceeds from the sale of common stock. The
acquisition of Sygnet will materially impact interest expense. When giving
effect to our acquisition of Sygnet and its related financing, the pro forma
interest expense for 1998 is approximately $62.2 million. The additional pro
forma interest expense over Sygnet's historical interest expense results from
the additional debt incurred as a result of the acquisition.
 
    NET OPERATING LOSSES.  At December 31, 1998, we had net operating loss
carryforwards of approximately $45 million. Sygnet had not previously recognized
deferred tax assets in excess of deferred tax liabilities. This was based
primarily on the history of net losses experienced by Sygnet. Upon consummation
of our acquisition of Sygnet, we have deferred tax liabilities in excess of
deferred tax assets.
 
YEAR ENDED DECEMBER 31, 1997 COMPARED TO YEAR ENDED DECEMBER 31, 1996
 
    REVENUE.  For 1997, Sygnet's total revenue increased 89.8% to $84.5 million
from $44.5 million for 1996. The growth in revenue resulted from both the
Horizon Acquisition, which occurred on October 9, 1996, and continued growth of
the subscriber base.
 
                                       37
<PAGE>
    Subscriber revenue grew by 75.5% to $55.2 million for 1997 from $31.8
million for 1996 mainly as a result of the Horizon Acquisition and continued
subscriber growth. Subscriber revenue, on a pro forma basis giving effect to the
Horizon Acquisition, would have grown by 20.2% due to growth in the subscriber
base, offset by a decline in average revenue per subscriber. Sygnet's
subscribers grew by 34.1% to 142,934 at December 31, 1997 from 106,574 at
December 31, 1996 due mainly to internal growth. On a pro forma basis giving
effect to the Horizon Acquisition, average monthly revenue per subscriber would
have declined by 4.5% to $37.63 during 1997 from $39.38 in 1996. This was due to
the changing mix of subscribers reflecting increasing levels of subscribers
purchasing less expensive rate plans that include limited free minutes of use,
increased promotional activity and competitive market pressures.
 
    Roamer revenue increased 167.6% to $23.4 million during 1997 from $8.7
million for 1996. This increase resulted mainly from the Horizon Acquisition as
well as from increased roaming traffic throughout all of Sygnet's systems. On a
pro forma basis giving effect to the Horizon Acquisition, roamer revenue would
have grown by 9.9% due to a greater volume of roaming traffic offset by a
reduction in roaming revenue per minute. Roaming revenue per minute for 1997
would have decreased to $0.64 from $0.65 for 1996 on a pro forma basis giving
effect to the Horizon Acquisition mainly as a result of reductions in roaming
rates with roaming partners.
 
    Equipment sales increased 78.9% to $4.3 million for 1997 compared to $2.4
million for 1996. This increase resulted mainly from the Horizon Acquisition, an
increased number of telephones and accessories distributed as new subscriber
acquisitions increased, as well as from additional sales of equipment to
existing customers. On a pro forma basis giving effect to the Horizon
Acquisition, equipment sales for 1997 would have increased 12.4% over 1996.
 
    COST OF SERVICES.  Cost of services increased 70.2% to $8.9 million during
1997 from $5.3 million for 1996 due mainly to the Horizon Acquisition. On a pro
forma basis giving effect to the Horizon Acquisition, cost of services for 1997
would have increased by 2.6% from 1996. This increase resulted mainly from an
increase in billing, call delivery and roaming costs associated with the growth
in the subscriber base, partially offset by lower rates for interconnection and
long distance charges. As a percentage of total revenues, on a pro forma basis
giving effect to the Horizon Acquisition, cost of services was 10.6% in 1997
compared to 12.4% in 1996.
 
    COST OF EQUIPMENT SALES.  Cost of equipment sales increased 66.2% to $9.7
million for 1997 from $5.8 million in 1996. This increase resulted mainly from
the Horizon Acquisition and from an increased number of telephones and
accessories distributed as new subscriber acquisitions increased. Sales of
equipment to existing subscribers also contributed to a portion of this
increase. On a pro forma basis giving effect to the Horizon Acquisition, cost of
equipment sales for 1997 would have increased 18.6% over 1996. As a percentage
of total revenues, on a pro forma basis giving effect to the Horizon
Acquisition, cost of equipment sales was 11.4% in 1997 compared to 11.5% in
1996.
 
    GENERAL AND ADMINISTRATIVE COSTS.  General and administrative costs grew
72.3% to $17.0 million in 1997 from $9.9 million in 1996. This increase resulted
primarily from the Horizon Acquisition and from an increase in costs due to
internal growth. On a pro forma basis giving effect to the Horizon Acquisition,
general and administrative expenses for 1997 would have increased 19.8% over
1996. This increase resulted mainly from an increase in compensation, customer
retention, occupancy and maintenance expenses associated with the growth in the
subscriber base as well as the additional cell sites added during 1997. As a
percentage of total revenues, on a pro forma basis giving effect to the Horizon
Acquisition, general and administrative expense would have been 19.8% in 1997
compared to 20.0% in 1996.
 
    SELLING AND MARKETING COSTS.  Selling and marketing costs grew 78.3% to
$10.8 million for 1997 from $6.1 million in 1996. This increase resulted from
the Horizon Acquisition and from a higher level of new subscribers added period
to period. On a pro forma basis giving effect to the Horizon Acquisition,
selling and marketing costs grew by 12.3% and selling and marketing cost per
gross new subscriber decreased to
 
                                       38
<PAGE>
$291 in 1997 from $324 in 1996 reflecting a decrease in cost of telephone and
accessories in addition to improved operating efficiencies. As a percentage of
total revenues, on a pro forma basis giving effect to the Horizon Acquisition,
selling and marketing costs grew by 12.8% in 1997 compared to 13.7% in 1996.
 
    DEPRECIATION AND AMORTIZATION.  Depreciation and amortization increased to
$28.7 million for 1997 from $10.0 million in 1996. Depreciation on higher levels
of fixed assets resulting from the Horizon Acquisition, and purchases of
equipment to enhance systems in existing markets, and amortization of the
license acquired in the Horizon Acquisition contributed to this increase. The
amortization of the acquired cellular licenses and subscriber lists contributed
$10.3 million to this increased amortization. For 1997, the Company spent $25.6
million in capital expenditures, primarily for new cell sites, cell site
conversions, and system growth.
 
    INTEREST EXPENSE, NET.  Interest expense increased to $29.9 million in 1997
from $11.2 million in 1996. This increase resulted primarily from increased
borrowings associated with the Horizon Acquisition.
 
IMPACT OF YEAR 2000 ISSUE
 
    The Year 2000 issue exists because many computer systems and applications,
including those embedded in equipment and facilities, use two digit rather than
four digit date fields to designate an applicable year. As a result, the systems
and applications may not properly recognize the year 2000 or process data that
includes it, potentially causing data miscalculations, inaccuracies, operational
malfunctions or failures.
 
    In April 1998, our parent, Dobson Communications, established a
multi-disciplined team to perform a Year 2000 impact analysis for Dobson
Communications and its subsidiaries. The team consists of representatives from
each line of business of Dobson Communications and its subsidiaries, as well as
representatives from key corporate departments. The team is headed by a
full-time Year 2000 compliance manager. The team created a Year 2000 assessment
methodology which brought a structured approach to the assessment and management
reporting process, as well as disaster recovery approach.
 
    To date, we have completed an inventory of our automated systems and
services and an impact analysis that identified significant risk areas by line
of business, specific compliance requirements and costs and estimated completion
dates for affected systems. We also have contacted all of the vendors of
products and services that we believe are critical to our operations. We have
received notification of Year 2000 compliance either directly in writing, in
contracts, or by accessing Year 2000 information available at the vendors' Web
sites. All of these vendors have provided some type of assurance that their
products will be Year 2000 compliant. However, not all have provided us
expressly with a "Year 2000 Compliance Statement" and/or a "Year 2000 Warranty."
Our focus with our vendors has been directed toward gaining assurances of Year
2000 compliance in the form of documented Year 2000 planning and testing and
third party audits.
 
    From an information systems standpoint, we have historically relied on
outsourcing relationships for most of our business and operational support
applications. In addition, we use packaged software from outside vendors for
those applications that we have not outsourced. As a result, we have focused on
identifying third party systems and services that are not currently Year 2000
compliant and oversight of third party compliance efforts.
 
   
    Our impact analysis revealed that for most of our information systems,
services and telecommunications infrastructure, Year 2000 compliant versions
will be included as a part of existing maintenance and/or service agreements at
no additional cost to us and should be in place and tested by the second quarter
of 1999. However, we have two critical systems that will not be replaced until
third quarter 1999. Those systems are one Ericsson switching system in New York
and portions of our ITDS billing system. The Ericsson switching equipment will
be replaced with Year 2000 compliant Nortel equipment. We expect to complete
this replacement in the third quarter of 1999. In the first quarter of 1999, we
decided to replace our current billing system vendor, ITDS, with a new vendor,
H.O. Systems, which is Year 2000 compliant.
    
 
                                       39
<PAGE>
We are in the process of implementing the H.O. Systems software throughout our
markets and expect to complete the implementation in the third quarter of 1999.
We estimate total costs of approximately $.25 million to upgrade or replace
those systems that are not Year 2000 compliant and will not be upgraded through
existing maintenance or service agreements.
 
    The estimated costs for Year 2000 compliance do not include the costs of
upgrading the New York system or replacing the billing vendor. We made those
decisions for business reasons outside of the Year 2000 issue and would have
made them regardless of whether the systems currently in place were Year 2000
compliant. All of our automated systems and services are or will be Year 2000
compliant by the end of the third quarter of 1999.
 
    We have developed contingency planning in two parts. First, in the event
that a product or service is not compliant by the end of the second quarter of
1999, where feasible, we have identified alternate compliant products or
services that can replace them. Second, we have developed a disaster recovery
plan to address possible disruptions to operations after the rollover to the
Year 2000. This plan will be completed by the end of 1999.
 
    We will continue to analyze systems and services that utilize date-embedded
codes that may experience operational problems when the Year 2000 is reached. We
will continue communicating with third party vendors of systems software and
equipment, suppliers of telecommunications capacity and equipment, roaming
partners customers and others with whom we do business to coordinate Year 2000
compliance. To further mitigate risks, if a critical vendor does not provide
adequate assurance that its product is Year 2000 compliant through test plans,
test results or third party audit results, we will either replace the product
with one that has provided proof of compliance or will conduct our own Year 2000
tests.
 
   
    In the event any of our vendors has represented that it is Year 2000
compliant and, in fact, it is not, we would have no recourse against this vendor
other than an action for damages for either breach of contract or, in the
absence of a contractual obligation, for negligence if we could establish that
the vendor had a legal duty to us to be Year 2000 compliant. If we are unable to
provide systems and services to our customers, because either our own systems or
those of our vendors are not Year 2000 compliant, our reasonably likely worst
case scenario is that we would experience a reduction in our operating revenues
which could adversely affect our ability to meet our operating and financial
obligations, including our obligations with respect to the notes.
    
 
LIQUIDITY AND CAPITAL RESOURCES
 
    We are a holding company with no direct operations and no significant assets
other than the stock of our subsidiaries. We depend on the cash flows of our
subsidiaries to meet our obligations, including our obligations to pay interest
and principal on our indebtedness. Our subsidiaries are separate legal entities
that have no obligation to pay any amounts owed by us or to make any funds
available to us. The ability of our subsidiaries to distribute funds to us is
and will be restricted by the terms of existing and future indebtedness
including our credit facilities. See "Risk Factors--We depend on distributions
from our subsidiaries. The notes are effectively subordinated to outstanding
obligations of our subsidiaries."
 
    At December 31, 1998, we had working capital of $33.9 million (a ratio of
current assets to current liabilities of 2.4:1) and an unrestricted cash balance
of $20.3 million.
 
    Our cash provided by operating activities in 1998 was $5.2 million. This
resulted primarily from our operating loss offset by depreciation and
amortization and accruals for expenses. Our cash used in investing activities in
1998 was $590.9. This resulted primarily from our acquisition of Sygnet. Our
cash provided by financing activities in 1998 was $605.9. This is primarily the
result of the proceeds from our bank credit facilities and the sale of the
notes.
 
                                       40
<PAGE>
    Sygnet has historically relied on internally generated funds to fund debt
service and a substantial portion of its capital expenditures. Bank credit
facilities and equity issuances have been used for additional support of capital
expenditure programs and to fund acquisitions.
 
    Sygnet's net cash provided by operating activities was $10.8 million for the
period from January 1, 1998 to December 23, 1998 compared to $9.4 million for
the comparable period in 1997. The increase was primarily the result of the
increase in operating income, offset somewhat by a decrease in net working
capital. Net cash provided by operating activities was $9.4 million for 1997
compared to $14.8 million for 1996. This decrease from 1996 to 1997 was
primarily due to interest paid of $30.0 million in 1997 compared to $4.7 million
in 1996, which was offset significantly by the increase in revenue due to growth
in subscribers.
 
    Sygnet's net cash used in investing activities was $13.2 million for the
period from January 1, 1998 to December 23, 1998 compared to $25.8 million for
the comparable period in 1997. In 1998, this activity reflects decreased levels
of purchases of property and equipment primarily for system buildout in addition
to proceeds of $300,000 associated with the sale of an undeveloped patent to an
officer/shareholder of Sygnet. In 1997, this activity reflects final payments
made in connection with the Horizon Acquisition and the completion of the
buildout of the system acquired in the Horizon Acquisition. Net cash used in
investing activities, which totaled $25.8 million and $264.2 million for the
years ended December 31, 1997 and 1996, respectively, principally related to the
system buildout in 1997, the Horizon Acquisition in 1996 and capital
expenditures required to support the growth of the business.
 
    Sygnet's net cash provided by financing activities was $3.0 million for the
period from January 1, 1998 to December 23, 1998 compared to $15.0 million
provided by financing activities for the comparable period in 1997 as the
combination of reduced capital expenditures and increased cash flow from
operating activities reduced the need for outside financing. In 1997, this
activity included $43.6 million in net proceeds from the sale of Sygnet's common
stock which were used primarily to redeem the remaining outstanding preferred
stock and to reduce amounts outstanding under Sygnet's bank facility and fund
capital expenditures. Net cash provided by financing activities was $15.0
million for 1997 compared to $251.2 million for 1996. The 1996 amount includes
primarily funds received, net of financing cost, from the issuance of the Sygnet
notes and preferred stock and borrowings under the Sygnet Bank Facility to fund
acquisitions. Dividends of $.3 million were paid in 1996.
 
    We expect our capital expenditures to total approximately $15.6 million for
1999. Of the amount expected to be made in 1999, $7.9 million is expected to be
made to upgrade the New York system to TDMA IS-136. The amount and timing of
capital expenditures may vary depending on the rate at which we expand and
develop our cellular systems and whether we consummate additional acquisitions.
In addition, Sygnet expects to borrow $6.0 million under our new bank facilities
to close the acquisition of Pennsylvania 2 RSA and additional amounts to pay any
accrued interest under the Sygnet notes.
 
   
    Sygnet's new bank facilities aggregate $430.0 million, consisting of a $50.0
million revolving credit facility and $380.0 million of term loan facilities. As
of December 31, 1998 we had $407.0 million outstanding under the facilities at a
weighted average interest rate of 8.9%. No principal amounts are due under the
facilities until 1999. Obligations under our new facilities are secured by a
pledge of the capital stock of Sygnet's subsidiary as well as a lien on
substantially all of the assets of Sygnet and its operating subsidiary. The New
Bank Facilities require that we maintain certain financial ratios. The failure
to maintain such ratios would constitute an event of default, notwithstanding
Sygnet's ability to meet its debt service obligations. To date, we believe that
we have maintained the required financial ratios. See "Description of Certain
Indebtedness." The ability of Sygnet to borrow under our new bank facilities
will be limited by the requirement that, on a quarterly basis beginning December
31, 2000, the amount available under our new bank facilities will reduce until
they terminate. The $200.0 million senior notes bear an interest rate of 12.25%
and mature in 2008. We used approximately $67.7 million of the net
    
 
                                       41
<PAGE>
proceeds to purchase securities pledged to secure the first six semi-annual
interest payments, which begin June 15, 1999.
 
    Subsequent to our acquisition of Sygnet, we entered into an interest rate
swap which has effectively fixed the interest on $110 million of the principal
outstanding on our new credit facilities at 8.9%. The term of the interest rate
swap is 24 months.
 
   
    As part of our acquisition of Sygnet and its related financing, Sygnet sold
to Dobson Tower Company, a wholly owned subsidiary of Dobson Communications
Corporation, substantially all of the towers owned by Sygnet for $25.0 million.
Dobson Tower Company has leased these towers back to Sygnet under an operating
lease. The lease is for an initial term of five years, with annual lease
payments of approximately $1.6 million.
    
 
    Although we cannot provide you any assurance, we believe that, assuming
successful implementation of our strategy, including the further development of
Sygnet's cellular systems and significant and sustained growth in Sygnet's cash
flow, borrowings under our new bank facilities and cash flow from operations,
will be sufficient to fund the acquisition of Pennsylvania 2 RSA to satisfy our
capital expenditure, working capital and debt service obligations for the next
twelve months. However, we will need to refinance our new bank facilities and
the notes at their maturities. Our ability to do so will depend on, among other
things, its financial condition at the time, the restrictions in the instruments
governing its indebtedness and other factors, including market conditions beyond
our control. See "Risk Factors--We May Be Unable to Refinance Our Indebtedness."
The actual amount and timing of our future capital requirements may differ
materially from our estimates as a result of, among other things, the demand for
our services and regulatory, technological and competitive developments. Sources
of additional financing may include commercial bank borrowings, vendor financing
and the sale of equity or debt securities. We cannot assure you that any such
financing will be available on acceptable terms or at all.
 
   
QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
    
 
   
    Our primary market risk relates to changes in interest rates. Market risk is
the potential loss arising from adverse changes in market prices and rates,
including interest rates. We do not enter into derivatives or other financial
instruments for trading or speculative purposes. The objective of our financial
risk management is to minimize the negative impact of interest rate fluctuations
on our earnings and equity. Subsequent to December 31, 1998 we entered into an
interest rate swap on $110.0 million of the principal outstanding on our new
credit facilities. Losses on the interest rate swap, if incurred, will be
reflected in income.
    
 
   
    The fair market value of long-term fixed interest rate debt is subject to
interest rate risk. Generally, the fair market value of fixed interest rate debt
will increase as interest rates fall and decrease as interest rates rise. The
estimated fair values of our total long-term fixed rate and our variable-rate
debt are shown in Note 13 to Notes to Consolidated Financial Statements. Based
on our market risk sensitive instruments outstanding at December 31, 1998, we
have determined that there was no material market risk exposure to our
consolidated financial position, results of operations or cash flows as of such
date.
    
 
                                       42
<PAGE>
   
                                    BUSINESS
    
 
GENERAL
 
   
    We are a wholly owned subsidiary of Dobson Communications. On December 23,
1998, we acquired Sygnet. Sygnet is our predecessor company and its operations
currently are our only business. Through Sygnet, we own and operate rural and
suburban cellular telephone systems serving a single large cluster of properties
that includes a population of approximately 2.4 million, with 178,151
subscribers in northeastern Ohio, western Pennsylvania and western New York. The
cluster includes Youngstown, Ohio, Erie, Pennsylvania, and suburban and rural
areas between the Cleveland, Akron-Canton, Pittsburgh, Buffalo and Rochester
metropolitan areas. We are a wholly owned subsidiary of Dobson Communications.
    
 
SYGNET ACQUISITION AND RELATED FINANCING
 
    On December 23, 1998, we acquired all of the outstanding capital stock of
Sygnet for $337.5 million. In order to finance the Sygnet acquisition, we
consummated the following transactions (the "Sygnet Transactions"):
 
    - we received an equity contribution of approximately $145.0 million from
      Dobson Communications (the "Equity Contribution");
 
    - we obtained a $430.0 million bank credit facility consisting of a $50.0
      million reducing revolving credit facility and $380.0 million of term
      loans (together the "New Bank Facilities") and we used $407.0 million of
      these facilities;
 
    - we sold $200 million aggregate principal amount of our 12 1/4% Senior
      Notes due 2008, and used approximately $67.7 million to purchase a
      portfolio of U.S. government securities (the "Pledged Securities") that
      are pledged as security for the first six scheduled interest payments on
      the notes;
 
    - Sygnet repaid all indebtedness outstanding under its existing bank
      facility (the "Sygnet Bank Facility");
 
    - Sygnet repurchased (the "Sygnet Note Repurchase") all of its outstanding
      11 1/2% Senior Notes due 2006; and
 
    - Sygnet sold substantially all of its owned cellular towers for $25.0
      million to Dobson Tower Company, a wholly owned subsidiary of Dobson
      Communications Corporation, which leased the cellular towers back to
      Sygnet (the "Tower Sale Leaseback").
 
    Sygnet has grown rapidly through selective acquisitions and internal growth.
Sygnet's markets are primarily rural and suburban and include a high
concentration of expressway corridors that tend to have a significant amount of
roaming activity in which customers of a cellular provider in a distant area use
the cellular system of the provider in the current area while the customer is
located in or roaming in the current area. Sygnet has roaming agreements with
operators of cellular systems in adjoining metropolitan service areas and other
metropolitan service areas which allow customers to roam at competitive prices
which, in certain instances, are comparable to user rates charged by Sygnet in
its license areas to its customers. Sygnet's has roaming agreements with AT&T
Wireless, AirTouch and SBC Communications. Sygnet also has roaming agreements
with PCS providers, such as AT&T Wireless and Sprint, to allow the PCS
providers' customers with dual mode telephones with cellular and PCS capability
to roam in certain Sygnet markets.
 
    Sygnet has established and maintained a strong and visible local presence.
Sygnet's existing local management has continued to have day-to-day operating
authority, with the flexibility to respond to individual market requirements and
to foster a strong sense of customer service and community spirit. We expect to
benefit from synergies resulting from Dobson Communications' centralization of
certain functions such as control of pricing, customer service and marketing,
systems design, engineering, purchasing,
 
                                       43
<PAGE>
financial and administrative functions and from the consolidation of billing
functions. For example, we expect to consolidate Sygnet's three regional call
centers and one of Dobson Communication's existing call centers. In addition, we
expect the Sygnet Acquisition to strengthen and expand Dobson Communication's
and Sygnet's existing roaming partner relationships with AT&T Wireless.
 
    Sygnet's markets are primarily rural and suburban and include a high
concentration of expressway corridors that tend to have a significant amount of
roaming activity. Roaming revenue represented approximately 28.0% of Sygnet's
total revenues for the year ended December 31, 1998. Sygnet has entered into
roaming agreements with operators of cellular systems in adjoining MSAs and
other MSAs which
allow customers to roam at competitive prices which, in certain instances, are
comparable to Sygnet's home area rates. Sygnet's principal roaming partners are
AT&T Wireless, AirTouch and SBC Communications. Sygnet also has roaming
agreements with PCS providers, such as AT&T Wireless and Sprint, to allow the
PCS providers' customers with dual mode telephones to roam in certain Sygnet
markets.
 
    We have identified four distinct markets in our cluster of cellular
properties. Our Erie market is the Erie, Pennsylvania MSA. Our New York market
is the New York 3 RSA. Our Pennsylvania market includes Pennsylvania 1,
Pennsylvania 2, Pennsylvania 6 and Pennsylvania 7 RSAs. We have an agreement to
purchase Pennsylvania 2 for $6.0 million. Since June 29, 1998, we have been
operating Pennsylvania 2 under a management and lease agreement which will
continue in effect until the FCC's grant of the license to the present owner of
Pennsylvania 2 becomes final. At that time, we intend to consummate our purchase
of Pennsylvania 2. Our Youngstown market includes the Youngstown, Ohio and
Sharon, Pennsylvania MSAs and the Ohio 2 RSA. Sygnet owns all of the licenses
for these markets except for Pennsylvania 2 RSA:
 
    In each of our markets, we determine our market penetration by dividing the
number of our subscribers by the population included in the related FCC license
area.
 
    The following table sets forth certain data with respect to our cellular
markets as of December 31, 1998.
 
<TABLE>
<CAPTION>
                                  TOTAL          TOTAL           MARKET          YEAR ACQUIRED
MARKETS                        POPULATION     SUBSCRIBERS      PENETRATION         BY SYGNET
- -----------------------------  -----------  ---------------  ---------------  --------------------
<S>                            <C>          <C>              <C>              <C>
Erie MSA.....................     282,300         29,013             10.3%            1995
New York 3 RSA...............     480,000         28,499              5.9%            1996
Pennsylvania.................     890,300         52,178              5.9%            1996
Youngstown...................     721,400         69,061              9.6%    1985, 1987 and 1991
                               -----------       -------              ---
  Total......................   2,374,000        178,751              7.5%
                               -----------       -------              ---
                               -----------       -------              ---
</TABLE>
 
BUSINESS STRATEGY
 
    Our business strategy is to focus on integrating our operations with those
of Dobson Communications, increasing our market penetration and further
developing our cellular systems to sustain growth in cash flows. The following
are the principal elements of our business strategy:
 
    INTEGRATE OPERATIONS WITH DOBSON COMMUNICATIONS.  We intend to integrate our
operations with Dobson Communication's existing cellular operations to achieve
economies of scale. We believe that increased efficiencies will come from the
centralized control of pricing, customer service and marketing, system design,
engineering, purchasing, financial and administrative functions and from the
consolidation of billing functions.
 
    EXPAND STRATEGIC RELATIONSHIPS.  We intend to continue to maintain and
expand strategic relationships with operators of wireless systems in major MSAs
near our systems. These relationships include roaming agreements which allow
Sygnet subscribers to use the system in the neighboring MSA or RSA at favorable
 
                                       44
<PAGE>
rates. Under these agreements, the MSA or RSA operator's subscribers receive
similar benefits roaming in our operating areas. We have roaming agreements with
the dominant cellular operators in the neighboring MSAs and RSAs and others,
including AT&T Wireless, AirTouch and SBC Communications. We also have
agreements with PCS providers, such as AT&T Wireless and Sprint, to allow the
PCS providers' customers with dual mode telephones to roam in certain of our
markets. By entering into these strategic agreements, we are able to increase
its roaming revenue and offer its subscribers larger areas in which our rates
apply.
 
    AGGRESSIVE LOCAL MARKETING AND PROMOTION OF CELLULAR SERVICES.  We plan to
continue to distinguish Sygnet as the local market's leading cellular services
provider, stressing its service quality, local sales offices and commitment to
the community. Sygnet's sales efforts have been conducted primarily through its
51 retail outlets and its direct sales force and, to a lesser extent, through
independent agents. We believe that, as an operator with strong local
distribution of products and services, Sygnet has an advantage over its
competitors who do not emphasize a local presence or focus on local market
requirements and community involvement. We intend to continue to open new retail
outlets and coordinate marketing efforts with Dobson Communication's centralized
marketing department, which should increase efficiencies by spreading costs over
a larger customer base.
 
    TARGETED SALES EFFORTS.  Our marketing programs seek to attract subscribers
who are likely to generate high monthly revenue and low churn rates. We will
undertake extensive market research to identify and design marketing programs to
attract these subscribers and tailor distinctive rate plans and roaming rates to
emphasize the quality, value and advantage of Sygnet's cellular service. In
addition, we intend to maintain Sygnet's sales force compensation system, which
is designed to maximize the acquisition of these high use, reduced churn
subscribers. Sygnet's marketing programs and compensation systems are designed
to increase monthly revenue per subscriber and lower marketing and selling costs
per additional subscriber.
 
    SUPERIOR CUSTOMER SERVICE.  We intend to maintain a high level of customer
satisfaction through a variety of techniques, including 24-hour customer
service. We will continue to support local customer service through its direct
sales force and its retail stores. We believe that Sygnet's emphasis on superior
customer service has enabled it to achieve an average monthly churn rate of 1.4%
for the year ended December 31, 1998.
 
    CONTINUED SYSTEM DEVELOPMENT.  We believe that increasing capacity and
upgrading our systems will attract additional subscribers, enhance the use of
our systems by existing subscribers, increase roaming activity and further
enhance the overall efficiency of the network. Sygnet upgraded its Erie,
Youngstown and Pennsylvania markets with TDMA IS-136 digital technology to
enable it to increase roaming (by servicing the increasing number of digital
cellular subscribers and PCS subscribers with dual mode telephones) and provide
enhanced capabilities, including caller ID, longer battery life and zone
billing. Sygnet's digital system covered approximately 84% of its subscribers at
September 30, 1998. We plan to upgrade Sygnet's New York market to TDMA IS-136
in 1999 which will expand digital coverage to substantially all of its markets.
Since the beginning of 1995, Sygnet has spent approximately $56.2 million to
upgrade and expand its network. We intend to continue to improve coverage,
increase capacity and build out its systems, and plans to invest approximately
$16.0 million in 1999, which amount includes upgrading its New York system to
TDMA IS-136. See "--Technology and System Development."
 
MARKETS AND SYSTEMS
 
    We conduct our operations in a single large cluster of properties with a
population of approximately 2.4 million and 178,751 subscribers in northeastern
Ohio, western Pennsylvania and western New York. The cluster includes four
markets: the Youngstown market, the Erie market, the Pennsylvania market, and
the New York market. As of December 31, 1998, we had converted 130 of our 181
cell sites to TDMA IS-136 digital service. The following is a description of our
cellular markets.
 
                                       45
<PAGE>
YOUNGSTOWN MARKET
 
    GENERAL.  Our Youngstown market includes the Youngstown, Ohio MSA, the
Sharon, Pennsylvania MSA and the Ohio 11 RSA. Sygnet initiated cellular
operations in the Youngstown market in 1985 when it acquired its license from
the FCC for the Youngstown, Ohio MSA.
 
    LOCATION.  Our Youngstown market covers a contiguous area that is located at
a midway point between Pittsburgh and Cleveland along the Ohio Turnpike and
Interstate 76 and includes Interstate 80, a major transportation access route
from the midwest to New York City.
 
    MARKETING.  Sygnet operates under the brand name Wilcom Cellular in our
Youngstown market. The Company currently has 18 retail locations and
approximately 22 sales agents in the area.
 
    SYSTEMS.  There are 55 cell sites covering substantially all of the total
population in our Youngstown market. Sygnet has completed upgrading its system
in this area to analog/TDMA IS-136 digital service.
 
ERIE MARKET
 
    GENERAL.  Our Erie market includes the Erie, Pennsylvania MSA. Sygnet
initiated cellular operations in the Erie market in September 1995 following the
Erie Acquisition.
 
    LOCATION.  Our Erie market covers a contiguous area that includes Interstate
90, which connects Buffalo and Cleveland, and Interstate 79, which connects Erie
directly to Pittsburgh.
 
    MARKETING.  Sygnet operates under the brand name CELLULAR
ONE-Registered Trademark- in our Erie market, Sygnet currently has eight retail
locations and approximately 12 sales agents in the area.
 
    SYSTEMS.  There are 14 cell sites covering substantially all of the total
population in our Erie market. Sygnet has upgraded its system in this area to
analog/TDMA IS-136 digital service.
 
PENNSYLVANIA MARKET
 
    GENERAL.  Our Pennsylvania market includes Pennsylvania 1 RSA, Pennsylvania
2 RSA, Pennsylvania 6 RSA and Pennsylvania 7 RSA. Sygnet operated the
Pennsylvania 2 RSA under an interim operating authority which was terminated
upon the granting by the FCC of a permanent license to its present owner,
Pinnellas Communications. On June 8, 1998, Sygnet entered into an agreement with
Pinellas Communications to purchase the Pennsylvania 2 RSA. Since then, Sygnet
has been operating Pennsylvania 2 under a management and lease agreement with
Pinellas Communications, which will continue in effect until the FCC's grant of
the license to Pinellas Communications is no longer subject to reconsideration
or judicial review. The FCC has, however, separately approved the assignment of
the license from Pinellas Communications to Sygnet.
 
    LOCATION.  Our Pennsylvania market covers a contiguous area that includes
Interstate 79 and Interstate 80, which link the major population centers in
north-central Pennsylvania, including Pittsburgh and Erie. Our Pennsylvania
market also includes Route 60, a recently completed toll road, which serves as
an expressway to the Pittsburgh International Airport.
 
    MARKETING.  We operate under the brand name CELLULAR
ONE-Registered Trademark- in our Pennsylvania market. We currently have 12
retail locations and approximately 15 sales agents in the area.
 
    SYSTEMS.  There are 62 cell sites covering substantially all of the total
population in our Pennsylvania market. Sygnet has substantially completed
upgrading its system in this area to analog/TDMA IS-136 digital service. Upon
acquisition of Pennsylvania 2 RSA from Pinellas, we will build out this system
and install TDMA IS-136 digital service.
 
                                       46
<PAGE>
NEW YORK MARKET
 
    GENERAL.  Our New York market is composed of the New York 3 RSA. Sygnet
initiated cellular operations in the New York market in October 1996.
 
    LOCATION.  Our New York market is located in the western part of New York
and includes six counties. The system borders Buffalo and Rochester to the
north, Erie, Pennsylvania to the west and Binghamton/Elmira to the east.
Interstates 90 and 390 and Route 17 run through the New York region. Interstate
90 (the New York Thruway) connects Buffalo, Rochester and Erie. Interstate 390
connects Rochester, Corning, Binghamton and Elmira. Route 17 connects Interstate
390 west to Interstate 90 in Erie.
 
    MARKETING.  We operate under the brand name CELLULAR
ONE-Registered Trademark- in our New York market. We currently have 13 retail
locations and 11 sales agents in the area.
 
    SYSTEMS.  Our 50 cell sites cover substantially all of the total population
in our New York market. Our systems in this area have not been upgraded to
digital service. We expect to upgrade our New York market to TDMA IS-136 digital
service in 1999.
 
PRODUCTS AND SERVICES
 
    We provide a variety of cellular services and products designed to address a
range of consumer, business and personal security needs. In addition to mobile
voice transmission, we offer ancillary services such as call forwarding,
call-waiting, three-party conference calling, voice message storage and
retrieval and no-answer transfer. The nature of the services we offer varies
depending upon the market area. We also sell cellular equipment at discount
prices and uses free phone promotions to encourage use of its mobile services.
 
    We offer cellular service for a fixed monthly access fee, accompanied by
varying allotments of included or "free" minutes, plus additional variable
charges per minute of use and for custom calling features. Various pricing
programs which are generally based on one year service contracts are utilized.
Unlike some of our competitors, we design rate plans on a market-by-market
basis. Generally, these rate plans include high-volume user plans, medium-volume
user plans, basic plans and economy plans. In general, rate plans which include
a higher monthly access fee include a lower usage rate per minute. An ongoing
review of equipment and servicing pricing is maintained to ensure our
competitiveness and, as appropriate, revisions to pricing of service plans and
equipment are made to meet the demands of the local marketplace.
 
    Sygnet upgraded substantially all of its cellular systems, other than its
New York system, to TDMA IS-136 digital technology to enable it to increase
roaming by servicing the increasing number of digital cellular subscribers and
PCS subscribers with dual mode phones and provide enhanced capabilities,
including caller ID, longer battery life and zone billing. We expect to upgrade
our New York region to TDMA IS-136 digital technology in 1999. Because our
digital switches will be capable of handling both analog and digital
transmission, Sygnet will be able to continue to offer analog cellular service
to those customers who do not transfer to digital handsets. We recently
commenced marketing digital cellular services to our customers.
 
CUSTOMER SERVICE
 
    Customer service remains an essential element of our marketing and operating
philosophy. We are committed to attracting new subscribers and retaining
existing subscribers by providing consistently high-quality customer service. In
each of our markets, we maintain installation and repair facilities and a local
staff, including a market manager, customer service representatives and
technical and sales representatives. Each of our cellular service areas handles
its own customer-related functions such as customer activations, account
adjustments and rate plan changes. Local offices and installation and repair
facilities
 
                                       47
<PAGE>
enable us to service customers better, schedule installations and make repairs.
Through the use of sophisticated, centralized monitoring equipment, we will be
able to centrally monitor the technical performance of its cellular service
areas.
 
    In addition, our customers are able to report cellular telephone service or
account problems 24-hours a day to a call service center on a toll-free access
number (with no airtime charge). We believe that our emphasis on customer
service affords us a competitive advantage over our large competitors.
 
SALES, MARKETING AND DISTRIBUTION
 
    We continue to focus our marketing program on attracting subscribers who are
likely to generate high monthly revenue and low churn rates. We conduct
extensive market research to identify and design marketing programs to attract
these subscribers and tailor distinctive rate plans and roaming rates to
emphasize the quality, value and the advantage of our cellular service. We have
established marketing alliances with neighboring cellular systems to create
larger "home rate" areas in which our customers will pay the same rate for use
of cellular systems belonging to other owners as they pay to us in the
customers' home areas. In addition, these marketing alliances enable us to
increase roaming revenue and attract new subscribers. We market our service
offerings primarily through our direct sales force and retail stores we own. We
also use a network of dealers and other agents, such as electronics stores, car
dealerships and department stores. In addition to these traditional channels,
our marketing team evaluates other, less traditional, methods of distributing
our services and products, such as targeted telemarketing and direct mail
programs.
 
    We market our cellular products and services under the brand names Wilcom
Cellular, in the Youngstown region, and CELLULAR ONE-Registered Trademark-, one
of the most recognized brand names in the cellular industry, in our remaining
regions. The national advertising campaign conducted by the Cellular One Group
enhances our advertising exposure at a fraction of the cost of what we could
achieve alone. See "-- Service Marks."
 
    We train and compensate our sales force in a manner designed to stress the
importance of customer service, high penetration levels and minimum acquisition
costs per subscriber. We believe that our direct sales force is better able to
select and screen new subscribers and select pricing plans that realistically
match subscriber means and needs than are independent agents. In addition, we
motivate our direct sales force to sell appropriate rate plans to subscribers,
thereby reducing churn, by linking payment of commissions to subscriber
retention. As a result, our use of a direct sales force keeps marketing costs
low both directly, because commissions are lower, and indirectly, because
subscriber retention is higher than when independent agents are used.
 
    Our after-sale telemarketing program conducted by our sales force and
customer service personnel helps to reduce customer churn rate. This program
enhances customer loyalty and allows the sales staff to check customer
satisfaction as well as to offer additional calling features, such as voicemail,
call waiting and call forwarding.
 
    At December 31, 1998, we had 26 retail stores and 27 other retail outlets.
The retail stores range in size from 1,500 square feet to 5,000 square feet, and
each retail store is fully equipped to handle customer service and telephone
maintenance and installation. Some of these stores are also authorized warranty
repair centers. Our stores provide subscriber-friendly retail environments
(extended hours, large selection, an expert sales staff and convenient
locations) which make the sales process quick and easy for the subscriber. The
retail outlets, other than retail stores, consist of kiosks in malls and other
stores.
 
ROAMING
 
    We believe that regional roaming is an important service component for many
of our subscribers. We believe that roaming will continue to be a substantial
source of our revenue due, in part, to the fact that
 
                                       48
<PAGE>
our cellular systems are located in rural and suburban areas with a high
concentration of commuting customers and expressway corridors that tend to
result in a significant amount of roaming activity. We have entered into roaming
agreements with operators of cellular systems in adjoining MSAs and RSAs and
others which provide for roaming rates that allow customers to roam at
competitive prices which, in certain instances, are comparable to home area
rates, which also increases usage on all wireless systems, including our
systems. Sygnet's principal roaming partners are AT&T Wireless, AirTouch and SBC
Communications. We also have agreements with PCS providers, including AT&T
Wireless and Sprint, to allow their PCS providers' customers with dual mode
phones to roam in certain of our markets.
 
    We have agreements with NACN, which is the largest wireless telephone
network system in the world linking cellular operators throughout the United
States and Canada. NACN connects key areas across North America so that our
customers can use their cellular phones to place and receive calls in these
areas as easily as they do in their home areas. Through NACN, customers receive
calls automatically without the use of complicated roaming codes as they roam in
more than 5,000 cities and towns in the United States and Canada. In addition,
special services such as call forwarding and call waiting automatically follow
subscribers as they travel. While the industry trend is to reduce roaming rates,
we believe that our roaming rates are generally lower than the rates offered by
others in or near its systems and that our roaming rates are not materially
impacted by this trend. However, we cannot provide any assurance that this trend
will not materially impact us in the future.
 
TECHNOLOGY AND SYSTEM DEVELOPMENT
 
    OVERVIEW.  Historically, most cellular services have transmitted voice and
data signals over analog-based systems, which use one continuous electronic
signal that varies in amplitude or frequency over a single radio channel.
Digital systems, on the other hand, convert voice or data signals into a stream
of digits that is compressed before transmission, enabling a single radio
channel to carry multiple simultaneous signal transmissions. This enhanced
capacity, along with enhancements in digital protocols, allows digital-based
wireless technologies to offer new and enhanced services, such as greater call
privacy and single number (or "find me") service, and more robust data
transmission features, such as "mobile office" applications (including
facsimile, electronic mail and connecting notebook computers with computer/data
networks).
 
    While digital technology serves generally to reduce transmission
interference relative to analog technology, capacity limitations in the 8
kilobit cellular digital handsets now deployed by most digital cellular
operators also cause a perceptible decline in transmission quality. This gap in
transmission quality has proven to be a significant barrier to cellular
operators seeking to switch their customers from analog to digital service.
Enhanced 13 kilobit digital handsets are now available for digital cellular
systems. These new handsets offer improved digital transmission.
 
    SYSTEM DEVELOPMENT.  At December 31, 1998, our network included cellular
switching systems manufactured by Northern Telecom (which presently serves all
areas but the New York market) and Ericsson (which presently serves the New York
market), 181 cell sites and a large microwave network with 151 links. A cellular
switch is the device that controls and processes call signals. Substantially all
of our system (excluding its New York system) supports AMPS and TDMA services.
As of December 31, 1998, we had converted 130 of our 181 cell sites to TDMA
IS-136 digital technology. We intend to upgrade our New York market to TDMA
IS-136 digital technology with Northern Telecom equipment in 1999. We will
develop or build out our cellular service areas by adding channels to existing
cell sites and by building new cell sites with an emphasis on improving coverage
for hand-held phones in heavily-trafficked areas. Such development is designed
to increase capacity and to improve coverage in response to projected subscriber
demand and in response to competitive factors. Projected subscriber demand is
calculated for each cellular service area on a cell-by-cell basis. Sygnet has
historically met such demand through a combination of augmenting channel
capacity in existing cell sites and building new cell sites.
 
                                       49
<PAGE>
    We expect that system expansion by cell site construction will enable us to
continue to add and retain subscribers, enhance subscriber use of the systems,
increase roamer traffic due to the larger geographic area covered by the
cellular network and further enhance the overall efficiency of the network. We
believe that the increased cellular coverage will have a positive impact on our
market penetration and subscriber usage.
 
    We lease most of the 134 cellular towers we use. In connection with the
Sygnet acquisition, we sold substantially all of our 124 cellular towers in the
Tower Sale Leaseback. See "Certain Transactions."
 
    DIGITAL TECHNOLOGY.  Digital signal transmission is accomplished through the
use of frequency management technologies, or "protocols." These protocols
"manage" the radio channel either by dividing it into distinct time slots or by
assigning specific coding instructions to each packet of digitized data that
comprises a signal. Our primary digital technology or "protocol" is TDMA (Time
Division Multiple Access) which is a satellite and cellular phone technolgy that
interleaves multiple digital signals onto a single high-speed channel. For
cellular, it divides each channel into three subchannels providing service to
three users instead of one. Another digital technology or "protocol" that is
common in the industry is CDMA (Code Division Multiple Assess") that converts
analog signals into digital for transmission over our cellular network. It
provides up to 35 times the capacity of the analog network. Currently, we do not
utilize CDMA in any of our markets.
 
    While the FCC has mandated that licensed cellular systems in the U.S. must
utilize compatible analog signaling protocols, at present there is no required
universal digital signaling protocol. Because the CDMA and TDMA protocols are
incompatible, a subscriber of a system that relies on TDMA technology, for
example, will be able to use his handset when traveling in an area served only
by CDMA, only if it is a dual-mode handset that permits the subscriber to use
the digital cellular system in that area. Dual-mode handsets for TDMA/CDMA are
not yet available and analog/TDMA handsets have only recently become available.
However, the FCC or industry organizations may decide to move toward a universal
digital switching protocol in the future.
 
   
    We believe that the primary advantages and disadvantages of TDMA and CDMA
are that CDMA generally provides a greater capacity than TDMA so that more calls
can be handled at one time, while TDMA is less difficult and, therefore, less
expensive to maintain. We believe that it is highly unlikely that CDMA would
become the accepted standard in the cellular telephone industry. However, if
such should occur, we expect that we would replace our TDMA with CDMA
technology, which would require us to make significant capital expenditures.
Because we believe it is so unlikely that CDMA will become the accepted
standard, we have not estimated the cost we would incur in such event.
    
 
    Over the next decade, we expect that many cellular systems will convert from
analog to digital technology due, in part, to capacity constraints in many of
the larger cellular markets, such as New York, Los Angeles and Chicago. As
carriers reach limited capacity levels, certain calls may be unable to be
completed, especially during peak hours. Digital technology increases system
capacity and offers other advantages, often including improved overall average
signal quality, improved call security, potentially lower incremental costs for
additional subscribers and the ability to provide data transmission services.
The conversion from analog to digital technology is expected to be an
industry-wide process that will take a number of years to complete. While we do
not believe that our network will experience capacity constraints in the
foreseeable future that would require converting our network from analog to
digital technology, we have converted our systems, other than our New York
systems, to TDMA IS-136 digital service so that our subscribers will enjoy the
added benefits of digital technology, and we will benefit from increased roamer
revenue (by servicing the increasing number of digital cellular subscribers and
PCS subscribers with dual mode phones).
 
    INFORMATION SYSTEMS.  Our home subscriber billing functions our cellular
operations are provided by International Telecommunications Data Service
("ITDS"), which is also the primary provider of billing services for Dobson
Communications. Proprietary software furnished by ITDS serves all functions of
 
                                       50
<PAGE>
billing for our corporate and retail locations. We handle all administrative and
customer maintenance functions, while invoice processing and printing is handled
by ITDS. We use complementing software to the billing system allowing the use of
credit, collection, and switch interfaces.
 
SERVICE MARKS
 
    Through Sygnet, we are currently licensed to use the CELLULAR
ONE-Registered Trademark- service mark for our cellular telephone operations in
our Erie, New York and Pennsylvania markets. CELLULAR ONE-Registered Trademark-
is a registered service mark owned by Cellular One Group, a Delaware general
partnership of Cellular One Marketing, Inc., a subsidiary of SWBM, together with
Cellular One Development, Inc., a subsidiary of AT&T Wireless, and Vanguard. We
use the CELLULAR ONE-Registered Trademark- service mark to identify and promote
our cellular telephone service pursuant to licensing agreements with Cellular
One Group. Licensing and advertising fees are determined based upon the
population of the licensed areas. Under these licensing agreements, we must
provide high-quality cellular telephone service to its customers and maintain a
certain minimum overall customer satisfaction rating in surveys commissioned by
Cellular One Group. Our licensing agreements are for five-year terms that expire
beginning in 2001. Sygnet may renew these agreements, subject to satisfaction of
certain operating standards, for two additional five-year terms. See "Risk
Factors--Reliance on use of third-party service mark."
 
    We currently operate in the Youngstown region under the unregistered
tradename "Wilcom Cellular." Sygnet also uses "Sygnet Wireless, Inc." and
"Sygnet Communications, Inc." as unregistered tradenames.
 
COMPETITION
 
    We compete with various companies in each of our markets. Overall, we
compete against the following four distinct cellular system operators:
 
<TABLE>
<CAPTION>
MARKETS                          CELLULAR COMPETITORS
- -------------------------------  -------------------------------------------------------------
<S>                              <C>
Erie                             GTE Mobilnet
New York                         Frontier
Pennsylvania                     ALLTEL and Bell Atlantic
Youngstown                       ALLTEL
</TABLE>
 
    PCS licenses in our markets have been awarded to Ameritech Wireless, Aerial
Communications, AT&T Wireless, Devon Mobile Communications, New England
Wireless, Nextwave and Omnipoint. To date no PCS licensee is actively marketing
PCS services in our markets, although certain licensees have built out portions
of the highway corridors.
 
    The wireless telecommunications industry is experiencing significant
technological change, as evidenced by the increasing pace of improvements in the
capacity and quality of digital technology, shorter cycles for new products and
enhancements, and changes in consumer preferences and expectations. Accordingly,
we expect competition in the wireless telecommunications business to be dynamic
and intense as a result of the entrance of new competitors and the development
of new technologies, products and services.
 
    Each of our markets is served by other two-way wireless service providers,
including licensed cellular and PCS operators. Many of these competitors have
been operating for a number of years, currently serve a substantial subscriber
base and have significantly greater financial and technical resources than those
available to us. Some of our competitors market other services, such as long
distance, landline local exchange services and internet access, with their
wireless telecommunication service offerings. Several of our competitors are
operating, or planning to operate, through joint ventures and affiliation
arrangements, wireless telecommunications systems that encompass most of the
United States.
 
                                       51
<PAGE>
    In each of our markets, we compete primarily against one other
facilities-based cellular carrier. We compete for customers based principally
upon price, the services and enhancements offered, the technical quality of the
cellular system, customer service, system coverage and capacity. We expect that
this competition will increase to the extent that licenses are transferred from
smaller, stand-alone operators to larger, better capitalized and more
experienced cellular operators that may be able to offer consumers certain
network advantages.
 
    We also face competition to a lesser extent from PCS, ESMR and mobile
satellite service ("MSS") systems, as well as from resellers of these services
and cellular service. In the future, we may also compete more directly with
traditional landline telephone service providers. Continuing technological
advances in telecommunications make it impossible for us to predict the extent
of future competition. However, due to the depth and breadth of these
competitive services offered by operators using these other technologies, such
competition could be significant and we expect it to become more intense.
Recently, the FCC has created potential sources of new competition by auctioning
additional PCS licenses, as well as licenses for Wireless Communications
Services, local multipoint Distribution Service and 220-222Mhz service. Further,
the FCC has announced plans to auction licenses in the General Wireless
Communications Services.
 
    The FCC requires that all cellular system operators provide service to
resellers on a nondiscriminatory basis. A reseller provides cellular service to
customers but does not hold an FCC license or own cellular facilities. Instead,
the reseller buys blocks of cellular telephone numbers from a licensed carrier
and resells service through its own distribution network to the public.
Therefore, a reseller may be both a customer of a cellular licensee's services
and a competitor of that licensee. Several well-known telecommunications
companies resell cellular service as a complement to their long distance, local
telephone, paging, cable television or internet offerings.
 
    The most likely future source of our direct competition in the near term
from a new technology is broadband PCS. Broadband PCS services consist of
wireless two-way telecommunications services for voice, data and other
transmissions employing digital micro-cellular technology. PCS operates in the
1850 to 1990 MHz band. PCS technology utilizes a network of small, low-powered
transceivers placed throughout a neighborhood, business complex, community or
metropolitan area to provide customers with mobile and portable voice and data
communications. A PCS system operates under a protected geographic service area
license granted by the FCC for either an Major Trading Area ("MTA") or Basic
Trading Area ("BTA") on one of six frequency blocks allocated for broadband PCS
service. The FCC has divided the United States and its possessions and
territories into PCS markets made up of 493 BTAs and 51 MTAs. As many as six
licensees will compete in each PCS service area. The FCC has allocated 120 MHz
of radio spectrum in the 2 GHz band for licensed broadband PCS services. The FCC
divided the 120 MHz of spectrum into six individual blocks, each of which is
allocated to serve either MTAs or BTAs. The spectrum allocation includes two 30
MHz blocks (A and B Blocks) licensed for each of the 51 MTAs, one 30 MHz block
(C Block) licensed for each of the 493 BTAs, and three 10 MHz blocks (D, E and F
Blocks) licensed for each of the 493 BTAs, a total of more than 2,000 licenses.
Currently, the FCC is in the process of re-authorizing nearly 350 PCS licenses
in the C, D, E and F Blocks. Many PCS licensees that will compete with us have
access to substantial capital resources. In addition, many of these companies or
their predecessors and affiliates already operate large cellular telephone
systems and thus bring significant wireless experience.
 
    ESMR is a wireless communications service supplied by converting analog SMR
services into an integrated, digital transmission system. The ESMR system
incorporates characteristics of cellular technology, including multiple low
power transmitters and interconnection with the landline telephone network. ESMR
service providers, such as Nextel, may compete with analog cellular service by
providing high quality digital communication technology, lower rates, enhanced
privacy and additional features such as electronic mail and built-in paging.
ESMR handsets are likely to be more expensive than cellular telephones.
 
                                       52
<PAGE>
    A consortium of telecommunications providers known as American Mobile
Satellite Corporation has been licensed by the FCC to provide MSS and is
currently providing such services. The FCC has also licensed four entities to
provide MSS as low earth-orbit satellite-based systems. One such licensee,
controlled by Motorola, operates a low earth-orbit satellite-based system called
"Iridium" and recently initiated such service in some markets. None of the other
licensees have yet launched MSS service. Other proposals for MSS are pending
before the FCC. The FCC is developing rules for these services and international
and foreign regulatory authorities must also approve aspects of some MSS
services. Mobile satellite systems could augment or replace communications
within land-based cellular systems. While we may experience increased
competition from low earth-orbit satellite-based systems in the future, to date,
such systems have not affected our operations.
 
    The commercial development and deployment of most of these new technologies
remain in an early phase. We expect this activity to be focused initially in
relatively large markets in view of the substantial costs involved in building
and launching systems using these technologies. We believe that we can
effectively face this competition from our position as an incumbent in the
cellular industry with
 
    - a high quality network,
 
    - an extensive footprint that is not capacity constrained,
 
    - strong distribution channels,
 
   
    - superior customer service capabilities, and
    
 
    - an experienced management team.
 
    Since we operate in medium to small markets, the new entrants may be unable
to offer wireless service at competitive rates in many of our markets in the
near term. The extensive capital expenditures required to deploy infrastructure
are more readily justifiable from an economic standpoint in larger, more densely
populated urban areas, than in the rural areas in which we operate.
 
REGULATION
 
    OVERVIEW.  The wireless telecommunications industry is subject to extensive
governmental regulation on the federal level and to varying degrees on the state
level. Many aspects of such regulation have been impacted by the enactment of
the Telecommunications Act and have been the subject of administrative
rulemakings that are significant to our operations. The following is a summary
of the federal laws and regulations that materially affect our cellular
operations and a description of certain applicable state laws. This section does
not purport to be a summary of all present and proposed federal, state and local
regulations and legislation relating to the cellular communications industry.
 
    FEDERAL REGULATION.  The licensing, construction, modification, operation,
ownership and acquisition of cellular telephone systems are subject to
regulations and policies of the FCC under the Communications Act of 1934, as
amended (the "Communications Act"). The FCC has promulgated rules and
regulations governing, among other things, applications to construct and operate
cellular communications systems, applications to transfer control of or assign
cellular licenses, and technical and operational standards for the operation of
cellular systems.
 
    The FCC licenses cellular systems in accordance with 734 geographically
defined market areas comprising 306 MSAs and 428 RSAs. In each market, the
frequencies allocated for cellular telephone use are divided into two equal 25
MHz blocks and designated as wireline and non-wireline. Apart from the different
frequency blocks, there is no technical difference between wireline and
non-wireline cellular systems and the operational requirements imposed on each
by the FCC are the same. However, no entity may own, directly or indirectly,
more than a 5% interest in both systems in any one MSA or RSA, unless such
ownership will not pose a substantial threat to competition, and no entity may,
directly or indirectly, own a controlling interest in, or otherwise have the
ability to control, both such systems. The FCC may
 
                                       53
<PAGE>
   
prohibit or impose conditions on transfers of licenses. In addition, under FCC
rules, no person or entity may have an attributable interest in a total of more
than 45 MHz of licensed, broadband PCS, cellular and ESMR spectrum regulated as
Commercial Mobile Radio Services ("CMRS") with significant overlap in any
geographic areas. For this purpose, significant overlap will occur when at least
10% of the population of the PCS licensed service areas (measured by the 1990
census) is within the CGSA (as defined below) and/or the ESMR service area. The
FCC is currently considering whether it should modify this 45Mhz spectrum cap.
    
 
    Under FCC rules, the authorized service area of a cellular provider in each
of its markets is referred to as the "Cellular Geographic Service Area" or
"CGSA." The CGSA may conform exactly with the boundaries of the FCC designated
MSA or RSA, or it may be larger or smaller, subject to certain minimum service
requirements. A cellular licensee has the exclusive right to expand its CGSA
boundaries within the licensee's MSA or RSA for a period of five years after
grant of the licensee's initial construction permit. At the end of this
five-year build-out period, however, any entity may apply to serve portions of
the MSA or RSA of at least 50 square miles in size outside the licensee's then
designated CGSA. Sygnet's five year buildout period has expired in all of its
existing markets, with the exception of Pennsylvania 2 RSA.
 
   
    The FCC generally grants cellular licenses for terms of ten years, that are
renewable upon application to the FCC. Near the conclusion of the license term,
licensees must file applications for renewal of licenses to obtain authority to
operate for up to an additional 10-year term. The FCC may revoke our licenses
and may deny our license renewal applications for cause after appropriate notice
and hearing. The FCC will award a renewal expectancy to a cellular licensee that
meets certain standards of past performance. If we receive a renewal expectancy,
it is very likely that the FCC will renew our cellular license without becoming
subject to competing applications. To receive a renewal expectancy, we must show
that we have provided "substantial" service during our past license term, and we
have substantially complied with applicable FCC rules and policies and the
Communications Act. The FCC defines "substantial" service as service which is
sound, favorable and substantially above a level of mediocre service that might
only minimally warrant renewal. If we do not receive a renewal expectancy, the
FCC will accept competing applications for the license and the FCC may award the
license to another entity. The FCC has renewed Sygnet's cellular licenses
without challenge or competing applications.
    
 
    Cellular service providers also must satisfy a variety of FCC requirements
relating to technical and reporting matters. One such requirement is the
coordination of proposed frequency usage with adjacent cellular users,
permittees and licensees in order to avoid interference between adjacent
systems. In addition, the height and power of base station transmitting
facilities and the type of signals they emit must fall within specified
parameters. We must pay certain annual regulatory fees to the FCC in connection
with our cellular operations, as well as other fees necessary to support
centralized numbering, administration of telephone numbers, the provision of
telecommunications relay services for the hearing-impaired and applications'
filing fees.
 
    The Communications Act requires prior FCC approval for substantive
non-proforma transfers or assignments of a controlling interest in any license
or construction permit, or any rights thereunder. All of the applications
requesting the FCC's approval for the transfers of control. Although we cannot
provide any assurance that any future requests for approval of applications
filed will be approved or acted upon in a timely manner by the FCC, we have no
reason to believe such requests or applications would not be approved or granted
in due course.
 
   
    The FCC may deny applications for FCC authority and in extreme cases
licenses, revoke licenses if it finds that an entity lacks the requisite
"character" qualifications to be a licensee. In making the determination, the
FCC considers whether an applicant or licensee has been the subject of adverse
findings in a judicial or administrative proceeding involving felonies, the
possession or sale of unlawful drugs, fraud, antitrust violations or unfair
competition, employment discrimination, misrepresentations to the FCC or other
government agencies, or serious violations of the Communications Act or FCC
regulations.
    
 
                                       54
<PAGE>
    If the FCC determines that the public interest would be served, it may
revoke our cellular licenses or require an ownership restructuring if greater
than 25 percent of our equity is owned of record or voted by aliens or their
representatives, a foreign government or its representative, or any corporation
organized under the laws of a foreign country. The FCC will generally permit
additional indirect ownership in excess of the statutory 25 percent benchmark
where that interest is to be held by an entity or entities from member countries
of the World Trade Organization. For investors from non-World Trade Organization
countries, however, the FCC will determine whether the home country of the
foreign investor extends reciprocal treatment called "equivalent competitive
opportunities" to U.S. entities. If such opportunities do not exist, it is
unlikely that the FCC will permit investment beyond the 25 percent benchmark.
These restrictions could adversely affect our ability to attract additional
equity financing. Currently, none of our equity is owned of record, to our
knowledge, beneficially by any non-United States citizen or government.
 
   
    The FCC also regulates a number of other aspects of the cellular business.
For example, the FCC regulates cellular resale practices and recently extended
the resale requirement to broadband PCS and ESMR licensees. Cellular, PCS and
ESMR providers may not restrict any customer's resale of their services or
unreasonably discriminate against resellers of their services. All resale
obligations for cellular, broadband PCS and ESMR operators will terminate on
November 24, 2002. Moreover, federal legislation enacted in 1993 requires the
FCC to reduce the disparities in the regulatory treatment of similar mobile
services, such as cellular, PCS and ESMR. Under this new regulatory structure,
all of our cellular licenses are classified as CMRS. As a CMRS provider, we are
regulated as a common carrier. The FCC, however, has exempted cellular services
from some typical common carrier regulations, such as tariff filings. The FCC
has also adopted requirements for cellular and other CMRS providers to implement
basic and enhanced 911 services. These services provide emergency service
providers with the ability to better identify and locate callers using wireless
services, including callers using special devices for the hearing impaired. We
expect to implement these services in several stages ending in October 2001.
Federal regulations also require cellular and PCS carriers to provide law
enforcement agencies with capacity to support lawful wiretaps by March 12, 2001
and technical assistance for wiretaps by June 30, 2000. These wireless 911 and
law enforcement requirements may necessitate that we incur additional capital
obligations to make necessary system changes.
    
 
    In addition, the FCC regulates the ancillary service offerings that cellular
and PCS licensees can provide and recently revised its rules to permit cellular,
broadband PCS, paging and ESMR licensees to offer fixed services on a co-primary
basis along with mobile services. This rule change may facilitate the provision
of wireless local loop service, which involves the use of wireless links to
provide local telephone service by cellular licensees, as well as broadband PCS
and ESMR licensees. In this regard, the FCC also recently adopted telephone
number portability rules for local exchange carriers, as well as cellular,
broadband PCS and ESMR licensees, that could facilitate the development of local
exchange competition, including wireless local loop service. The new number
portability rules generally require cellular, broadband PCS and ESMR licensees
to have the capability to deliver calls from their systems to ported numbers by
December 31, 1998 and offer number portability and roaming to ported numbers by
November 24, 2002. These requirements may result in added capital expenditures
by us to make necessary system changes, although we currently have no plans for
any such expenditures.
 
    The Telecommunications Act, which makes significant changes to the
Communications Act and terminated the antitrust consent decree applicable to the
Regional Bell Operating Companies ("RBOCs"), affects the telecommunications
industry. This legislation, among other things, affects competition for local
telecommunications services, interconnection arrangements for carriers,
universal service funding and the provision of interexchange services.
 
    The Telecommunications Act requires state public utilities commissions
and/or the FCC to implement policies that mandate reciprocal compensation
between local exchange carriers, a category that will, for these purposes,
include cellular carriers, for interconnection services at rates more closely
related to cost. In a rulemaking proceeding pertaining to interconnection
between local exchange carriers ("LECs") and
 
                                       55
<PAGE>
   
CMRS providers such as us, the FCC concluded that LECs are required to
compensate CMRS providers for the reasonable costs incurred by such providers in
terminating traffic that originates on LEC facilities, and vice versa.
Consistent with this ruling, the FCC has determined that LECs may not charge a
CMRS provider or other carrier for terminating LEC-originated traffic. Nor may
LECs charge CMRS providers for number activation and use fees. Depending on
further FCC disposition of these issues, we may or may not be successful in
securing refunds, future relief or both, with respect to charges for termination
of LEC-originated local traffic. If the FCC ultimately resolves these issues in
favor of CMRS providers, then we will pursue relief through settlement
negotiations, administrative complaint procedures or both. If these issues are
ultimately decided in favor of the LECs, we likely would be required to pay all
past due contested charges and may also be assessed interest and late charges
for the withhold amounts. These requirements could in the future have a material
effect on us.
    
 
    The Telecommunications Act requires the FCC to adopt rules that require
interstate communications carriers, including cellular carriers, to "make an
equitable and non-discriminatory contribution" to a universal service fund that
reimburses communications carriers that provide basic communications services to
users who receive services at subsidized rates. These rules could result in
increased costs for our cellular operations. The Telecommunications Act also
eases the restrictions on the provision of interexchange telephone services by
wireless carriers affiliated with RBOCs. RBOC-related wireless carriers have
interpreted the legislation to permit immediate provision of long distance call
delivery for their cellular customers.
 
    Additionally, the Telecommunications Act specifically exempts all cellular
carriers from the obligation to provide equal access to interstate long distance
carriers. However, the Telecommunications Act gives the FCC the authority to
impose rules to require unblocked access through carrier identification codes or
800/888 numbers, so that cellular subscribers are not denied access to the long
distance carrier of their choosing, if the FCC determines that the public
interest so requires. We currently provide "dial around" equal access to all of
its customers.
 
    The Telecommunications Act also imposes restrictions on a telecommunications
carrier's use of customer proprietary network information without prior customer
approval. FCC rules implementing these restrictions are being reviewed but have
the potential to impose new costly obligations on us and impose burdens on our
current marketing activities.
 
    The overall impact of the Telecommunications Act on our business is unclear
and will likely remain so for the foreseeable future. New limitations on local
zoning requirements may facilitate the construction of new cell sites and
related facilities. See "--State, Local and Other Regulation." However, other
provisions of the statute relating to interconnection, telephone number
portability, equal access, use of customer proprietary network information and
resale could subject us to additional costs and increased competition.
 
    STATE, LOCAL AND OTHER REGULATION.  The Communications Act preempts state or
local regulation of the entry of, or the rates charged by, any CMRS or any
private mobile service provider, which includes cellular telephone service
providers. The FCC has denied the petition of eight states to continue their
rate regulation authority, including authority over cellular operators. As a
practical matter, we are free to establish rates and offer new products and
service with a minimum of regulatory requirements. The three states in which we
operate maintain nominal oversight jurisdiction, primarily focusing upon prior
approval of acquisitions and transfers and resolution of customer complaints.
 
    The location and construction of cellular transmitter towers and antennas
are subject to FCC and Federal Aviation Administration regulations and are
subject to federal, state and local environmental regulation, as well as state
or local zoning, land use and other regulation. Before a system can be put into
commercial operation, the grantee of a construction permit must obtain all
necessary zoning and building permit approvals for the cell sites and microwave
tower locations and must secure state certification, if required. The time
needed to obtain zoning approvals and requisite state permits varies from market
to
 
                                       56
<PAGE>
market and state to state. Likewise, variations exist in local zoning processes.
In addition, any proposed site must comply with the FCC's environmental rules.
 
   
    Zoning and planning regulation may become more restrictive in the future as
many broadband PCS carriers are now seeking sites for network construction. The
Telecommunications Act provides limited relief from state and local laws that
arbitrarily restrict the expansion of personal wireless services, which include
cellular, PCS and ESMR systems. For example, the Telecommunications Act now
precludes localities from denying zoning approval for cell sites based upon
electromagnetic emission concerns, if the cellular operator's system complies
with FCC emissions standards. In addition, the Telecommunications Act prohibits
localities from adopting zoning requirements that prohibit or have the effect of
prohibiting personal wireless services, or that discriminate between
"functionally equivalent" services. Notwithstanding these new requirements,
wireless carriers have had various degrees of success in challenging offensive
zoning requirements and it is still unclear whether the costs of expanding
cellular systems by adding cell sites will increase and whether significant
delays will be experienced due to local zoning regulations.
    
 
   
    We cannot assure you that any state or local regulatory requirements
currently applicable to our systems will not be changed in the future or that
regulatory requirements will not be adopted in those states and localities which
currently have none.
    
 
   
    FUTURE REGULATION.  From time to time, legislation that could affect us,
either beneficially or adversely, is proposed by federal or state legislators.
We cannot assure you that federal or state legislation will not be enacted, or
that regulations will not be adopted or actions taken by the FCC or state
regulatory authorities, that might adversely affect our business. Changes such
as the allocation by the FCC of radio spectrum to services that compete with our
business could adversely affect our operating results.
    
 
EMPLOYEES AND AGENTS
 
    As of December 31, 1998, we had approximately 464 employees and had
agreements with more than 136 independent sales agents. None of Sygnet's
employees are represented by a labor organization, and we consider our employee
relations to be good.
 
PROPERTIES
 
    Our headquarters are in Oklahoma City, Oklahoma. Sygnet owns office
buildings in Youngstown and Warren, Ohio and land for a proposed office site in
Boardman, Ohio. As of December 31, 1998, our cellular operations leased 53 and
owned 2 retail sales and administrative offices. We will review these leases
from time to time and may, in the future, lease or acquire new facilities as
needed. We do not expect to encounter any material difficulties in meeting our
future needs for any leased space. We collectively owned and leased 183 cell
sites as of December 31, 1998. See "Certain Transactions."
 
LEGAL PROCEEDINGS
 
    We are not currently involved in any pending legal proceedings that
individually or in the aggregate are material. We are a party to routine filings
and customary regulatory proceedings with the FCC and state public utility
commissions relating to its operations.
 
                                       57
<PAGE>
   
                                   MANAGEMENT
    
 
DIRECTORS AND EXECUTIVE OFFICERS
 
    Upon completion of the Sygnet Transactions, Albert H. Pharis Jr., Sygnet's
former President and Chief Executive Officer, became a director of and entered
into a consulting arrangement with Dobson under which he is to provide services
to all of its cellular subsidiaries. Dana L. Schmaltz also joined the Board of
Directors of Dobson Communications and its cellular subsidiaries upon completion
of the Sygnet Transactions. In addition, Craig T. Sheetz, Sygnet's former Vice
President and Chief Financial Officer, became Executive Vice President of
Operations of Dobson Communications for all of its cellular subsidiaries.
 
    The directors and executive officers of Dobson/Sygnet are set forth below.
Certain of the officers and directors hold or have held positions in Dobson
Communications and several of its subsidiaries. The ages of the persons set
forth below are as of December 31, 1998.
 
<TABLE>
<CAPTION>
NAME                                     AGE                                     POSITION
- -----------------------------------      ---      -----------------------------------------------------------------------
<S>                                  <C>          <C>
Everett R. Dobson (1)..............          39   Chairman of the Board and Chief Executive Officer
G. Edward Evans....................          37   President and Chief Operating Officer
Bruce R. Knooihuizen...............          42   Vice President and Chief Financial Officer
Stephen T. Dobson (1)..............          35   Secretary, Treasurer and Director
Russell L. Dobson (1)..............          63   Director
Justin L. Jaschke..................          40   Director
Albert H. Pharis, Jr...............          48   Director
Dana L. Schmaltz...................          31   Director
</TABLE>
 
- ------------------------
 
(1) Everett R. Dobson and Stephen T. Dobson are sons of Russell L. Dobson.
 
    EVERETT R. DOBSON has served as a Chairman and Chief Executive Officer of
the Company since its formation in 1998 and as a director and officer of Dobson
Communications since 1982. From 1990 to 1996, he served as a director, President
and Chief Operating Officer of Dobson Communications and President of Dobson
Communications' cellular subsidiaries. He was elected Chairman of the Board and
Chief Executive Officer of Dobson Communications in April 1996. Mr. Dobson
served on the board of the Cellular Telecommunications Industry Association
("CTIA") in 1993 and 1994. He holds a B.A. in Economics from Southwestern
Oklahoma State University ("SWOSU") where he currently sits on the SWOSU
Foundation Board and chairs the investment committee.
 
    G. EDWARD EVANS has served as President and Chief Operating Officer of
Dobson/Sygnet since its formation in 1998 and has served as President of Dobson
Communications' cellular subsidiaries since January 1997. Mr. Evans was employed
by BellSouth Mobility, Inc. from 1993 to 1996, serving as General
Manager--Kentucky, director of Field Operations at the company's corporate
office in Atlanta and Director of Marketing--Alabama. He was an Area Manager and
a Market Manager of United States Cellular, Inc. from 1990 to 1993 and was a
Sales Manager of GTE Mobilnet from 1989 to 1990. Mr. Evans serves on the board
of CTIA. He has an M.B.A. from Georgia State University.
 
    BRUCE R. KNOOIHUIZEN has served as Vice President and Chief Financial
Officer of Dobson/Sygnet since its formation in 1998 and has served as Vice
President and Chief Financial Officer of Dobson Communications since July 1996.
From 1994 to 1996, Mr. Knooihuizen was Chief Financial Officer and Secretary for
The Westlink Co. in San Diego, a wireless provider which was formerly an
operating unit of U S WEST. Previously, he was Treasurer and Controller of
Ameritech Cellular from 1990 to 1994, Director, Accounting Operations of
Ameritech Applied Technologies from 1988 to 1990, and Controller of Ameritech
Properties in 1988, all located in Chicago. From 1980 to 1988 he held various
financial and accounting
 
                                       58
<PAGE>
positions with The Ohio Bell Telephone Company. Mr. Knooihuizen received a B.S.
in finance from Miami University in Oxford, Ohio and an M.B.A. in finance from
the University of Cincinnati.
 
    STEPHEN T. DOBSON has been Secretary, Treasurer and a director of
Dobson/Sygnet since its formation in 1998. He has been a director of Dobson
since 1990. He has served as Secretary of Dobson Communications since 1990 and
served as Treasurer of Dobson Communications from 1991 until September, 1998 and
Treasurer and Secretary of Dobson Telephone Company since 1994 and 1990,
respectively. Mr. Dobson has served as President and a director of Dobson
Communications' wireline operations since 1997. Mr. Dobson is a member of the
Western Rural Telephone Association ("WRTA"), National Telephone Cooperative
Association and Telecommunications Resellers Association. He holds a B.S. in
business administration from the University of Central Oklahoma.
 
    RUSSELL L. DOBSON has been a director of Dobson/Sygnet since its formation
in 1998 and of Dobson since 1990 and was Chairman of the Board and Chief
Executive Officer from 1990 to 1996. Mr. Dobson joined his father at Dobson
Telephone Company in 1956 and became the controlling owner and Chief Executive
Officer in 1975 when he purchased his father's interest. He has been active in
many industry-related groups, including the OTA, WRTA and Organization for the
Protection and Advancement of Small Telephone Companies.
 
    JUSTIN L. JASCHKE has been a director of Dobson/Sygnet since its formation
in 1998 and of Dobson Communications since October 1996. Mr. Jaschke has been
the Chief Executive Officer and a Director of Verio, Inc., a privately held
Internet access provider, since its inception in March 1996. Prior to forming
Verio, Inc., Mr. Jaschke served as Chief Operating Officer for Nextel following
its merger with OneComm Corporation ("OneComm") in July of 1995. Mr. Jaschke
served as OneComm's President and a member of its Board of Directors from 1993
until the merger with Nextel. Mr. Jaschke currently serves as Chairman of the
Board of Directors of V-I-A Internet, Inc. and also serves on the Board of
Directors of Metricom, Inc., a wireless data communications provider. From May
1990 to April 1993, Mr. Jaschke served as President and CEO of Bay Area Cellular
Telephone Company. From November 1987 to May 1990, Mr. Jaschke was Vice
President of Corporate Development of PacTel Cellular, and from 1985 to 1987 was
Director of Mergers and Acquisitions of PacTel Corporation. Prior to that, Mr.
Jaschke was a management consultant with Marakon Associates. Mr. Jaschke has a
B.S. in mathematics from the University of Puget Sound and an M.S. in management
from the Massachusetts Institute of Technology Sloan School of Management.
 
    ALBERT H. PHARIS, JR. has served as President, Chief Executive Officer and
Director of Sygnet since Sygnet's inception in 1985. He has been active as a
board member of CTIA since 1985 and as a member of the CTIA Executive Committee
since 1989. He has also been Chairman of CTIA's Small Operators Caucus. Mr.
Pharis became a director of Dobson/Sygnet and of Dobson Communications in
December 1998.
 
    DANA L. SCHMALTZ became a director of Dobson/Sygnet and Dobson
Communications in accordance with the terms of the Stockholders' Agreement dated
December 23, 1998 between Dobson Communications and J.W. Childs Associates, L.P.
Mr. Schmaltz is a Vice President of J.W. Childs Associates, L.P. and has been at
J.W. Childs Associates, L.P. since February 1997. From 1995 to 1997, Mr.
Schmaltz was an associate at DLJ Merchant Banking, Inc. Mr. Schmaltz graduated
from the Harvard Graduate School of Business Administration in 1995.
 
COMPOSITION OF BOARD OF DIRECTORS
 
    Our Board of Directors presently consists of six directors. Our directors
and executive officers are elected to serve until they resign or are removed, or
are otherwise disqualified to serve, or until their successors are elected and
qualified. Our directors are elected for one-year terms at the annual meeting of
stockholders which is held in April of each year. Our officers are appointed at
the Board's first meeting after each annual meeting of stockholders.
 
                                       59
<PAGE>
                           SUMMARY COMPENSATION TABLE
 
<TABLE>
<CAPTION>
                                                                                      SECURITIES
                                           ANNUAL COMPENSATION        OTHER ANNUAL    UNDERLYING
                                     -------------------------------  COMPENSATION   OPTION AWARDS     ALL OTHER
NAME AND PRINCIPAL POSITION(1)         YEAR      SALARY      BONUS         ($)       (# OF SHARES)  COMPENSATION ($)
- -----------------------------------  ---------  ---------  ---------  -------------  -------------  ----------------
<S>                                  <C>        <C>        <C>        <C>            <C>            <C>
Everett R. Dobson..................       1998  $  --      $  --        $  --             --           $   --
  Chairman of the Board and Chief
    Executive Officer
</TABLE>
 
- ------------------------
 
(1) Everett R. Dobson was elected Chief Executive Officer of Dobson/Sygnet on
    July 26, 1998 and he received no compensation from us during 1998.
 
COMPENSATION COMMITTEE INTERLOCKS AND INSIDER PARTICIPATION
 
    We do not have a separate compensation committee of our Board of Directors.
The Board of Directors will set the compensation for its executive officers.
Everett R. Dobson, Chairman of the Board and Chief Executive Officer, and
Stephen T. Dobson, Treasurer and Secretary, are directors and participate in
these deliberations concerning executive officer compensation. Each of our
directors also serves on the board of directors of Dobson Communications and on
the boards of directors of various of its subsidiaries. As such, each of the
directors will participate in the deliberations concerning executive officer
compensation for Dobson Communications and its subsidiaries.
 
STOCK OPTION PLANS
 
   
    Our key employees may participate in the Dobson Communications' 1996 Stock
Option Plan, as amended, which permits the grant of stock options to purchase
Class B Common Stock and Class C Common Stock of Dobson Communications.
    
 
   
                              CERTAIN TRANSACTIONS
    
 
    We have adopted a policy requiring that any material transaction with
persons or entities affiliated with officers, directors, or our principal
stockholders be on terms no less favorable to us than reasonably could have been
obtained in an arm's length transaction with independent third parties. Any
other matters involving potential conflicts of interests are to be resolved by
the Board of Directors on a case-by-case basis.
 
    Dobson Communications provides us with certain administrative services,
including accounting, information systems management, human resources management
and marketing. Additionally, many of our officers are also officers of Dobson
Communications and various of its other subsidiaries. These officers perform
functions for all of subsidiaries of Dobson Communications, including us. We
reimburse Dobson Communications based on its cost of providing the services.
 
   
    We are a party to a tax sharing agreement with Dobson Communications and its
other subsidiaries. As a member of the affiliated group we will join with Dobson
Communications and its other subsidiaries in filing a consolidated federal
income tax return. Under the tax sharing agreement, each subsidiary's
contribution toward the group's consolidated federal income tax liability is
determined as if such party were at all times a separate taxpayer not included
in the group. Based on this determination of separate tax liability, each
subsidiary pays Dobson Communications an amount in lieu of taxes equal to the
amount the subsidiary would be obligated to pay if it filed returns as a
separate taxpayer. If, but only to the extent that, the group realizes a tax
benefit for any taxable year as a result of the inclusion of a subsidiary's tax
items in the determination of tax liability of the group, Dobson Communications
will pay to the subsidiary an amount equal to such tax benefits realized.
    
 
                                       60
<PAGE>
    As part of the Sygnet Transactions, we sold substantially all of Sygnet's
towers to Dobson Tower Company, a wholly owned subsidiary of Dobson
Communications, for $25.0 million. Dobson Tower Company then leased the towers
back to Sygnet under an operating lease, with annual lease payments of
approximately $1.6 million.
 
   
                             PRINCIPAL SHAREHOLDER
    
 
    All of our issued and outstanding capital stock is owned beneficially and of
record by Dobson Communications. Everett R. Dobson beneficially owns capital
stock of Dobson Communications representing 84.8% of the voting power of its
outstanding capital stock.
 
                                       61
<PAGE>
   
                      DESCRIPTION OF CERTAIN INDEBTEDNESS
    
 
NEW BANK FACILITIES
 
    The following summary of the material provisions of the New Bank Facilities
is not complete and is subject to, and is qualified in its entirety by reference
to, the definitive loan documents. Capitalized terms that are used but not
defined in this section have the meanings that are given such terms in the
definitive loan agreement.
 
    The New Bank Facilities are provided to Sygnet by NationsBank, N.A., as
Agent, and include a $50.0 million senior secured, reducing revolving credit
facility (the "Revolving Credit Facility") and a series of three term loans
aggregating $380.0 million ("Term Loan Facilities") to be used for acquisitions,
restricted payments, and to fund capital expenditures, permitted investments,
working capital and other corporate purposes. The maturity dates for these
facilities are:
 
    - The $50.0 million Revolving Credit Facility is scheduled to mature in the
      third quarter of 2005;
 
    - Term Loan A ($125.0 million) is scheduled to mature in the third quarter
      of 2006;
 
    - Term Loan B ($155.0 million) is scheduled to mature in the first quarter
      of 2007; and
 
    - Term Loan C ($100.0 million) is scheduled to mature in the fourth quarter
      of 2008.
 
    Borrowings under the New Credit Facilities bear interest at fluctuating
rates which are based on the "Applicable Margin" and Reserve Adjusted London
Interbank Offered Rates ("LIBOR"). For the Revolving Credit Facility and Term
Loan A the term "Applicable Margin" means:
 
    - the prime rate plus 0.75% to 2.0%; or
 
    - LIBOR plus 1.75% to 3.00%
 
For Term Loan B, the term "Applicable Margin" means:
 
    - the prime rate plus 1.75% to 2.25%; or
 
    - LIBOR plus 2.75% to 3.25%
 
Borrowings under the Revolving Credit Facility and Term Loans A and B will bear
interest at the Applicable Margin plus the greater of
 
       - the Federal Funds Effective Rate plus 0.5%, or
 
       - the prime rate, or
 
       - the Applicable Margin plus LIBOR for interest periods of 1, 2, 3 or 6
         months.
 
Borrowings under Term Loan C will bear interest at LIBOR plus 3.75% for interest
periods of 1, 2, 3 or 6 months.
 
The amount of credit initially available to Sygnet under the Revolving Credit
Facility is $50.0 million and under Term Loan A is $125.0 million.
 
                                       62
<PAGE>
    Commencing with the quarter ending December 31, 2000, the amount of credit
available under the Revolving Credit Facility and Term Loan A will reduce
quarterly under the following annual amortization schedule:
 
<TABLE>
<CAPTION>
YEAR                                                                         ANNUAL AMORTIZATION
- -------------------------------------------------------------------------  -----------------------
<S>                                                                        <C>
2000.....................................................................               5.0%
2001.....................................................................               7.5%
2002.....................................................................               7.5%
2003.....................................................................              12.5%
2004.....................................................................              15.0%
2005.....................................................................              25.0%
2006.....................................................................              27.5%
</TABLE>
 
    The amount of credit initially available under Term Loan B is $155.0
million. Commencing with the quarter ending December 31, 2000, the amount of
credit available for Term Loan B will reduce quarterly under the following
annual amortization schedule:
 
<TABLE>
<CAPTION>
YEAR                                                                         ANNUAL AMORTIZATION
- -------------------------------------------------------------------------  -----------------------
<S>                                                                        <C>
2000.....................................................................               2.5%
2001.....................................................................               2.5%
2002.....................................................................               2.5%
2003.....................................................................               7.5%
2004.....................................................................              15.0%
2005.....................................................................              25.0%
2006.....................................................................              27.5%
2007.....................................................................              17.5%
</TABLE>
 
    The amount of credit initially available to Sygnet under Term Loan C is
$100.0 million. The amount of credit available under Term Loan C will reduce
annually under the following schedule:
 
<TABLE>
<CAPTION>
YEAR                                                                         ANNUAL AMORTIZATION
- -------------------------------------------------------------------------  -----------------------
<S>                                                                        <C>
1999-2006................................................................               1.0%
2007.....................................................................              92.0%
</TABLE>
 
    The commitments under the New Bank Facilities will all be permanently
reduced by
 
    - 100% of the net cash proceeds from sales of assets in excess of $5.0
      million, to the extent not reinvested within 12 months,
 
    - 100% of the net cash proceeds received from certain equity or debt
      issuances, and
 
    - 75% or 50% of excess cash flow, depending on Sygnet's leverage.
 
    In addition, amounts borrowed in respect of the Tower Sale Leaseback shall
be repaid with the net proceeds from the sale of the towers and the commitments
under each of Term Loan A and Term Loan B will decrease by $10.0 million.
 
    Sygnet may prepay advances bearing interest based on the Base Rate at any
time. Sygnet may prepay advances bearing interest based on the LIBOR rate at the
end of an applicable interest period. Term Loan C may be repaid in whole or in
part at:
 
    - 102% of the principal amount through December 31, 1999,
 
    - 101% of the principal amount through December 31, 2001, and
 
                                       63
<PAGE>
    - at 100% thereafter.
 
    The New Bank Facilities contain covenants limiting the ability of Sygnet to
incur debt, make loans, create liens, make guarantees and investments, change
its business, engage in transactions with affiliates, sell assets, enter into
restrictive agreements, engage in sale leaseback transactions, engage in new
business and in mergers and acquisitions. The New Bank Facilities contain other
usual and customary negative and affirmative covenants, including Year 2000
compliance.
 
    The New Bank Facilities restrict Sygnet from declaring and paying
distributions or making restricted payments. However, Sygnet may pay dividends
to pay:
 
    - scheduled interest on the Notes commencing after the first six interest
      payments on the Notes, and
 
    - regularly scheduled payments on up to $120,000,000 in liquidation
      preference value of preferred stock issued by Dobson Communications
      Corporation, commencing January 15, 2003,
 
in each case unless if at the time of such dividend or distribution an event of
default, other than an event of default resulting solely from the breach of a
representation or warranty, exists or would be caused by such dividend or
distribution. With respect to any event of default other than a payment default
and including by way of acceleration, a bankruptcy event with respect to Sygnet,
Dobson Communications or us or any of our respective, restricted subsidiaries or
the loss of a material license or cellular system, Sygnet will not be prohibited
for more than 180 days from paying dividends to us to pay scheduled interest on
the Notes.
 
    Sygnet must comply with certain financial tests and maintain certain
financial ratios, including, among others a requirement that:
 
(1) Sygnet's ratio of total debt to operating cash flow may not exceed
 
    - 7.60 to 1 until June 20, 1999
 
    - 7.25 to 1 from July 1, 1999 to December 31, 1999
 
    - 6.75 to 1 from January 1, 2000 to June 30, 2000
 
    - 6.00 to 1 from July 1, 2000 to December 31, 2000
 
    - 5.50 to 1 from January 1, 2001 to December 31, 2001
 
    - 4.50 to 1 from January 1, 2002 to December 31, 2002
 
    - 3.50 to 1 from January 1, 2003 and thereafter
 
(2) Sygnet's ratio of operating cash flow to its pro forma debt service to equal
    or exceed 1.10 to 1
 
(3) Sygnet's ratio of operating cash flow to its cash interest expense for its
    four most recently ended fiscal quarters must be more than
 
    - 1.25 to 1 until December 31, 1999
 
    - 1.50 to 1 from January 1, 2000 to December 31, 2000
 
    - 1.75 to 1 from January 1, 2001 and thereafter
 
(4) Sygnet's fixed charge coverage ratio on the last day of each fiscal quarter
    must be greater than 1.00 to 1
 
We believe that we are currently in compliance with all of these ratios. In
addition, Dobson Communications Corporation and we are required to maintain a
ratio of debt to operating cash flow.
 
    Failure to satisfy any of the financial covenants will constitute an Event
of Default under the New Bank Facilities, permitting the lenders, after notice,
to terminate the commitment and/or accelerate payment of outstanding
indebtedness notwithstanding the ability of Sygnet to meet its debt service
 
                                       64
<PAGE>
obligations. The New Bank Facilities include other customary events of default
including, without limitation:
 
    - loss of franchise or any material license;
 
    - breach of representations, warranties and covenants;
 
    - insolvency or bankruptcy of Sygnet or any of its subsidiaries or of Dobson
      Communications or any of its subsidiaries;
 
    - cross default to other material indebtedness, leases, contracts of Sygnet,
      its subsidiaries, or of Dobson Communications and its subsidiaries
      (excluding Logix Communications Enterprises, Inc.);
 
    - any material adverse change;
 
    - dissolution or termination of Sygnet or any of its subsidiaries or of
      Dobson Communications;
 
    - if Dobson Communications fails to maintain direct voting and economic
      control of Sygnet and its subsidiaries; and
 
    - if less than two-thirds of the existing executive management team of
      Dobson Communications continue to hold executive positions with Dobson
      Communications.
 
    Sygnet's obligations under the New Bank Facilities are guaranteed by its
subsidiary. Borrowings under the New Bank Facilities are secured by a first
perfected security interest in the stock of Sygnet's subsidiary and in all
assets of Sygnet and its present and future subsidiaries.
 
                                       65
<PAGE>
   
                            DESCRIPTION OF THE NOTES
    
 
    You can find the definitions of certain terms used in this description under
the subheading "Certain Definitions." In this description, "Dobson/Sygnet" refer
only to Dobson Sygnet Communications Company and not to any of its subsidiaries.
 
   
    We issued the notes under an Indenture, dated as of December 23, 1998, with
United States Trust Company of New York (the "Trustee"). We will provide a copy
of the Indenture upon request. The following summary of certain provisions of
the Indenture does not purport to be complete and is subject to, and is
qualified in its entirety by reference to, all the provisions of the Indenture,
including the definitions of certain terms therein and those terms made a part
thereof by the Trust Indenture Act of 1939, as amended.
    
 
BRIEF DESCRIPTION OF THE NOTES
 
THE NOTES
 
   
    The notes:
    
 
    - are general obligations,
 
    - bear interest at a rate of 12 1/4% per annum,
 
    - are unsecured (except to the extent described under "--Pledged Securities"
      below), unsubordinated obligations of the Company,
 
    - are initially limited to $200 million aggregate principal amount, and
 
    - will mature on December 15, 2008.
 
PRINCIPAL, MATURITY AND INTEREST
 
   
    We will issue notes with a maximum aggregate principal amount of $200
million. We will issue notes in denominations of $1,000 and integral multiples
of $1,000. The notes will mature on December 15, 2008.
    
 
   
    Interest on the notes will accrue at the rate of 12 1/4% per annum from the
date of original issuance or from the most recent interest payment date to which
interest has been paid or provided for, payable semiannually. Interest will be
payable on June 15 and December 15 of each year commencing June 15, 1999 to
holders of record at the close of business on the June 1 or December 1
immediately preceding the interest payment date.
    
 
   
    Principal, premium, if any, and interest on the notes will be payable, and
the notes may be exchanged or transferred, at our office or agency in the
Borough of Manhattan, The City of New York which initially is United States
Trust Company of New York, 114 W. 47th Street, New York, New York 10036,
Attention: Corporate Trust Department. We may pay interest by check mailed to
the holders at their addresses as they appear in the Security Register.
    
 
   
    We may, subject to the covenants described below and applicable law, issue
additional Notes under the Indenture. The notes offered hereby and any
additional Notes subsequently issued would be treated as a single class for all
purposes under the Indenture.
    
 
OPTIONAL REDEMPTION
 
   
    We may redeem the notes, at our option, in whole or in part, at any time or
from time to time, on or after December 15, 2003 and prior to maturity. We may
redeem the notes at the following Redemption Prices, expressed in percentages of
principal amount, plus accrued and unpaid interest, if any, to the Redemption
Date, subject to the right of holders of record on the relevant Regular Record
Date to receive
    
 
                                       66
<PAGE>
interest due on the relevant Interest Payment Date, if redeemed during the
12-month period commencing December 15 of the years set forth below:
 
<TABLE>
<CAPTION>
YEAR                                                                          REDEMPTION PRICE
- ----------------------------------------------------------------------------  ----------------
<S>                                                                           <C>
2003........................................................................        106.125%
2004........................................................................        103.063
2005........................................................................        101.531
2006 and thereafter.........................................................        100.000%
</TABLE>
 
   
    In addition, prior to December 15, 2001, we may on one or more occassions
redeem up to 35% of the original aggregate principal amount of the notes with
the proceeds of one or more equity offerings, at a redemption price of 112.25%
of the principal amount thereof, plus accrued and unpaid interest to the
redemption date. However, at least 65% of the aggregate principal amount of
notes originally issued must remain outstanding after each such redemption. Any
redemption under this provision must occur within 60 days following the closing
of any such equity offering.
    
 
SELECTION AND NOTICE OF REDEMPTION
 
   
    If we elect to redeem less than all of the notes in an optional redemption,
selection the notes to be redeemed will be selected by the Trustee in compliance
with the requirements of the principal national securities exchange, if any, on
which the notes are listed or, if the notes are not listed on a national
securities exchange, by lot or by such other method as the Trustee in its sole
discretion shall deem to be fair and appropriate. We cannot effect a partial
redemption of notes of $1,000 in principal amount or less. If any note is to be
redeemed in part only, our notice of redemption must state the portion of the
principal amount to be redeemed. A new note in principal amount equal to the
unredeemed portion thereof will be issued in the name of the holder thereof upon
cancellation of the original note. We will mail notices of redemption by
first-class mail at least 30 but not more than 90 days before the redemption
date to each holder of notes to be redeemed at the holders registered address.
    
 
REGISTRATION RIGHTS AND RESALE OF NOTES
 
    We entered into a Registration Rights Agreement (the "Registration Rights
Agreement") on December 23, 1998 under which we agreed at our expense, to:
 
   
    - file a registration statement (the "Exchange Offer Registration
      Statement") with the SEC with respect to a registered offer to exchange
      the notes for a new issue of our debt securities (the "new notes") to be
      issued under the Indenture in the same aggregate principal amount as and
      with terms that will be identical in all respects to the old notes (except
      that the new notes will not contain transfer restrictions),
    
 
    - use our best efforts to cause the Exchange Offer Registration Statement to
      be declared effective under the Securities Act, and
 
    - use our best efforts to consummate the exchange offer.
 
   
    Based on existing interpretations of the Securities Act by the staff of the
SEC set forth in several no-action letters to third parties, and subject to the
immediately following sentence, we believe that you may resell the new notes
issued in the exchange offer without further compliance with the registration
and prospectus delivery provisions of the Securities Act. However, any purchaser
of notes who is our "affiliate" or who intends to participate in the exchange
offer for the purpose of distributing the new notes,
    
 
    - will not be able to rely on the interpretations by the staff of the
      Commission set forth in the above-mentioned no-action letters,
 
   
    - will not be able to tender its notes in the exchange offer, and
    
 
                                       67
<PAGE>
    - must comply with the registration and prospectus delivery requirements of
      the Securities Act in connection with any sale or transfer of the Notes
      unless such sale or transfer is made pursuant to an exemption from such
      requirements.
 
    If you wish to exchange Old Notes for New Notes in the exchange offer, you
must represent that:
 
    - you are not our affiliate,
 
    - any New Notes to be received by you have been acquired in the ordinary
      course of your business, and
 
    - you have no arrangement with any person to participate in the distribution
      (within the meaning of the Securities Act) of the New Notes at the time of
      commencement of the exchange offer.
 
    In addition, in connection with any resales of New Notes, any broker-dealer
(an "Exchanging Dealer") who acquired the Notes for its own account as a result
of market-making activities or other trading activities must deliver a
prospectus meeting the requirements of the Securities Act. The SEC has taken the
position that Exchanging Dealers may fulfill their prospectus delivery
requirements with respect to the New Notes, other than a resale of an unsold
allotment form the original sale of the Notes, with the prospectus contained in
the exchange offer Registration Statement. Under the Registration Rights
Agreement, we are required to allow Exchanging Dealers to use the prospectus
contained in the Exchange Offer Registration Statement in connection with the
resale of such New Notes.
 
   
SHELF REGISTRATION
    
 
   
    We may be required to file a shelf registration statement with respect to
our outstanding notes if:
    
 
   
    - the Securities and Exchange Commission issues an interpretation that we
      are not permitted to effect the exchange offer,
    
 
   
    - we do not conclude the exchange offer by June 23, 1999,
    
 
   
    - an initial purchaser of the notes requests that we file a shelf
      registration statement with respect to notes held by the initial
      purchasers,
    
 
   
    - a holder of notes
    
 
   
        (a) is not eligible to participate in the exchange offer, or
    
 
   
        (b) has participated in the exchange offer but does not receive freely
    tradeable notes,
    
 
   
    - an initial purchaser has received new notes in the exchange offer or has
      otherwise been issued new notes in exchange for old notes constituting a
      portion of an unsold allotment, which new notes are not freely tradeable.
    
 
   
    If we are required to file a shelf registration statement we will, at our
expense:
    
 
    - file with the SEC a shelf registration statement (the "Shelf Registration
      Statement") covering resales of the Notes,
 
    - use our best efforts to cause the Shelf Registration Statement to be
      declared effective under the Securities Act, and
 
    - keep effective the Shelf Registration Statement until two years after the
      Closing Date or such shorter period of time that will terminate when all
      the Notes covered thereby have been sold pursuant thereto or in certain
      other circumstances. If we file a Shelf Registration Statement, we will:
 
       - provide to each holder covered by the Shelf Registration Statement
         copies of the prospectus that is a part of the Shelf Registration
         Statement,
 
                                       68
<PAGE>
       - notify each holder when the Shelf Registration Statement has become
         effective, and
 
   
       - take other actions required to permit unrestricted resales of the
         notes.
    
 
   
    A holder that sells notes pursuant to the Shelf Registration Statement
generally will be:
    
 
    - required to be named as a selling securityholder in the related prospectus
      and to deliver a prospectus to the purchaser,
 
    - subject to certain of the civil liability provisions under the Securities
      Act in connection with such sales, and
 
    - bound by the provisions of the Registration Rights Agreement that are
      applicable to such Holder (including certain indemnification obligations).
 
   
In addition, each holder will be required to deliver certain information to be
used in connection with the Shelf Registration Statement in order to have its
notes included in the Shelf Registration Statement.
    
 
    If either:
 
    - the Exchange Offer is not consummated on or prior to June 21, 1999 or
 
    - a Shelf Registration Statement is not declared effective when required,
 
   
we will pay liquidated damages ("Liquidated Damages") to each holder of notes in
an amount equal to .5% per annum of the principal amount thereof, payable on
June 15 and December 15. Upon the consummation of the Exchange Offer or the
effectiveness of the Shelf Registration Statement, as the case may be,
Liquidated Damages will cease to accrue.
    
 
    The summary of certain provisions of the Registration Rights Agreement is
not complete and is qualified in its entirety by reference to the Registration
Rights Agreement.
 
PLEDGED SECURITIES
 
   
    When we issued the old notes, we purchased the Pledged Securities for $67.7
million and pledged them to the Trustee for the benefit of the holders of the
notes. We believe that the amount of the Pledged Securities will be sufficient
to provide for payment in full of the first six scheduled interest payments due
on the notes. Immediately prior to an Interest Payment Date on the notes, we may
either deposit with the Trustee cash sufficient to pay the scheduled interest
scheduled or we may direct the Trustee to release from the Pledge Account
proceeds sufficient to pay interest then due on the notes. If we elect to
deposit cash with the Trustee, we may direct the Trustee to deliver cash or
Pledged Securities from the Pledge Account to us. If we do not pay interest on
the notes in a timely manner through the first six scheduled interest payment
dates will constitute an immediate Event of Default under the Indenture, with no
grace or cure period.
    
 
   
    In addition to securing the payment of interest, the Pledged Securities and
the Pledge Account also secure repayment of the principal amount of the notes to
the extent of such security. Once we make the first six scheduled interest
payments on the notes, all remaining Pledged Securities and any other amounts in
the Pledge Account will be released from the Pledge Account to us and thereafter
the notes will be unsecured.
    
 
RANKING
 
    The indebtedness evidenced by the Notes is:
 
    - unsubordinated Indebtedness of ours,
 
    - ranks equally in right of payment with all of our other unsubordinated
      indebtedness, and
 
                                       69
<PAGE>
    - ranks senior in right of payment to all of our subordinated indebtedness.
 
    As of December 31, 1998, we had on an unconsolidated basis no indebtedness
other than the Notes. We are a holding company and the Notes are effectively
subordinated to all existing and future liabilities of our subsidiaries. As of
December 31, 1998, our subsidiaries had $431.3 million of liabilities, excluding
deferred taxes including $407.0 million of indebtedness, all of which is
effectively senior to the Notes.
 
CERTAIN DEFINITIONS
 
    Set forth below is a summary of certain of the defined terms used in the
covenants and other provisions of the Indenture. Reference is made to the
Indenture for the definition of all terms as well as any other capitalized term
used herein for which no definition is provided.
 
    "ACQUIRED INDEBTEDNESS" means Indebtedness of a Person existing at the time
such Person becomes a Restricted Subsidiary or which is assumed in connection
with an Asset Acquisition by a Restricted Subsidiary and not Incurred in
connection with, or in anticipation of, such Person becoming a Restricted
Subsidiary or such Asset Acquisition. The term "Acquired Indebtedness" does not
include Indebtedness of a Person which is redeemed, defeased, retired or
otherwise repaid at the time of or immediately upon consummation of the
transactions by which such Person becomes a Restricted Subsidiary or such Asset
Acquisition.
 
    "ADJUSTED CONSOLIDATED NET INCOME" means, for any period, our aggregate net
income (or loss), including that of our Restricted Subsidiaries, for such period
determined in conformity with GAAP. In computing Adjusted Consolidated Net
Income, the following items should be excluded without duplication:
 
       (A) the net income of any Person (other than net income attributable to a
    Restricted Subsidiary) in which any Person (other than us or any of our
    Restricted Subsidiaries) has a joint interest and the net income of any
    Unrestricted Subsidiary, except to the extent of the amount of dividends or
    other distributions actually paid to us or any of our Restricted
    Subsidiaries by such other Person or such Unrestricted Subsidiary during
    such period;
 
        (B) solely for the purposes of calculating the amount of Restricted
    Payments that may be made pursuant to the "Limitation on Restricted
    Payments" covenant described below (and in such case, except to the extent
    includable pursuant to clause (A) above), the net income (or loss) of any
    Person accrued prior to the date it becomes a Restricted Subsidiary or is
    merged into or consolidated with us or any of our Restricted Subsidiaries or
    all or substantially all of the property and assets of such Person are
    acquired by Dobson/Sygnet or any of its Restricted Subsidiaries;
 
        (C) the net income of any Restricted Subsidiary to the extent that the
    declaration or payment of dividends or similar distributions by such
    Restricted Subsidiary of such net income is not at the time permitted by the
    operation of the terms of its charter or any agreement, instrument,
    judgment, decree, order, statute, rule or governmental regulation applicable
    to such Restricted Subsidiary;
 
       (D) any gains or losses, determined on an after-tax basis, attributable
    to Asset Sales;
 
        (E) except for purposes of calculating the amount of Restricted Payments
    that may be made pursuant to the "Limitation on Restricted Payments"
    covenant described below, any amount paid or accrued as dividends on our
    Preferred Stock or that of any Restricted Subsidiary owned by Persons other
    than us and any of our Restricted Subsidiaries; and
 
        (F) all extraordinary gains and extraordinary losses, net of tax.
 
    "ADJUSTED CONSOLIDATED NET TANGIBLE ASSETS" means the total amount of our
assets and those of our Restricted Subsidiaries (less applicable depreciation,
amortization and other valuation reserves), except to
 
                                       70
<PAGE>
the extent resulting from write-ups of capital assets (excluding write-ups in
connection with accounting for acquisitions in conformity with GAAP), after
deducting therefrom:
 
    - all of our current liabilities and those of our Restricted Subsidiaries
      (excluding intercompany items), and
 
    - all goodwill, trade names, trademarks, patents, unamortized debt discount
      and expense and other like intangibles (other than Federal Communications
      Commission license acquisition costs), all as set forth on our most recent
      quarterly or annual consolidated balance sheet and, prepared in conformity
      with GAAP and filed with the SEC.
 
    "AFFILIATE" means, as applied to any Person, any other Person directly or
indirectly controlling, controlled by, or under direct or indirect common
control with, such Person. For purposes of this definition, "control"
(including, with correlative meanings, the terms "controlling," "controlled by"
and "under common control with"), as applied to any Person, means the
possession, directly or indirectly, of the power to direct or cause the
direction of the management and policies of such Person, whether through the
ownership of voting securities, by contract or otherwise.
 
    "ASSET ACQUISITION" means:
 
    - an investment by us or any of our Restricted Subsidiaries in any other
      Person pursuant to which such Person shall become a Restricted Subsidiary
      or shall be merged into or consolidated with us or any of our Restricted
      Subsidiaries; on the condition that such Person's primary business is
      related, ancillary or complementary to our businesses and those of our
      Restricted Subsidiaries on the date of such investment, or
 
    - an acquisition by us or any of our Restricted Subsidiaries of the property
      and assets of any Person other than us or any of our Restricted
      Subsidiaries that constitute substantially all of a division or line of
      business of such Person; but only if the property and assets acquired are
      related, ancillary or complementary to our businesses and those of our
      Restricted Subsidiaries on the date of such acquisition.
 
    "ASSET DISPOSITION" means the sale or other disposition by us or by any of
our Restricted Subsidiaries other than to us or another Restricted Subsidiary
of:
 
    - all or substantially all of the Capital Stock of any Restricted
      Subsidiary, or
 
    - all or substantially all of the assets that constitute a division or line
      of our business or of any of our Restricted Subsidiaries.
 
    "ASSET SALE" means any sale, transfer or other disposition (including by way
of merger, consolidation or sale-leaseback transaction) in one transaction or a
series of related transactions by us or by any of our Restricted Subsidiaries to
any Person other than us or any of our Restricted Subsidiaries of:
 
    - all or any of the Capital Stock of any Restricted Subsidiary,
 
    - all or substantially all of the property and assets of an operating unit
      or business of ours or of any of our Restricted Subsidiaries, or
 
    - any of our other property and assets or any of our Restricted Subsidiaries
      outside the ordinary course of our business or such Restricted Subsidiary
      and, in each case, that is not governed by the provisions of the Indenture
      applicable to mergers, consolidations and sales of all or substantially
      all of our assets.
 
    The term "Asset Sale" does not include
 
    - sales or other dispositions of inventory, receivables and other current
      assets,
 
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    - sales, transfers or other dispositions of assets constituting a Restricted
      Payment permitted to be made under the "Limitation on Restricted Payments"
      covenant,
 
    - sales or other dispositions of assets for consideration at least equal to
      the fair market value of the assets sold or disposed of, to the extent
      that the consideration received consists of property or assets (other than
      current assets) of a nature or type or that are used in a business (or a
      company having property or assets of a nature or type, or engaged in a
      business) similar or related to the nature or type of the property and
      assets of, or business of, ours and our Restricted Subsidiaries existing
      on the date of such sale or other disposition,
 
    - sales, transfers or other dispositions of assets with a fair market value
      not in excess of $5.0 million in any transaction or series of related
      transactions, or
 
    - the Tower Sale.
 
    "AVERAGE LIFE" means, at any date of determination with respect to any debt
security, the quotient obtained by dividing
 
    (A) the sum of the product of
 
    - the number of years from such date of determination to the dates of each
      successive scheduled principal payment of such debt security, and
 
    - the amount of such principal payment by
 
    (B) the sum of all such principal payments.
 
    "BANK AGENT" means NationsBank, N.A., or its successors as agent for the
lenders under the New Credit Agreement.
 
    "CAPITAL STOCK" means, with respect to any Person, any and all shares,
interests, participations or other equivalents (however designated, whether
voting or non-voting) in equity of such Person, whether now outstanding or
issued after the Closing Date, including, without limitation, all Common Stock
and Preferred Stock.
 
    "CAPITALIZED LEASE" means, as applied to any Person, any lease of any
property (whether real, personal or mixed) of which the discounted present value
of the rental obligations of such Person as lessee, in conformity with GAAP, is
required to be capitalized on the balance sheet of such Person.
 
    "CAPITALIZED LEASE OBLIGATIONS" means the discounted present value of the
rental obligations under a Capitalized Lease.
 
    "CHANGE OF CONTROL" means such time as:
 
    (A) prior to the occurrence of a Public Market, a "person" or "group",
within the meaning of Section 13(d) of 14(d)(2) of the Exchange Act, becomes the
ultimate "beneficial owner", as defined in Rule 13d-3 under the Exchange Act, of
Voting Stock representing a greater percentage of the total voting power of the
Voting Stock of
 
    - Dobson Communications, on a fully diluted basis, than is beneficially
      owned by Everett R. Dobson and his Affiliates on such date, or
 
    - us, on a fully diluted basis, than is beneficially owned by the Existing
      Stockholders on such date.
 
    (B) After the occurrence of a Public Market, a "person" or "group", within
the meaning of Section 13(d) of 14(d)(2) of the Exchange Act, becomes the
ultimate "beneficial owner", as defined in Rule 13d-3 under the Exchange Act, of
more than 35% of the total voting power of our Voting Stock on a fully diluted
basis and such ownership represents a greater percentage of the total voting
power of our Voting Stock, on a fully diluted basis, than is held by the
Existing Stockholders on such date.
 
                                       72
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    (C) Individuals who on December 23, 1998 constituted the Board of Directors,
together with any new directors
 
    - whose election by the Board of Directors or whose nomination for election
      by our stockholders was approved by a vote of at least a majority of the
      members of the Board of Directors then in office who either were members
      of the Board of Directors on December 23, 1998 or whose election or
      nomination for election was previously so approved, or
 
    - so long as no "person" or "group", within the meaning of Section 13(d) or
      14(d)(2) under the Exchange act, becomes the ultimate "beneficial owner",
      as defined in Rule 13d-3 under the Exchange Act, of Voting Stock
      representing a greater percentage of the total voting power of the Voting
      Stock of Dobson Communications, on a fully diluted basis, than is
      beneficially owned by Everett R. Dobson and his Affiliates on such date,
      whose election was approved by Dobson Communications, cease for any reason
      to constitute a majority of the members of the Board of Directors then in
      office.
 
    "CLOSING DATE" means the date on which the Notes are originally issued under
the Indenture.
 
    "COMMON STOCK" means, with respect to any Person, any and all shares,
interests, participations or other equivalents (however designated, whether
voting or non-voting) of such Person's equity, other than Preferred Stock of
such Person, whether now outstanding or issued after the Closing Date, including
without limitation, all series and classes of such common stock.
 
    "CONSOLIDATED EBITDA" means, for any period, Adjusted Consolidated Net
Income for such period plus, to the extent such amount was deducted in
calculating Adjusted Consolidated Net Income
 
    - Consolidated Interest Expense,
 
    - income taxes, (other than income taxes (either positive or negative)
      attributable to extraordinary and non-recurring gains or losses or sales
      of assets),
 
    - depreciation expense,
 
    - amortization expense, and
 
    - all other non-cash items reducing Adjusted Consolidated Net Income, other
      than items that will require cash payments and for which an accrual or
      reserve is, or is required by GAAP to be, made, less all non-cash items
      increasing Adjusted Consolidated Net Income, all as determined on a
      consolidated basis for the Company and its Restricted Subsidiaries in
      conformity with GAAP. If any Restricted Subsidiary is not a Wholly Owned
      Restricted Subsidiary, Consolidated EBITDA shall be reduced to the extent
      not otherwise reduced in accordance with GAAP by an amount equal to
 
    - the amount of the Adjusted Consolidated Net Income attributable to such
      Restricted Subsidiary multiplied by
 
    - the percentage ownership interest in the income of such Restricted
      Subsidiary not owned on the last day of such period by us or any of our
      Restricted Subsidiaries.
 
    "CONSOLIDATED INTEREST EXPENSE" means, for any period, the aggregate amount
of interest in respect of Indebtedness including, without limitation,
 
    (A) amortization of original issue discount on any Indebtedness and the
interest portion of any deferred payment obligation, calculated in accordance
with the effective interest method of accounting;
 
    (B) all commissions, discounts and other fees and charges owed with respect
to letters of credit and bankers' acceptance financing;
 
    (C) the net costs associated with Interest Rate Agreements; and
 
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    (D) Indebtedness that is Guaranteed or secured by the Company or any of its
Restricted Subsidiaries and all but the principal component of rentals in
respect of Capitalized Lease Obligations paid, accrued or scheduled to be paid
or to be accrued by the Company and its Restricted Subsidiaries during such
period. However,
 
    - any amount of such interest of any Restricted Subsidiary if the net income
      of such Restricted Subsidiary is excluded in the calculation of Adjusted
      Consolidated Net Income pursuant to clause (C) of the definition thereof,
      but only in the same proportion as the net income of such Restricted
      Subsidiary is excluded from the calculation of Adjusted Consolidated Net
      Income pursuant to clause (C) of the definition thereof, and
 
    - any premiums, fees and expenses and any amortization thereof payable in
      connection with the offering of the Notes, all as determined on a
      consolidated basis without taking into account Unrestricted Subsidiaries
      in conformity with GAAP.
 
    "CONSOLIDATED LEVERAGE RATIO" means, on any Transaction Date, the ratio of
 
    - the aggregate amount of our Indebtedness and that of our Restricted
      Subsidiaries on a consolidated basis outstanding on such Transaction Date,
      to
 
    - the aggregate amount of Consolidated EBITDA for the then most recent four
      fiscal quarters for which our financial statements have been filed with
      the SEC (such four fiscal quarter period being the "Four Quarter Period").
 
In making the foregoing calculation:
 
    (A) pro forma effect shall be given to any Indebtedness that is to be
Incurred or repaid on the Transaction Date as if such Incurrence or repayment
had occurred on the first day of such Four Quarter Period;
 
    (B) pro forma effect shall be given to Asset Dispositions and Asset
Acquisitions (including giving pro forma effect to the application of proceeds
of any Asset Disposition) that occur during the period beginning on the first
day of the Four Quarter Period and ending on the Transaction Date (the
"Reference Period") as if they had occurred and such proceeds had been applied
on the first day of such Reference Period; and
 
    (C) pro forma effect shall be given to asset dispositions and asset
acquisitions (including giving pro forma effect to the application of proceeds
of any asset disposition) that have been made by any Person that has become a
Restricted Subsidiary or has been merged with or into us or any Restricted
Subsidiary during such Reference Period and that would have constituted Asset
Dispositions or Asset Acquisitions had such transactions occurred when such
Person was a Restricted Subsidiary as if such asset dispositions or asset
acquisitions were Asset Dispositions or Asset Acquisitions that occurred on the
first day of such Reference Period.
 
    To the extent that pro forma effect be given to an Asset Acquisition or
Asset Disposition, such pro forma calculation shall be based upon the four full
fiscal quarters immediately preceding the Transaction Date of the Person, or
division or line of business of the Person, that is acquired or disposed of for
which financial information is available.
 
    "CONSOLIDATED NET WORTH" means, at any date of determination, stockholders'
equity as set forth on our most recently available quarterly or annual
consolidated balance sheet, which shall be as of a date not more than 90 days
prior to the date of such computation, and which shall not take into account
Unrestricted Subsidiaries, less any amounts attributable to Disqualified Stock
or any equity security convertible into or exchangeable for Indebtedness, the
cost of treasury stock and the principal amount of any promissory notes
receivable from the sale of our Capital Stock or that of any of our Restricted
Subsidiaries, each item to be determined in conformity with GAAP (excluding the
effects of foreign
 
                                       74
<PAGE>
currency exchange adjustments under Financial Accounting Standards Board
Statement of Financial Accounting Standards No. 52).
 
    "CURRENCY AGREEMENT" means any foreign exchange contract, currency swap
agreement or other similar agreement or arrangement.
 
    "DEFAULT" means any event that is, or after notice or passage of time or
both would be, an Event of Default.
 
    "DISQUALIFIED STOCK" means any class or series of Capital Stock of any
Person that by its terms or otherwise is
 
    (A) required to be redeemed prior to the Stated Maturity of the Notes,
 
    (B) redeemable at the option of the holder of such class or series of
Capital Stock at any time prior to the Stated Maturity of the Notes or
 
    (C) convertible into or exchangeable for Capital Stock referred to in clause
(a) or (b) above or Indebtedness having a scheduled maturity prior to the Stated
Maturity of the Notes.
 
    Any Capital Stock that would not constitute Disqualified Stock but for
provisions thereof giving holders thereof the right to require such Person to
repurchase or redeem such Capital Stock upon the occurrence of an "asset sale"
or "change of control" occurring prior to the Stated Maturity of the Notes shall
not constitute Disqualified Stock if,
 
    - the "asset sale" or "change of control" provisions applicable to such
      Capital Stock are no more favorable to the holders of such Capital Stock
      than the provisions contained in "Limitation on Asset Sales" and
      "Repurchase of Notes upon a Change of Control" covenants described below,
      and
 
    - such Capital Stock specifically provides that such Person will not
      repurchase or redeem any such stock pursuant to such provision prior to
      the Company's repurchase of such Notes as are required to be repurchased
      pursuant to the "Limitation on Asset Sales" and "Repurchase of Notes upon
      a Change of Control" covenants described below.
 
    "DOBSON COMMUNICATIONS" means Dobson Communications Corporation, an Oklahoma
corporation.
 
    "EXISTING STOCKHOLDERS" means
 
    - Everett R. Dobson and his Affiliates, and
 
    - Dobson Communications, so long as no "person" or "group" (within the
      meaning of Section 13(d) or 14(d)(2) under the Exchange Act) becomes the
      ultimate "beneficial owner" (as defined in Rule 13d-3 under the Exchange
      Act) of more than 35% of the total voting power of the Voting Stock of
      Dobson Communications on a fully diluted basis and such ownership
      represents a greater percentage of the total voting power of the Voting
      Stock of Dobson Communications, on a fully diluted basis, than is held by
      Everett R. Dobson and his affiliates on such date.
 
    "FAIR MARKET VALUE" means the price that would be paid in an arm's-length
transaction between an informed and willing seller under no compulsion to sell
and an informed and willing buyer under no compulsion to buy, as determined in
good faith by the Board of Directors, whose determination shall be conclusive if
evidenced by a Board Resolution.
 
    "GAAP" means generally accepted accounting principles in the United States
of America as in effect as of the Closing Date, including, without limitation,
those set forth in the opinions and pronouncements of the Accounting Principles
Board of the American Institute of Certified Public Accountants and statements
and pronouncements of the Financial Accounting Standards Board or in such other
statements by such other entity as approved by a significant segment of the
accounting profession. All ratios and computations contained or referred to in
the Indenture shall be computed in conformity with GAAP
 
                                       75
<PAGE>
applied on a consistent basis, except that calculations made for purposes of
determining compliance with the terms of the covenants and with other provisions
of the Indenture shall be made without giving effect to
 
    - the amortization of any expenses incurred in connection with the offering
      of the Notes and
 
    - except as otherwise provided, the amortization of any amounts required or
      permitted by Accounting Principles Board Opinion Nos. 16 and 17.
 
    "GOVERNMENT SECURITIES" means direct obligations of, obligations fully
guaranteed by, or participations in pools consisting solely of obligations of or
obligations guaranteed by, the United States of America for the payment of which
guarantee or obligations the full faith and credit of the United States of
America is pledged and which are not callable or redeemable at the option of the
issuer thereof.
 
    "GUARANTEE" means any obligation, contingent or otherwise, of any Person
directly or indirectly guaranteeing any Indebtedness of any other Person and,
without limiting the generality of the foregoing, any obligation, direct or
indirect, contingent or otherwise, of such Person
 
    - to purchase or pay (or advance or supply funds for the purchase or payment
      of) such Indebtedness of such other Person (whether arising by virtue of
      partnership arrangements, or by agreements to keep-well, to purchase
      assets, goods, securities or services (unless such purchase arrangements
      are on arm's-length terms and are entered into in the ordinary course of
      business), to take-or-pay, or to maintain financial statement conditions
      or otherwise) or
 
    - entered into for purposes of assuring in any other manner the obligee of
      such Indebtedness of the payment thereof or to protect such obligee
      against loss in respect thereof (in whole or in part).
 
    The term "Guarantee" shall not include endorsements for collection or
deposit in the ordinary course of business. The term "Guarantee" used as a verb
has a corresponding meaning.
 
    "INCUR" means, with respect to any Indebtedness, to incur, create, issue,
assume, Guarantee or otherwise become liable for or with respect to, or become
responsible for, the payment of, contingently or otherwise, such Indebtedness,
including an "Incurrence" of Indebtedness by reason of a Person becoming a
Restricted Subsidiary; on the condition that neither the accrual of interest nor
the accretion of original issue discount shall be considered an Incurrence of
Indebtedness.
 
    "INDEBTEDNESS" means, with respect to any Person at any date of
determination (without duplication):
 
       (A) all indebtedness of such Person for borrowed money,
 
        (B) all obligations of such Person evidenced by bonds, debentures, notes
    or other similar instruments,
 
        (C) all obligations of such Person in respect of letters of credit or
    other similar instruments (including reimbursement obligations with respect
    thereto, but excluding obligations with respect to letters of credit
    (including trade letters of credit) securing obligations (other than
    obligations described in (A) or (B) above or (E), (F) or (G) below) entered
    into in the ordinary course of business of such Person to the extent such
    letters of credit are not drawn upon or, if drawn upon, to the extent such
    drawing is reimbursed no later than the third Business Day following receipt
    by such Person of a demand for reimbursement),
 
       (D) all obligations of such Person to pay the deferred and unpaid
    purchase price of property or services, which purchase price is due more
    than six months after the date of placing such property in service or taking
    delivery and title thereto or the completion of such services, except Trade
    Payables,
 
        (E) all obligations of such Person as lessee under Capitalized Leases,
 
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        (F) all Indebtedness of other Persons secured by a Lien on any asset of
    such Person, whether or not such Indebtedness is assumed by such Person; on
    the condition that the amount of such Indebtedness shall be the lesser of
 
       - the fair market value of such asset at such date of determination and
 
       - the amount of such Indebtedness,
 
       (G) all Indebtedness of other Persons Guaranteed by such Person to the
    extent such Indebtedness is Guaranteed by such Person and
 
       (H) to the extent not otherwise included in this definition, obligations
    under Currency Agreements and Interest Rate Agreements.
 
    The amount of Indebtedness of any Person at any date shall be the
outstanding balance at such date (or in the case of a revolving credit or other
similar facility, the total amount of funds outstanding and/or available on the
date of determination) of all unconditional obligations as described above and,
with respect to contingent obligations, the maximum liability upon the
occurrence of the contingency giving rise to the obligation, but only if:
 
    - the amount outstanding at any time of any Indebtedness issued with
      original issue discount is the face amount of such Indebtedness less the
      unamortized portion of the original issue discount of such Indebtedness at
      such time as determined in conformity with GAAP,
 
    - money borrowed at the time of the Incurrence of any Indebtedness in order
      to pre-fund the payment of interest on such Indebtedness shall be deemed
      not to be "Indebtedness" so long as such money is held to secure the
      payment of such interest, and
 
    - Indebtedness shall not include any liability for federal, state, local or
      other taxes.
 
    "INTEREST RATE AGREEMENT" means any interest rate protection agreement,
interest rate future agreement, interest rate option agreement, interest rate
swap agreement, interest rate cap agreement, interest rate collar agreement,
interest rate hedge agreement, option or future contract or other similar
agreement or arrangement.
 
    "INVESTMENT" in any Person means any direct or indirect advance, loan or
other extension of credit including, without limitation, by way of Guarantee or
similar arrangement, but excluding advances to customers in the ordinary course
of business that are, in conformity with GAAP, recorded as accounts receivable
on our balance sheet or that of our Restricted Subsidiaries, or a capital
contribution to (by means of any transfer of cash or other property to others or
any payment for property or services for the account or use of others), or any
purchase or acquisition of Capital Stock, bonds, notes, debentures or other
similar instruments issued by, such Person and shall include
 
    - the designation of a Restricted Subsidiary as an Unrestricted Subsidiary
      and
 
    - the fair market value of the Capital Stock (or any other Investment), held
      by the Company or any of its Restricted Subsidiaries, of (or in) any
      Person that has ceased to be a Restricted Subsidiary, including without
      limitation, by reason of any transaction permitted by clause (c) of the
      "Limitation on the Issuance and Sale of Capital Stock of Restricted
      Subsidiaries" covenant.
 
    For purposes of the definition of "Unrestricted Subsidiary" and the
"Limitation on Restricted Payments" covenant described below,
 
                                       77
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    (A) "Investment" shall include the fair market value of the assets (net of
liabilities (other than liabilities to us or any of our Subsidiaries)) of any
Restricted Subsidiary at the time that such Restricted Subsidiary is designated
an Unrestricted Subsidiary,
 
    (B) the fair market value of the assets, net of liabilities (other than
liabilities to us or any of our Subsidiaries) of any Unrestricted Subsidiary at
the time that such Unrestricted Subsidiary is designated a Restricted Subsidiary
shall be considered a reduction in outstanding Investments, and
 
    (C) any property transferred to or from an Unrestricted Subsidiary shall be
valued at its fair market value at the time of such transfer.
 
    "LIEN" means any mortgage, pledge, security interest, encumbrance, lien or
charge of any kind (including, without limitation, any conditional sale or other
title retention agreement or lease in the nature thereof or any agreement to
give any security interest).
 
    "MOODY'S" means Moody's Investors Service, Inc. and its successors.
 
    "NET CASH PROCEEDS" means,
 
    (A) with respect to any Asset Sale, the proceeds of such Asset Sale in the
form of cash or cash equivalents, including payments in respect of deferred
payment obligations (to the extent corresponding to the principal, but not
interest, component thereof) when received in the form of cash or cash
equivalents (except to the extent such obligations are financed or sold with
recourse to the Company or any Restricted Subsidiary) and proceeds from the
conversion of other property received when converted to cash or cash
equivalents, net of
 
    (1) brokerage commissions and other fees and expenses (including fees and
expenses of counsel and investment bankers) related to such Asset Sale,
 
    (2) provisions for all taxes (whether or not such taxes will actually be
paid or are payable) as a result of such Asset Sale without regard to the
consolidated results of operations of the Company and its Restricted
Subsidiaries, taken as a whole,
 
    (3) payments made to repay Indebtedness or any other obligation outstanding
at the time of such Asset Sale that either
 
    - is secured by a Lien on the property or assets sold or
 
    - is required to be paid as a result of such sale and
 
    (4) appropriate amounts to be provided by us or any Restricted Subsidiary as
a reserve against any liabilities associated with such Asset Sale, including,
without limitation, pension and other post-employment benefit liabilities,
liabilities related to environmental matters and liabilities under any
indemnification obligations associated with such Asset Sale, all as determined
in conformity with GAAP, and
 
    (B) with respect to any issuance or sale of Capital Stock, the proceeds of
such issuance or sale in the form of cash or cash equivalents, including
payments in respect of deferred payment obligations (to the extent corresponding
to the principal, but not interest, component thereof) when received in the form
of cash or cash equivalents, except to the extent such obligations are financed
or sold with recourse to us or any Restricted Subsidiary and proceeds from the
conversion of other property received when converted to cash or cash
equivalents, net of attorney's fees, accountants' fees, underwriters' or
placement agents' fees, discounts or commissions and brokerage, consultant and
other fees incurred in connection with such issuance or sale and net of taxes
paid or payable as a result thereof.
 
    "NEW CREDIT AGREEMENT" means the credit agreement dated as of the Closing
Date between Dobson/ Sygnet Operating Company and NationsBank, N.A. and certain
other financial institutions, together with any agreements, instruments and
documents executed or delivered pursuant to or in connection with such credit
agreement (including without limitation any Guarantees and security documents),
in each case as such credit agreement or such agreements, instruments or
documents may be amended (including any
 
                                       78
<PAGE>
amendment and restatement thereof), supplemented, extended, renewed, replaced or
otherwise modified from time to time (including any agreement extending the
maturity of, refinancing or otherwise restructuring (including the inclusion of
additional borrowers thereunder that are subsidiaries of the Company) all or a
portion of the Indebtedness under such agreement or any successor agreement).
 
    "OFFER TO PURCHASE" means our offer to purchase Notes from the Holders
commenced by mailing a notice to the Trustee and each Holder stating:
 
       (A) the covenant pursuant to which the offer is being made and that all
    Notes validly tendered will be accepted for payment on a pro rata basis;
 
        (B) the purchase price and the date of purchase, which shall be a
    Business Day no earlier than 30 days nor later than 60 days from the date
    such notice is mailed (the "Payment Date");
 
        (C) that any Note not tendered will continue to accrue interest pursuant
    to its terms;
 
       (D) that, unless we default in the payment of the purchase price, any
    Note accepted for payment pursuant to the Offer to Purchase shall cease to
    accrue interest on and after the Payment Date;
 
        (E) that Holders electing to have a Note purchased pursuant to the Offer
    to Purchase will be required to surrender the Note, together with the form
    entitled "Option of the Holder to Elect Purchase" on the reverse side of the
    Note completed, to the Paying Agent at the address specified in the notice
    prior to the close of business on the Business Day immediately preceding the
    Payment Date;
 
        (F) that Holders will be entitled to withdraw their election if the
    Paying Agent receives, not later than the close of business on the third
    Business Day immediately preceding the Payment Date, a telegram, facsimile
    transmission or letter setting forth the name of such Holder, the principal
    amount of Notes delivered for purchase and a statement that such Holder is
    withdrawing his election to have such Notes purchased; and
 
       (G) that Holders whose Notes are being purchased only in part will be
    issued new Notes equal in principal amount to the unpurchased portion of the
    Notes surrendered; but only if that each Note purchased and each new Note
    issued shall be in a principal amount of $1,000 or integral multiples
    thereof.
 
    On the Payment Date, we shall
 
    - accept for payment on a pro rata basis Notes or portions thereof validly
      tendered pursuant to an Offer to Purchase;
 
    - deposit with the Paying Agent money sufficient to pay the purchase price
      of all Notes or portions thereof so accepted; and
 
    - deliver, or cause to be delivered, to the Trustee all Notes or portions
      thereof so accepted together with an Officers' Certificate specifying the
      Notes or portions thereof accepted for payment by us.
 
    The Paying Agent shall promptly mail to the Holders of Notes so accepted
payment in an amount equal to the purchase price, and the Trustee shall promptly
authenticate and mail to such Holders a new Note equal in principal amount to
any unpurchased portion of the Note surrendered; PROVIDED that each Note
purchased and each new Note issued shall be in a principal amount of $1,000 or
integral multiples thereof. We will publicly announce the results of an Offer to
Purchase as soon as practicable after the Payment Date. The Trustee shall act as
the Paying Agent for an Offer to Purchase. We will comply with Rule 14e-1 under
the Exchange Act and any other securities laws and regulations thereunder to the
extent such laws and regulations are applicable, in the event that we are
required to repurchase Notes pursuant to an Offer to Purchase.
 
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<PAGE>
    "PERMITTED INVESTMENT" means:
 
       (A) an Investment in us or a Restricted Subsidiary or a Person which
    will, upon the making of such Investment, become a Restricted Subsidiary or
    be merged or consolidated with or into or transfer or convey all or
    substantially all its assets to, us or a Restricted Subsidiary; but only if
    that person's primary business is related, ancillary or complementary to our
    businesses and those of our Restricted Subsidiaries on the date of such
    Investment;
 
        (B) Temporary Cash Investments;
 
        (C) payroll, travel and similar advances to cover matters that are
    expected at the time of such advances ultimately to be treated as expenses
    in accordance with GAAP;
 
       (D) stock, obligations or securities received in satisfaction of
    judgments;
 
        (E) Investments in prepaid expenses, negotiable instruments held for
    collection and lease, utility and worker's compensation, performance and
    other similar deposits;
 
        (F) Interest Rate Agreements and Currency Agreements designed solely to
    protect the Company or its Restricted Subsidiaries against fluctuations in
    interest rates or foreign currency exchange rates; and
 
       (G) loans or advances to our officers or employees or to those of any
    Restricted Subsidiary that do not in the aggregate exceed $3 million at any
    time outstanding.
 
    "Permitted Liens" means:
 
       (A) Liens for taxes, assessments, governmental charges or claims that are
    being contested in good faith by appropriate legal proceedings promptly
    instituted and diligently conducted and for which a reserve or other
    appropriate provision, if any, as shall be required in conformity with GAAP
    shall have been made;
 
        (B) statutory and common law Liens of landlords and carriers,
    warehousemen, mechanics, suppliers, materialmen, repairmen or other similar
    Liens arising in the ordinary course of business and with respect to amounts
    not yet delinquent or being contested in good faith by appropriate legal
    proceedings promptly instituted and diligently conducted and for which a
    reserve or other appropriate provision, if any, as shall be required in
    conformity with GAAP shall have been made;
 
        (C) Liens incurred or deposits made in the ordinary course of business
    in connection with workers' compensation, unemployment insurance and other
    types of social security;
 
       (D) Liens incurred or deposits made, including deposits made to the FCC,
    to secure the performance of tenders, bids, leases, statutory or regulatory
    obligations, bankers' acceptances, surety and appeal bonds, government
    contracts, performance and return-of-money bonds and other obligations of a
    similar nature incurred in the ordinary course of business, exclusive of
    obligations for the payment of borrowed money;
 
        (E) easements, rights-of-way, municipal and zoning ordinances and
    similar charges, encumbrances, title defects or other irregularities that do
    not materially interfere with the ordinary course of our business or that of
    any of our Restricted Subsidiaries;
 
        (F) Liens, including extensions and renewals thereof, upon real or
    personal property acquired after the Closing Date; but only if that
 
            (1) such Lien is created solely for the purpose of securing
       Indebtedness Incurred, in accordance with the "Limitation on
       Indebtedness" covenant described below,
 
           - to finance the cost (including the cost of design, development,
             improvement, construction, installation or integration) of the item
             of property or assets subject thereto and such Lien
 
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             is created prior to, at the time of or within six months after the
             later of the acquisition, the completion of construction or the
             commencement of full operation of such property or
 
           - to refinance any Indebtedness previously so secured,
 
            (2) the principal amount of the Indebtedness secured by such Lien
       does not exceed 100% of such cost and
 
            (3) any such Lien shall not extend to or cover any property or
       assets other than such item of property or assets and any improvements on
       such item;
 
       (G) leases or subleases granted to others that do not materially
    interfere with the ordinary course of our business and that of our
    Restricted Subsidiaries, taken as a whole;
 
       (H) Liens encumbering property or assets under construction arising from
    progress or partial payments by a customer of ours or a customer of one of
    our Restricted Subsidiaries relating to such property or assets;
 
        (I) any interest or title of a lessor in the property subject to any
    Capitalized Lease or operating lease;
 
        (J) Liens arising from filing Uniform Commercial Code financing
    statements regarding leases;
 
       (K) Liens on property of, or on shares of Capital Stock or Indebtedness
    of, any Person existing at the time such Person becomes, or becomes a part
    of, any Restricted Subsidiary; but only if such Liens do not extend to or
    cover any of our property or assets or of any Restricted Subsidiary other
    than the property or assets acquired;
 
        (L) Liens in favor of us or any Restricted Subsidiary;
 
       (M) Liens arising from the rendering of a final judgment or order against
    us or any Restricted Subsidiary that does not give rise to an Event of
    Default;
 
       (N) Liens securing reimbursement obligations with respect to letters of
    credit that encumber documents and other property relating to such letters
    of credit and the products and proceeds thereof;
 
       (O) Liens in favor of customs and revenue authorities arising as a matter
    of law to secure payment of customs duties in connection with the
    importation of goods;
 
        (P) Liens encumbering customary initial deposits and margin deposits,
    and other Liens that are either within the general parameters customary in
    the industry and incurred in the ordinary course of business, in each case,
    securing Indebtedness under Interest Rate Agreements and Currency Agreements
    and forward contracts, options, future contracts, futures options or similar
    agreements or arrangements designed solely to protect us or any of our
    Restricted Subsidiaries from fluctuations in interest rates, currencies or
    the price of commodities;
 
       (Q) Liens arising out of conditional sale, title retention, consignment
    or similar arrangements for the sale of goods entered into by us or any of
    our Restricted Subsidiaries in the ordinary course of business in accordance
    with our past practices of and those of our Restricted Subsidiaries prior to
    the Closing Date;
 
       (R) Liens that secure Indebtedness with an aggregate principal amount not
    in excess of $5 million at any time outstanding; and
 
        (S) Liens on or sales of receivables.
 
    "PLEDGE ACCOUNT" means an account established with the Trustee pursuant to
the terms of the Pledge Agreement for the deposit of the Pledged Securities to
be purchased by us with the net proceeds from the Notes.
 
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    "PLEDGE AGREEMENT" means the Collateral Pledge and Security Agreement, dated
as of the Closing Date, made by us in favor of the Trustee, governing the
disbursement of funds from the Pledge Account, as such agreement may be amended,
restated, supplemented or otherwise modified from time to time.
 
    "PLEDGED SECURITIES" means the Government Securities purchased by us and
held in the Pledge Account in accordance with the Pledge Agreement.
 
    "PREFERRED STOCK" means, with respect to any Person, any and all shares,
interests, participations or other equivalents (however designated, whether
voting or non-voting) of such Person's preferred or preference equity, whether
now outstanding or issued after the Closing Date, including, without limitation,
all series and classes of such preferred stock or preference stock.
 
    "PUBLIC EQUITY OFFERING" means an underwritten primary public offering of
our Common Stock pursuant to an effective registration statement under the
Securities Act.
 
    A "PUBLIC MARKET" shall be deemed to exist if
 
    - we have consummated a Public Equity Offering and
 
    - at least 15% of our total issued and outstanding Common Stock has been
      distributed by means of an effective registration statement under the
      Securities Act or sales pursuant to Rule 144 under the Securities Act.
 
    "RESTRICTED SUBSIDIARY" means any of our Subsidiaries other than an
Unrestricted Subsidiary.
 
    "SIGNIFICANT SUBSIDIARY" means, at any date of determination, any Restricted
Subsidiary that, together with its Subsidiaries,
 
    - for our most recent fiscal year, accounted for more than 10% of the
      consolidated revenues of the Company and its Restricted Subsidiaries or
 
    - as of the end of such fiscal year, was the owner of more than 10% of the
      consolidated assets of us and its Restricted Subsidiaries, all as set
      forth on our most recently available consolidated financial statements for
      such fiscal year.
 
    "S&P" means Standard & Poor's Ratings Service and its successors.
 
    "STATED MATURITY" means,
 
    - with respect to any debt security, the date specified in such debt
      security as the fixed date on which the final installment of principal of
      such debt security is due and payable and
 
    - with respect to any scheduled installment of principal of or interest on
      any debt security, the date specified in such debt security as the fixed
      date on which such installment is due and payable.
 
    "SUBSIDIARY" means, with respect to any Person, any corporation, association
or other business entity of which more than 50% of the voting power of the
outstanding Voting Stock is owned, directly or indirectly, by such Person and
one or more other Subsidiaries of such Person.
 
    "SYGNET ACQUISITION" means, collectively, the transfer of the stock of
Dobson/Sygnet Operating Company to us and the merger of Dobson/Sygnet Operating
Company with and into Sygnet Wireless, Inc., pursuant to which Sygnet Wireless,
Inc. survived as our Wholly Owned Restricted Subsidiary.
 
    "TEMPORARY CASH INVESTMENT" means any of the following:
 
       (A) direct obligations of the United States of America or any agency
    thereof or obligations fully and unconditionally guaranteed by the United
    States of America or any agency thereof,
 
        (B) time deposit accounts, certificates of deposit and money market
    deposits maturing within 180 days of the date of acquisition thereof issued
    by a bank or trust company which is organized under the laws of the United
    States of America, any state thereof or any foreign country recognized by
    the
 
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    United States of America, and which bank or trust company has capital,
    surplus and undivided profits aggregating in excess of $50 million (or the
    foreign currency equivalent thereof) and has outstanding debt which is rated
    "A" (or such similar equivalent rating) or higher by at least one nationally
    recognized statistical rating organization (as defined in Rule 436 under the
    Securities Act) or any money-market fund sponsored by a registered broker
    dealer or mutual fund distributor,
 
        (C) repurchase obligations with a term of not more than 30 days for
    underlying securities of the types described in clause (A) above entered
    into with a bank meeting the qualifications described in clause (B) above,
 
       (D) commercial paper, maturing not more than 90 days after the date of
    acquisition, issued by a corporation (other than an Affiliate of the
    Company) organized and in existence under the laws of the United States of
    America, any state thereof or any foreign country recognized by the United
    States of America with a rating at the time as of which any investment
    therein is made of "P-1" (or higher) according to Moody's or "A-1" (or
    higher) according to S&P, and
 
        (E) securities with maturities of six months or less from the date of
    acquisition issued or fully and unconditionally guaranteed by any state,
    commonwealth or territory of the United States of America, or by any
    political subdivision or taxing authority thereof, and rated at least "A" by
    S&P or Moody's.
 
    "TOWER LEASE" means the lease of the towers sold in the Tower Sale pursuant
to a tower lease agreement between Sygnet Communications, Inc. and Dobson Tower
Company.
 
    "TOWER SALE" means the sale of substantially all of Sygnet Communications,
Inc.'s towers to Dobson Tower Company or any of its Affiliates.
 
    "TRADE PAYABLES" means, with respect to any Person, any accounts payable or
any other indebtedness or monetary obligation to trade creditors created,
assumed or Guaranteed by such Person or any of its Subsidiaries arising in the
ordinary course of business in connection with the acquisition of goods or
services.
 
    "TRANSACTION DATE" means, with respect to the Incurrence of any Indebtedness
by us or any of our Restricted Subsidiaries, the date such Indebtedness is to be
Incurred and, with respect to any Restricted Payment, the date such Restricted
Payment is to be made.
 
    "UNRESTRICTED SUBSIDIARY" means any Subsidiary of ours that at the time of
determination shall be designated an Unrestricted Subsidiary by the Board of
Directors in the manner provided below and any Subsidiary of an Unrestricted
Subsidiary. The Board of Directors may designate any Restricted Subsidiary,
including any newly acquired or newly formed Subsidiary of ours, to be an
Unrestricted Subsidiary unless such Subsidiary owns any Capital Stock of, or
owns or holds any Lien on any property of, the Company or any Restricted
Subsidiary; but only if
 
       (A) any Guarantee by us or by any Restricted Subsidiary of any
    Indebtedness of the Subsidiary being so designated shall be deemed an
    "Incurrence" of such Indebtedness and an "Investment" by the Company or such
    Restricted Subsidiary (or both, if applicable) at the time of such
    designation;
 
        (B) either the Subsidiary to be so designated has total assets of $1,000
    or less or if such Subsidiary has assets greater than $1,000, such
    designation would be permitted under the "Limitation on Restricted Payments"
    covenant described below and
 
        (C) if applicable, the Incurrence of Indebtedness and the Investment
    referred to in clause (A) of this proviso would be permitted under the
    "Limitation on Indebtedness" and "Limitation on Restricted Payments"
    covenants described below.
 
    The Board of Directors may designate any Unrestricted Subsidiary to be a
Restricted Subsidiary; but only if immediately after giving effect to such
designation
 
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    - all Liens and Indebtedness of such Unrestricted Subsidiary outstanding
      immediately after such designation would, if Incurred at such time, have
      been permitted to be incurred for all purposes of the Indenture and
 
    - no Default or Event of Default shall have occurred and be continuing. Any
      such designation by the Board of Directors shall be evidenced to the
      Trustee by promptly providing the Trustee a copy of the Board Resolution
      giving effect to such designation and an Officers' Certificate certifying
      that such designation complied with the foregoing provisions.
 
    "VOTING STOCK" means with respect to any Person, Capital Stock of any class
or kind ordinarily having the power to vote for the election of directors,
managers or other voting members of the governing body of such Person.
 
    "WHOLLY OWNED" means, with respect to any Subsidiary of any Person, the
ownership of all of the outstanding Capital Stock of such Subsidiary (other than
any director's qualifying shares or Investments by foreign nationals mandated by
applicable law) by such Person or one or more Wholly Owned Subsidiaries of such
Person.
 
COVENANTS
 
    The Indenture contains, among others, the following covenants:
 
    LIMITATION ON INDEBTEDNESS
 
    (A)  Neither we nor any Restricted Subsidiary may Incur any Indebtedness.
However, we may Incur Indebtedness, and any Restricted Subsidiary may Incur
Acquired Indebtedness, if, after giving effect to the Incurrence of such
Indebtedness the Consolidated Leverage Ratio would be less than:
 
    - 8 to 1, for Indebtedness Incurred on or prior to December 31, 1999, or
 
    - 7 to 1, for Indebtedness Incurred after December 31, 1999.
 
    (B)  We and any Restricted Subsidiary may incur the following types of
Indebtedness:
 
        (1) Indebtedness secured under the New Credit Agreement, or any
    refinancing thereof, in a principal amount not to exceed $450.0 million,
    less any amount of such Indebtedness permanently repaid under the
    "Limitation on Asset Sales" covenant described below;
 
        (2) Indebtedness of any Restricted Subsidiary owed to us or any of our
    Restricted Subsidiaries. However, any subsequent issuance or transfer of
    Capital Stock, or any other event resulting in any such Restricted
    Subsidiary ceasing to be a Restricted Subsidiary or any subsequent transfer
    of such Indebtedness except to us or another Restricted Subsidiary, will be
    deemed an Incurrence of Indebtedness after such issuance or transfer.
 
        (3) Indebtedness issued in exchange for, or the net proceeds of which
    are used to refinance or refund, then outstanding Indebtedness, other than
    Indebtedness
 
       - secured under the New Credit Agreement or any refinancing thereof,
 
       - of a Restricted Subsidiary owed to us or any other Restricted
         Subsidiary,
 
       - in respect of performance, surety and appeal bonds provided in the
         ordinary course of business,
 
       - in respect of Currency Agreements and Interest Rate Agreements,
 
       - arising from indemnity agreements, purchase price adjustment
         agreements, from guaranties or letters of credit or other obligations
         incurred in connection with the disposition of any business, assets or
         Restricted Subsidiary,
 
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<PAGE>
       - Guaranties of the Notes and Guarantors of our Indebtedness by any
         Restricted Subsidiary,
 
    - our Indebtedness not to exceed at any one time outstanding two times the
      net Cash Proceeds received by Dobson/Sygnet as a capital contribution or
      from certain sales of Capital Stock, or
 
    - other Indebtedness outstanding at any time in an aggregate amount of up to
      $10 million,
 
and any refinancings thereof in an amount not to exceed the amount so refinanced
or refunded (plus premiums, accrued interest, fees and expenses): Indebtedness
the proceeds of which are used to refinance or refund the Notes or Indebtedness
that ranks equally with, or subordinated in right of payment to, the Notes shall
only be permitted under this clause (C) if
 
       - in case the Notes are refinanced in part or the Indebtedness to be
         refinanced ranks equally with the Notes, such new Indebtedness, by its
         terms or by the terms of any agreement or instrument pursuant to which
         such new Indebtedness is outstanding, is expressly made of equal rank
         with, or subordinate in right of payment to, the remaining Notes,
 
       - in case the Indebtedness to be refinanced is subordinated in right of
         payment to the Notes, such new Indebtedness, by its terms or by the
         terms of any agreement or instrument pursuant to which such new
         Indebtedness is issued or remains outstanding, is expressly made
         subordinate in right of payment to the Notes at least to the extent
         that the Indebtedness to be refinanced is subordinated to the Notes,
 
       - such new Indebtedness, determined as of the date of Incurrence of such
         new Indebtedness, does not mature prior to the Stated Maturity of the
         Indebtedness to be refinanced or refunded, and the Average Life of such
         new Indebtedness is at least equal to the remaining Average Life of the
         Indebtedness to be refinanced or refunded; and
 
       - in no event may Indebtedness of the Company be refinanced by means of
         any Indebtedness of any Restricted Subsidiary pursuant to this clause
         (3);
 
        (4) Indebtedness
 
           (a) in respect of performance, surety or appeal bonds provided in the
       ordinary course of business,
 
           (b) under Currency Agreements and Interest Rate Agreements; but only
       if such agreements
 
           - are designed solely to protect Dobson/Sygnet or its Subsidiaries
             against fluctuations in foreign currency exchange rates or interest
             rates and
 
           - do not increase the Indebtedness of the obligor outstanding at any
             time other than as a result of fluctuations in foreign currency
             exchange rates or interest rates or by reason of fees, indemnities
             and compensation payable thereunder; or
 
           (c) arising from agreements providing for indemnification, adjustment
       of purchase price or similar obligations, or from Guarantees or letters
       of credit, surety bonds or performance bonds securing any of our
       obligations or those of any of our Restricted Subsidiaries pursuant to
       such agreements, in any case Incurred in connection with the disposition
       of any business, assets or Restricted Subsidiary (other than Guarantees
       of Indebtedness Incurred by any Person acquiring all or any portion of
       such business, assets or Restricted Subsidiary for the purpose of
       financing such acquisition), in an amount not to exceed the gross
       proceeds actually received by us or by any Restricted Subsidiary in
       connection with such disposition;
 
        (5) our Indebtedness, to the extent the net proceeds thereof are
    promptly
 
           - used to purchase Notes tendered in an Offer to Purchase made as a
             result of a Change in Control or
 
           - deposited to defease the Notes as described below under
             "Defeasance";
 
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<PAGE>
        (6) Guarantees of the Notes and Guarantees of our Indebtedness by any
    Restricted Subsidiary provided the Guarantee of such Indebtedness is
    permitted by and made in accordance with the "Limitation on Issuances of
    Guarantees by Restricted Subsidiaries" covenant described below;
 
        (7) Indebtedness Incurred to finance the cost (including the cost of
    design, development, construction, installation or integration) of tangible
    telecommunications network assets, equipment or inventory acquired by us or
    by a Restricted Subsidiary after the Closing Date;
 
        (8) our Indebtedness, and any refinancings thereof, not to exceed, at
    any one time outstanding, two times the Net Cash Proceeds received by us
    after the Closing Date as a capital contribution or from the issuance and
    sale of its Capital Stock (other than Disqualified Stock) to a Person that
    is not our Subsidiary to the extent such Net Cash Proceeds have not been
    used pursuant to clause (c) of the paragraph (A) or clause (3), (4), (5) or
    (8) of paragraph (B) of the "Limitation on Restricted Payments" covenant
    described below to make a Restricted Payment; on the condition that such
    Indebtedness does not mature prior to the Stated Maturity of the Notes and
    has an Average Life longer than the Notes; and
 
        (9) Indebtedness, and any refinancings thereof, outstanding at any time
    in an aggregate amount not to exceed $10 million, less any amount of such
    Indebtedness permanently repaid as provided under the "Limitation on Asset
    Sales" covenant described below.
 
    (C)  The maximum amount of Indebtedness that the Company or a Restricted
Subsidiary may Incur pursuant to this "Limitation on Indebtedness" covenant
shall not be deemed to be exceeded solely as the result of fluctuations in the
exchange rates of currencies.
 
    LIMITATION ON RESTRICTED PAYMENTS
 
    (A)  We and our Restricted Subsidiaries are not permitted to take the
following actions (each a "Restricted Payment"):
 
    (1) declare or pay any dividend or make any distribution on or with respect
       to its Capital Stock. However, dividends or distributions are permitted
       if they are either payable solely in Capital Stock, other than
       Disqualified Stock, or in options, warrants or other rights to acquire
       Capital Stock, or are payable to Dobson/Sygnet or any Restricted
       Subsidiary. If such Restricted Subsidiary is not a Wholly Owned
       Subsidiary then the distributions or dividends may be payable to its
       other shareholders only if on a pro rata basis measured by value.
 
    (2) purchase, redeem, retire or otherwise acquire for value any Capital
       Stock of Dobson/Sygnet or an Unrestricted Subsidiary (including options,
       warrants or other rights to acquire such shares of Capital Stock) held by
       any Person or a Restricted Subsidiary (including options, warrants or
       other rights to acquire such shares of Capital Stock) held by any
       Affiliate of Dobson/Sygnet (other than a Wholly Owned Restricted
       Subsidiary) or any holder (or any Affiliate of such holder) of 5% or more
       of the Capital Stock of Dobson/Sygnet,
 
    (3) make any voluntary or optional principal payment, any redemption,
       repurchase, defeasance, or other acquisition or retirement for value, of
       any Indebtedness of Dobson/Sygnet that is subordinated in right of
       payment to the Notes, or
 
    (4) make any Investment, other than a Permitted Investment
 
if, at the time of, and after giving effect to, the proposed Restricted Payment:
 
    (a) a Default or Event of Default occurs and continues to occur or would
       result therefrom or shall have occurred and be continuing,
 
    (b) We could not Incur at least $1.00 of Indebtedness under paragraph (1) of
       the "Limitation on Indebtedness" covenant, or
 
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    (c) the aggregate amount of such Restricted Payments and all other
       Restricted Payments declared or made after the date of the Indenture
       would exceed the sum of:
 
           - 50% of the Adjusted Consolidated Net Income (or, if the Adjusted
             Consolidated Net Income is a loss, minus 100% of the amount of such
             loss) accrued during the period treated as one accounting period,
             beginning on January 1, 1999 to the end of the most recent fiscal
             quarter preceding the date of such Restricted Payment for which our
             consolidated financial statements have been filed with the SEC PLUS
 
           - the aggregate Net Cash Proceeds received by us after the December
             23, 1998 as a capital contribution or from issuing or selling its
             Capital Stock, and options, warrants and other rights to acquire
             its Capital Stock other than Disqualified Stock, to a Person who is
             not our Subsidiary (except to the extent such Net Cash Proceeds are
             used to Incur Indebtedness pursuant to clause (B)(3) under the
             "Limitation on Indebtedness" covenant) (in each case, exclusive of
             any Disqualified Stock or any options, warrants or other rights
             that are redeemable at the option of the holder, or are required to
             be redeemed, prior to the Stated Maturity of the Notes) PLUS
 
           - an amount equal to the net reduction in Investments that constitute
             Restricted Payments resulting from payments of interest, dividends,
             repayments of loans or advances, returns of capital or other
             transfers of assets to us or to any Restricted Subsidiary or from
             the Net Cash Proceeds from the sale of any such Investment (except
             to the extent any such payment or proceeds are included in the
             calculation of Adjusted Consolidated Net Income), or from
             redesignations of Unrestricted Subsidiaries as Restricted
             Subsidiaries (valued in each case as provided in the definition of
             "Investments"), not to exceed, in each case, the amount of
             Investments previously made by Dobson/Sygnet or any Restricted
             Subsidiary in such Unrestricted Subsidiary.
 
    (B)  The provision of paragraph (A) above will not prohibit the following
actions:
 
       (1) the payment of any dividend within 60 days after the date of its
           declaration if, at the date of declaration, the payment of the
           dividend would not be a Restricted Payment;
 
       (2) the redemption, repurchase, defeasance or other acquisition or
           retirement for value of Indebtedness that is subordinated in right of
           payment to the Notes with the proceeds of, or in exchange for,
           Indebtedness Incurred under clause (B)(3) of the "Limitation on
           Indebtedness" covenant;
 
       (3) the repurchase, redemption or other acquisition of our Capital Stock
           (or options, warrants or other rights to acquire such Capital Stock)
           in exchange for, or out of the proceeds of a substantially concurrent
           capital contribution or offering of, shares of our Capital Stock
           (other than Disqualified Stock) or options, warrants or other rights
           to acquire such Capital Stock, exclusive of any options, warrants or
           other rights that are redeemable at the option of the holder, or are
           required to be redeemed, prior to the Stated Maturity of the Notes;
 
       (4) the making of any principal payment or the repurchase, redemption,
           retirement, defeasance or other acquisition for value of our
           Indebtedness which is subordinated in right of payment to the Notes
           in exchange for, or out of the proceeds of, a substantially
           concurrent capital contribution or offering of, shares of our Capital
           Stock (other than Disqualified Stock), or options, warrants or other
           rights to acquire such Capital Stock, exclusive of any options,
           warrants or other rights that are redeemable at the option of the
           holder, or are required to be redeemed, prior to the Stated Maturity
           of the Notes;
 
       (5) the declaration or payment of dividends on our Common Stock following
           a Public Equity Offering of such Common Stock, of up to 6% per annum
           of the Net Cash Proceeds received by us in such Public Equity
           Offering;
 
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       (6) payments or distributions to dissenting stockholders pursuant to
           applicable law or in connection with a consolidation, merger or
           transfer of assets that complies with the provisions of the Indenture
           applicable to mergers, consolidations and transfers of all or
           substantially all of our property and assets;
 
       (7) the purchase, redemption, acquisition, cancellation or other
           retirement for value of shares of our Capital Stock to the extent
           necessary in the good faith judgment of our Board of Directors, to
           prevent the loss or secure the renewal or reinstatement of any
           license or franchise held by us or any by Restricted Subsidiary from
           any governmental agency;
 
       (8) Investments in any Person the primary business of which is related,
           ancillary or complementary to our business and that of our Restricted
           Subsidiaries on the date of such Investments. However, the aggregate
           amount of such Investments may not exceed the sum of:
 
           -  $10 million plus the amount of Net Cash Proceeds received by us as
               a capital contribution or from the sale of its Capital Stock
               (other than Disqualified Stock) to a Person who is not our
               Subsidiary except to the extent such Net Cash Proceeds are used
               to Incur Indebtedness or to make Restricted Payments pursuant to
               paragraph (c) above or clauses (3), (4) or (5) of this paragraph,
               plus
 
           -  the net reduction in Investments made pursuant to this clause (8)
               resulting from distributions on or repayments of such Investments
               or from the Net Cash Proceeds from the sale of any such
               Investment (except in each case to the extent any such payment or
               proceeds is included in the calculation of Adjusted Consolidated
               Net Income) or from such Person becoming a Restricted Subsidiary
               (valued in each case as provided in the definition of
               "Investments"), on the condition that the net reduction in any
               Investment shall not exceed the amount of such Investment;
 
       (9) Investments acquired as a capital contribution or in exchange for our
           Capital Stock (other than Disqualified Stock); or
 
       (10) the purchase, redemption, retirement or other acquisition for value
           of our Capital Stock, or options to purchase such shares, held by
           directors, employees or former directors or employees of
           Dobson/Sygnet or any Restricted Subsidiary (or their estates or
           beneficiaries under their estates) upon death, disability,
           retirement, termination of employment or pursuant to the terms of any
           agreement under which such shares of Capital Stock or options were
           issued. However, the aggregate consideration paid for such purchase,
           redemption, acquisition, cancellation or other retirement of such
           shares of Capital Stock or options after the Closing Date does not
           exceed $1 million in any calendar year;
 
except in the case of clauses (1) and (3), no Default or Event of Default shall
have occurred and be continuing or occur as a consequence of the actions or
payments set forth therein.
 
    Each Restricted Payment permitted pursuant to the preceding paragraph (other
than the Restricted Payment referred to in clause (2) thereof, an exchange of
Capital Stock for Capital Stock or Indebtedness referred to in clause (3) or (4)
thereof and an Investment referred to in clause (9) thereof), and the Net Cash
Proceeds from any capital contribution or any issuance of Capital Stock referred
to in clauses (3), (4) and (8), shall be included in calculating whether the
conditions of clause (c) of the paragraph (A) have been met with respect to any
subsequent Restricted Payments. In the event the proceeds of an issuance of our
Capital Stock are used for the redemption, repurchase or other acquisition of
the Notes, or Indebtedness that ranks equally with the Notes, then the Net Cash
Proceeds of such issuance shall be included in clause (c) of the paragraph (A)
only to the extent such proceeds are not used for such redemption, repurchase or
other acquisition of Indebtedness.
 
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    LIMITATION ON DIVIDEND AND OTHER PAYMENT RESTRICTIONS AFFECTING RESTRICTED
     SUBSIDIARIES
 
    We and our Restricted Subsidiaries shall not create or otherwise cause or
permit to exist any consensual restriction on the ability of any Restricted
Subsidiary to:
 
    - pay dividends or make any other distributions on its Capital Stock or pay
      any Indebtedness owed to us or any other Restricted Subsidiary,
 
    - make loans or advances to us or any other Restricted Subsidiary, or
 
    - transfer any of its property or assets to us or any other Restricted
      Subsidiary.
 
However, the prohibition does not apply to any encumbrances or restrictions:
 
    - existing on the Closing Date in the New Credit Agreement, the Indenture
      pursuant to an agreement in effect or entered into on the date of the
      Indenture or any other agreement in effect on the Closing Date, and any
      amendments, extensions, refinancings, renewals or replacements of such
      agreements; but only if the restrictions in any such amendments,
      extensions, refinancings, renewals or replacements are no less favorable
      in any material respect to the Holders than those restrictions that are
      being extended, refinanced, renewed or replaced;
 
    - existing under or by reason of applicable law;
 
    - existing with respect to any Person or the property or assets of any
      Person acquired by us or by any Restricted Subsidiary, existing at the
      time of such acquisition and not incurred in contemplation thereof;
 
    - in the case of restrictions relating to the transfers of property,
      restrictions that:
 
       - restrict in a customary manner the subletting, assignment or transfer
         of any property or asset that is a lease, license, conveyance or
         contract or similar property or asset,
 
       - exist by virtue of any transfer of, agreement to transfer, option or
         right with respect to, or Lien on, any property or assets of ours or of
         any Restricted Subsidiary not otherwise prohibited by the Indenture, or
 
       - are agreed to in the ordinary course of business, not relating to any
         Indebtedness, and that do not, individually or in the aggregate,
         detract from the value of property or assets of ours or of any
         Restricted Subsidiary in any manner material to us or to any Restricted
         Subsidiary;
 
    - with respect to a Restricted Subsidiary and imposed pursuant to an
      agreement that has been entered into for the sale or disposition of all or
      substantially all of the Capital Stock of, or property and assets of, such
      Restricted Subsidiary; or
 
    - if contained in the terms of any Indebtedness of a Restricted Subsidiary:
 
       - the encumbrance or restriction applies only in the event of a payment
         default or a default with respect to a financial covenant contained in
         such Indebtedness or agreement,
 
       - the encumbrance or restriction is not materially more disadvantageous
         to the holders of the Notes than is customary in comparable financings
         (as determined by us), and
 
       - if we determine that any such encumbrance or restriction will not
         materially affect our ability to make principal or interest payments on
         the Notes.
 
    LIMITATION ON THE ISSUANCE AND SALE OF CAPITAL STOCK OF RESTRICTED
     SUBSIDIARIES
 
    We and our Restricted Subsidiaries will not sell any shares of Capital Stock
of a Restricted Subsidiary (including options, warrants or other rights to
purchase shares of such Capital Stock) except:
 
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    - to us or a Wholly Owned Restricted Subsidiary;
 
    - issuances of director's qualifying shares or sales to foreign nationals of
      shares of Capital Stock of foreign Restricted Subsidiaries, to the extent
      required by applicable law;
 
    - if, immediately after giving effect to such sale, such Restricted
      Subsidiary would no longer constitute a Restricted Subsidiary. However,
      any Investment in such Person remaining after giving effect to such sale
      would have been permitted to be made under the "Limitation on Restricted
      Payments" covenant, if made on the date of such issuance or sale; and
 
    - sales of Common Stock of a Restricted Subsidiary. However, any Net Cash
      Proceeds of such sale must be applied in accordance with the "Limitation
      on Asset Sales" covenant described below.
 
    LIMITATION ON ISSUANCES OF GUARANTEES BY RESTRICTED SUBSIDIARIES
 
    We will not permit any Restricted Subsidiary to Guarantee any Indebtedness
of the Company which ranks equally with or subordinate in right of payment to
the Notes ("Guaranteed Indebtedness"), unless:
 
    - such Restricted Subsidiary simultaneously Guarantees (a "Subsidiary
      Guarantee") payment of the Notes and
 
    - such Restricted Subsidiary waives any rights of reimbursement, indemnity
      or subrogation against us or any other Restricted Subsidiary as a result
      of any payment by such Restricted Subsidiary under its Subsidiary
      Guarantee;
 
    The above restriction does not apply to any Guarantee of any Restricted
Subsidiary that existed at the time such Person became a Restricted Subsidiary
and was not Incurred in contemplation of becoming a Restricted Subsidiary. If
the Guaranteed Indebtedness ranks equally with the Notes, then the Guarantee of
such Guaranteed Indebtedness shall rank equally with or be subordinated to the
Subsidiary Guarantee. If the Guaranteed Indebtedness is subordinated to the
Notes, then the Guarantee of such Guaranteed Indebtedness shall be also
subordinated to the Subsidiary Guarantee to the extent that the Guaranteed
Indebtedness is subordinated to the Notes.
 
    LIMITATION ON LIENS
 
    We and our Restricted Subsidiaries will not create or permit to exist any
Lien, other than Permitted Liens, on any of its assets or properties, including
Capital Stock or Indebtedness of any Restricted Subsidiary, unless at the same
time effective provision is made to secure the obligations due under the
Indenture and the Notes (or, if the obligation or liability to be secured by
such Lien is subordinated in right of payment to the Notes, prior to) the
obligation or liability secured by such Lien.
 
    The foregoing limitation does not apply to:
 
    - Liens existing on the Closing Date;
 
    - Liens on any assets or Capital Stock of ours or of our Restricted
      Subsidiaries created in favor of the Holders;
 
    - Liens on assets of a Restricted Subsidiary created in favor of us or a
      Wholly Owned Restricted Subsidiary to secure Indebtedness owing to us or
      such other Restricted Subsidiary;
 
    - Liens securing Indebtedness which is Incurred to refinance secured
      Indebtedness which is permitted to be Incurred under the "Limitation on
      Indebtedness" covenant. However, any such Liens may not cover any of our
      property or assets or of any Restricted Subsidiary other than the property
      or assets securing the Indebtedness being refinanced;
 
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    - Liens on the Capital Stock of, or any property or assets of, a Restricted
      Subsidiary securing Indebtedness of such Restricted Subsidiary permitted
      under the "Limitation on Indebtedness" covenant; or
 
    - Liens securing Indebtedness Incurred under the New Credit Agreement
      pursuant to clause (B) (1) of the "Limitation on Indebtedness" covenant
      described above.
 
    LIMITATION ON SALE-LEASEBACK TRANSACTIONS
 
    We and our Restricted Subsidiaries shall not enter into any sale-leaseback
transaction for any of their assets or properties unless;
 
    - the lease, including renewal rights, does not exceed three years;
 
    - the lease secures or relates to industrial revenue or pollution control
      bonds;
 
    - the transaction is solely between us and any Wholly Owned Restricted
      Subsidiary or solely between Wholly Owned Restricted Subsidiaries;
 
    - the transaction is either the Tower Sale or the Tower Lease; or
 
    - within twelve months after the sale or transfer of any assets or
      properties is completed, we or such Restricted Subsidiary apply the net
      proceeds received from such sale in accordance with the "Limitation on
      Asset Sales" covenant described below.
 
    LIMITATION ON TRANSACTIONS WITH STOCKHOLDERS AND AFFILIATES
 
    We and our Restricted Subsidiaries shall not engage in any transaction or
series of transactions, including, without limitation, the purchase, sale, lease
or exchange of property or assets, or the rendering of any service, with any
holder (or any Affiliate of such holder) of 5% or more of any class of our
Capital Stock or with any Affiliate or any Restricted Subsidiary an ("Affiliate
Transaction"), except upon fair and reasonable terms no less favorable to us or
to such Restricted Subsidiary than could be obtained in an arm's-length
transaction with a non-Affiliate.
 
    The provisions of the above paragraph shall not prohibit the following
activities:
 
       (A) transactions
 
           - approved by a majority of the members of our Board of Directors who
             do not have any material financial interest in such transactions,
             or
 
           - for which we or a Restricted Subsidiary delivers to the Trustee a
             written opinion of a nationally recognized investment banking firm
             stating that the transaction is fair to Dobson/Sygnet or such
             Restricted Subsidiary from a financial point of view;
 
        (B) any transaction solely between us and any of our Wholly Owned
    Restricted Subsidiaries or solely between Wholly Owned Restricted
    Subsidiaries;
 
        (C) the payment of reasonable and customary regular fees to our
    directors who are not our employees;
 
       (D) any payments or other transactions pursuant to any tax-sharing
    agreement between us and any other Person with which we file a consolidated
    tax return or with which we are part of a consolidated group for tax
    purposes;
 
        (E) transactions between us or any of our Restricted Subsidiaries and
    Dobson Communications or its Affiliates on terms of the kind customarily
    employed to allocate charges among members of a consolidated group of
    entities, in any such case that are fair and reasonable to us or such
    Restricted
 
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    Subsidiary; on the condition that the aggregate consideration subject to
    such transactions does not exceed $3 million in any calendar year; or
 
        (F) any Restricted Payments not prohibited by the "Limitation on
    Restricted Payments" covenant.
 
    Any transaction covered by the first paragraph of this "Limitation on
Transactions with Stockholders and Affiliates" covenant and not covered by
clauses (2) through (4) of this paragraph, the aggregate amount of which exceeds
$1.0 million in value, must be approved or determined to be fair by a majority
of the disinterested members of the Board of Directors above or if the aggregate
amount exceeds $5.0 million in value, the transaction must be approved or we or
our Restricted Subsidiary must provide a fairness opinion as described above.
 
    LIMITATION ON ASSET SALES
 
    We and our Restricted Subsidiaries shall not make any Asset Sale, unless:
 
    - the consideration received is at least equal to the fair market value of
      the assets sold or disposed of, and
 
    - at least 85% of the consideration received consists of cash or Temporary
      Cash Investments.
 
    If the Net Cash Proceeds received from one or more Asset Sales in any period
of 12 consecutive months exceed 10% of Adjusted Consolidated Net Tangible Assets
(determined as of the date closest to the commencement of such 12-month period
for which our consolidated balance sheet and that of our its subsidiaries has
been filed with SEC), then we or the Restricted Subsidiary shall:
 
        (1) within 12 months after the date Net Cash Proceeds so received exceed
    10% of Adjusted Consolidated Net Tangible Assets
 
         - apply an amount equal to such excess Net Cash Proceeds to permanently
           repay our Senior Indebtedness or that of any Restricted Subsidiary
           providing a Subsidiary Guarantee or Indebtedness of any other
           Restricted Subsidiary, in each case owing to a Person other than us
           or any of our Restricted Subsidiaries or
 
         - invest an equal amount, or the amount not so applied pursuant to
           clause (1) in property or assets (other than current assets) of a
           nature or type or that are used in a business similar or related to
           the nature or type of our property and assets of, or our business of,
           or that of our Restricted Subsidiaries existing on the date of such
           investment and
 
        (2) apply such excess Net Cash Proceeds as provided below. The amount of
    such excess Net Cash Proceeds required to be applied during such
    twelve-month period as set forth in the preceding sentence and not applied
    by the end of such period shall constitute "Excess Proceeds."
 
    At such time as the aggregate amount of Excess Proceeds not previously used
to make an Offer to Purchase totals at least $5 million, we must commence and
consummate an Offer to Purchase from the Holders on a pro rata basis an
aggregate principal amount of Notes equal to the Excess Proceeds on such date,
at a purchase price equal to 100% of the principal amount thereof plus accrued
interest to the Payment Date.
 
REPURCHASE OF NOTES UPON A CHANGE OF CONTROL
 
    Within 30 days after a Change of Control we must commence and consummate an
Offer to Purchase for all Notes then outstanding, at a purchase price equal to
101% of the principal amount thereof, plus accrued interest to the Payment Date.
 
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    There can be no assurance that we will have sufficient funds available at
the time of any Change of Control to make any debt payment (including
repurchases of Notes) required by the foregoing covenant and by our other
securities which might be outstanding at the time. The covenant requiring us to
repurchase the Notes upon a Change of Control will, unless consents are
obtained, require us to repay all indebtedness then outstanding which by its
terms would prohibit such Note repurchase, either prior to or concurrently with
such Note repurchase.
 
SEC REPORTS AND REPORTS TO HOLDERS
 
    At all times from and after the earlier of:
 
    - the date of the commencement of an Exchange Offer or the effectiveness of
      the Shelf Registration Statement (the "Registration"), and
 
    - June 21, 1999,
 
    in either case, whether or not we are then required to file reports with the
SEC, we must file with the SEC all such reports and other information as it
would be required to file with the SEC by Sections 13(a) or 15(d) under the
Securities Exchange Act of 1934 if it were subject thereto. We shall supply the
Trustee and each holder or shall supply to the Trustee for forwarding to each
such holder, without cost to such holder, copies of such reports and other
information. In addition, at all times prior to the earlier of the date of the
Registration and June 21, 1999, we shall, at our cost, deliver to each holder of
the Notes quarterly and annual reports substantially equivalent to those which
would be required by the Exchange Act. In addition, at all times prior to the
Registration, upon the request of any holder or any prospective purchaser of the
Notes designated by a holder, we shall supply to such holder or such prospective
purchaser the information required under Rule 144A under the Securities Act.
 
EVENTS OF DEFAULT
 
    The following events are defined as "Events of Default" in the Indenture:
 
       (A) default in the payment of principal of (or premium, if any, on) any
    Note when the same becomes due and payable at maturity, upon acceleration,
    redemption or otherwise;
 
        (B) default in the payment of interest on any Note when the same becomes
    due and payable, and such default continues for a period of 30 days; on the
    condition that a failure to make any of the first six scheduled interest
    payments on the Notes in a timely manner will constitute an Event of Default
    with no grace or cure period;
 
        (C) default in the performance or breach of the provisions of the
    Indenture applicable to mergers, consolidations and transfers of all or
    substantially all of the assets of the Company or the failure to make or
    consummate an Offer to Purchase in accordance with the "Limitation on Asset
    Sales" or "Repurchase of Notes upon a Change of Control" covenant;
 
       (D) We default in the performance of or breach any of our other covenants
    or agreements in the Indenture or under the Notes (other than a default
    specified above) and such default or breach continues for a period of 30
    consecutive days after written notice by the Trustee or the holders of 25%
    or more in aggregate principal amount of the Notes;
 
        (E) there occurs with respect to any of our Indebtedness or any of
    Significant Subsidiary having an aggregate outstanding principal amount of
    $5 million or more for all such issues of all such Persons, whether such
    Indebtedness now exists or shall hereafter be created
 
       -  an event of default that has caused the holder thereof to declare such
           Indebtedness to be due and payable prior to its Stated Maturity and
           such Indebtedness has not been discharged
 
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           in full or such acceleration has not been rescinded or annulled
           within 30 days of such acceleration, and/or
 
       -  the failure to make a principal payment at the final (but not any
           interim) fixed maturity and such defaulted payment shall not have
           been made, waived or extended within 30 days of such payment default;
 
        (F) any final judgment or order (not covered by insurance) for the
    payment of money in excess of $5 million in the aggregate for all such final
    judgments or orders against all such Persons (treating any deductibles,
    self-insurance or retention as not so covered) shall be rendered against us
    or any Significant Subsidiary and shall not be paid or discharged, and there
    shall be any period of 30 consecutive days following entry of the final
    judgment or order that causes the aggregate amount for all such final
    judgments or orders outstanding and not paid or discharged against all such
    Persons to exceed $5 million during which a stay of enforcement of such
    final judgment or order, by reason of a pending appeal or otherwise, shall
    not be in effect;
 
       (G) a court having jurisdiction in the premises enters a decree or order
    for:
 
       -  relief in respect of us or any Significant Subsidiary in an
           involuntary case under any applicable bankruptcy, insolvency or other
           similar law now or hereafter in effect,
 
       -  appointment of a receiver, liquidator, assignee, custodian, trustee,
           sequestrator or similar official of us or any Significant Subsidiary
           or for all or substantially all of our property and assets or of any
           Significant Subsidiary, or
 
       -  the winding up or liquidation of our affairs or of any Significant
           Subsidiary and, in each case, such decree or order shall remain
           unstayed and in effect for a period of 30 consecutive days;
 
       (H) we or any Significant Subsidiary
 
       -  commences a voluntary case under any applicable bankruptcy, insolvency
           or other similar law now or hereafter in effect, or consents to the
           entry of an order for relief in an involuntary case under any such
           law,
 
       -  consents to the appointment of or taking possession by a receiver,
           liquidator, assignee, custodian, trustee, sequestrator or similar
           official of ours or of any Significant Subsidiary or for all or
           substantially all of our property and assets of or of any Significant
           Subsidiary or
 
       -  effects any general assignment for the benefit of creditors; or
 
        (I) the Pledge Agreement shall cease to be in full force and effect or
    enforceable in accordance with its terms, other than in accordance with its
    terms.
 
    If an Event of Default other than an Event of Default involving bankruptcy
or insolvency proceedings that occurs with respect to us, occurs and is
continuing under the Indenture, the Trustee or the holders of at least 25% in
aggregate principal amount of the Notes then outstanding, by written notice to
us (and to the Trustee if such notice is given by the holders), may, and the
Trustee at the request of such holders shall, declare the principal of, premium,
if any, and accrued interest on the Notes to be immediately due and payable.
Upon a declaration of acceleration, such principal of, premium, if any, and
accrued interest shall be immediately due and payable. In the event of a
declaration of acceleration because an Event of Default set forth in clause (E)
above has occurred and is continuing, such declaration of acceleration shall be
automatically rescinded and annulled if the event of default triggering such
Event of Default pursuant to clause (E) shall be remedied or cured by us or the
relevant Significant Subsidiary or waived by the holders of the relevant
Indebtedness within 60 days after the declaration of acceleration.
 
    If an Event of Default specified in clause (G) or (H) above occurs with
respect to us, the principal of, premium, if any, and accrued interest on the
Notes then outstanding shall automatically become and be
 
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immediately due and payable without any declaration or other act on the part of
the Trustee or any holder. At any time after declaration of acceleration, but
before a judgment or decree for the payment of the money due has been obtained
by the Trustee, the holders of at least a majority in principal amount of the
outstanding Notes by written notice to us and to the Trustee, may waive all past
defaults and rescind and annul a declaration of acceleration and its
consequences if:
 
    - all existing Events of Default, other than the nonpayment of the principal
      premium, if any, and interest on the Notes that have become due solely by
      such declaration of acceleration, have been cured or waived, and
 
    - the rescission would not conflict with any judgment or decree of a court
      of competent jurisdiction. For information as to the waiver of defaults,
      see "--Modification and Waiver."
 
    The holders of a majority in aggregate principal amount of the outstanding
Notes may direct the time, method and place of conducting any proceeding for any
remedy available to the Trustee or exercising any trust or power conferred on
the Trustee. However, the Trustee may refuse to follow any direction that
conflicts with law or the Indenture, that may involve the Trustee in personal
liability, or that the Trustee determines in good faith may be unduly
prejudicial to the rights of holders of Notes not joining in the giving of such
direction and may take any other action it deems proper that is not inconsistent
with any such direction received from holders of Notes. A holder may not pursue
any remedy with respect to the Indenture or the Notes unless:
 
    - the holder gives the Trustee written notice of a continuing Event of
      Default;
 
    - the holders of at least 25% in aggregate principal amount of outstanding
      Notes make a written request to the Trustee to pursue the remedy;
 
    - such holder or holders offer the Trustee indemnity satisfactory to the
      Trustee against any costs, liability or expense;
 
    - the Trustee does not comply with the request within 60 days after receipt
      of the request and the offer of indemnity; and
 
    - during such 60-day period, the holders of a majority in aggregate
      principal amount of the outstanding Notes do not give the Trustee a
      direction that is inconsistent with the request.
 
    However, such limitations do not apply to the right of any holder of a Note
to receive payment of the principal of, premium, if any, or interest on, such
Note or to bring suit for the enforcement of any such payment, on or after the
due date expressed in the Notes, which right shall not be impaired or affected
without the consent of the holder.
 
    The Indenture requires certain of our officers to certify, on or before a
date not more than 90 days after the end of each fiscal year, that a review has
been conducted of our activities and those of our Restricted Subsidiaries and
ours and our Restricted Subsidiaries' performance under the Indenture and that
we have fulfilled all obligations thereunder, or, if there has been a default in
the fulfillment of any such obligation, specifying each such default and the
nature and status thereof. We are also obligated to notify the Trustee of any
default or defaults in the performance of any covenants or agreements under the
Indenture.
 
CONSOLIDATION, MERGER AND SALE OF ASSETS
 
    We will not, in a single transaction or series of related transactions,
consolidate with, merge with or into, or sell, convey, transfer, lease or
otherwise dispose of all or substantially all of its property and assets to, any
Person unless:
 
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       (A) the resulting, surviving or transferee Person ("Successor Company")
    is a Person organized under the laws of the United States of America or any
    jurisdiction thereof and shall expressly assume all of our obligations on
    all of the Notes and under the Indenture;
 
        (B) immediately after giving effect to such transaction, no Default or
    Event of Default shall have occurred and be continuing;
 
        (C) immediately after giving effect to such transaction on a pro forma
    basis, the Successor Company shall have a Consolidated Net Worth equal to or
    greater than our Consolidated Net Worth immediately prior to such
    transaction;
 
       (D) immediately after giving effect to such transaction on a pro forma
    basis the Successor Company could Incur at least $1.00 of Indebtedness under
    the first paragraph of the "Limitation on Indebtedness" covenant. However,
    this clause does not apply to a consolidation or merger with or into a
    Wholly Owned Restricted Subsidiary with a positive net worth if no
    consideration (other than Common Stock in the surviving Person or us) is
    issued or distributed to the stockholders of the Company; and
 
        (E) We deliver to the Trustee an officers' certificate (attaching the
    arithmetic computations to demonstrate compliance with clauses (C) and (D))
    and opinion of counsel, in each case stating that such consolidation, merger
    or transfer and such supplemental indenture complies with this provision and
    that all conditions precedent provided for herein relating to such
    transaction have been complied with;
 
Clauses (C) and (D) above do not apply if the principal purpose of such
transaction is to change our state of incorporation.
 
DEFEASANCE
 
    DEFEASANCE AND DISCHARGE.  We will be deemed to have paid and will be
discharged from any and all obligations in respect of the Notes on the 123rd day
after the deposit referred to below, and the provisions of the Indenture will no
longer be in effect with respect to the Notes (except for certain obligations to
register the transfer or exchange of the Notes, to replace stolen, lost or
mutilated Notes, to maintain paying agencies and to hold monies for payment in
trust) if, among other things:
 
       (A) We have deposited with the Trustee money and/or U.S. Government
    Obligations that through the payment of interest and principal in respect
    thereof in accordance with their terms will provide money in an amount
    sufficient to pay the principal of, premium, and accrued interest on the
    Notes on the Stated Maturity of such payments in accordance with the terms
    of the Indenture and the Notes,
 
        (B) We have delivered to the Trustee:
 
           (1)   either an Opinion of Counsel to the effect that holders will
                 not recognize income, gain or loss for federal income tax
                 purposes as a result of our exercise of its option under this
                 "Defeasance" provision and will be subject to federal income
                 tax on the same amount and in the same manner and at the same
                 times as would have been the case if such deposit, defeasance
                 and discharge had not occurred, which Opinion of Counsel must
                 be based upon (and accompanied by a copy of) a ruling of the
                 Internal Revenue Service to the same effect unless there has
                 been a change in applicable federal income tax law after the
                 Closing Date such that a ruling is no longer required or
 
           (2)   a ruling directed to the Trustee received from the Internal
                 Revenue Service to the same effect as the aforementioned
                 opinion of counsel and
 
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           (3)   an Opinion of Counsel to the effect that the creation of the
                 defeasance trust does not violate the Investment Company Act of
                 1940 and after the passage of 123 days following the deposit
                 (except with respect to any trust funds for the account of any
                 Holder who may be deemed an "insider" for purposes of the
                 United States Bankruptcy Code, after one year following the
                 deposit) the trust funds will not be subject to the effect of
                 Section 547 of the United States Bankruptcy Code or Section 15
                 of the New York Debtor and Creditor Law,
 
        (C) immediately after giving effect to such deposit on a pro forma
    basis, no Default or Event of Default shall have occurred and be continuing
    on the date of such deposit or during the period ending on the 123rd day
    after the date of such deposit, and such deposit shall not result in a
    breach or violation of, or constitute a default under, any other agreement
    or instrument to which we or any of its Subsidiaries is a party or by which
    Dobson/Sygnet or any of its Subsidiaries is bound, and
 
       (D) if at such time the Notes are listed on a national securities
    exchange, we have delivered to the Trustee an Opinion of Counsel to the
    effect that the Notes will not be delisted as a result of such deposit,
    defeasance and discharge.
 
    DEFEASANCE OF CERTAIN COVENANTS AND CERTAIN EVENTS OF DEFAULT.  The
provisions of the Indenture will no longer be in effect with respect to clauses
(C) and (D) under "Consolidation, Merger and Sale of Assets" and all the
covenants described herein under "Covenants," clauses (C) and (D) under "Events
of Default" with respect to such clauses (C) and (D) under "Consolidation,
Merger and Sale of Assets" and such covenants and clauses (E) and (F) under
"Events of Default" shall be deemed not to be Events of Default, if
 
    - we deposit with the Trustee money and/or U.S. Government Obligations that
      through the payment of interest and principal in respect thereof in
      accordance with their terms will provide money in an amount sufficient to
      pay the principal of, premium and accrued interest on the Notes on the
      Stated Maturity of such payments in accordance with the terms of the
      Indenture and the Notes, the satisfaction of the provisions described in
      clauses (B)(1), (C) and (D) of the preceding paragraph, and
 
    - we deliver to the Trustee an Opinion of Counsel to the effect that, among
      other things, the Holders will not recognize income, gain or loss for
      federal income tax purposes as a result of such deposit and defeasance of
      certain covenants and Events of Default and will be subject to federal
      income tax on the same amount and in the same manner and at the same times
      as would have been the case if such deposit and defeasance had not
      occurred.
 
    DEFEASANCE AND CERTAIN OTHER EVENTS OF DEFAULT.  If we determine to omit
compliance with certain covenants and provisions of the Indenture with respect
to the Notes as described in the immediately preceding paragraphs and the Notes
are declared due and payable because of the occurrence of an Event of Default
that remains applicable, the amount of money and/or U.S. Government Obligations
on deposit with the Trustee will be sufficient to pay amounts due on the Notes
at the time of their Stated Maturity but may not be sufficient to pay amounts
due on the Notes at the time of the acceleration resulting from such Event of
Default. However, we will remain liable for such payments.
 
MODIFICATION AND WAIVER
 
    Modifications and amendments of the Indenture may be made by us and the
Trustee with the consent of the holders of not less than a majority in aggregate
principal amount of the outstanding Notes. However, no modification or amendment
may, without the consent of each holder affected thereby;
 
    - change the Stated Maturity of the principal of, or any installment of
      interest on, any Note,
 
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    - reduce the principal of, or premium, if any, or interest on, any Note,
 
    - change the place or currency of payment of principal of, or premium, if
      any, or interest on, any Note,
 
    - impair the right to institute suit for the enforcement of any payment on
      or after the Stated Maturity (or, in the case of a redemption, on or after
      the Redemption Date) of any Note,
 
    - reduce the above-stated percentage of outstanding Notes the consent of
      whose holders is necessary to modify or amend the Indenture,
 
    - waive a default in the payment of principal of, premium, if any, or
      interest on the Notes, or
 
    - reduce the percentage or aggregate principal amount of outstanding Notes
      the consent of whose holders is necessary for waiver of compliance with
      certain provisions of the Indenture or for waiver of certain defaults.
 
NO PERSONAL LIABILITY OF INCORPORATORS, STOCKHOLDERS, OFFICERS, DIRECTORS OR
  EMPLOYEES
 
    The Indenture provides that no recourse for the payment of the principal of,
premium, if any, or interest on any of the Notes or for any claim based thereon
or otherwise in respect thereof, and no recourse under or upon any obligation,
covenant or agreement of ours in the Escrow and Security Agreement, the
Indenture, or in any of the Notes or because of the creation of any Indebtedness
represented thereby, shall be had against any incorporator, stockholder,
officer, director, employee or controlling person of ours or of any successor
Person thereof. Each holder, by accepting the Notes, waives and releases all
such liability.
 
CONCERNING THE TRUSTEE
 
    The Indenture provides that, except during the continuance of a Default, the
Trustee will not be liable, except for the performance of such duties as are
specifically set forth in such Indenture. If an Event of Default has occurred
and is continuing, the Trustee will use the same degree of care and skill in its
exercise of the rights and powers vested in it under the Indenture as a prudent
person would exercise under the circumstances in the conduct of such person's
own affairs.
 
    The Indenture and provisions of the Trust Indenture Act of 1939 incorporated
by reference therein contain limitations on the rights of the Trustee, should it
become a creditor of us, to obtain payment of claims in certain cases or to
realize on certain property received by it in respect of any such claims, as
security or otherwise. The Trustee is permitted to engage in other transactions.
However, if the Trustee acquires any conflicting interest, it must eliminate
such conflict or resign.
 
BOOK-ENTRY, DELIVERY AND FORM
 
    Except as set forth herein, the Notes have been issued in the form of one or
more global notes. The global notes were deposited with, or on behalf of, The
Depository Trust Company (the "Depositary") and registered in the name of Cede &
Co., as nominee of the Depositary (such nominee being referred to herein as the
"Global Note Holder").
 
    Notes offered and sold in reliance on Regulation S were initially
represented by one or more permanent global notes in definitive, fully
registered form (the "Offshore Global Note") which were registered in the name
of the Global Note Holder and deposited on behalf of the purchasers of the Notes
represented thereby with a custodian for the Global Note Holder for credit to
the respective accounts of the purchasers (or to such other accounts as they may
direct) at the Euroclear System ("Euroclear") or Cedel Bank, societe anonyme
("Cedel Bank").
 
                                       98
<PAGE>
    Notes offered and sold to "Qualified Institutional Buyers" in reliance on
Rule 144A under the Securities Act will be represented by one or more permanent
global notes in definitive, fully registered form (the "U.S. Global Note" and
together with the Offshore Global Note, the "Global Notes") which will be
registered in the name of the Global Note Holder and deposited on behalf of the
purchasers of the Notes represented thereby with a custodian for the Global Note
Holder for credit to the respective accounts of the purchasers (or to such other
accounts as they may direct) at the Depositary.
 
    Notes that are transferred to institutional "accredited investors" who are
not "Qualified Institutional Buyers" (as such terms are defined under "Notice to
Investors" elsewhere herein ("Non-Global Purchasers")) or are issued as
described under "Certificated Notes" below, will be issued in registered,
definitive, certificated form (the "Certificated Notes"). Upon the transfer of
Certificated Notes to a Qualified Institutional Buyer or in an offshore
transaction under Regulation S, such Certificated Notes may, unless the Global
Note shall have previously been exchanged in whole for Certificated Notes, be
exchanged for an interest in a Global Note representing the principal amount of
the Notes being transferred upon delivery of appropriate certificates to the
Trustee.
 
    The Depositary is a limited-purpose trust company that was created to hold
securities for its participating organizations (collectively, the
"Participants") and to facilitate the clearance and settlement of transactions
in such securities between Participants through electronic book-entry changes in
accounts of its Participants. The Participants include securities brokers and
dealers (including the Initial Purchasers), banks and trust companies, clearing
corporations and certain other organizations. Access to the Depositary's system
is also available to other entities such as banks, brokers, dealers and trust
companies (collectively, the "Indirect Participants") that clear through or
maintain a custodial relationship with a Participant, either directly or
indirectly. Persons who are not Participants may beneficially own securities
held by or on behalf of the Depositary only through Participants or Indirect
Participants.
 
    We expect that pursuant to procedures established by the Depositary
 
    - upon deposit of the Global Notes, the Depositary will credit the accounts
      of Participants designated by the Initial Purchasers with portions of the
      principal amount of the Global Notes and
 
    - ownership of the Notes evidenced by the Global Notes will be shown on, and
      the transfer of ownership thereof will be effected only through, records
      maintained by the Depositary (with respect to the interests of the
      Participants), the Participants and the Indirect Participants.
 
    Prospective purchasers are advised that the laws of some states require that
certain persons take physical delivery in definitive form of securities that
they own. Consequently, the ability to own, transfer or pledge Notes evidenced
by the Global Notes will be limited to such extent. For certain other
restrictions on the transferability of the Notes, see "Notice to Investors."
 
    Investors may hold their interests in the Offshore Global Note directly
through Euroclear or Cedel Bank, if they are participants in such systems, or
indirectly through organizations that are participants in such systems.
Investors may also hold such interests through organizations other than
Euroclear or Cedel Bank that are Participants in the Depositary. Euroclear and
Cedel Bank will hold such interests in the Offshore Global Note on behalf of
their participants through customers' securities accounts in their respective
names on the books of their respective depositaries, which in turn will hold
such interests in the Offshore Global Note in customers' securities acocunts in
the depositaries' names on the books of the Depositary.
 
    So long as the Global Note Holder is the registered owner of any Notes, the
Global Note Holder will be considered the sole holder under the Indenture of any
Notes evidenced by the Global Note. Beneficial owners of Notes evidenced by the
Global Notes will not be considered the owners or holders thereof under the
Indenture for any purpose, including with respect to the giving of any
directions, instructions or approvals to the Trustee thereunder. Neither we nor
the Trustee will have any responsibility or liability for any aspect of the
records of the Depositary relating to the Notes.
 
                                       99
<PAGE>
    Payments in respect of the principal of, premium, if any, and interest on
any Notes registered in the name of the Global Note Holder on the applicable
record date will be payable by the Trustee to or at the direction of the Global
Note Holder in its capacity as the registered holder under the Indenture. Under
the terms of the Indenture, we and the Trustee may treat the persons in whose
names Notes, including the Global Notes, are registered as the owners thereof
for the purpose of receiving such payments. Consequently, neither we nor the
Trustee has or will have any responsibility or liability for the payment of such
amounts to beneficial owners of Notes. We believe, however, that it is currently
the policy of the Depositary to immediately credit the accounts of the relevant
Participants with such payments, in amounts proportionate to their respective
holdings of beneficial interests in the relevant security as shown on the
records of the Depositary. Payments by the Participants and Indirect
Participants to the beneficial owners of Notes will be governed by standing
instructions and customary practice and will be the responsibility of the
Participants and Indirect Participants.
 
    Transfers between Participants will be effected in accordance with the
Depositary's rules and will be settled in immediately available funds. If a
holder requires physical delivery of a Certificated Note for any reason,
including to sell Notes to persons in states which require physical delivery of
such securities or to pledge such securities, such holder must transfer its
interest in the Global Notes in accordance with the normal procedures of the
Depositary and in accordance with the procedures set forth in the Indenture.
 
    Transfers by an owner of a beneficial interest in the U.S. Global Note to a
transferee who takes delivery of such interest through the Offshore Global Note,
whether before, on or after the 40th day after the later of the commencement of
this offering and the Closing Date, will be made only upon receipt by the
Trustee of a certification to the effect that such transfer is being made in
accordance with Regulation S. Transfers of Certificated Notes to persons who
will hold through the U.S. Global Note or the Offshore Global Note will be
subject to certifications provided by the Trustee.
 
    CERTIFICATED NOTES
 
    Transferees of Notes who are not "Qualified Institutional Buyers" as defined
in Rule 144A under the Securities Act may hold Notes only in the form of
Certificated Notes. All such Certificated Notes would be subject to the legend
requirements described herein under "Notice to Investors."
 
    In addition, if
 
    - we notify the Trustee in writing that the Depositary is no longer willing
      or able to act as a depositary and the Company is unable to locate a
      qualified successor within 90 days, or
 
    - we, at our option, notifies the Trustee in writing that it elects to cause
      the issuance of Notes in the form of Certificated Notes under the
      Indenture
 
then, upon surrender by the Global Note Holder of the Global Notes, Certificated
Notes will be issued to each person that the Global Note Holder and the
Depositary identify as being the beneficial owner of the related Notes.
 
    Neither we nor the Trustee will be liable for any delay by the Global Note
Holder or the Depositary in identifying the beneficial owners of Notes and the
Company and the Trustee may conclusively rely on, and will be protected in
relying on, instructions from the Global Note Holder or the Depositary for all
purposes.
 
    SAME-DAY SETTLEMENT AND PAYMENT
 
    The Indenture requires that payments in respect of the Notes represented by
the Global Notes (including principal, premium, if any, and interest) be made by
wire transfer of immediately available funds to the accounts specified by the
Global Note Holder. With respect to Certificated Notes, we will make all
payments of principal, premium, if any, and interest by wire transfer of
immediately available funds to the
 
                                      100
<PAGE>
accounts specified by the Holders thereof or, if no such account is specified,
by mailing a check to each Holder's registered address. Notes represented by the
Global Notes are expected to be eligible to trade in the PORTAL market and to
trade in the Depositary's Same-Day Funds Settlement System, and any permitted
secondary market trading activity in such Notes will, therefore, be required by
the Depositary to be settled in immediately available funds. We expect that
secondary trading in the Certificated Notes will also be settled in immediately
available funds.
 
    Because of time zone differences, the securities account of a Euroclear or
Cedel Bank participant purchasing an interest in a Global Note from a
Participant in the Depositary will be credited, and any such crediting will be
reported to the relevant Euroclear or Cedel Bank participant, during the
securities settlement processing day (which must be a business day for Euroclear
or Cedel Bank) immediately following the settlement date of the Depositary. The
Depositary has advised the Company that cash received in Euroclear or Cedel Bank
as a result of sales of interests in a Global Note by or through a Euroclear or
Cedel Bank participant to a participant will be received with value on the
settlement date of the Depositary but will be available in the relevant
Euroclear or Cedel Bank cash account only as of the business day for Euroclear
or Cedel Bank following the Depositary's settlement date.
 
                                      101
<PAGE>
   
                     CERTAIN U.S. FEDERAL TAX CONSEQUENCES
    
 
   
    The following summary describes the material anticipated U.S. federal income
tax consequences of the purchase, ownership and disposition of the notes. Except
where noted, it deals only with notes held as capital assets within the meaning
of Section 1221 of the Internal Revenue Code of 1986, as amended (the "Code"),
by U.S. holders and does not deal with special situations, such as those of
dealers in securities or currencies, financial institutions, life insurance
companies, tax exempt organizations, persons holding notes as a part of a
hedging or conversion transaction or a straddle or U.S. holders whose
"functional currency" is not the U.S. dollar. Furthermore, our discussion below
is based upon the provisions of the Code and regulations, administrative and
judicial decisions as of this date. These authorities may be repealed, revoked
or modified with possible retroactive effect so as to result in U.S. federal
income tax consequences different from those we discuss below.
    
 
   
    YOU MAY WISH TO CONSULT YOUR TAX ADVISOR WITH RESPECT TO YOUR PARTICULAR TAX
SITUATION REGARDING THE FEDERAL, STATE, LOCAL AND FOREIGN TAX CONSEQUENCES OF
THE PURCHASE OWNERSHIP AND DISPOSITION OF THE NOTES.
    
 
THE NEW NOTES
 
   
    EXCHANGE FOR REGISTERED SECURITIES.  Your exchange of an old note for a new
note should not constitute a taxable exchange. Each new note should be treated
as having been originally issued at the time the old note was originally issued.
    
 
   
    STATED INTEREST.  You must include as ordinary interest income the interest
attributable to the notes at the time it accrues or is received, in accordance
with your accounting method for U.S. federal income tax purposes.
    
 
   
    ORIGINAL ISSUE DISCOUNT.  We did not issue the notes with original issue
discount for federal income tax purposes.
    
 
   
TAX CONSEQUENCES TO U.S. HOLDERS
    
 
   
    A "U.S. holder" means:
    
 
   
    - a beneficial owner that is a citizen or resident of the U.S.,
    
 
   
    - a corporation, partnership or other entity created or organized in or
      under the laws of the U.S. or any political subdivision,
    
 
   
    - an estate the income of which is subject to U.S. federal income taxation
      regardless of its source, or
    
 
   
    - a trust the administration of which is subject to the primary supervision
      of a court within the U.S. and for which one or more persons have the
      authority to control all substantial decisions. An individual may, subject
      to certain exceptions, be deemed to be a resident (as opposed to a non-
      resident alien) of the U.S. by virtue of being present in the U.S. on at
      least 31 days in the calendar year and for an aggregate of at least 183
      days during a three-year period ending in the current calendar year
      (counting for such purposes all of the days present in the current year,
      one-third of the days present in the immediately preceding year, and
      one-sixth of the days present in the second preceding year).
    
 
    A "Non-U.S. holder" is a holder that is not a U.S. holder.
 
TAXATION OF INTEREST ON THE NOTES
 
   
    If you are a U.S. holder, interest paid on the notes will be taxable as
ordinary interest income in accordance with your method of tax accounting. We
expect that the notes will not be issued with original issue discount within the
meaning of the Code.
    
 
                                      102
<PAGE>
MARKET DISCOUNT
 
   
    If you are a U.S. holder, and you acquire a note for an amount that is less
than its principal amount, the amount of the difference will be treated as
"market discount," unless the difference is less than a specified DE MINIMIS
amount. Under the market discount rules of the Code, you will be required to
treat any partial principal payment on, or any gain on the sale, exchange,
retirement or other disposition (including a gift) of, a note as ordinary income
to the extent of any accrued market discount that has not previously been
included in income. Market discount generally accrues on a straight-line basis
over the remaining term of the note, unless you elect to accrue market discount
on a constant interest method. You may not be allowed to deduct immediately all
or a portion of the interest expense on any indebtedness incurred or continued
to purchase or to carry such note.
    
 
   
    You may elect to include market discount in income currently as it accrues
(either on a straight-line basis or, if the U.S. holder so elects, on a
constant-yield basis), in which case the interest deduction deferral rule set
forth in the preceding paragraph will not apply. Such an election will apply to
all bonds you acquire on or after the first day of the first taxable year to
which such election applies and may be revoked only with the consent of the
Internal Revenue Service ("IRS").
    
 
AMORTIZABLE BOND PREMIUM
 
   
    A U.S. holder that purchases a note for an amount in excess of the principal
amount will be considered to have purchased the note at a "premium." You
generally may elect to amortize this premium over the remaining term of the note
on a constant yield method. The amount amortized in any year will be treated as
a reduction of your interest income from the note.
    
 
   
    Bond premium on a note held by a U.S. holder that does not make such an
election will decrease the gain or increase the loss otherwise recognized on
disposition of the note. The election to amortize bond premium on a constant
yield method, once made, applies to all debt obligations held or subsequently
acquired by the electing U.S. holder on or after the first day of the taxable
year to which the election applies and may not be revoked without the consent of
the IRS.
    
 
SALE, EXCHANGE OR REDEMPTION OF NOTES
 
   
    Upon the sale, exchange or redemption or retirement of a note, you will
recognize gain or loss equal to the difference between the amount realized upon
the redemption, sale, exchange or retirement and such U.S. holder's adjusted tax
basis of the note. Your tax basis in a note will, in general, be the U.S.
holder's cost, increased by any market discount previously included in income by
the U.S. holder with respect to the notes and reduced by any principal payments
on the notes and by any amounts deducted with respect to amortizable bond
premium. Such gain or loss will be capital gain or loss, except to the extent
discussed above.
    
 
    The Taxpayer Relief Act of 1997 includes substantial changes to the federal
taxation of capital gains recognized by certain noncorporate taxpayers, such as
individuals, including a 20% maximum tax rate for certain gains from the sale of
capital assets held for more than 18 months. The deduction of capital losses is
subject to certain limitations.
 
   
    The exchange of a note by a U.S. holder for an exchange note (as described
in "Description of the Notes-Registration Rights") should not constitute a
taxable exchange. A U.S. holder will have the same tax basis and holding period
in the exchange note as it did in the note.
    
 
INFORMATION REPORTING AND BACKUP WITHHOLDING
 
   
    In general, information reporting requirements will apply to certain
payments of principal and interest and to the proceeds of sales of notes made to
U.S. holders other than certain exempt recipients (such as corporations). A 31%
backup withholding tax will apply to such payments if the U.S. holder fails
    
 
                                      103
<PAGE>
    - to provide a taxpayer identification number ("TIN"),
 
    - furnishes an incorrect TIN,
 
    - is notified by the IRS that it has failed to properly report payments of
      interest and dividends or
 
    - under certain circumstances, fails to certify, under penalty of perjury,
      that it has furnished a correct TIN and has not been notified by the IRS
      that it is subject to backup withholding. In the case of interest paid
      after December 31, 1999, a U.S. holder generally will be subject to backup
      withholding at a 31% rate unless certain IRS certification procedures are
      complied with directly or through an intermediary.
 
   
    We will furnish annually to the IRS and to record holders of the notes
(other than with respect to certain exempt holders) information relating to the
stated interest paid or accrued during the calendar year.
    
 
   
    Any amounts withheld under the backup withholding rules generally will be
allowed as a refund or a credit against a U.S. holder's U.S. federal income tax
liability provided the required information is furnished to the IRS.
    
 
TAX CONSEQUENCES TO NON-U.S. HOLDERS
 
TAXATION OF INTEREST ON THE NOTES
 
   
    Subject to the discussion below concerning backup withholding, no
withholding of U.S. federal income tax will be required with respect to the
payment by us or any paying agent of principal or interest on a note owned by a
Non-U.S. holder, provided that the beneficial owner
    
 
    - does not actually or constructively own 10% or more of the total combined
      voting power of all classes of our stock entitled to vote within the
      meaning of Section 871(h)(3) of the Code and the regulations thereunder,
 
    - is not a controlled foreign corporation related, directly or indirectly,
      to the Company through stock ownership,
 
   
    - is not a bank whose receipt of interest on a note is described in Section
      881(c)(3)(A) of the Code and
    
 
   
    - satisfies the statement requirement (described generally below) set forth
      in Section 871(h) and Section 881(c) of the Code and the regulations
      thereunder. To satisfy this requirement, the beneficial owner of such
      note, or a financial institution holding the Note on behalf of such owner,
      must provide, in accordance with specified procedures, we or our paying
      agent with a statement to the effect that the beneficial owner is not a
      U.S. person. These requirements will be met if
    
 
    - the beneficial owner provides his name and address, and certifies, under
      penalties of perjury, that he is not a U.S. person (which certification
      may be made on an IRS Form W-8 (or successor form)) or
 
    - a financial institution holding the Note on behalf of the beneficial owner
      certifies, under penalties of perjury, that such statement has been
      received by it and furnishes a paying agent with a copy thereof.
 
   
    In the event that any of the above requirements are not satisfied, we will
nonetheless not withhold federal income tax on interest paid to a Non-U.S.
holder if it receives IRS Form 4224 (or, after December 31, 1999, a Form W-8)
from such Non-U.S. holder, establishing that such income is effectively
connected with the conduct of a trade or business in the U.S., unless we have
knowledge to the contrary. Interest or redemption premium paid to a Non-U.S.
holder that is effectively connected with the conduct by the holder of a trade
or business in the U.S. is generally taxed at the graduated rates that are
applicable
    
 
                                      104
<PAGE>
to U.S. holders. In the case of a Non-U.S. holder that is a corporation, such
effectively connected income may also be subject to the U.S. federal branch
profits tax (which is generally imposed on a foreign corporation on the deemed
repatriation from the U.S. of effectively connected earnings and profits) at a
30% rate (unless the rate is reduced or eliminated by an applicable income tax
treaty and the holder is a qualified resident of the treaty country).
 
SALE, EXCHANGE, OR REDEMPTION OF NOTES
 
   
    A Non-U.S. holder will generally not be subject to U.S. federal income tax
with respect to capital gain recognized on a sale, exchange, redemption or other
disposition of notes unless
    
 
    - the gain is effectively connected with a trade or business of the Non-U.S.
      holder in the U.S.,
 
    - in the case of a Non-U.S. holder who is an individual, such holder is
      present in the U.S. for 183 or more days in the taxable year of the sale
      or other disposition and certain other conditions are met, or
 
    - the Non-U.S. holder is subject to tax pursuant to certain provisions of
      the Code applicable to U.S. expatriates.
 
   
    Gains derived by a Non-U.S. holder from the sale or other disposition of
notes that are effectively connected with the conduct by the holder of a trade
or business in the U.S. are generally taxed at the graduated rates that are
applicable to U.S. holders. In the case of a Non-U.S. holder that is a
corporation, such effectively connected income may also be subject to the U.S.
branch profits tax (which is generally imposed on a foreign corporation on the
deemed repatriation from the United States of effectively connected earnings and
profits) at a 30% rate (unless the rate is reduced or eliminated by an
applicable income tax treaty and the holder is a qualified resident of the
treaty country).
    
 
FEDERAL ESTATE TAX
 
   
    A note beneficially owned by an individual who at the time of death is a
Non-U.S. holder will not be subject to U.S. federal estate tax as a result of
such individual's death, provided that such individual does not actually or
constructively own 10% or more of the total combined voting power of all classes
of stock of the Company entitled to vote within the meaning of Section 871(h)(3)
of the Code and provided that the interest payments with respect to the note
would not have been, if received at the time of the individual's death,
effectively connected with the conduct of a U.S. trade or business by such
individual.
    
 
INFORMATION REPORTING AND BACKUP WITHHOLDING
 
   
    No information reporting or backup withholding will be required with respect
to payments made by us or any paying agent to Non-U.S. holders if a statement
described in (iv) under "Tax Consequences to Non-U.S. Holders--Taxation of
Interest on the Notes" has been received and the payor does not have actual
knowledge that the beneficial owner is a U.S. person.
    
 
    Information reporting and backup withholding will not apply if payments of
interest on a Note are made outside the U.S. to an account maintained at an
office or branch of a U.S. or foreign bank or other financial institution,
provided certain procedures are in place and are observed.
 
   
    Payments on the sale, exchange or other disposition of a note made to or
through a foreign office of a broker generally will not be subject to backup
withholding. However, payments made by a broker that is a U.S. person, a
controlled foreign corporation for U.S. federal income tax purposes, a foreign
person 50% or more of whose gross income is effectively connected with a U.S.
trade or business for a specified three year period, or (with respect to
payments after December 31, 1999) a foreign partnership with certain connections
to the U.S., will be subject to information reporting unless the broker has in
its records documentary evidence that the beneficial owner is not a U.S. person
and certain other conditions are met,
    
 
                                      105
<PAGE>
or the beneficial owner otherwise establishes an exemption. Backup withholding
may apply to any payment that such broker is required to report if the broker
has actual knowledge that the payee is a U.S. person. Payments to or through the
U.S. office of a broker will be subject to information reporting and backup
withholding unless the holder certifies, under penalties of perjury, that it is
not a U.S. person or otherwise establishes an exemption.
 
    Non-U.S. holders should consult their tax advisors regarding the application
of information reporting and backup withholding in their particular situations,
the availability of an exemption therefrom, and the procedures for obtaining
such an exemption, if available. Any amounts withheld under the backup
withholding rules generally will be allowed as a refund or credit against the
Non-U.S. holder's U.S. federal income tax liability and may entitle such holder
to a refund, provided the required information is furnished to the IRS.
 
   
                              PLAN OF DISTRIBUTION
    
 
   
    There has previously been only a limited secondary market and no public
market for the old notes. We do not intend to apply for the listing of the notes
on a national securities exchange or for their quotation through The Nasdaq
Stock Market. The notes are eligible for trading in the PORTAL market. We have
been advised by the initial purchasers that the initial purchasers currently
intend to make a market in the notes; however, no initial purchaser is obligated
to do so and any market making may be discontinued by any initial purchaser at
any time. In addition, such market making activity may be limited during the
exchange offer. Therefore, we can give you no assurance that an active market
for the old notes or the new notes will develop. If a trading market does not
develop or is not maintained, holders of notes may experience difficulty in
reselling notes. If a trading market develops for the notes, future trading
prices of such securities will depend on many factors, including, among other
things, prevailing interest rates, our results of operations and the market for
similar securities. Depending on such factors, the Notes may trade at a discount
from their offering price.
    
 
   
    BROKER-DEALERS WHO DID NOT ACQUIRE OLD NOTES AS A RESULT OF MARKET MAKING
ACTIVITIES OR TRADING ACTIVITIES MAY NOT PARTICIPATE IN THE EXCHANGE OFFER.
    
 
   
    With respect to resale of new notes, based on an interpretation by the staff
of the SEC set forth in no-action letters issued to third parties we believe
that a holder (other than a person that is our affiliate within the meaning of
Rule 405 under the Securities Act or a "broker" or "dealer" registered under the
Exchange Act) who exchanges old notes for new notes in the ordinary course of
business and who is not participating, does not intend to participate, and has
no arrangement or understanding with any person to participate, in the
distribution of the New Notes, will be allowed to resell the new notes to the
public without further registration under the Securities Act and without
delivering to the purchasers of the new notes a prospectus that satisfies the
requirements of Section 10 thereof. However, if any holder acquires new notes in
the exchange offer for the purpose of distributing or participating in a
distribution of the new notes, such holder cannot rely on the position of the
staff of the SEC enunciated in EXXON CAPITAL HOLDINGS CORPORATION (available May
13, 1988) or similar no-action letters or any similar interpretive letters and
must comply with the registration and prospectus delivery requirements of the
Securities Act in connection with a secondary resale transaction, unless an
exemption from registration is otherwise available.
    
 
    As contemplated by the no-action letters mentioned above and the
Registration Rights Agreement, each holder accepting the exchange offer is
required to represent to us in the letter of transmittal that
 
   
    - the new notes are to be acquired by the holder in the ordinary course of
      business,
    
 
   
    - the holder is not engaging and does not intend to engage in the
      distribution of the new notes, and
    
 
   
    - the holder acknowledges that, if such holder participates in the exchange
      offer for the purpose of distributing the new notes, such holder must
      comply with the registration and prospectus delivery requirements of the
      Securities Act and cannot rely on the above no-action letters.
    
 
                                      106
<PAGE>
   
    Any broker or dealer registered under the Exchange Act (each a
"Broker-Dealer") who holds old notes that were acquired for its own account as a
result of market-making activities or other trading activities (other than old
notes acquired directly from us or our affiliate) may exchange such old notes
for new notes pursuant to the exchange offer, however, such Broker-Dealer may be
deemed an underwriter within the meaning of the Securities Act and, therefore,
must deliver a prospectus meeting the requirements of the Securities Act in
connection with any resales of the new notes received by it in the exchange
offer, which prospectus delivery requirement may be satisfied by the delivery by
such Broker-Dealer of this prospectus. We have agreed to cause the Exchange
Offer Registration Statement, of which this prospectus is a part, to remain
continuously effective for a period of 180 days, if required, from the Exchange
Date, and to make this prospectus, as amended or supplemented, available to any
such Broker-Dealer for use in connection with resales. Any Broker-Dealer
participating in the exchange offer will be required to acknowledge that it will
deliver a prospectus meeting the requirements of the Securities Act in
connection with any resales of new notes received by it in the exchange offer.
The delivery by a Broker-Dealer of a prospectus in connection with resales of
new notes shall not be deemed to be an admission by such Broker-Dealer that it
is an underwriter within the meaning of the Securities Act. We will not receive
any proceeds from any sale of new notes by a Broker-Dealer.
    
 
   
    New notes received by Broker-Dealers for their own account pursuant to the
exchange offer may be sold from time to time in one or more transactions in the
over-the-counter market, in negotiated transactions, through the writing of
options on the new notes or a combination of such methods of resale, at market
prices prevailing at the time of resale, at prices related to such prevailing
market prices or negotiated prices. Any such resale may be made directly to
purchasers or to or through brokers or dealers who may receive compensation in
the form of commissions or concessions from any such Broker-Dealer and/or the
purchasers of any such new notes.
    
 
   
                                 LEGAL MATTERS
    
 
   
    Certain legal matters with respect to the validity of the notes are being
passed upon for Dobson/ Sygnet by McAfee & Taft A Professional Corporation,
Oklahoma City, Oklahoma.
    
 
   
                                    EXPERTS
    
 
    Ernst & Young LLP, independent auditors, have audited the consolidated
financial statements of Sygnet Wireless, Inc., for the years ended December 31,
1996 and 1997 and for the period from January 1, 1998 through December 23, 1998,
and the combined financial statements of the Selected Systems of Horizon
Cellular Telephone Company, L.P. for the period from January 1, 1996 through
October 8, 1996 included elsewhere in this prospectus and registration statement
as set forth in their reports also included herein. These financial statements
are included herein in reliance on their reports given on their authority as
experts in accounting and auditing.
 
    The consolidated financial statements of Dobson/Sygnet Communications
Company, included in this prospectus and in the registration statement have been
audited by Arthur Andersen LLP, independent public accountants as indicated in
their report appearing herein in reliance upon the authority of said firm as
experts in giving said report.
 
                                      107
<PAGE>
   
                                 CERTAIN TERMS
    
 
    ALLTEL--ALLTEL Corporation and its affiliates.
 
    AMPS--Advanced Mobile Telephone Service.
 
    AT&T WIRELESS--AT&T Wireless Services, Inc. and its affiliates.
 
    BAM--Bell Atlantic Mobile.
 
    BELL ATLANTIC--Bell Atlantic Corporation.
 
    BTA--Basic Trading Area.
 
    CDMA--A digital technology that uses code division multiple access.
 
    CELLULAR ONE GROUP--The owner of the service mark "CELLULAR
ONE-Registered Trademark-".
 
    CGSA--Cellular Geographic Service Area.
 
    CHURN--The number of cellular subscriber cancellations per month as a
percentage of the weighted average total cellular subscribers during such
period.
 
    COMMUNICATIONS ACT--The Communications Act of 1934.
 
    CMRS--Commercial Mobile Radio Services.
 
    CTIA--Cellular Telecommunications Industry Association.
 
    DOBSON COMMUNICATIONS--Dobson Communications Corporation, the beneficial
owner of all of Dobson/Sygnet's outstanding Capital Stock.
 
    DOBSON/SYGNET--Dobson/Sygnet Communications Company, a wholly owned
subsidiary Dobson Communications Corporation.
 
    DOBSON/SYGNET OPERATING--Dobson/Sygnet Operating Company, a wholly owned
subsidiary of Dobson/ Sygnet Communications Company.
 
    DOBSON TOWER COMPANY--Dobson Tower Company, a wholly owned subsidiary of
Dobson Communications Corporation.
 
    EQUITY CONTRIBUTION--Equity investments in the Company aggregating $145.0
million made by Dobson Communications Corporation.
 
    ERICSSON--Telefonaktiebolaget LM Ericsson and its affiliates.
 
    ERIE ACQUISITION--Sygnet's 1995 acquisition of Erie Cellular Telephone
Company which owned the FCC license and the related system for the Erie,
Pennsylvania MSA.
 
    ESMR--Enhanced Specialized Mobile Radio.
 
    FOOTPRINT--The total system coverage area served under FCC license by a
given licensee.
 
    FRONTIER--Frontier Communications.
 
    GTE--GTE Corporation and its affiliates.
 
    HORIZON ACQUISITION--Sygnet's 1996 acquisition of the FCC licenses and
related systems for Pennsylvania 1 RSA, Pennsylvania 2 RSA, Pennsylvania 6 RSA,
Pennsylvania 7 RSA and New York 3 RSA.
 
    INITIAL PURCHASERS--NationsBanc Montgomery Securities LLC, Lehman Brothers,
Inc., First Union Capital Markets, a division of Wheat First Securities, Inc.
and TD Securities (USA) Inc.
 
    ITDS--International Telecommunications Data Services.
 
                                      108
<PAGE>
    MOTOROLA--Motorola, Inc.
 
    MSA--Metropolitan Statistical Area, an FCC-designated cellular regulatory
region. We may also refer to MSA as a "Market."
 
    MSS--Mobile Satellite Services.
 
    MTA--Major Trading Area.
 
    NACN--The North American Cellular Network.
 
    NEW BANK FACILITIES--A $430.0 million senior secured bank facility to
consist of a $50.0 million reducing revolving credit facility and $380.0 million
of term loan facilities to be provided to Dobson/Sygnet Operating by banks led
by NationsBank, N.A.
 
    NEXTEL--Nextel Communications, Inc.
 
    NORTHERN TELECOM--Northern Telecom, Inc.
 
    OKLAHOMA TELECOM ACT--Oklahoma Telecommunications Act of 1997.
 
    OMNIPOINT--Omnipoint Corporation.
 
    PCS--Personal Communications Services.
 
    PENETRATION--The total subscribers at the end of a period divided by total
population covered by the applicable FCC cellular licenses or authorizations.
 
    PENNSYLVANIA 2 ACQUISITION; PENNSYLVANIA 2--Sygnet's acquisition of the FCC
license for, and certain assets related to, Pennsylvania 2 RSA ("Pennsylvania
2").
 
    PLEDGED SECURITIES--A portfolio of approximately $67.7 million of U.S.
government securities we purchased with proceeds of the issuance of the Notes
that are pledged as security for the first six scheduled interest payments on
the Notes.
 
    RBOC--The five remaining of the seven original Regional Bell Operating
Companies established by the Department of Justice's 1982 breakup of the Bell
System.
 
   
    REGISTRATION RIGHTS AGREEMENT--Agreement dated December 23, 1998 among
Dobson/Sygnet, NationsBanc Montgomery Securities LLC, Lehman Brothers Inc.,
First Union Capital Markets, a division of Wheat First Securities, Inc. and TD
Securities (USA) Inc.
    
 
    RESALE--Resale by a provider of telecommunications services (such as a local
exchange carrier) of such services to other providers or carriers on a wholesale
or a retail basis.
 
    RSA--Rural Service Area, an FCC-designated cellular regulatory region. We
may also refer to an RSA as a "market."
 
    SBC--SBC Communications, Inc.
 
    SPRINT--Sprint Corporation and affiliated companies.
 
    SWBM--Southwestern Bell Mobile Systems, Inc.
 
    SWBT--Southwestern Bell Telephone Company.
 
    SYGNET--Sygnet Wireless, Inc. and its wholly owned subsidiary, Sygnet
Communications, Inc.
 
    SYGNET ACQUISITION--The merger of Dobson/Sygnet Operating Company into
Sygnet effective December 23, 1998.
 
    SYGNET BANK FACILITY--Sygnet's bank facility under which all outstanding
indebtedness ($199.0 million) was paid as part of the Sygnet Transactions.
 
                                      109
<PAGE>
    SYGNET FINANCING--The sale of the Old Shares, the Equity Investments, the
issuance and sale of the Dobson/Sygnet Notes, the establishment of and funding
under the New Credit Facilities, the repayment of Sygnet's credit facility, and
the purchase of Sygnet Notes in the Sygnet Tender Offer.
 
    SYGNET NOTE REPURCHASE--Sygnet's repurchase of all of its outstanding
11 1/2% Senior Notes due 2006.
 
    SYGNET TRANSACTIONS--The Equity Contribution, the New Bank Facilities, the
Pledged Securities, the Sygnet Bank Facility, the Sygnet Note Repurchase and the
Tower Sale Leaseback.
 
    SYSTEM--An FCC-licensed cellular telephone system.
 
    TDMA--A digital technology that uses time multiple access.
 
    TELECOMMUNICATIONS ACT--The Telecommunications Act of 1996.
 
    TEXAS 10 ACQUISITION; TEXAS 10--The Company's acquisition on December 2,
1998 of the FCC license for, and certain assets related to, the system for Texas
10 RSA ("Texas 10").
 
    TOWER SALE LEASEBACK--Sygnet's sale of substantially all of its owned
cellular towers for $25.0 million to Dobson Tower Company, a wholly owned
subsidiary of Dobson Communications Corporation, which leased the cellular
towers back to Sygnet.
 
    VANGUARD--Vanguard Cellular Systems, Inc.
 
                                      110
<PAGE>
   
                         INDEX TO FINANCIAL STATEMENTS
    
 
<TABLE>
<CAPTION>
                                                                                                               PAGE
                                                                                                             ---------
<S>                                                                                                          <C>
DOBSON/SYGNET COMMUNICATIONS COMPANY
 
  Report of independent public accountants.................................................................        F-2
 
  Consolidated balance sheet as of December 31, 1998.......................................................        F-3
 
  Consolidated statement of operations for the period from inception (July 23, 1998) through December 31,
    1998...................................................................................................        F-4
 
  Consolidated statement of stockholder's equity for the period from inception (July 23, 1998) through
    December 31, 1998......................................................................................        F-5
 
  Consolidated statement of cash flows for the period from inception (July 23, 1998) through December 31,
    1998...................................................................................................        F-6
 
  Notes to consolidated financial statements...............................................................        F-7
 
SYGNET WIRELESS, INC.
 
  Report of independent auditors...........................................................................       F-14
 
  Consolidated statements of operations for the years ended December 31, 1996 and 1997 and the period from
    January 1, 1998 through December 23, 1998..............................................................       F-15
 
  Consolidated statements of shareholders' equity (deficit) for the years ended December 31, 1996 and 1997
    and the period from January 1, 1998 through December 23, 1998..........................................       F-16
 
  Consolidated statements of cash flows for the years ended December 31, 1996 and 1997 and the period from
    January 1, 1998 through December 23, 1998..............................................................       F-17
 
  Notes to consolidated financial statements...............................................................       F-18
 
THE SELECTED SYSTEMS OF HORIZON CELLULAR TELEPHONE COMPANY, L.P.
 
  Report of independent auditors...........................................................................       F-26
 
  Combined statement of operations for the period from January 1, 1996 through October 8, 1996.............       F-27
 
  Combined statement of partners' equity for the period from January 1, 1996 through October 8, 1996.......       F-28
 
  Combined statement of cash flows for the period from January 1, 1996 through October 8, 1996.............       F-29
 
  Notes to combined financial statements...................................................................       F-30
</TABLE>
 
                                      F-1
<PAGE>
                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS
 
To the Board of Directors of
Dobson/Sygnet Communications Company:
 
    We have audited the accompanying consolidated balance sheet of Dobson/Sygnet
Communications Company (an Oklahoma corporation) and subsidiaries as of December
31, 1998, and the related consolidated statements of operations, stockholder's
equity and cash flows for the period from inception (July 23, 1998) through
December 31, 1998. These financial statements are the responsibility of the
Company's management. Our responsibility is to express an opinion on these
financial statements based on our audit.
 
    We conducted our audit 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 audit provides a reasonable basis for our opinion.
 
    In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of Dobson/Sygnet Communications
Company and subsidiaries as of December 31, 1998, and the results of their
operations and their cash flows for the period from inception through December
31, 1998, in conformity with generally accepted accounting principles.
 
                                          ARTHUR ANDERSEN LLP
 
OKLAHOMA CITY, OKLAHOMA,
 
  FEBRUARY 18, 1999
 
                                      F-2
<PAGE>
                      DOBSON/SYGNET COMMUNICATIONS COMPANY
 
                           CONSOLIDATED BALANCE SHEET
 
                               DECEMBER 31, 1998
 
<TABLE>
<S>                                                                             <C>
                                          ASSETS
CURRENT ASSETS:
  Cash and cash equivalents...................................................  $20,262,977
  Restricted cash and investments.............................................   20,781,187
  Accounts receivable.........................................................   13,125,357
  Inventory...................................................................    2,419,376
  Prepaid expenses and other..................................................    1,608,221
                                                                                -----------
      Total current assets....................................................   58,197,118
                                                                                -----------
PROPERTY, PLANT AND EQUIPMENT, net............................................   46,994,471
                                                                                -----------
OTHER ASSETS:
  Restricted investments......................................................   45,505,000
  Cellular license acquisition costs, net of accumulated amortization of
    $1,054,538................................................................  710,758,631
  Deferred financing costs, net of accumulated amortization of $101,025.......   49,346,454
  Customer list, net of accumulated amortization of $198,612..................   44,489,138
  Other.......................................................................    1,447,106
                                                                                -----------
      Total other assets......................................................  851,546,329
                                                                                -----------
      Total assets............................................................  $956,737,918
                                                                                -----------
                                                                                -----------
                           LIABILITIES AND STOCKHOLDER'S EQUITY
 
CURRENT LIABILITIES:
  Accounts payable--
    Trade.....................................................................  $ 2,075,441
    Affiliate.................................................................    3,990,363
  Accrued expenses............................................................   15,799,582
  Deferred revenue............................................................    2,437,021
                                                                                -----------
      Total current liabilities...............................................   24,302,407
                                                                                -----------
LONG-TERM DEBT................................................................  607,000,000
DEFERRED TAXES................................................................  181,499,173
STOCKHOLDER'S EQUITY:
  Common stock, $1.00 par value, 500 shares authorized and 100 shares issued
    and outstanding...........................................................          100
  Additional paid-in capital..................................................  145,000,000
  Retained deficit............................................................   (1,063,762)
                                                                                -----------
      Total stockholder's equity..............................................  143,936,338
                                                                                -----------
      Total liabilities and stockholder's deficit.............................  $956,737,918
                                                                                -----------
                                                                                -----------
</TABLE>
 
The accompanying notes are an integral part of this consolidated balance sheet.
 
                                      F-3
<PAGE>
                      DOBSON/SYGNET COMMUNICATIONS COMPANY
 
                      CONSOLIDATED STATEMENT OF OPERATIONS
 
    FOR THE PERIOD FROM INCEPTION (JULY 23, 1998) THROUGH DECEMBER 31, 1998
 
<TABLE>
<S>                                                                      <C>
OPERATING REVENUE:
  Service revenue......................................................  $1,563,266
  Roaming revenue......................................................     664,323
  Equipment sales......................................................     190,791
                                                                         ----------
    Total operating revenue............................................   2,418,380
                                                                         ----------
 
OPERATING EXPENSES:
  Cost of service......................................................     160,230
  Cost of equipment....................................................     369,146
  Marketing and selling................................................     463,853
  General and administrative...........................................     613,014
  Depreciation and amortization........................................   1,661,856
                                                                         ----------
    Total operating expenses...........................................   3,268,099
                                                                         ----------
 
OPERATING INCOME.......................................................    (849,719)
INTEREST EXPENSE.......................................................    (886,297)
OTHER INCOME, net......................................................      20,271
                                                                         ----------
LOSS BEFORE INCOME TAXES...............................................  (1,715,745)
INCOME TAX BENEFIT.....................................................     651,983
                                                                         ----------
NET LOSS...............................................................  $(1,063,762)
                                                                         ----------
                                                                         ----------
 
BASIC NET LOSS APPLICABLE TO COMMON STOCKHOLDER PER COMMON SHARE.......  $  (10,638)
                                                                         ----------
                                                                         ----------
BASIC WEIGHTED AVERAGE COMMON SHARES OUTSTANDING.......................         100
                                                                         ----------
                                                                         ----------
</TABLE>
 
   The accompanying notes are an integral part of this consolidated financial
                                   statement.
 
                                      F-4
<PAGE>
                      DOBSON/SYGNET COMMUNICATIONS COMPANY
 
                 CONSOLIDATED STATEMENT OF STOCKHOLDER'S EQUITY
    FOR THE PERIOD FROM INCEPTION (JULY 23, 1998) THROUGH DECEMBER 31, 1998
 
<TABLE>
<CAPTION>
                                                       COMMON STOCK                          RETAINED
                                                 ------------------------     PAID-IN        EARNINGS
                                                   SHARES       AMOUNT        CAPITAL        (DEFICIT)        TOTAL
                                                 -----------  -----------  --------------  -------------  --------------
<S>                                              <C>          <C>          <C>             <C>            <C>
INCEPTION (JULY 23, 1998)......................          --    $      --   $           --  $          --  $           --
  Issuance of common stock, at cost............         100          100               --             --             100
  Capital contribution.........................          --           --      145,000,000             --     145,000,000
  Net loss.....................................          --           --               --     (1,063,762)     (1,063,762)
                                                        ---        -----   --------------  -------------  --------------
DECEMBER 31, 1998..............................         100    $     100   $  145,000,000  $  (1,063,762) $  143,936,338
                                                        ---        -----   --------------  -------------  --------------
                                                        ---        -----   --------------  -------------  --------------
</TABLE>
 
   The accompanying notes are an integral part of this consolidated financial
                                   statement.
 
                                      F-5
<PAGE>
                      DOBSON/SYGNET COMMUNICATIONS COMPANY
 
                      CONSOLIDATED STATEMENT OF CASH FLOWS
 
    FOR THE PERIOD FROM INCEPTION (JULY 23, 1998) THROUGH DECEMBER 31, 1998
 
<TABLE>
<S>                                                                             <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
  Net loss from continuing operations.........................................  $ (1,063,762)
  Adjustments to reconcile net loss to net cash provided by operating
    activities--
    Depreciation and amortization.............................................     1,661,856
  Changes in current assets and liabilities--.................................
    Accounts receivable.......................................................      (908,119)
    Inventory.................................................................       369,146
    Prepaid expenses and other................................................    (1,329,143)
    Accounts payable..........................................................       (30,238)
    Accounts payable--affiliate...............................................     3,990,363
    Accrued expenses..........................................................     2,518,958
                                                                                ------------
      Net cash provided by operating activities...............................     5,209,061
                                                                                ------------
CASH FLOWS FROM INVESTING ACTIVITIES:
  Proceeds from sale of cellular towers.......................................    25,000,000
  Purchase of cellular licenses and properties................................  (615,865,412)
                                                                                ------------
      Net cash used in investing activities...................................  (590,865,412)
                                                                                ------------
CASH FLOWS FROM FINANCING ACTIVITIES:
  Proceeds from long-term debt................................................   607,000,000
  Purchase of restricted investments..........................................   (67,733,293)
  Proceeds from capital contribution..........................................   115,000,100
  Deferred financing costs....................................................   (48,347,479)
                                                                                ------------
      Net cash provided by financing activities...............................   605,919,328
                                                                                ------------
NET INCREASE IN CASH AND CASH EQUIVALENTS.....................................    20,262,977
CASH AND CASH EQUIVALENTS, beginning of year..................................            --
                                                                                ------------
CASH AND CASH EQUIVALENTS, end of year........................................  $ 20,262,977
                                                                                ------------
                                                                                ------------
SUPPLEMENTAL DISCLOSURES OF NONCASH INVESTING ACTIVITIES:
  Acquisition purchase price contributed by parent............................  $ 30,000,000
                                                                                ------------
                                                                                ------------
</TABLE>
 
   The accompanying notes are an integral part of this consolidated financial
                                   statement.
 
                                      F-6
<PAGE>
                      DOBSON/SYGNET COMMUNICATIONS COMPANY
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
1. ORGANIZATION:
 
    The Company was incorporated under the name Front Nine Holdings, Inc. as an
Oklahoma corporation on July 23, 1998. Subsequently, the Company changed its
name to Dobson/Sygnet Communications Company (the "Company") and amended its
certificate of incorporation on December 2, 1998 to reflect this change. The
Company is a wholly owned subsidiary of Dobson Communications Corporation
("Dobson Communications").
 
CAPITAL RESOURCES AND GROWTH
 
    The Company's total indebtedness and debt service requirements have
substantially increased as a result of the transactions described in Note 7 and
the Company will be subject to significant financial restrictions and
limitations. If the Company is unable to satisfy any of the covenants under the
credit facilities described in Note 4, including financial covenants, the
Company will be unable to borrow under the credit facilities during such time
period to fund planned capital expenditures, its ongoing operations or other
permissible uses.
 
    The Company's ability to manage future growth will depend upon its ability
to monitor operations, control costs, maintain effective quality controls and
significantly expand the Company's internal management, technical and accounting
systems, all of which will result in higher operating expenses. Any failure to
expand these areas and to implement and improve such systems, procedures and
controls in an efficient manner at a pace consistent with the growth of the
Company's business could have a material adverse effect on the Company's
business, financial condition and results of operations.
 
2. SIGNIFICANT ACCOUNTING POLICIES:
 
PRINCIPLES OF CONSOLIDATION
 
   
    The consolidated financial statements of the Company include the accounts of
all fully owned subsidiaries.
    
 
CASH AND CASH EQUIVALENTS
 
    Cash and cash equivalents on the accompanying consolidated balance sheet
includes cash and short-term investments with original maturities of three
months or less.
 
INVENTORY
 
    The Company values its inventory at the lower of cost or market on the
first-in, first-out method of accounting.
 
IMPAIRMENT OF LONG-LIVED ASSETS
 
   
    The Company assesses potential impairments of long-lived assets, certain
identifiable intangibles and goodwill when there is evidence that events or
changes in circumstances indicate that an asset's carrying value may not be
recoverable. An impairment loss is recognized when the sum of the expected
future net cash flows is less than the carrying amount of the asset, including
intangible assets. The amount of any recognized impairment would be based on the
estimated fair value of the asset subject to impairment compared to the carrying
amount of such asset. The fair value of intangible assets will be determined
based on the discounted cash flows of the market or markets to which the
intangible assets relate. No such losses have been identified by the Company.
    
 
    The ongoing value and remaining useful lives of intangible and other
long-term assets are subject to periodic evaluation and the Company currently
expects the carrying amounts to be fully recoverable. When
 
                                      F-7
<PAGE>
                      DOBSON/SYGNET COMMUNICATIONS COMPANY
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
2. SIGNIFICANT ACCOUNTING POLICIES: (CONTINUED)
events and circumstances indicate that intangible and other long-term assets
might be impaired, an undiscounted cash flow methodology would be used to
determine whether an impairment loss would be recognized.
 
CELLULAR LICENSE ACQUISITION COSTS
 
    Cellular license acquisition costs consist of amounts paid to acquire FCC
licenses to provide cellular services. Cellular license acquisition costs are
being amortized on a straight-line basis over fifteen years. Amortization
expense of $1,054,538 was recorded in 1998.
 
DEFERRED COSTS
 
    Deferred costs consist of fees incurred to secure long-term debt. Deferred
financing costs are being amortized on a straight-line basis over the term of
the debt of nine to ten years. Amortization expense related to these costs of
$101,025 was recorded in 1998.
 
CUSTOMER LIST
 
    Customer list acquisition costs are being amortized on a straight-line basis
over five years. Amortization expense of $198,612 was recorded in 1998.
 
ADVERTISING COSTS
 
    Advertising costs are expensed as incurred and are included as marketing and
selling expenses in the accompanying consolidated statement of operations.
 
INCOME TAXES
 
   
    The Company files a consolidated income tax return with its parent, Dobson
Communications. Income taxes are allocated among the various entities included
in the consolidated tax return, as agreed, based on the ratio of each entity's
taxable income (loss) to consolidated taxable income (loss). For financial
reporting purpose, the Company calculates its provision for income taxes on a
stand alone basis. Deferred income taxes reflect the estimated future tax
effects of differences between financial statement and tax bases of assets and
liabilities at year end.
    
 
REVENUE RECOGNITION
 
    The Company records service revenues over the period they are earned. The
cost of providing service is recognized as incurred.
 
    Airtime and toll revenue is billed in arrears. The Company accrued estimated
unbilled revenues for services provided of approximately $1,944,000 as of
December 31, 1998, which are included in accounts receivable in the accompanying
consolidated balance sheet. Monthly access charges are billed in advance and are
reflected as deferred revenue on the accompanying consolidated balance sheet.
Cellular equipment sales are recognized when the cellular equipment is delivered
to the customer. Subscriber acquisition costs (primarily commissions and loss on
equipment sales) are expensed as incurred.
 
EARNINGS PER SHARE
 
    Basic loss per common share is computed by the weighted average number of
shares of common stock outstanding during the year. There were no potentially
dilutive securities outstanding during 1998
 
                                      F-8
<PAGE>
                      DOBSON/SYGNET COMMUNICATIONS COMPANY
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
2. SIGNIFICANT ACCOUNTING POLICIES: (CONTINUED)
USE OF ESTIMATES
 
    The preparation of these consolidated financial statements in conformity
with generally accepted accounting principles requires management to make
estimates and assumptions that affect the amounts reported in the consolidated
financial statements and accompanying notes. Actual results could differ from
those estimates.
 
SIGNIFICANT CONCENTRATIONS
 
    In connection with providing cellular services to customers of other
cellular carriers, the Company has contractual agreements with those carriers
which provide for agreed-upon billing rates between the parties. Approximately
64% of the Company's cellular roaming revenue was earned from three cellular
carriers during the year ended December 31, 1998.
 
RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS
 
    In July 1998, the Financial Accounting Standards Board issued Statement of
Financial Accounting Standards No. 133, Derivatives and Hedging ("SFAS 133").
SFAS 133 establishes uniform hedge accounting criteria for all derivatives
requiring companies to formally document, designate and assess the effectiveness
of transactions that receive hedge accounting. Under SFAS 133, derivatives will
be recorded in the balance sheet as either an asset or liability measured at its
fair value, with changes in the fair value recognized as a component of
comprehensive income or in current earnings. SFAS 133 will be effective for
fiscal years beginning after June 15, 1999. The Company has not yet evaluated
the impact of adopting SFAS 133 and has not determined the timing or method of
adoption of SFAS 133.
 
3. PROPERTY, PLANT AND EQUIPMENT:
 
   
    Property, plant and equipment are recorded at cost. Newly constructed
cellular systems are added to property, plant and equipment at cost which
includes contracted services, direct labor, materials overhead and any
capitalized interest. For the years ended December 31, 1998, no interest was
capitalized. Existing property, plant and equipment purchased through
acquisitions is recorded at its fair value at the date of the purchase. Repairs,
minor replacements and maintenance are charged to operations as incurred. The
provisions for depreciation are provided using the straight-line method based on
the estimated useful lives of the various classes of depreciable property.
    
 
    Listed below are the major classes of property, plant and equipment and
their estimated useful lives, in years, as of December 31, 1998:
 
<TABLE>
<CAPTION>
                                                                    USEFUL LIFE
                                                                    -----------
<S>                                                                 <C>          <C>
Wireless systems and equipment....................................      2 - 10   $  29,128,020
Buildings and improvements........................................      5 - 40       8,724,903
Vehicles, aircraft and other work equipment.......................      3 - 10         305,430
Furniture and office equipment....................................      5 - 10       6,164,473
Plant under construction..........................................                   2,121,687
Land..............................................................                     857,639
                                                                                 -------------
  Property, plant and equipment...................................                  47,302,152
Accumulated depreciation..........................................                    (307,681)
                                                                                 -------------
  Property, plant and equipment, net..............................               $  46,994,471
                                                                                 -------------
                                                                                 -------------
</TABLE>
 
                                      F-9
<PAGE>
                      DOBSON/SYGNET COMMUNICATIONS COMPANY
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
4. LONG-TERM DEBT:
 
    The Company's long-term debt as of December 31, 1998, consisted of $407
million outstanding on the Company's credit facility and $200 million of Senior
Notes as described below.
 
CREDIT FACILITY
 
    On December 23, 1998, the Company obtained $430 million of financing
pursuant to senior secured credit facility ("Dobson/Sygnet Credit Facility")
from NationsBank, N.A., consisting of a $50 million reducing revolving credit
facility and $380 million of term loans. As of December 31, 1998, the Company
had $407 million outstanding at a weighted average interest rate of 8.9%. The
Company's obligations under the Dobson/Sygnet Credit Facility are secured by all
current and future assets of the Company. Initial proceeds were used primarily
to finance the Sygnet Acquisition described in Note 7. The Company expects to
use the remaining availability to finance capital expenditures and general
operations. The facility will terminate in 2007.
 
    The Dobson/Sygnet Credit Facility requires the Company to maintain certain
financial ratios. The failure to maintain such ratios would constitute an event
of default, notwithstanding the Company's ability to meet its debt service
obligations.
 
   
    Subsequent to the acquisition of Sygnet Wireless, Inc. in 1999, the Company
entered into an interest rate swap which has effectively fixed the interest on
$110 million of the principal outstanding on the Dobson/Sygnet Credit Facility
at 8.9%. The term of interest rate swap is 24 months. The Company accounts for
this as a hedge.
    
 
SENIOR NOTES
 
    On December 23, 1998, the Company issued $200 million of 12.25% Senior Notes
maturing in 2008 ("Dobson/Sygnet Senior Notes"). The net proceeds were used to
finance the Sygnet Acquisition described in Note 7 and to purchase securities
pledged to secure payment of the first six semi-annual interest payments on the
Dobson/Sygnet Senior Notes, which begin on June 15, 1999. The pledged securities
are reflected as restricted cash and investments in the Company's consolidated
balance sheet. The Dobson/ Sygnet Senior Notes are redeemable at the option of
the Company in whole or in part, on or after December 15, 2003, initially at
106.125%. Prior to December 15, 2001, the Company may redeem up to 35% of the
principal amount of the Dobson/Sygnet Senior Notes at 112.25% with proceeds from
equity offerings, provided that at least $130 million remains outstanding.
 
    Minimum future payments of long-term debt for years subsequent to December
31, 1998, are as follows:
 
<TABLE>
<S>                                                             <C>
1999..........................................................  $        --
2000..........................................................   20,350,000
2001..........................................................   30,525,000
2002..........................................................   30,525,000
2003..........................................................   50,875,000
2004 and thereafter...........................................  474,725,000
                                                                -----------
                                                                $607,000,000
                                                                -----------
                                                                -----------
</TABLE>
 
5. RESTRICTED CASH AND INVESTMENTS:
 
    Restricted cash and investments consist of interest pledge deposits for the
Dobson/Sygnet Senior Notes. The senior notes interest pledge deposit includes
the initial deposit of $67.7 million (as discussed in
 
                                      F-10
<PAGE>
                      DOBSON/SYGNET COMMUNICATIONS COMPANY
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
5. RESTRICTED CASH AND INVESTMENTS: (CONTINUED)
Note 4), net of interest earned. At December 31, 1998, the carrying value of
these investments exceeded the market value by approximately $253,000.
 
6. STOCKHOLDERS' EQUITY:
 
    On December 23, 1998, the Company received an equity contribution of $145
million from its parent company, Dobson Communications. This contribution was
used to finance the Sygnet Wireless, Inc. acquisition described in Note 7 below.
 
7. ACQUISITIONS:
 
RECENT ACQUISITION
 
   
    On December 23, 1998, the Company acquired Sygnet Wireless, Inc. for $337.5
million. At the date of the acquisition, Sygnet had $309 million of
indebtedness, which was immediately refinanced (See Note 4). Included in the
$337.5 million of purchase price was $30 million of Dobson Communications Class
F preferred stock issued to certain sellers of Sygnet Wireless, Inc. The newly
acquired Sygnet markets include cellular systems in Ohio, Pennsylvania and New
York covering an estimated population base of 2.4 million people.
    
 
   
    The purchase price was allocated as follows:
    
 
   
<TABLE>
<CAPTION>
                                                                               ($ IN THOUSAND)
<S>                                                                            <C>
Purchase price of Sygnet common stock........................................    $   337,500
Sygnet indebtedness assumed..................................................        309,000
                                                                               ---------------
  Total purchase price.......................................................    $   646,500
                                                                               ---------------
                                                                               ---------------
 
Current assets...............................................................    $    37,400
Property, plant and equipment................................................         47,000
Cellular license costs.......................................................        710,800
Other assets.................................................................         45,900
Current liabilities..........................................................        (13,100)
Deferred tax liabilities.....................................................       (181,500)
                                                                               ---------------
                                                                                 $   646,500
                                                                               ---------------
                                                                               ---------------
</TABLE>
    
 
   
    We are aware of no unresolved matters that will materially impact the
purchase price allocation.
    
 
   
    Concurrent with the acquisition of Sygnet Wireless, Inc. by the Company,
Dobson/Sygnet Operating Company was merged into Sygnet Wireless, Inc. This
merger was accounted for as a merger of entities under common control. Also
concurrent with the acquisition of Sygnet Wireless, Inc., the Company sold
substantially all of its cellular towers to an affiliate for $25 million (see
Note 10.).
    
 
    The acquisition of Sygnet Wireless, Inc. was accounted for as a purchase
and, accordingly, the results of operations have been included in the
accompanying consolidated statements of operations from the date of acquisition.
The unaudited pro forma information set forth below includes the acquisition as
if the purchase occurred at the beginning of each year. The unaudited pro forma
information is presented for
 
                                      F-11
<PAGE>
                      DOBSON/SYGNET COMMUNICATIONS COMPANY
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
7. ACQUISITIONS: (CONTINUED)
informational purposes only and is not necessarily indicative of the results of
operations that actually would have been achieved had the acquisition been
consummated at that time:
 
   
<TABLE>
<CAPTION>
                                                                           1998        1997
                                                                        ----------  ----------
                                                                            (UNAUDITED, IN
                                                                              THOUSANDS)
<S>                                                                     <C>         <C>
Operating revenue.....................................................  $  102,686  $   84,534
Net loss..............................................................     (54,446)    (60,936)
Net loss per common share.............................................        (544)       (609)
</TABLE>
    
 
PENDING ACQUISITION
 
    The Company is party to an agreement to purchase the Federal Communications
Corporation ("FCC") license for, and certain assets related to, Pennsylvania 2
RSA for $6.0 million (the "Pennsylvania 2 Acquisition"). Because the seller's
title to the license remains subject to administrative and judicial review, the
closing of such acquisition has been delayed. Pending such closing, the Company
is managing the operation of the cellular system in the market under the
supervision and control of the seller.
 
8. 401(K) PLAN:
 
    Effective on the date of the acquisition, December 23, 1998, the Company was
included with Dobson Communication's 401(k) plan.
 
9. TAXES:
 
   
    The provision (benefit) for income taxes for the year ended December 31,
1998, differs from amounts computed at the statutory rate as follows:
    
 
   
<TABLE>
<S>                                                                <C>
Income taxes at statutory rate (34%).............................  $(583,353)
State income taxes, net of Federal income tax effect.............    (68,630)
                                                                   ---------
                                                                   $(651,983)
                                                                   ---------
                                                                   ---------
</TABLE>
    
 
    The tax effects of the temporary differences which gave rise to deferred tax
assets and liabilities at December 31, 1998 was as follows:
 
   
<TABLE>
<S>                                                                     <C>
Current deferred income taxes:
  Allowance for doubtful accounts receivable..........................  $    193,040
  Accrued liabilities.................................................       484,120
                                                                        ------------
    Net current deferred income tax asset.............................       677,160
                                                                        ------------
Noncurrent deferred income taxes:
  Fixed assets........................................................     2,880,020
  Cellular license costs and other intangibles........................  (211,450,013)
  Tax credits and carryforwards.......................................    27,070,820
                                                                        ------------
    Net noncurrent deferred income tax asset (liability)..............  (181,499,173)
                                                                        ------------
    Total deferred income taxes.......................................  $(180,822,013)
                                                                        ------------
                                                                        ------------
</TABLE>
    
 
                                      F-12
<PAGE>
                      DOBSON/SYGNET COMMUNICATIONS COMPANY
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
9. TAXES: (CONTINUED)
   
    At December 31, 1998, the Company had NOL carryforwards of approximately $45
million, which may be utilized to reduce future Federal income taxes payable.
The Company's NOL carryforwards begin to expire in 2012.
    
 
10. RELATED PARTY TRANSACTIONS:
 
    At December 31, 1998, the Company had accounts payable--affiliate of
$3,990,363 primarily due to Dobson Communiations for current liabilities paid on
behalf of the Company.
 
   
    In connection with the Sygnet acquisition, the Company sold substantially
all of its cellular towers to an affiliate for $25 million. The Company will
lease these towers back from the affiliate for approximately $125,000 per month.
The term of the lease is month-to-month.
    
 
11. ACCRUED EXPENSES:
 
    Accrued expenses consist of the following at December 31:
 
<TABLE>
<S>                                                                      <C>
Sygnet acquisition costs (see Note 7)..................................  $5,439,095
Deferred financing costs...............................................   4,525,201
Property taxes.........................................................     938,043
Interest...............................................................     886,132
Vacation, wages and other..............................................   4,011,111
                                                                         ----------
  Total accrued expenses...............................................  $15,799,582
                                                                         ----------
                                                                         ----------
</TABLE>
 
12. COMMITMENTS:
 
    Future minimum lease payments required under operating leases that have an
initial or remaining noncancellable lease term in excess of one year at December
31, 1998, are as follows:
 
<TABLE>
<S>                                                               <C>
1999............................................................  $2,196,949
2000............................................................  1,788,084
2001............................................................  1,355,724
2002............................................................  1,014,291
2003............................................................    823,415
2004 and thereafter.............................................  8,550,129
</TABLE>
 
13. FAIR VALUE OF FINANCIAL INSTRUMENTS:
 
    Unless otherwise noted, the carrying value of the Company's financial
instruments approximates fair value. The Company estimates the fair value of its
long-term debt based on quoted market prices for publicly traded debt or on the
current rates available to the Company for debt with similar terms and remaining
maturation.
 
    Indicated below are the carrying amounts and estimated fair values of the
Company's financial instruments as of December 31, 1998:
 
<TABLE>
<CAPTION>
                                                                  CARRYING
                                                                   AMOUNT        FAIR VALUE
                                                               --------------  --------------
<S>                                                            <C>             <C>
Revolving credit facility....................................  $  430,000,000  $  430,000,000
Dobson/Sygnet Senior Notes...................................     200,000,000     205,000,000
</TABLE>
 
                                      F-13
<PAGE>
                         REPORT OF INDEPENDENT AUDITORS
 
The Board of Directors
Sygnet Wireless, Inc.
 
We have audited the accompanying consolidated statements of operations,
shareholders' equity (deficit), and cash flows of Sygnet Wireless, Inc. for the
years ended December 31, 1996 and 1997, and for the period from January 1, 1998
through December 23, 1998 (the date of the sale of the Company). These 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 consolidated financial statements referred to above present
fairly, in all material respects, the consolidated results of operations and
cash flows of Sygnet Wireless, Inc. for the years ended December 31, 1996 and
1997, and for the period from January 1, 1998 through December 23, 1998, in
conformity with generally accepted accounting principles.
 
                                          ERNST & YOUNG LLP
 
Cleveland, Ohio
February 5, 1999
 
                                      F-14
<PAGE>
                             SYGNET WIRELESS, INC.
 
                     CONSOLIDATED STATEMENTS OF OPERATIONS
 
<TABLE>
<CAPTION>
                                                                                                    PERIOD FROM
                                                                                                     JANUARY 1,
                                                                       YEAR ENDED DECEMBER 31,      1998 THROUGH
                                                                    -----------------------------   DECEMBER 23,
                                                                        1996            1997            1998
                                                                    -------------  --------------  --------------
<S>                                                                 <C>            <C>             <C>
Revenue:
  Subscriber revenue..............................................  $  31,784,883  $   55,153,827  $   64,785,498
  Roamer revenue..................................................      8,737,284      23,377,299      28,034,831
  Equipment sales.................................................      2,416,769       4,323,052       5,794,056
  Other revenue...................................................      1,607,245       1,679,412       1,653,264
                                                                    -------------  --------------  --------------
Total revenue.....................................................     44,546,181      84,533,590     100,267,649
 
Costs and expenses:
  Cost of services................................................      5,258,386       8,948,346       9,433,254
  Cost of equipment sales.........................................      5,816,144       9,663,151      10,443,870
  General and administrative......................................      9,852,004      16,975,592      19,796,012
  Selling and marketing...........................................      6,080,308      10,841,059      12,327,160
  Merger related costs (Note 2)...................................       --              --             1,883,952
  Depreciation and amortization...................................     10,038,439      28,718,937      27,497,687
                                                                    -------------  --------------  --------------
Total costs and expenses..........................................     37,045,281      75,147,085      81,381,935
                                                                    -------------  --------------  --------------
 
Income from operations............................................      7,500,900       9,386,505      18,885,714
 
Other:
  Interest expense................................................     11,173,688      29,901,678      27,895,156
  Merger related costs (Note 2)...................................       --              --             5,205,492
  Other expense, net..............................................        194,723         101,221         319,121
                                                                    -------------  --------------  --------------
Loss before extraordinary item....................................     (3,867,511)    (20,616,394)    (14,534,055)
Extraordinary loss on extinguishment of debt (Note 4).............     (1,420,864)       --              --
                                                                    -------------  --------------  --------------
Net loss..........................................................  $  (5,288,375) $  (20,616,394) $  (14,534,055)
                                                                    -------------  --------------  --------------
                                                                    -------------  --------------  --------------
</TABLE>
 
                            See accompanying notes.
 
                                      F-15
<PAGE>
                             SYGNET WIRELESS, INC.
           CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (DEFICIT)
<TABLE>
<CAPTION>
                                  WILCOM CORPORATION COMMON STOCK            SYGNET COMMUNICATIONS, INC. COMMON STOCK
                            --------------------------------------------  ----------------------------------------------
                                    TYPE A                 TYPE B                TYPE A                  TYPE B
                            ----------------------  --------------------  --------------------  ------------------------
                              SHARES      AMOUNT     SHARES     AMOUNT     SHARES     AMOUNT      SHARES       AMOUNT
                            -----------  ---------  ---------  ---------  ---------  ---------  -----------  -----------
<S>                         <C>          <C>        <C>        <C>        <C>        <C>        <C>          <C>          <C>
Balance as of January 1,
  1996....................         500   $  12,500      2,500  $  62,500    209,362  $ 209,362    1,046,801  $ 1,046,801
  Net loss................
  Dividends declared......
  Corporate merger........        (500)    (12,500)    (2,500)   (62,500)     4,360      4,360       21,800       21,800
  Retirement of treasury
    stock.................                                                   (8,024)                (40,173)
  Sygnet Wireless
    capitalization........                                                 (205,698)  (213,722)  (1,028,428)  (1,068,601)
  Capital contribution of
    S Corporation
    earnings..............
  Preferred stock
    dividend..............
  Accretion of preferred
    stock.................
  Exchange of common
    shares................
                            -----------  ---------  ---------  ---------  ---------  ---------  -----------  -----------
Balance as of December 31,
  1996....................      --          --         --         --         --         --          --           --
  Net loss................
  Preferred stock
    dividend..............
  Accretion of preferred
    stock.................
  Stock option
    compensation..........
  Excess of redemption
    price over carrying
    value of preferred
    stock.................
  Net proceeds from
    issuance of common
    shares to Boston
    Ventures..............
  Exchange of common
    shares................
                            -----------  ---------  ---------  ---------  ---------  ---------  -----------  -----------
Balance as of December 31,
  1997....................      --          --         --         --         --         --          --           --
Net loss..................
Exchange of common
  shares..................
                            -----------  ---------  ---------  ---------  ---------  ---------  -----------  -----------
Balance as of December 23,
  1998....................      --       $  --         --      $  --         --      $  --          --       $   --
                            -----------  ---------  ---------  ---------  ---------  ---------  -----------  -----------
                            -----------  ---------  ---------  ---------  ---------  ---------  -----------  -----------
 
<CAPTION>
 
                                          SYGNET WIRELESS, INC.
                            -------------------------------------------------                                            TREASURY
                                                                                                              NOTE         STOCK
                                    CLASS A                   CLASS B          ADDITIONAL     RETAINED     RECEIVABLE    ---------
                            ------------------------  -----------------------    PAID-IN      EARNINGS    FROM OFFICER/
                              SHARES       AMOUNT       SHARES      AMOUNT       CAPITAL     (DEFICIT)     SHAREHOLDER    SHARES
                            -----------  -----------  ----------  -----------  -----------  ------------  -------------  ---------
<S>                         <C>
Balance as of January 1,
  1996....................      --        $  --           --       $  --       $ 4,170,368  $    753,675   $  (249,952)     48,197
  Net loss................                                                                    (5,288,375)
  Dividends declared......                                                                      (261,625)
  Corporate merger........                                                          48,840
  Retirement of treasury
    stock.................                                                      (1,718,991)                                (48,197)
  Sygnet Wireless
    capitalization........                             6,170,630      61,706     1,220,617
  Capital contribution of
    S Corporation
    earnings..............                                                       2,809,405    (2,809,405)
  Preferred stock
    dividend..............                                                        (690,411)
  Accretion of preferred
    stock.................                                                         (27,617)
  Exchange of common
    shares................        2,653          27       (2,653)        (27)
                            -----------  -----------  ----------  -----------  -----------  ------------  -------------  ---------
Balance as of December 31,
  1996....................        2,653          27    6,167,977      61,679     5,812,211    (7,605,730)     (249,952)     --
  Net loss................                                                                   (20,616,394)
  Preferred stock
    dividend..............                                                      (1,149,040)
  Accretion of preferred
    stock.................                                                         (46,849)
  Stock option
    compensation..........                                                         306,000
  Excess of redemption
    price over carrying
    value of preferred
    stock.................                                                        (925,534)
  Net proceeds from
    issuance of common
    shares to Boston
    Ventures..............    3,000,000      30,000                             43,601,710
  Exchange of common
    shares................    1,008,000      10,080   (1,008,000)    (10,080)
                            -----------  -----------  ----------  -----------  -----------  ------------  -------------  ---------
Balance as of December 31,
  1997....................    4,010,653      40,107    5,159,977      51,599    47,598,498   (28,222,124)     (249,952)     --
Net loss..................                                                                   (14,534,055)
Exchange of common
  shares..................      731,893       7,319     (731,893)     (7,319)
                            -----------  -----------  ----------  -----------  -----------  ------------  -------------  ---------
Balance as of December 23,
  1998....................    4,742,546   $  47,426    4,428,084   $  44,280   $47,598,498  $(42,756,179)  $  (249,952)     --
                            -----------  -----------  ----------  -----------  -----------  ------------  -------------  ---------
                            -----------  -----------  ----------  -----------  -----------  ------------  -------------  ---------
 
<CAPTION>
 
                              AMOUNT
                            -----------
Balance as of January 1,
  1996....................  ($1,718,991)
  Net loss................
  Dividends declared......
  Corporate merger........
  Retirement of treasury
    stock.................    1,718,991
  Sygnet Wireless
    capitalization........
  Capital contribution of
    S Corporation
    earnings..............
  Preferred stock
    dividend..............
  Accretion of preferred
    stock.................
  Exchange of common
    shares................
                            -----------
Balance as of December 31,
  1996....................      --
  Net loss................
  Preferred stock
    dividend..............
  Accretion of preferred
    stock.................
  Stock option
    compensation..........
  Excess of redemption
    price over carrying
    value of preferred
    stock.................
  Net proceeds from
    issuance of common
    shares to Boston
    Ventures..............
  Exchange of common
    shares................
                            -----------
Balance as of December 31,
  1997....................      --
Net loss..................
Exchange of common
  shares..................
                            -----------
Balance as of December 23,
  1998....................  $   --
                            -----------
                            -----------
</TABLE>
 
                            See accompanying notes.
 
                                      F-16
<PAGE>
                             SYGNET WIRELESS, INC.
 
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
 
<TABLE>
<CAPTION>
                                                                                                    PERIOD FROM
                                                                                                     JANUARY 1,
                                                                      YEAR ENDED DECEMBER 31,         THROUGH
                                                                  -------------------------------   DECEMBER 23,
                                                                       1996             1997            1998
                                                                  ---------------  --------------  --------------
<S>                                                               <C>              <C>             <C>
OPERATING ACTIVITIES
Net loss........................................................  $    (5,288,375) $  (20,616,394) $  (14,534,055)
Adjustments to reconcile net loss to net cash
  provided by operating activities:
    Depreciation................................................        5,948,693      16,018,841      15,085,641
    Amortization................................................        4,089,746      12,700,096      12,412,046
    Compensation expense from issuance of stock options.........        --                306,000        --
    Loss on disposal of equipment...............................          177,633         102,955          96,128
    Extraordinary loss on extinguishment of debt................        1,420,864        --              --
    Changes in operating assets and liabilities:
      Accounts receivable.......................................         (184,315)     (1,854,599)     (1,526,182)
      Inventory.................................................         (287,900)       (170,493)       (921,077)
      Prepaid and deferred expenses.............................           28,649         232,548          30,380
      Accounts payable and accrued expenses.....................        2,424,406       2,866,653       3,494,470
      Accrued interest payable..................................        6,481,912        (190,868)     (3,366,590)
                                                                  ---------------  --------------  --------------
Net cash provided by operating activities.......................       14,811,313       9,394,739      10,770,761
 
INVESTING ACTIVITIES
Acquisitions of Horizon and Erie................................     (254,150,136)       (599,442)       --
Purchases of property and equipment.............................      (10,049,999)    (25,575,837)    (13,654,200)
Proceeds from sale of equipment.................................        --                405,995         444,500
                                                                  ---------------  --------------  --------------
Net cash used in investing activities...........................     (264,200,135)    (25,769,284)    (13,209,700)
 
FINANCING ACTIVITIES
Dividends paid..................................................         (261,625)       --              --
Proceeds from long-term debt....................................      320,750,000      30,500,000      21,800,000
Principal payments on long-term debt............................      (78,000,000)    (37,250,000)    (18,800,000)
Increase in financing costs.....................................      (10,290,097)        (65,376)       --
Net proceeds from issuance of preferred stock...................       19,000,000        --              --
Redemption of preferred stock...................................        --            (21,839,451)       --
Net proceeds from issuance of common stock......................        --             43,631,710        --
                                                                  ---------------  --------------  --------------
Net cash provided by financing activities.......................      251,198,278      14,976,883       3,000,000
                                                                  ---------------  --------------  --------------
Increase (decrease) in cash and cash equivalents................        1,809,456      (1,397,662)        561,061
Cash and cash equivalents at beginning of year..................          448,292       2,257,748         860,086
                                                                  ---------------  --------------  --------------
Cash and cash equivalents at end of year........................  $     2,257,748  $      860,086  $    1,421,147
                                                                  ---------------  --------------  --------------
                                                                  ---------------  --------------  --------------
</TABLE>
 
                            See accompanying notes.
 
                                      F-17
<PAGE>
                             SYGNET WIRELESS, INC.
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
            FOR THE YEARS ENDED DECEMBER 31, 1996 AND 1997, AND THE
             PERIOD FROM JANUARY 1, 1998 THROUGH DECEMBER 23, 1998
 
1. DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION
 
    These financial statements include the combined financial statements of
Sygnet Communications, Inc. (SYGNET) and Wilcom Corporation (Wilcom) through
August 31, 1996, the effective date of the merger described below and the
accounts of Sygnet Wireless, Inc. and its wholly-owned subsidiary Sygnet
Communications, Inc. (Sygnet) (hereinafter collectively referred to as the
"Company"). Intercompany balances and transactions have been eliminated in the
consolidated financial statements. The Company owns and operates in one segment,
cellular telephone systems, serving one large cluster with an approximate
population of 2.4 million in Northeastern Ohio, Western Pennsylvania and Western
New York.
 
    On August 19, 1996, the shareholders of SYGNET and Wilcom effected a
corporate restructuring whereby Wilcom was merged into SYGNET and shareholders
of Wilcom received 8.72 shares of SYGNET common stock for each share of Wilcom
common stock held as of August 31, 1996, the effective date of the merger.
Immediately prior to the merger, 90% of SYGNET's voting interests were owned by
the same individuals as 100% of Wilcom's voting interests. This merger was a
business combination between entities under common control whereby the assets
and liabilities so transferred were accounted for at historical cost in a manner
similar to that in pooling-of-interests accounting. Also, in conjunction with
this merger, the shareholders of SYGNET amended the articles of incorporation to
change SYGNET's name to Sygnet Wireless, Inc.
 
    Prior to the restructuring, SYGNET and Wilcom had been operating their
cellular business through three partnerships (Youngstown Cellular Telephone
Company [YCTC], Erie Cellular Telephone Company [Erie], and Wilcom Cellular) and
Sharon--Youngstown Cellular, Inc. (Sharon). As a result of the restructuring and
merger, Sharon was renamed Sygnet and is the wholly-owned subsidiary and
operating company of Sygnet Wireless, Inc. The existence of YCTC, Erie, and
Wilcom Cellular terminated on October 1, 1996 when all partnership interests
transferred to Sygnet.
 
2. SUBSEQUENT EVENT
 
    On December 23, 1998, a wholly-owned subsidiary of Dobson Communications
Corp. (Dobson), acquired all outstanding shares of Class A and B common stock
(including the granted options of the Company as described in Note 11) of the
Company for $337.5 million in cash. In connection with the purchase, the Notes
(as described in Note 5) were tendered for a total price of $1,181.61 for each
$1,000 in principal. The Bank Credit Facility (as described in Note 5) was
repaid and terminated. The Company incurred $7.1 million in merger costs
associated with this business combination. The merger costs included
approximately $4.8 million for an advisory fee and $0.4 million in legal and
accounting fees which are recorded as other non-operating expenses. In addition,
the Company incurred $1.9 million for related employee severance, retention and
stock option plans which are included in costs and expenses.
 
3. ACQUISITIONS
 
    On October 9, 1996, the Company acquired certain cellular licenses,
property, equipment, customer lists, current assets and current liabilities of
Horizon Cellular Telephone Company of Chautauqua L.P., Horizon Cellular
Telephone Company of Crawford L.P., and Horizon Cellular Telephone Company of
Indiana L.P. (hereinafter collectively referred to as "Horizon") for cash of
$252.9 million. The acquired
 
                                      F-18
<PAGE>
                             SYGNET WIRELESS, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
3. ACQUISITIONS (CONTINUED)
systems provide cellular service to an estimated population of 1.4 million in
contiguous markets in Western Pennsylvania and Western New York.
 
    On September 30, 1995, SYGNET, as a general partner, purchased 95.46% of
Erie for cash of $40.53 million. On November 30, 1995, Sharon purchased 4.54% of
Erie for $1.92 million, which was paid on February 12, 1996.
 
    The above transactions were accounted for as purchases and, accordingly, the
results of operations of the companies acquired have been included in the
consolidated financial statements since the date of acquisition.
 
    Cash paid for the acquisitions in 1996 is summarized below:
 
<TABLE>
<S>                                                             <C>
Current assets acquired.......................................  $ 3,613,696
Property and equipment........................................   18,986,400
Cellular licenses.............................................  207,223,616
Customer lists................................................   25,700,000
Current liabilities assumed...................................     (774,134)
                                                                -----------
Net assets acquired...........................................  254,749,578
Cash paid in 1997.............................................     (599,442)
                                                                -----------
Cash paid in 1996.............................................  $254,150,136
                                                                -----------
                                                                -----------
</TABLE>
 
4. SIGNIFICANT ACCOUNTING POLICIES
 
CASH EQUIVALENTS
 
    The Company considers all liquid investments with a maturity of three months
or less when purchased to be cash equivalents.
 
PROPERTY AND EQUIPMENT
 
    Property and equipment are recorded at cost and are depreciated over their
estimated useful lives (ranging from 2.5 to 19 years) calculated under the
straight-line or double declining balance methods.
 
INTANGIBLE ASSETS
 
CELLULAR LICENSES AND CUSTOMER LISTS
 
    The FCC issues licenses that enable cellular carriers to provide cellular
service in specific geographic areas. The FCC grants licenses for a term of up
to 10 years and generally grants renewals if the licensee has complied with its
obligations under the Communications Act of 1934. In 1993, the FCC adopted
specific standards to apply to cellular renewals, concluding it will award a
renewal to a cellular licensee that meets certain standards of past performance.
Historically, the FCC has granted license renewals routinely. The Company
believes that it has met, and will continue to meet all requirements necessary
to secure renewal of its cellular licenses.
 
                                      F-19
<PAGE>
                             SYGNET WIRELESS, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
4. SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
    The Company has acquired cellular licenses and customer lists through its
acquisition of interests in various cellular systems. The cost of licenses and
customer lists acquired was $231,003,426 in 1996. The Company uses a 40 year
useful life to amortize its licenses under the straight-line method. Purchased
cellular and paging customer lists are being amortized over 5 years under the
straight-line method. Amortization expense was $3,652,470 and $11,559,031 in
1996 and 1997, respectively, and $11,295,083 for the period from January 1
through December 23, 1998.
 
    The ongoing value and remaining useful lives of intangible and other
long-term assets are subject to periodic evaluation and the Company currently
expects the carrying amounts to be fully recoverable. When events and
circumstances indicate that intangible and other long-term assets might be
impaired, an undiscounted cash flow methodology would be used to determine
whether an impairment loss would be recognized. Measurement of the amount of the
impairment may be based on appraisal, market values of similar assets, or
estimated discounted cash flows reflecting the use and ultimate disposition of
the assets.
 
DEFERRED FINANCING COSTS
 
    Deferred financing costs are being amortized over the terms of the bank
credit facility and senior notes. Amortization expense was $437,276 and
$1,141,065 in 1996 and 1997, respectively, and $1,116,963 for the period from
January 1, 1998 through December 23, 1998. Upon entering into a new bank credit
facility in October 1996, an extraordinary loss of $1,420,864 was incurred to
write-off unamortized financing costs under the extinguished bank credit
agreement as described in Note 5.
 
REVENUE RECOGNITION
 
    The Company earns revenue primarily by providing cellular services to its
customers (Subscriber Revenue) and from the usage of its system by the customers
of other cellular carriers (Roamer Revenue). Access revenue for Subscriber
Revenue is billed one month in advance. Revenue is recognized as service is
rendered. Subscriber acquisition costs (primarily commissions and loss on
equipment sales) are expensed when incurred.
 
ADVERTISING COSTS
 
    Advertising costs are recorded as expense when incurred. Advertising expense
was $1,225,151 and $1,841,138 in 1996 and 1997, respectively, and $1,851,047 for
the period from January 1, 1998 through December 23, 1998.
 
STOCK COMPENSATION
 
    The Company accounts for its stock-based employee compensation arrangements
based on the intrinsic value of the equity instruments granted, as set forth in
APB Opinion No. 25, ACCOUNTING FOR STOCK ISSUED TO EMPLOYEES, and related
interpretations.
 
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. Actual
results may differ from those estimates.
 
                                      F-20
<PAGE>
                             SYGNET WIRELESS, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
4. SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)
SIGNIFICANT CONCENTRATIONS
 
    In connection with providing cellular services to customers of other
cellular carriers, the Company has contractual agreements with those carriers
which provide for agreed upon billing rates between the parties. Approximately
48%, 43% and 43% of the Company's Roamer Revenue was earned from two cellular
carriers in 1996 and 1997, and for the period from January 1, 1998 through
December 23, 1998, respectively.
 
FINANCIAL INSTRUMENTS
 
    Derivative financial instruments are used by the Company in the management
of interest rate exposure and are accounted for on an accrual basis. Income and
expense are recorded in the same category as that arising from the related
liability being hedged (i.e., adjustments to interest expense).
 
    The Company uses variable interest rate credit facilities to finance
acquisitions and operations of the Company. The Company may reduce its exposure
to fluctuations in interest rates by creating offsetting positions through the
use of derivative financial instruments. The Company does not use derivative
financial instruments for trading or speculative purposes, nor is the Company a
party to leveraged derivatives. The notional amount of interest rate swaps is
the underlying principal amount used in determining the interest payments
exchanged over the life of the swap. The notional amount is not a measure of the
Company's exposure through its use of derivatives.
 
    The Company may be exposed to credit loss in the event of nonperformance by
the counterparties to its interest rate swap agreements. The Company anticipates
the counterparties will be able to fully satisfy their obligations under the
agreements.
 
    In June 1998, the Financial Accounting Standards Board issued Statement No.
133, ACCOUNTING FOR DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES, which is
required to be adopted in years beginning after June 15, 1999. Because of the
Company's minimal use of derivatives, management does not anticipate that the
adoption of the new Statement will have a significant effect on earnings or the
financial position of the Company.
 
RECLASSIFICATION
 
    Certain 1996 and 1997 amounts have been reclassified to conform with 1998
presentation.
 
5. LONG-TERM DEBT
 
    On September 19, 1996, the Company issued $110,000,000 11 1/2% unsecured
Senior Notes due October 1, 2006 (the Notes). The Notes paid interest
semiannually on April 1 and October 1 of each year commencing April 1, 1997. The
Notes were redeemable at the option of the Company at redemption prices
(expressed as a percentage of principal amount) ranging from 105.75% in 2001 to
100.00% in 2005 and thereafter. Among other things, the Notes contain certain
covenants which limited additional indebtedness, payment of dividends, sale of
assets or stock, changes in control and transactions with related parties. The
proceeds from the Notes were used to repay amounts borrowed under a $75 million
bank credit agreement and to finance the acquisition of Horizon described in
Note 3. The notes were retired in connection with the sale of the Company
described in Note 2.
 
                                      F-21
<PAGE>
                             SYGNET WIRELESS, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
5. LONG-TERM DEBT (CONTINUED)
 
    On October 9, 1996, Sygnet entered into a new financing agreement (the Bank
Credit Facility) with a commercial bank group. The Bank Credit Facility was a
senior secured reducing revolver that provided Sygnet the ability to borrow up
to $300 million through June 30, 1999. Mandatory reductions in the revolver were
to occur quarterly thereafter through June 30, 2005, when the Bank Credit
Facility was to terminate. The Bank Credit Facility was secured by certain
assets and the stock of Sygnet. The Bank Credit Facility provided for various
borrowing rate options based on either a fixed spread over the London Interbank
Offered Rate (LIBOR) or the prime rate. Interest payments were made quarterly.
The Bank Credit Facility was retired in connection with the sale of the Company
described in Note 2.
 
    Among other things, the Bank Credit Facility contained financial covenants
which required the maintenance of debt service ratios and the hedging of
interest rate risk and limited distributions to shareholders and sales of
assets. In connection with these covenants, the Company has a three year
interest rate swap with a total underlying notional amount of $80 million. The
swap agreement converted the interest rate on $80 million notional amount of the
credit facility from a variable rate based upon a three month LIBOR (5.25% at
December 23, 1998) to fixed rates ranging from 5.79% to 6.03%. Amounts paid or
received under these agreements are recognized as adjustments to interest
expense.
 
    Interest paid was $4,691,776 and $30,076,031 in 1996 and 1997, respectively,
and $31,294,880 for the period from January 1, 1998 through December 23, 1998.
 
6. LEASES
 
    The Company has entered into various operating leases for land and office
facilities. Leases for tower sites provide for periodic extensions of lease
periods with future lease payments indexed to the consumer price index.
 
    Rent expense was $906,042 and $2,077,644 in 1996 and 1997, respectively, and
$2,411,310 for the period from January 1, 1998 through December 23, 1998.
 
7. RETIREMENT PLAN
 
    The Company sponsors a 401(k) retirement and profit sharing plan which
covers substantially all its employees. Eligible employees can contribute from
1% to 15% of their compensation. The Company, at its discretion, may match a
portion of the employee's contribution. The Company may also, at its discretion,
make additional profit sharing contributions to the plan. In connection with the
sale of Company described in Note 2, the Plan will be merged with the Dobson
401(k) plan. Total pension expense was $181,000 and $293,000 in 1996 and 1997,
respectively, and $356,747 for the period from January 1, 1998 through December
23, 1998.
 
8. REDEEMABLE PREFERRED STOCK AND WARRANTS
 
    On April 3, 1997, 100,000 shares of Series A Senior Cumulative Nonvoting
Preferred Stock (Preferred Stock) were redeemed by the Company at a cost of
$10,000,000 which was funded by the Bank Credit Facility. On June 20, 1997, the
remaining 118,394.51 shares of Preferred Stock were redeemed by the Company at a
cost of $11,839,451. This redemption was funded by the Common Stock Sale
described in Note 9.
 
                                      F-22
<PAGE>
                             SYGNET WIRELESS, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
8. REDEEMABLE PREFERRED STOCK AND WARRANTS (CONTINUED)
    The Preferred Stock had a redemption value of $100 per share and was
recorded at fair value on the date of issuance less issuance costs. Dividends
were cumulative from the date of issuance, accrued quarterly in arrears and were
payable in shares of Preferred Stock. The dividend rates increased annually from
15% in 1997 to 21% in 2000 and thereafter. As of December 31, 1996, the Company
accrued stock dividends in the amount of $690,411 (which represented 6,904
shares). The Preferred Stock included the potential issuance of warrants to
purchase shares of the Company's Class A Common Stock. No warrants were issued.
For financial reporting purposes, the excess of the redemption value of the
Preferred Stock over the carrying value was accreted by periodic charges to
additional paid-in capital over the life of the issue.
 
    The Company has authorized 5 million shares of Nonvoting Preferred Stock,
par value $.01 per share, of which 500,000 are designated as Series A Senior
Cumulative Nonvoting Preferred Stock.
 
    The Company has also authorized 10 million shares of Voting Preferred Stock,
par value $.01 per share, none of which are issued.
 
9. SHAREHOLDERS' EQUITY
 
    On June 20, 1997, the Company issued and sold 3,000,000 shares of Class A
Common Stock, $0.01 par value, to Boston Ventures Limited Partnership V (Boston
Ventures) at a price of $15 per share (Common Stock Sale). The proceeds of $43.6
million, net of issuance fees of $1.4 million, were used to redeem the remaining
outstanding Preferred Stock as described in Note 8 and to reduce amounts
outstanding under the Bank Credit Facility. As a condition of the Common Stock
Sale, Boston Ventures appointed two representatives on the Company's eleven
member board of directors.
 
    In August 1997, Boston Ventures purchased 1,000,000 shares of Class B Common
Stock from shareholders pursuant to a tender offer which upon purchase became
Class A Common Stock.
 
    On August 28, 1996, the Company approved a plan to recapitalize the Company
whereby the Sygnet common stock Type A (205,698 shares) and Type B (1,028,428
shares) were converted into 6,170,630 shares of Sygnet Wireless, Inc. Class B
common stock in a 5 for 1 split, effective September 20, 1996. These shares are
entitled to ten votes per share.
 
    Under the most restrictive of the covenants discussed in Note 5, the Company
could not declare any dividends on its common stock through December 23, 1998.
 
    On December 29, 1994, the Company received a promissory note from an
officer/shareholder for $249,952 for the purchase of common shares from a
shareholder. The note required annual payment of interest at 8.23% with
principal repayment commencing on December 31, 1998 through December 31, 2001.
The officer/shareholder repaid 100% of the note and interest accrued on December
29, 1998.
 
10. INCOME TAXES
 
    On August 31, 1996, Sygnet and Wilcom terminated their status as Subchapter
S Corporations. As a result of this termination, application of the provisions
of Statement of Financial Accounting Standards No. 109, ACCOUNTING FOR INCOME
TAXES, requires deferred income taxes to be provided for differences in the
basis for tax purposes and for financial accounting purposes of recorded assets
and liabilities. As a result of the termination of their Subchapter S
Corporation status, SYGNET and Wilcom contributed their undistributed earnings
to additional paid-in capital. At December 23, 1998, the Company has net
deferred
 
                                      F-23
<PAGE>
                             SYGNET WIRELESS, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
10. INCOME TAXES (CONTINUED)
tax assets of $37.0 million which includes net operating loss carryforwards of
$45.2 million that expire in 2012 and 2013. For financial reporting purposes, a
valuation allowance of $12.6 million has been recognized to offset the net
deferred tax assets related primarily to the net operating loss carryforwards.
 
    The components of the income tax provision (benefit) in the consolidated
statements of operations for the years ended December 31, 1996 and 1997, and for
the period January 1, 1998 through December 23, 1998, are as follows:
 
<TABLE>
<CAPTION>
                                                       1996           1997           1998
                                                   -------------  -------------  -------------
<S>                                                <C>            <C>            <C>
Cumulative effect of conversion from S to C
  corporation status.............................  $     745,000  $    --        $    --
Deferred income tax (benefit)....................     (1,898,500)    (6,697,800)    (4,782,900)
Valuation allowance..............................      1,153,500      6,697,800      4,782,900
                                                   -------------  -------------  -------------
Total provision for income tax (benefit).........  $    --        $    --        $    --
                                                   -------------  -------------  -------------
                                                   -------------  -------------  -------------
</TABLE>
 
11. STOCK OPTION PLAN
 
    The Company has stock option plans that provide for the purchase of Class A
common stock by employees and directors of the Company. Under the stock option
plans, the Company is authorized to issue 1,250,000 options for the purchase of
shares of Class A common stock (1,000,000 for employees and 250,000 for
non-employee directors). These options vest over a period ranging from grant
date to five years, are exercisable based upon the terms of the grants and
expire at the end of ten years. The Company applies APB Opinion No. 25,
ACCOUNTING FOR STOCK ISSUED TO EMPLOYEES, and related interpretations in
accounting for the plan, which requires that for certain options granted, the
Company recognizes as compensation expense the excess of the fair value for
accounting purposes of the common stock over the exercise price of the options.
For the majority of options, no compensation cost has been recognized. Had stock
compensation plans been determined based on the fair value at the grant dates
for awards under those plans consistent with the method of SFAS No. 123,
ACCOUNTING FOR STOCK-BASED COMPENSATION, the Company's net loss would have
increased by $24,000 and $625,000 from the amounts reported in 1996 and 1997,
respectively, and $419,000 from the amounts reported for the period from January
1, 1998 through December 23, 1998.
 
    For pro forma calculations, the fair value of each option is estimated on
the date of grant using the Minimum Value option-pricing model with the
following weighted-average assumptions used for grants in 1996, 1997 and 1998:
risk-free interest rates ranging from 6.9% to 5.9% and average expected lives
ranging from 5.0 to 7.5 years for issued options.
 
                                      F-24
<PAGE>
                             SYGNET WIRELESS, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
11. STOCK OPTION PLAN (CONTINUED)
    A summary of the status of the Company's stock option plan as of December
31, 1996 and 1997, and December 23, 1998, and changes during the periods then
ended is presented below:
 
<TABLE>
<CAPTION>
                                                           1996                    1997                    1998
                                                  ----------------------  ----------------------  ----------------------
                                                              WEIGHTED                WEIGHTED                WEIGHTED
                                                              -AVERAGE                -AVERAGE                -AVERAGE
                                                              EXERCISE                EXERCISE                EXERCISE
                                                   SHARES       PRICE      SHARES       PRICE      SHARES       PRICE
                                                  ---------  -----------  ---------  -----------  ---------  -----------
<S>                                               <C>        <C>          <C>        <C>          <C>        <C>
Outstanding at beginning of year................         --   $      --     533,200   $   10.00     716,200   $   10.08
Granted.........................................    533,200       10.00     183,000       10.31     210,500       18.03
Exercised.......................................         --          --          --          --          --          --
Canceled........................................         --          --          --          --      (1,000)      20.00
                                                  ---------  -----------  ---------  -----------  ---------  -----------
Outstanding at year end.........................    533,200   $   10.00     716,200   $   10.08     925,700   $   11.88
                                                  ---------  -----------  ---------  -----------  ---------  -----------
                                                  ---------  -----------  ---------  -----------  ---------  -----------
Options exercisable at year end.................         --                 651,200                 815,700
                                                  ---------               ---------               ---------
                                                  ---------               ---------               ---------
Weighted-average fair value of options granted
  during the year...............................  $      --               $    7.80               $    1.65
                                                  ---------               ---------               ---------
                                                  ---------               ---------               ---------
Weighted-average remaining contractual life.....       9.68                    8.87                    8.71
                                                  ---------               ---------               ---------
                                                  ---------               ---------               ---------
</TABLE>
 
    At December 23, 1998, there were 324,300 options available for future grant.
 
12. COMMITMENTS
 
    On June 8, 1998, the Company entered into an agreement with Pinellas
Communications to purchase the license to operate a cellular telephone system in
the Rural Service Area PA-2. The purchase price is $6 million and the
transaction is expected to close in the first quarter of 1999.
 
                                      F-25
<PAGE>
                         REPORT OF INDEPENDENT AUDITORS
 
The Board of Horizon, G.P., Inc.
 
    We have audited the accompanying combined statements of operations,
partners' equity and cash flows of Selected Systems of Horizon Cellular
Telephone Company, L.P., representing certain majority-owned subsidiaries of
Horizon Cellular Telephone Company, L.P., for the period from January 1, 1996
through October 8, 1996. These financial statements are the responsibility of
the Company's management. Our responsibility is to express an opinion on these
financial statements based on our audit.
 
    We conducted our audit 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 audit provides a reasonable basis for our opinion.
 
    In our opinion, the financial statements referred to above present fairly,
in all material respects, the combined results of operations and cash flows of
Selected Systems of Horizon Cellular Telephone Company, L.P. for the period from
January 1, 1996 through October 8, 1996, in conformity with generally accepted
accounting principles.
 
                                          ERNST & YOUNG LLP
 
Cleveland, Ohio
December 20, 1996
 
                                      F-26
<PAGE>
                              SELECTED SYSTEMS OF
                    HORIZON CELLULAR TELEPHONE COMPANY, L.P.
 
                        COMBINED STATEMENT OF OPERATIONS
 
              PERIOD FROM JANUARY 1, 1996 THROUGH OCTOBER 8, 1996
 
<TABLE>
<S>                                                                              <C>
Revenue and sales:
  Subscriber revenue...........................................................  $12,651,054
  Roaming revenue..............................................................  11,137,825
  Equipment sales..............................................................   1,429,841
                                                                                 ----------
Total revenue and sales........................................................  25,218,720
 
Costs and expenses:
  Cost of services.............................................................   2,913,874
  Cost of equipment sales......................................................   2,846,019
  General and administrative expenses..........................................   4,095,455
  Selling......................................................................   3,605,554
  Depreciation and amortization................................................   6,093,964
                                                                                 ----------
                                                                                 19,554,866
                                                                                 ----------
Income from operations.........................................................   5,663,854
Interest expense--affiliate....................................................   2,680,384
                                                                                 ----------
Net income.....................................................................  $2,983,470
                                                                                 ----------
                                                                                 ----------
</TABLE>
 
                            See accompanying notes.
 
                                      F-27
<PAGE>
                              SELECTED SYSTEMS OF
                    HORIZON CELLULAR TELEPHONE COMPANY, L.P.
 
                     COMBINED STATEMENT OF PARTNERS' EQUITY
 
              PERIOD FROM JANUARY 1, 1996 THROUGH OCTOBER 8, 1996
 
<TABLE>
<CAPTION>
                                                                          HORIZON
                                                                         CELLULAR
                                                                         TELEPHONE
                                                                       COMPANY, L.P.  KCCGP, L.P.       TOTAL
                                                                       -------------  ------------  -------------
<S>                                                                    <C>            <C>           <C>
Combined partners' equity at January 1, 1996.........................  $  79,973,645  $  1,290,023  $  81,263,668
Net income...........................................................      2,953,635        29,835      2,983,470
                                                                       -------------  ------------  -------------
Combined partners' equity at October 8, 1996.........................  $  82,927,280  $  1,319,858  $  84,247,138
                                                                       -------------  ------------  -------------
                                                                       -------------  ------------  -------------
</TABLE>
 
                            See accompanying notes.
 
                                      F-28
<PAGE>
                              SELECTED SYSTEMS OF
 
                    HORIZON CELLULAR TELEPHONE COMPANY, L.P.
 
                        COMBINED STATEMENT OF CASH FLOWS
 
              PERIOD FROM JANUARY 1, 1996 THROUGH OCTOBER 8, 1996
 
<TABLE>
<S>                                                                              <C>
OPERATING ACTIVITIES
Net income.....................................................................  $2,983,470
Adjustments to reconcile net income to net cash provided by operating
  activities:
  Depreciation and amortization................................................   6,093,964
  Changes in operating assets and liabilities:
    Accounts receivable........................................................      (2,153)
    Inventory..................................................................      40,483
    Prepaid expenses...........................................................     (22,008)
    Accounts payable and accrued expenses......................................   3,761,149
    Deferred revenue...........................................................     (84,419)
                                                                                 ----------
Net cash provided by operating activities......................................  12,770,486
 
INVESTING ACTIVITIES
Purchases of property and equipment............................................  (3,322,760)
                                                                                 ----------
Cash used in investing activities..............................................  (3,322,760)
 
FINANCING ACTIVITIES
Repayments of advances to affiliates...........................................  (8,654,534)
                                                                                 ----------
Cash used in financing activities..............................................  (8,654,534)
                                                                                 ----------
Increase in cash...............................................................     793,192
Cash at beginning of period....................................................     629,874
                                                                                 ----------
Cash at end of period..........................................................  $1,423,066
                                                                                 ----------
                                                                                 ----------
</TABLE>
 
                            See accompanying notes.
 
                                      F-29
<PAGE>
                              SELECTED SYSTEMS OF
                    HORIZON CELLULAR TELEPHONE COMPANY, L.P.
                     NOTES TO COMBINED FINANCIAL STATEMENTS
          FOR THE PERIOD FROM JANUARY 1, 1996 THROUGH OCTOBER 8, 1996
 
1. BASIS OF PRESENTATION AND DESCRIPTION OF BUSINESS
 
    The accompanying combined financial statements reflect the combined results
of operations and cash flows of Horizon Cellular Telephone Company of Lawrence,
L.P. ("Lawrence"), Horizon Cellular Telephone Company of Crawford, L.P.
("Crawford"), Horizon Cellular Telephone Company of Chautauqua, L.P.
("Chautauqua") and Horizon Cellular Telephone Company of Indiana, L.P.
("Indiana") (collectively referred to as "Selected Systems" or "the Company")
for the period from January 1, 1996 through October 8, 1996 (the "1996 Period").
Effective at the close of business on October 8, 1996, the Selected Systems were
acquired by SYGNET Communications Inc. ("SYGNET"). The combined financial
statements do not reflect either the estimated gain, or any expenses incurred or
expected to be incurred related to the sale of the Selected Systems. Each of the
operating systems is a limited partnership in which KCCGP, L.P. ("KCCGP") is the
managing and sole general partner and Horizon Cellular Telephone Company, L.P.
("HCTC") is the sole limited partner.
 
    The Selected Systems own, design, develop and operate cellular
communications systems. KCCGP performs certain administrative functions for the
Selected Systems and, accordingly, certain expenses of KCCGP (see Note 6) have
been allocated to the Selected Systems on a basis which, in the opinion of
management, is reasonable. However, such expenditures are not necessarily
indicative of, and it is not practicable for management to estimate, the nature
and level of expenses which might have been incurred had the systems been
operating as separate independent companies.
 
2. ALLOCATION OF PROFITS AND LOSSES
 
    Net income or loss is allocated to the partners in proportion to their
respective percentage interest during the period. The partners' percentage
interests at October 8, 1996, prior to the sale of the selected systems to
SYGNET, were as follows:
 
<TABLE>
<CAPTION>
<S>                                                                                      <C>
Horizon Cellular Telephone Company, L.P................................................        99%
KCCGP, LP..............................................................................         1%
</TABLE>
 
    Subject to a majority vote of the partners, contributions to capital are
made to fund the Partnership's capital expenditures and operating losses. Should
a partner not make all or a portion of a required contribution, that partner's
interest is subject to dilution as determined by the partnership agreement.
 
3. ACCOUNTING POLICIES
 
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.
 
INVENTORY
 
    Inventory consisting of merchandise purchased for resale is stated at the
lower of cost or market determined by the first-in first-out (FIFO) method.
 
                                      F-30
<PAGE>
                              SELECTED SYSTEMS OF
                    HORIZON CELLULAR TELEPHONE COMPANY, L.P.
               NOTES TO COMBINED FINANCIAL STATEMENTS (CONTINUED)
 
3. ACCOUNTING POLICIES (CONTINUED)
PROPERTY AND EQUIPMENT
 
    Property and equipment are stated at cost and are depreciated over their
estimated useful lives (three to twelve years) using the straight-line method.
 
    Depreciation expense amounted to approximately $2,673,000 for the 1996
Period.
 
LICENSES
 
    Licenses primarily represent the acquisition costs of the Operating
Licenses. Such costs are being amortized over a period of 40 years using the
straight-line method.
 
    The Selected Systems periodically review the carrying value of their
licenses to determine whether such amounts are recoverable based on undiscounted
future cash flows and whether a reduction to fair value is necessary. There have
been no such reductions through October 8, 1996.
 
OTHER ASSETS
 
    Other assets primarily represent the acquisition cost of customer lists
which is being amortized over a period of 5 years using the straight-line
method.
 
ADVANCES FROM AFFILIATES
 
    Advances from affiliates primarily represent cash advances from HCTC and
KCCGP which provided funds for investing and operating activities, and have no
specific repayment terms. Interest expense is charged monthly at a rate of
11 3/8%. Interest paid on advances from affiliates was $2,680,384 for the 1996
Period.
 
REVENUE AND EXPENSE RECOGNITION
 
    Cellular airtime revenue and access charges are recognized as service is
provided. Cellular airtime is billed in arrears and a majority of access charges
are billed in advance. Subscriber acquisition costs (mainly commissions and loss
on equipment sales) are expensed when incurred. Accounts receivable consist
mainly of amounts due from subscribers and other cellular companies whose
subscribers use the Selected Systems' cellular service.
 
    Approximately 30% of the Company's roaming revenue for the 1996 Period was
generated from subscribers of a cellular company serving an adjacent market
whose subscribers placed or received calls on the Company's system.
 
ADVERTISING EXPENSES
 
    Advertising expenses are charged to operations as incurred and amounted to
approximately $570,000 for the 1996 Period.
 
                                      F-31
<PAGE>
                              SELECTED SYSTEMS OF
                    HORIZON CELLULAR TELEPHONE COMPANY, L.P.
               NOTES TO COMBINED FINANCIAL STATEMENTS (CONTINUED)
 
3. ACCOUNTING POLICIES (CONTINUED)
INCOME TAXES
 
    The Selected Systems are limited partnerships organized under the laws of
the state of Delaware. Accordingly, federal and state taxes are not paid at the
partnership level but by the ultimate partners of the Selected Systems.
 
4. COMMITMENTS AND CONTINGENCIES
 
    The Selected Systems lease office space, office equipment and cellular sites
and facilities under operating leases with initial terms ranging from 1 to 20
years. Most cellular sites contain renewal options ranging up to 25 years.
 
    Future minimum payments under noncancelable operating leases with initial
terms of one year or more consisted of the following for the periods ending
after October 8, assuming cellular site leases are renewed through the year
2000:
 
<TABLE>
<CAPTION>
                                                                        CELLULAR
                                                                         SITES        OTHER
                                                                      ------------  ----------
<S>                                                                   <C>           <C>
1997................................................................  $    517,000  $  250,000
1998................................................................       402,000     196,000
1999................................................................       350,000     180,000
2000................................................................       293,000     148,000
2001................................................................       165,000      17,000
Thereafter..........................................................       974,000          --
                                                                      ------------  ----------
Total...............................................................  $  2,701,000  $  791,000
                                                                      ------------  ----------
                                                                      ------------  ----------
</TABLE>
 
    Rental expense amounted to approximately $698,000 for the 1996 Period.
 
6. RELATED PARTY TRANSACTIONS
 
    KCCGP provides various administrative services to the Selected Systems,
including accounting, engineering, marketing and advertising services, in
addition to funding working capital requirements and capital expenditures as
necessary. These expenses are charged on the basis of direct usage when
identifiable with the remainder allocated equally among its operating systems.
Allocated expenses amounted to $115,600 for the 1996 Period.
 
7. BENEFIT PLANS
 
    HCTC has granted certain officers of the Selected Systems limited
partnership appreciation rights in HCTC pursuant to a Limited Partnership Unit
Appreciation Rights Plan ("LPAR Plan") that was adopted September 1, 1994 to be
effective January 1, 1993. Upon the occurrence of certain events as specified
therein ("Termination Events"), participants are entitled to share in the
amounts, if any, of distributions to HCTC's partners after all capital
contributions made by HCTC's partners have been repaid, together with a fixed
return on such contributions. Such rights vest over a period of five years,
however vesting is automatically accelerated upon the occurrence of a
Termination Event. Compensation expense of $416,700 was recognized during the
1996 Period in connection with HCTC entering into a definitive agreement to sell
the assets and liabilities of the Selected Systems to SYGNET.
 
                                      F-32
<PAGE>
                              SELECTED SYSTEMS OF
                    HORIZON CELLULAR TELEPHONE COMPANY, L.P.
               NOTES TO COMBINED FINANCIAL STATEMENTS (CONTINUED)
 
7. BENEFIT PLANS (CONTINUED)
    Effective July 1, 1994, KCCGP established an employee savings plan (the
"Plan") that qualifies as a deferred salary arrangement under Section 401 (k) of
the Internal Revenue Code. Under the Plan, which covers employees of the
Selected Systems who have met certain eligibility requirements, participating
employees may defer up to 15% of their pretax earnings, up to the Internal
Revenue Service annual contribution limit. The Company matches up to 50% of the
employee's contributions, up to a maximum of 3% of the employee's earnings.
Employees who participate in the LPAR Plan are excluded from matching
contributions. Matching Plan contributions, which vest equally over five years,
amounted to approximately $36,700 for the 1996 Period.
 
                                      F-33
<PAGE>
                                    PART II
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 20. INDEMNIFICATION OF DIRECTORS AND OFFICERS
 
    As permitted by the Oklahoma General Corporation Act under which the Company
is incorporated, Article X of the Company's Amended Certificate of Incorporation
provides for indemnification of each of the Company's officers and directors
against (a) expenses, including attorney's fees, judgments, fines and amounts
paid in settlement actually and reasonably incurred by him in connection with
any action, suit or proceeding brought by reason of his being or having been a
director, officer, employee or agent of the Company, or of any other
corporation, partnership, joint venture, or other enterprise at the request of
the Company, other than an action by or in the right of the Company, provided
that he acted in good faith and in a manner he reasonably believed to be in the
best interest of the Company, and with respect to any criminal action, he had no
reasonable cause to believe that his conduct was unlawful and (b) expenses
(including attorney's fees) actually and reasonably incurred by him in
connection with the defense or settlement of any action or suit by or in the
right of the Company brought by reason of his being or having been a director,
officer, employee or agent of the Company, or any other corporation,
partnership, joint venture, or other enterprise at the request of the Company,
provided that he acted in good faith and in a manner he reasonably believed to
be in or not opposed to the best interest of the Company; except that no
indemnification shall be made in respect of any claim, issue or matter as to
which such person shall have been adjudged liable to the Company, unless and
only to the extent that the court in which such action or suit was decided has
determined that the person is fairly and reasonably entitled to indemnification
for such expenses which the court shall deem proper. The Company's bylaws
provide for similar indemnification. These provisions may be sufficiently broad
to indemnify such persons for liabilities arising under the Securities Act of
1933, as amended.
 
    The Company's directors and officers are also insured against claims arising
out of the performance of their duties in such capacities.
 
ITEM 21. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.
 
    (a) Exhibits
 
<TABLE>
<CAPTION>
 EXHIBIT                                                                                     METHOD OF
 NUMBERS                                    DESCRIPTION                                       FILING
- ---------  ------------------------------------------------------------------------------  -------------
<C>        <S>                                                                             <C>
  2.1      Agreement and Plan of Merger dated July 28, 1998 between Sygnet Wireless, Inc.
             and Dobson/Sygnet Operating Company (formerly known as Front Nine Operating
             Company) (without schedules).                                                     (1) [2.0]
  2.2      Purchase Agreement dated July 8, 1998 by and between Sygnet Communications,
             Inc. and Pinellas Communications.                                               (2) [10.32]
  2.3      Asset Acquisition Agreement dated July 11, 1996 among Horizon Cellular
             Telephone Company of Chantaugua, L.P., Horizon Cellular Telephone Company of
             Crawford, L.P. and Sygnet Communications, Inc.                                  (3) [10.17]
  2.4      Agreement for Purchase of Partnership Interest dated September 15, 1995 by and
             between Sygnet Communications, Inc. and Erie Cellular Systems, Inc.
             (formerly McCaw Communications of Erie, Inc.).                                  (3) [10.18]
  2.5      Agreement to Furnish Schedules.                                                           (4)
  3.1      Registrant's Amended Certificate of Incorporation.                                        (4)
  3.2      Registrant's Amended Bylaws.                                                              (4)
</TABLE>
 
                                      II-1
<PAGE>
<TABLE>
<CAPTION>
 EXHIBIT                                                                                     METHOD OF
 NUMBERS                                    DESCRIPTION                                       FILING
- ---------  ------------------------------------------------------------------------------  -------------
<C>        <S>                                                                             <C>
  4.1      Indenture dated December 23, 1998 between Registrant, as Issuer, and United
             States Trust Company of New York, as Trustee.                                     (1) [4.1]
  4.2      Form of Note under Indenture (contained in Exhibit 4.1 hereto).                     (1) [4.1]
  4.3      Pledge Agreement dated December 23, 1998 between Registrant, as Pledgor, and
             NationsBanc Montgomery Securities LLC, Lehman Brothers, Inc., First Union
             Capital Markets, a division of Wheat First Securities, Inc. and TD
             Securities (USA) Inc., as Initial Purchasers, and United States Trust
             Company of New York, as Trustee.                                                        (4)
  4.4      Registration Rights Agreement dated December 23, 1998 between Registrant and
             NationsBanc Montgomery Securities LLC, Lehman Brothers Inc., First Union
             Capital Markets, a division of Wheat First Securities, Inc. and TD
             Securities (USA) Inc.                                                                   (4)
  4.5      Credit Agreement among the Agents and Lenders named therein and Dobson/Sygnet
             Operating Company, dated as of December 23, 1998.                                       (4)
  5        Opinion of McAfee & Taft A Professional Corporation.                                      (5)
 10.1      Asset Purchase Agreement dated December 23, 1998 by and between Sygnet
             Communications, Inc. and Dobson Tower Company.                                          (4)
 10.2      Master Site License Agreement dated December 23, 1998 by and between Sygnet
             Communications, Inc. and Dobson Tower Company.                                          (4)
 10.3.1    Cellular One License Agreement effective December 1, 1996, between Cellular
             One Group and Erie Cellular Telephone Company.                                          (4)
 10.3.2    Cellular One License Agreement, effective as of December 17, 1996, between
             Cellular One Group and Sygnet Communications, Inc. (PA-1).                              (4)
 10.3.3    Cellular One License Agreement, effective as of November 7, 1996, between
             Cellular One Group and Sygnet Communications, Inc. (PA-6).                              (4)
 10.3.4    Cellular One License Agreement, effective as of January 30, 1997, between
             Cellular One Group and Sygnet Communications, Inc. (PA-7).                              (4)
 10.3.5    Cellular One License Agreement, effective as of January 1, 1997, between
             Cellular One Group and Sygnet Communications, Inc. (NY-3).                              (4)
 10.4      Intercarrier Services Agreement dated April 25, 1995 between Youngstown
             Cellular Telephone Company and EDS Personal Communications Corporation, with
             Amendment dated April 10, 1996.                                                 (3) [10.13]
 10.4.1    Amendment No. 2 dated August 1, 1997 to Intercarrier Services Agreement dated
             April 25, 1995 between Youngstown Cellular Telephone Company and EDS
             Personal Communications Corporation.                                                    (4)
</TABLE>
 
                                      II-2
<PAGE>
   
<TABLE>
<CAPTION>
 EXHIBIT                                                                                     METHOD OF
 NUMBERS                                    DESCRIPTION                                       FILING
- ---------  ------------------------------------------------------------------------------  -------------
<C>        <S>                                                                             <C>
 10.5      Northern Telecom, Inc. DMS-MTX Cellular Supply Agreement dated June 1, 1996
             between Youngstown Cellular Telephone Company and Northern Telecom, Inc.        (3) [10.12]
 10.5.1    Amendment No. 1 dated April 15, 1998 to Northern Telecom, Inc. DMS-MTX
             Cellular Supply Agreement dated June 1, 1996 between Youngstown Cellular
             Telephone Company and Northern Telecom, Inc.                                            (4)
 10.6*     Consulting Agreement dated December 21, 1998 between Dobson Communications
             Corporation and Albert H. Pharis, Jr.                                                   (4)
 10.7*     Consulting Agreement dated August 15, 1998 between Dobson Communications
             Corporation and Russell L. Dobson.                                             (6) [10.3.8]
 12.1      Ratio of earnings to fixed charges for Dobson/Sygnet.                                     (4)
 12.2      Ratio of earnings to combined fixed charges and preferred stock dividends for
             Sygnet Wireless, Inc.                                                                   (4)
 21        Subsidiaries.                                                                             (4)
 23.1      Consent of McAfee & Taft A Professional Corporation will be contained in
             Exhibit 5 hereto.                                                                   (5) [5]
 23.2      Consent of Arthur Andersen LLP (Oklahoma City -- DSCC).                                   (5)
 23.3      Consent of Ernst & Young LLP (Cleveland--Sygnet).                                         (5)
 23.4      Consent of Ernst & Young LLP (Cleveland--Horizon).                                        (5)
 24        Power of Attorney.                                                                        (4)
 27        Financial Data Schedule.                                                                  (4)
 99.1      Letter of Transmittal.                                                                    (4)
 99.2      Notice of Guarantee of Delivery.                                                          (4)
 99.3      Guidelines for Certification of Taxpayer Identification Number.                           (4)
 99.4      Company letter.                                                                           (4)
 99.5      Client letter.                                                                            (4)
 99.6      Instruction to Beneficial Holders.                                                        (4)
</TABLE>
    
 
- ------------------------
 
*   Management contract or compensatory plan or arrangement.
 
(1) Filed as an exhibit to the Current Report on Form 8-K of Dobson
    Communications Corporation (333-23769) filed on January 7, 1999, as the
    exhibit number indicated in brackets and incorporated by reference herein.
 
(2) Filed as an exhibit to the Quarterly Report of Sygnet Wireless, Inc.
    (333-10161) on Form 10-Q for the quarterly period ended June 30, 1998, as
    the exhibit number indicated in brackets and incorporated by reference
    herein.
 
(3) Filed as an exhibit to the Sygnet Wireless, Inc. Registration Statement on
    Form S-1 (Registration No. 333-10161), as the exhibit number indicated in
    brackets and incorporated by reference herein.
 
(4) Previously filed as an exhibit to this Registration Statement.
 
(5) Filed herewith.
 
(6) Filed as an exhibit to Dobson Communications Corporation's Annual Report on
    Form 10-K for the year ended December 31, 1998 as the exhibit number
    indicated in brackets and incorporated by reference herein.
 
                                      II-3
<PAGE>
    (b) Financial Statement Schedules
 
    None.
 
ITEM 22. UNDERTAKINGS.
 
    The undersigned Registrant hereby undertakes:
 
        (1) To file, during any period in which offers or sales are being made,
    a post-effective amendment to this Registration Statement:
 
            (i) To include any prospectus required by section 10(a)(3) of the
       Securities Act of 1933;
 
            (ii) To reflect in the prospectus any facts or events arising after
       the effective date of the Registration Statement (or the most recent
       post-effective amendment thereof) which, individually or in the
       aggregate, represent a fundamental change in the information set forth in
       the Registration Statement;
 
           (iii) To include any material information with respect to the plan of
       distribution not previously disclosed in the Registration Statement or
       any material change to such information in the Registration Statement.
 
        (2) That, for the purpose of determining any liability under the
    Securities Act of 1933, each such post-effective amendment shall be deemed
    to be a new registration statement relating to the securities offered
    therein, and the offering of such securities at the time shall be deemed to
    be the initial bona fide offering thereof.
 
        (3) To remove from registration by means of a post-effective amendment
    any of the securities being registered which remain unsold at the
    termination of the offering.
 
    The undersigned Registrant hereby undertakes to respond to requests for
information that is incorporated by reference into the prospectus pursuant to
Items 4, 10(b), 11 or 13 of this Form, within one business day of receipt of
such request, and to send the incorporated documents by first class mail or
other equally prompt means. This includes information contained in documents
filed subsequent to the effective date of the Registration Statement through the
date of responding to the request.
 
    The undersigned Registrant hereby undertakes to supply by means of a
post-effective amendment all information concerning a transaction, and the
company being acquired involved therein, that was not the subject of and
included in the Registration Statement when it became effective.
 
    Insofar as indemnification for liabilities arising under the Securities Act
of 1933 may be permitted to directors, officers and controlling persons of the
Registration pursuant to the provisions described under Item 20, or otherwise,
the Registrant has been advised that in the opinion of the Securities and
Exchange Commission such indemnifications against public policy as expressed in
the Act and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the
Registrant of expenses incurred or paid by a director, officer or controlling
person of the Registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the Registrant will, unless in
the opinion of its counsel the matter has been settled by controlling precedent,
submit a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the Act and will
be governed by the final adjudication of such issue.
 
                                      II-4
<PAGE>
                                   SIGNATURES
 
   
    Pursuant to the requirements of the Securities Act of 1933, the registrant
has duly caused this amended Registration Statement to be signed on its behalf
by the undersigned, thereunto duly authorized, in the City of Oklahoma City,
State of Oklahoma, on the 3rd day of May, 1999.
    
 
<TABLE>
<S>                             <C>  <C>
                                DOBSON/SYGNET COMMUNICATIONS COMPANY
 
                                By:            /s/ Everett R. Dobson*
                                     -----------------------------------------
                                                 Everett R. Dobson
                                     CHAIRMAN OF THE BOARD, PRESIDENT AND CHIEF
                                                 EXECUTIVE OFFICER
</TABLE>
 
   
    Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed by the following persons in the
capacities indicated on the 3rd day of May, 1999.
    
 
             NAME                                TITLE
- ------------------------------  ----------------------------------------
 
    /s/ Everett R. Dobson*      Chairman of the Board, President and
- ------------------------------    Chief Executive Officer (Principal
      Everett R. Dobson           Executive Officer) and Director
 
    /s/ Stephen T. Dobson*      Secretary and Director
- ------------------------------
      Stephen T. Dobson
 
   /s/ Bruce R. Knooihuizen     Vice President and Chief Financial
- ------------------------------    Officer (Principal Financial Officer)
     Bruce R. Knooihuizen
 
      /s/ Trent LeForce*        Corporate Controller (Principal
- ------------------------------    Accounting Officer)
        Trent LeForce
 
    /s/ Russell L. Dobson*      Director
- ------------------------------
      Russell L. Dobson
 
    /s/ Justin L. Jaschke*      Director
- ------------------------------
      Justin L. Jaschke
 
  /s/ Albert H. Pharis, Jr.*    Director
- ------------------------------
    Albert H. Pharis, Jr.
 
    /s/ Dana L. Schmaltz*       Director
- ------------------------------
       Dana L. Schmaltz
 
<TABLE>
<S>   <C>                        <C>                         <C>
*By:  /s/ Bruce R. Knooihuizen
      -------------------------
        Bruce R. Knooihuizen
          ATTORNEY-IN-FACT
</TABLE>
 
                                      II-5
<PAGE>
                               INDEX TO EXHIBITS
 
<TABLE>
<CAPTION>
 EXHIBIT                                                                                     METHOD OF
 NUMBERS                                    DESCRIPTION                                       FILING
- ---------  ------------------------------------------------------------------------------  -------------
<C>        <S>                                                                             <C>
  2.1      Agreement and Plan of Merger dated July 28, 1998 between Sygnet Wireless, Inc.
             and Dobson/Sygnet Operating Company (formerly known as Front Nine Operating
             Company) (without schedules).                                                     (1) [2.0]
 
  2.2      Purchase Agreement dated July 8, 1998 by and between Sygnet Communications,
             Inc. and Pinellas Communications.                                               (2) [10.32]
 
  2.3      Asset Acquisition Agreement dated July 11, 1996 among Horizon Cellular
             Telephone Company of Chantaugua, L.P., Horizon Cellular Telephone Company of
             Crawford, L.P. and Sygnet Communications, Inc.                                  (3) [10.17]
 
  2.4      Agreement for Purchase of Partnership Interest dated September 15, 1995 by and
             between Sygnet Communications, Inc. and Erie Cellular Systems, Inc.
             (formerly McCaw Communications of Erie, Inc.).                                  (3) [10.18]
 
  2.5      Agreement to Furnish Schedules.                                                           (4)
 
  3.1      Registrant's Amended Certificate of Incorporation.                                        (4)
 
  3.2      Registrant's Amended Bylaws.                                                              (4)
 
  4.1      Indenture dated December 23, 1998 between Registrant, as Issuer, and United
             States Trust Company of New York, as Trustee.                                     (1) [4.1]
 
  4.2      Form of Note under Indenture (contained in Exhibit 4.1 hereto).                     (1) [4.1]
 
  4.3      Pledge Agreement dated December 23, 1998 between Registrant, as Pledgor, and
             NationsBanc Montgomery Securities LLC, Lehman Brothers, Inc., First Union
             Capital Markets, a division of Wheat First Securities, Inc. and TD
             Securities (USA) Inc., as Initial Purchasers, and United States Trust
             Company of New York, as Trustee.                                                        (4)
 
  4.4      Registration Rights Agreement dated December 23, 1998 between Registrant and
             NationsBanc Montgomery Securities LLC, Lehman Brothers Inc., First Union
             Capital Markets, a division of Wheat First Securities, Inc. and TD
             Securities (USA) Inc.                                                                   (4)
 
  4.5      Credit Agreement among the Agents and Lenders named therein and Dobson/Sygnet
             Operating Company, dated as of December 23, 1998.                                       (4)
 
  5        Opinion of McAfee & Taft A Professional Corporation.                                      (5)
 
 10.1      Asset Purchase Agreement dated December 23, 1998 by and between Sygnet
             Communications, Inc. and Dobson Tower Company.                                          (4)
 
 10.2      Master Site License Agreement dated December 23, 1998 by and between Sygnet
             Communications, Inc. and Dobson Tower Company.                                          (4)
 
 10.3.1    Cellular One License Agreement effective December 1, 1996, between Cellular
             One Group and Erie Cellular Telephone Company.                                          (4)
 
 10.3.2    Cellular One License Agreement, effective as of December 17, 1996, between
             Cellular One Group and Sygnet Communications, Inc. (PA-1).                              (4)
</TABLE>
<PAGE>
   
<TABLE>
<CAPTION>
 EXHIBIT                                                                                     METHOD OF
 NUMBERS                                    DESCRIPTION                                       FILING
- ---------  ------------------------------------------------------------------------------  -------------
<C>        <S>                                                                             <C>
 10.3.3    Cellular One License Agreement, effective as of November 7, 1996, between
             Cellular One Group and Sygnet Communications, Inc. (PA-6).                              (4)
 
 10.3.4    Cellular One License Agreement, effective as of January 30, 1997, between
             Cellular One Group and Sygnet Communications, Inc. (PA-7).                              (4)
 
 10.3.5    Cellular One License Agreement, effective as of January 1, 1997, between
             Cellular One Group and Sygnet Communications, Inc. (NY-3).                              (4)
 
 10.4      Intercarrier Services Agreement dated April 25, 1995 between Youngstown
             Cellular Telephone Company and EDS Personal Communications Corporation, with
             Amendment dated April 10, 1996.                                                 (3) [10.13]
 
 10.4.1    Amendment No. 2 dated August 1, 1997 to Intercarrier Services Agreement dated
             April 25, 1995 between Youngstown Cellular Telephone Company and EDS
             Personal Communications Corporation.                                                    (4)
 
 10.5      Northern Telecom, Inc. DMS-MTX Cellular Supply Agreement dated June 1, 1996
             between Youngstown Cellular Telephone Company and Northern Telecom, Inc.        (3) [10.12]
 
 10.5.1    Amendment No. 1 dated April 15, 1998 to Northern Telecom, Inc. DMS-MTX
             Cellular Supply Agreement dated June 1, 1996 between Youngstown Cellular
             Telephone Company and Northern Telecom, Inc.                                            (4)
 
 10.6*     Consulting Agreement dated December 21, 1998 between Dobson Communications
             Corporation and Albert H. Pharis, Jr.                                                   (4)
 
 10.7*     Consulting Agreement dated August 15, 1998 between Dobson Communications
             Corporation and Russell L. Dobson.                                             (6) [10.3.8]
 
 12.1      Ratio of earnings to fixed charges for Dobson/Sygnet                                      (4)
 
 12.2      Ratio of earnings to combined fixed charges and preferred stock dividends for
             Sygnet Wireless, Inc.                                                                   (4)
 
 21        Subsidiaries.                                                                             (4)
 
 23.1      Consent of McAfee & Taft A Professional Corporation will be contained in
             Exhibit 5 hereto.                                                                   (5) [5]
 
 23.2      Consent of Arthur Andersen LLP (Oklahoma City -- DSCC).                                   (5)
 
 23.3      Consent of Ernst & Young LLP (Cleveland--Sygnet).                                         (5)
 
 23.4      Consent of Ernst & Young LLP (Cleveland--Horizon).                                        (5)
 
 24        Power of Attorney.                                                                        (4)
 
 27        Financial Data Schedule.                                                                  (4)
 
 99.1      Letter of Transmittal.                                                                    (4)
 
 99.2      Notice of Guarantee of Delivery.                                                          (4)
 
 99.3      Guidelines for Certification of Taxpayer Identification Number.                           (4)
 
 99.4      Company letter.                                                                           (4)
 
 99.5      Client letter.                                                                            (4)
</TABLE>
    
<PAGE>
<TABLE>
<CAPTION>
 EXHIBIT                                                                                     METHOD OF
 NUMBERS                                    DESCRIPTION                                       FILING
- ---------  ------------------------------------------------------------------------------  -------------
<C>        <S>                                                                             <C>
 99.6      Instruction to Beneficial Holders.                                                        (4)
</TABLE>
 
- ------------------------
 
*   Management contract or compensatory plan or arrangement.
 
(1) Filed as an exhibit to the Current Report on Form 8-K of Dobson
    Communications Corporation (333-23769) filed on January 7, 1999, as the
    exhibit number indicated in brackets and incorporated by reference herein.
 
(2) Filed as an exhibit to the Quarterly Report of Sygnet Wireless, Inc.
    (333-10161) on Form 10-Q for the quarterly period ended June 30, 1998, as
    the exhibit number indicated in brackets and incorporated by reference
    herein.
 
(3) Filed as an exhibit to the Sygnet Wireless, Inc. Registration Statement on
    Form S-1 (Registration No. 333-10161), as the exhibit number indicated in
    brackets and incorporated by reference herein.
 
(4) Previously filed as an exhibit to this Registration Statement.
 
(5) Filed herewith.
 
(6) Filed as an exhibit to Dobson Communications Corporation's Annual Report on
    Form 10-K for the year ended December 31, 1998 as the exhibit number
    indicated in brackets and incorporated by reference herein.

<PAGE>

                                                                     EXHIBIT 5
                                       
                                  [LETTERHEAD]

                                  May 3, 1999

Dobson/Sygnet Communications Company
13439 N. Broadway Extension
Suite 200
Oklahoma City, Oklahoma 73114

                                       Re:  12 1/4% Senior Notes due 2008

Ladies and Gentlemen:

    We have acted as special counsel to Dobson/Sygnet Communications Company 
(the "Company") in connection with the issuance and sale of $200,000,000 
aggregate principal amount of the Company's 12 1/4% Senior Notes due 2008 
(which are referred to herein as the "Old Notes") and the registration under 
the Securities act of 1933 of $200,000,000 aggregate principal amount of the 
Company's 12 1/4% Senior Notes due 2008 (the "New Notes"). The New Notes are to 
be offered in exchange for all outstanding Old Notes (the "Exchange Offer") as 
more fully set forth in the prospectus which forms are a part of the Company's 
Registration Statement on Form S-4, as amended, (the "Registration Statement")
with which this opinion is being filed.

    In this connection we have examined the Company's Certificate of 
Incorporation and Bylaws, minutes of certain meetings of the Company's Board 
of Directors and the Indenture dated as of December 23, 1998 between the 
Company and United States Trust Company of New York, as Trustee, governing 
the Old Notes and the New Notes, and have made such other investigations of 
fact and law as we deem necessary to render the opinions set forth herein.

    Based on the foregoing, we are of the opinion that the New Notes to be 
exchanged for the Old Notes in the Exchange Offer, when issued in accordance 
therewith, will be legally issued, fully paid and non-assessable and will be 
binding obligations of the Company.

    The opinion expressed herein as to the New Notes constituting binding 
obligations of the Company is subject to the exceptions that (1) enforcement 
may be limited by bankruptcy, insolvency (including, without limitation, all 
laws relating to fraudulent transfers), reorganization, moratorium or similar 
laws affecting enforcement of creditors rights generally, and (2)

<PAGE>

enforcement is subject to general principles of equity (regardless of whether 
enforcement is considered a proceeding in equity or at law).

    We hereby consent to the reference to our firm in the Prospectus under 
the caption "Legal Matters".

                                       Very truly yours,


                                       /s/ McAFEE & TAFT
                                       A Professional Corporation
















                                      -2-

<PAGE>
                                                                    EXHIBIT 23.2
 
                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS
 
    As independent public accountants, we hereby consent to the use of our
report on the consolidated financial statements of Dobson/Sygnet Communications
Company (and all references to our Firm) included in or made a part of this
registration statement.
 
                                          ARTHUR ANDERSEN LLP
 
   
Oklahoma City, Oklahoma
April 29, 1999
    

<PAGE>
                                                                    EXHIBIT 23.3
 
                        CONSENT OF INDEPENDENT AUDITORS
 
   
    We consent to the reference to our firm under the caption "Experts" and to
the use of our report dated February 5, 1999, with respect to the consolidated
financial statements of Sygnet Wireless, Inc. included in Amendment No. 3 to the
Registration Statement (Form S-4 No. 333-71051) and related Prospectus of
Dobson/Sygnet Communications Company for the registration of $200,000,000 of its
Senior Notes.
    
 
   
Cleveland, Ohio
April 29, 1999
    

<PAGE>
                                                                    EXHIBIT 23.4
 
                        CONSENT OF INDEPENDENT AUDITORS
 
   
    We consent to the use of our firm under the caption "Experts" and to the use
of our report dated December 20, 1996, with respect to the combined financial
statements of the Selected Systems of Horizon Cellular Telephone Company, L.P.
included in Amendment No. 3 to the Registration Statement (Form S-4 No.
333-71051) and related Prospectus of Dobson/Sygnet Communications Company for
the registration of $200,000,000 of its Senior Notes.
    
 
   
Cleveland, Ohio
April 29, 1999
    


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