MCI COMMUNICATIONS CORP
11-K, 1998-06-25
TELEPHONE COMMUNICATIONS (NO RADIOTELEPHONE)
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D. C. 20549
                                    Form 11-K


(Mark One)
[ X ]         ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE
              SECURITIES EXCHANGE ACT OF 1934 [FEE REQUIRED]

         For The Fiscal Year Ended December 31, 1997

                                   OR

[   ]         TRANSITION REPORT PURSUANT TO SECTION 15(d) OF THE
              SECURITIES EXCHANGE ACT OF 1934 [NO FEE REQUIRED]

         For the transition period from                  to

Commission file number     0-6547

A.    Full title of the plan and the address of the plan, if different from that
      of the issuer named below: MCI  Communications  Corporation  401(k) Plan 
      for Exempt Employees

B.    Name of issuer of the securities held pursuant to the plan and the 
      address of its principal executive office: MCI Communications Corporation,
      1801 Pennsylvania Avenue, NW, Washington, DC 20006



                                                       Page 1
<PAGE>
                                           MCI COMMUNICATIONS CORPORATION
                                          401(k) PLAN FOR EXEMPT EMPLOYEES
                                                  EIN:  52-0886267
                                     INDEX TO FINANCIAL STATEMENTS AND SCHEDULES
<TABLE>
<CAPTION>
<S>                                                                                                 <C>    


                                                                                                     Page(s)
                                                                                                     -------

Report of Independent Accountants                                                                         3

Statements of Net Assets Available for Benefits
at December 31, 1997 and 1996                                                                             4

Statements of Changes in Net Assets Available for
Benefits for the years ended December 31, 1997 and 1996                                                   5,6

Notes to Financial Statements                                                                             7-36

Additional Information:
         Schedule I.   
         Schedule of Assets Held for
                  Investment Purposes at
                  December 31, 1997                                                                       37

         Schedule II.   
         Schedule of Reportable
                  Transactions for the year
                  ended December 31, 1997                                                                 38

Signature                                                                                                 39

Exhibits:
         23.      Consent of Independent Accountants                                                      40

         99.      Certification Regarding Certain
                  Investment Arrangements                                                                 41


</TABLE>







                                                       Page 2

<PAGE>





                 REPORT OF INDEPENDENT ACCOUNTANTS

To the Participants and Administrative
Committee of the MCI Communications Corporation
401(k) Plan for Exempt Employees

In our opinion, the accompanying statements of net assets available for benefits
and the  related  statements  of changes in net assets  available  for  benefits
present fairly, in all material respects,  the net assets available for benefits
of the MCI  Communications  Corporation  401(k)  Plan for  Exempt  Employees  at
December 31, 1997 and 1996, and the changes in net assets available for benefits
for the years then ended,  in  conformity  with  generally  accepted  accounting
principles.  These  financial  statements are the  responsibility  of the plan's
management;  our  responsibility  is to express  an  opinion on these  financial
statements  based on our audits.  We conducted our audits of these statements in
accordance with generally accepted auditing standards which 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,  assessing the accounting  principles used and significant estimates
made by management, and evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for the opinion  expressed
above.

Our audits  were  performed  for the  purpose of forming an opinion on the basic
financial  statements taken as a whole. The additional  information  included in
Schedules I and II is presented for purposes of additional analysis and is not a
required part of the basic financial statements,  but is additional  information
required by the Employee  Retirement  Income  Security Act of 1974,  as amended.
Such  information has been subjected to the auditing  procedures  applied in the
audit of the basic financial statements and, in our opinion, is fairly stated in
all material  respects in relation to the basic financial  statements taken as a
whole.



PRICE WATERHOUSE LLP
Washington, D. C.
June 8, 1998

                                                       Page 3

<PAGE>

<TABLE>
<CAPTION>

                                           MCI COMMUNICATIONS CORPORATION
                                          401(k) PLAN FOR EXEMPT EMPLOYEES
                                                  EIN: 52-0886267
                                   STATEMENTS OF NET ASSETS AVAILABLE FOR BENEFITS


                                                                            DECEMBER 31
                                                                            -----------
                                                                   1997                    1996
                                                              --------------            -------------
<S>                                                           <C>                       <C>   

Value of interest in master trust                             $1,041,774,386            $ 713,959,033
                                                              --------------            -------------

Net assets available for benefits                             $1,041,774,386            $ 713,959,033
                                                              ==============            =============

</TABLE>


























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


                                                       Page 4


<PAGE>
<TABLE>
<CAPTION>


                                           MCI COMMUNICATIONS CORPORATION
                                          401(k) PLAN FOR EXEMPT EMPLOYEES
                                                    EIN: 52-0886267
                              STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS
                                        FOR THE YEAR ENDED DECEMBER 31, 1997

ADDITIONS
- ---------
<S>                                                                                     <C>  
Contributions:
  Participants                                                                          $ 102,510,957
  Non-cash employer                                                                        46,322,911
  Rollovers                                                                                13,628,975
  Transfers from ESOP                                                                         537,674
                                                                                        --------------
         Total contributions                                                              163,000,517
                                                                                        --------------

Earnings on investments:
  Interest on participant loans                                                             1,965,978
  Interest on guaranteed investment contracts                                               6,022,625
  Dividends on common stock                                                                   569,657
  Net realized gain on sale of common stock                                                 1,879,879
  Unrealized appreciation of common stock                                                 108,333,135
  Net realized/unrealized gain from registered
    investment companies                                                                   71,536,669
                                                                                        --------------
         Total earnings on investments                                                    190,307,943
                                                                                        --------------
         Total additions                                                                  353,308,460
                                                                                        --------------

DEDUCTIONS
- ----------

Participant benefit payments                                                               45,157,320
Account maintenance fees                                                                      110,677
                                                                                        --------------
         Net increase                                                                     308,040,463

Transfers to plan                                                                          19,774,890

Net assets available for benefits, at
  beginning of year                                                                       713,959,033
                                                                                        --------------
Net assets available for benefits, at
  end of year                                                                          $1,041,774,386
                                                                                       ===============



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


                                                       Page 5
<PAGE>
                                           MCI COMMUNICATIONS CORPORATION
                                          401(k) PLAN FOR EXEMPT EMPLOYEES
                                                     EIN: 52-0886267
                              STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS
                                        FOR THE YEAR ENDED DECEMBER 31, 1996

ADDITIONS
- ---------

Contributions:
  Participants                                                                          $  73,656,406
  Non-cash employer                                                                        35,319,523
  Rollovers                                                                                 7,083,311
  Transfers from ESOP                                                                         940,335
                                                                                        --------------
         Total contributions                                                              116,999,575
                                                                                        --------------

Earnings on investments:
  Interest on participant loans                                                             1,629,497
  Interest on guaranteed investment contracts                                               6,255,490
  Dividends on common stock                                                                   445,635
  Net realized gain on sale of common stock                                                   808,155
  Unrealized appreciation of common stock                                                  59,988,328
  Net realized/unrealized gain from registered
     investment companies                                                                  34,793,327
                                                                                        --------------
         Total earnings on investments                                                    103,920,432
                                                                                        --------------
         Total additions                                                                  220,920,007
                                                                                        --------------

DEDUCTIONS
- ----------

Participant benefit payments                                                               34,505,315
Account maintenance fees                                                                       98,473
                                                                                        --------------
         Net increase                                                                     186,316,219

Net interplan transfers                                                                   (10,184,667)

Net assets available for benefits, at
  beginning of year                                                                       537,827,481
                                                                                        --------------
Net assets available for benefits, at
  end of year                                                                           $ 713,959,033
                                                                                        ==============



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

</TABLE>

                                                       Page 6
<PAGE>
                            MCI COMMUNICATIONS CORPORATION
                           401(k) PLAN FOR EXEMPT EMPLOYEES
                                    EIN: 52-0886267
                            NOTES TO FINANCIAL STATEMENTS ON FORM 11-K
                               December 31, 1997 and 1996


NOTE 1- DESCRIPTION OF THE PLAN

The following brief  description of the MCI  Communications  Corporation  401(k)
Plan for Exempt  Employees  (the "Plan" or  "401(k)")  is  provided  for general
information  purposes only.  Participants  should refer to the Plan document for
more complete  information.  The Plan is subject to the applicable provisions of
the Employee Retirement Income Security Act of 1974, as amended ("ERISA").

Effective  January 1, 1996, the MCI  Communications  Corporation  Employee Stock
Ownership and 401(k) Plan and the MCI Consumer Markets 401(k) and Employee Stock
Ownership Plan ("CM Plan") were restructured and renamed the MCI  Communications
Corporation  ESOP and 401(k) Plan for Exempt  Employees  ("Exempt Plan") and the
MCI  Communications  Corporation  ESOP and 401(k) Plan for Non-Exempt  Employees
("Non-Exempt   Plan"),   respectively.   MCI  Communications   Corporation  (the
"Company") remained the sponsor of the Exempt Plan. The Exempt Plan is comprised
of two parts: Part I is an employee stock ownership plan ("ESOP"), Part II is an
Internal Revenue Code Section 401(k) plan. The accompanying financial statements
are  solely  those of Part II and are not  intended  to  present  the net assets
available  for benefits or the changes in net assets  available  for benefits of
the MCI  Communications  Corporation  ESOP and 401(k) Plan for Exempt  Employees
taken as a whole.  The  Company  separately  prepares  an  annual  report on the
overall MCI Communications Corporation ESOP and 401(k) plan for Exempt Employees
which is submitted to the Internal  Revenue  Service ("IRS") on Form 5500 and is
made available to all employees upon request.

The 401(k)  assets of the  Exempt  Plan,  along  with the  401(k)  assets of the
Non-Exempt Plan, the Darome Teleconferencing,  Inc. 401(k) Plan, the Systemhouse
Inc.  401(k) Savings Plan, and the MCI Wireless,  Inc.  Employees  Savings Plan,
participate in the MCI Communications  Corporation  Defined  Contribution Master
Trust (the "Master Trust").  This arrangement  facilitates the administration of
the plans as described  below.  Under the terms of the master  trust  agreement,
each plan has a specific interest in all assets and liabilities of the trust.




                                                       Page 7
<PAGE>
Contributions
- -------------

The Plan is a defined contribution,  deferred savings plan. Effective January 1,
1997,  exempt  employees  become  eligible  to  participate  under the Plan upon
completion of a three  consecutive,  full calendar  month period from his or her
date of hire and attainment of age 21. Prior to 1997,  exempt  employees  became
eligible to  participate  under the Plan upon  completion of one year of service
with 1,000 hours of service and  attainment  of age 21. An exempt  employee is a
salaried  employee who is exempt from the overtime pay  requirements of the Fair
Labor Standards Act of 1938, as amended. As a result of the restructuring of the
Plan, the Plan was amended to include all exempt  participants from the CM Plan.
All non-exempt participants in the Plan were transferred to the Non-Exempt Plan.
No further modifications were made to the Plan's provisions.  Eligible employees
may elect to defer up to 15% of eligible  compensation on a pre-tax basis, to be
contributed  to the Plan by the Company on behalf of such  employees  ("Elective
Contributions").  A participant who has completed a 12-consecutive-month  period
starting on his or her date of hire in which the participant has completed 1,000
hours of service is eligible to receive a Company  matching  contribution on the
first  6%  of  the  participant's  Elective   Contributions.   Company  matching
contributions  are made in the  form of MCI  Communications  Corporation  Common
Stock.  The Company  provides a matching  contribution of $.67 for each eligible
dollar of  Elective  Contributions  made to the  Plan.  The  Company's  matching
contribution  is made  biweekly and is  determined  by the closing  price of MCI
Communications  Corporation Common Stock on the date posted to the participants'
accounts.  Participants' Elective Contributions are withheld from their biweekly
paychecks and the Company  transfers  these  contributions  to the Plan each pay
period.  Participants vest in the Company's matching  contributions at a rate of
20%  per  year  of  service  and  are  always  100%  vested  in  their  Elective
Contributions.  Participants  receive a year of service for vesting purposes for
each Plan year during which they complete at least 1,000 hours of service.

Elective  Contributions are invested in any of the following investment funds in
accordance with participants' instructions. The available investment funds are:

     -   MCI Common Stock Fund

         A fund investing in MCI Communications  Corporation Common Stock. These
         shares of stock are qualified employer  securities as defined by ERISA.
         The closing price for MCI  Communications  Corporation Common Stock was
         $42.8125 and $32.6875 at December 31, 1997 and 1996, respectively.

                                                       Page 8
<PAGE>
     -    EuroPacific Growth Fund

         A long-term  growth fund  invested  primarily in  securities of issuers
         domiciled in Europe and the Pacific Basin.  The fund is a member of the
         American Funds Group and is managed by Capital  Research and Management
         Company. The net asset value for EuroPacific Growth Fund was $26.02 and
         $26.04 at December 31, 1997 and 1996, respectively.

    -     Dreyfus Basic 500 Stock Index Fund

         An  equity  index  mutual  fund  invested  in  common  stock  which  is
         comparable to the Standard & Poor's 500 Composite Index. All investment
         decisions  are made by Dreyfus  Corporation,  an  affiliate of the Plan
         trustee.  The trustee  oversees the fund in  accordance  with the trust
         agreement.  The net asset value for Dreyfus  Basic 500 Stock Index Fund
         was $20.57 and $15.91 at December 31, 1997 and 1996, respectively.

    -     Putnam Voyager Fund

         A  long-term  growth  fund  invested  in  a  diversified  portfolio  of
         primarily  two types of  common  stocks:  emerging  growth  stocks  and
         opportunity   stocks.   The  fund  is  managed  by  Putnam   Investment
         Management, Inc. The net asset value for Putnam Voyager Fund was $19.05
         and $16.12 at December 31, 1997 and 1996, respectively.

    -     Putnam New Opportunities Fund

         A growth  fund  invested  primarily  in common  stock of  companies  in
         economic  sectors  with  above-average  prospects  for  growth.  Putnam
         Investment Management, Inc. makes the investment decisions for the fund
         and is subject to the policies  established by the fund's trustee.  The
         net asset value for Putnam New Opportunities Fund was $48.65 and $40.63
         at December 31, 1997 and 1996, respectively.

    -     Putnam Balanced Retirement Fund

         A growth and income fund invested in a diversified  portfolio of equity
         and debt  securities.  Putnam  Investment  Management,  Inc.  makes the
         investment  decisions  for the  fund  and is  subject  to the  policies
         established  by the  fund's  trustee.  The net asset  value for  Putnam
         Balanced Retirement Fund was $10.89 and $10.34 at December 31, 1997 and
         1996, respectively.






                                                     Page 9
<PAGE>
    -     Stable Asset Fund

         The fund consists primarily of individually held guaranteed  investment
         contracts (GICs) issued by insurance companies and contracts with other
         financial  institutions that offer fixed interest rates on investments.
         The fund seeks to  maintain  a constant  book value of $1.00 per share.
         The  guaranteed  rates of interest range from 5.6% to 8.08% at December
         31, 1997.

         The following guaranteed investment contracts were held individually by
         the Master Trust as of December 31:

<TABLE>
<CAPTION>
                                              Contract Value
                                              --------------
                                                                     Contract
                                               1997        1996         Rate
         <S>                               <C>          <C>            <C>   
                                              ----         ----         ----
         A I G Life Insurance             $  5,323,731 $          0    6.53%

         A I G Life Insurance                3,155,722            0    7.00%

         Aetna Life Insurance               21,652,482   20,306,182    6.63%

         Allstate Life Insurance             6,856,228    6,474,248    5.90%

         Allstate Life Insurance             2,000,314    4,000,628    5.90%

         Canada Life Assurance Company       5,256,848            0    7.30%

         Continental Assurance Company       3,133,924            0    6.78%

         John Hancock Mutual Life Insurance 15,409,255   14,261,226    8.05%

         Life of Virginia                    5,053,558            0    6.28%

         New York Life Insurance             3,174,974    8,847,294    6.82%

         New York Life Insurance             3,156,159    5,803,475    8.08%

         Pacific Mutual Life Insurance       4,981,496    4,642,586    7.30%

         Pacific Mutual Life Insurance       4,333,876    1,287,816    7.36%

         Peoples Security Insurance Company  3,500,453    7,000,905    5.72%

         Peoples Security Insurance Company  3,367,299    5,220,011    5.86%

         Peoples Security Insurance Company  4,013,633            0    6.32%

         Principal Mutual Life Insurance     3,409,732    3,409,732    6.60%

         Principal Mutual Life Insurance     4,081,625            0    6.78%

         Protective Life Insurance           3,049,036            0    6.57%

         Prudential Life Insurance           3,225,446    6,028,870    7.00%

         Security Life of Denver             4,124,942            0    6.74%

         TransAmerica Life Insurance         1,713,081    3,423,163    5.60%

         TransAmerica Life Insurance         2,714,130    4,071,194    7.25%
</TABLE>

         The Stable  Asset Fund also  includes  assets  held in the Mellon  Bank
         Temporary Investment Fund (TIF) which are used to satisfy any liquidity
         needs.  The TIF also serves as a  temporary  account to hold funds from
         maturing interests.

                                                     Page 10
<PAGE>
Participant Accounts
- --------------------

Each  individual's  investment  in the funds is  recorded  in their  participant
account on a unit value basis with the  exception of MCI Common Stock Fund which
is recorded on a per share basis.  The Plan is  processed  on a daily  valuation
basis.

Participants  may  transfer  all  or  part  of the  balance  in  their  Elective
Contributions  and related  earnings from one fund to another once each calendar
month.  Participants  who are 100%  vested  are  permitted  to  diversify  their
Matching  Contributions  balance  as of the prior  year end once per Plan  Year.
During  1997  and  1996,  464,526  and  284,842  shares  of  MCI  Communications
Corporation Common Stock at a fair market value on the  diversification  date of
$17,777,484 and $7,950,763,  respectively,  were  transferred  from the Employer
Matching  Contributions accounts to the Elective Contributions accounts pursuant
to these  provisions.  Participants  may change the  allocation  of their future
contributions   among  the  funds  with   unlimited   frequency.   Participants'
allocations are affected by the last change placed prior to payroll processing.

Certain  participants  have the right to diversify a portion of their account in
the ESOP,  Part I of the Exempt Plan, and transfer that portion of their account
to the 401(k).  Participants in the ESOP, who have attained at least 55 years of
age and have been a participant in the ESOP for at least 10 years,  are eligible
to diversify  under these  provisions.  During 1997 and 1996,  14,045 and 36,696
shares of MCI Communications  Corporation Common Stock at a fair market value on
the  diversification   date  of  $537,674  and  $940,335,   respectively,   were
transferred from the ESOP to the 401(k) pursuant to these provisions.

Participant Loans
- -----------------

The Plan allows  participants  to borrow up to  one-half  of the vested  account
balance (or $50,000,  whichever is less).  The minimum loan amount is $1,000 and
the minimum term of a loan is one year. The maximum term of a loan is five years
for a general purpose loan and fifteen years for a primary  residence loan. Only
one loan of each type, general purpose and primary residence, may be outstanding
at any time. The Plan charges a $30 origination fee for loans. Loan proceeds are
disbursed  pro rata from each of the  participants'  investment  funds,  and are
repaid through  biweekly  payroll  deductions.  Loan repayments of principal and
interest are invested based on the participants'



                                                       Page 11
<PAGE>
current  investment  elections.  Interest  rates for new  loans  are  determined
monthly  based on the prime rate as published on the first  business day of each
month in THE WALL STREET JOURNAL,  plus one percentage  point. The interest rate
is fixed  for the term of the loan.  Loans  can be  repaid in full,  at any time
prior to  maturity,  by a cashier's or  certified  check.  During the Plan years
ended  December 31, 1997 and 1996,  $14,233,400  and  $13,001,099  in loans were
disbursed and principal  repayments of $8,884,166 and $7,284,330,  respectively,
were made.

Participant Benefit Payments
- ----------------------------

Distribution  of the benefits in a  participant's  Plan account is normally made
only after the participant ceases to be an employee of the Company. However, the
account of a  participant's  Elective  Contributions  may be withdrawn  prior to
termination  of  employment  if the  participant  is  under  age 59 1/2  and can
demonstrate an economic hardship (as defined in the Plan). A participant who has
attained   age  59  1/2  may  withdraw  all  or  any  portion  of  his  Elective
Contributions account in accordance with the terms of the Plan. Upon termination
of employment,  a participant receives all vested assets in accounts established
on his behalf under the Plan. Non-vested portions of a terminated  participant's
account are forfeited and used to offset future Company matching  contributions.
Participants who terminate  employment and elect to keep their funds in the Plan
are charged a $20 annual  account  maintenance  fee.  The Plan  provides for the
automatic  distribution in a lump sum of terminated  participant accounts with a
vested balance of $3,500 or less. This  distribution  generally occurs no sooner
than six months after the  participant's  termination of employment  date. As of
December 31, 1997 and 1996, forfeitures included in the Plan were $1,028,659 and
$120,854,  respectively, which included 23,592 and 3,211 forfeited shares of MCI
Communications  Corporation  Common  Stock,  at year-end  fair market  values of
$1,010,040 and $104,974, respectively.

Plan Administration
- -------------------

The Plan is not a defined benefit plan and,  accordingly,  Plan benefits are not
guaranteed by the Pension Benefit Guaranty Corporation.  The Company is the Plan
Administrator  and has appointed an  Administrative  Committee to administer the
Plan.  The  Administrative   Committee  is  responsible  for  carrying  out  the
provisions  of the Plan and may employ such  experts as deemed  necessary.  Plan
assets are held by the trustee, Mellon Bank, N.A. of Pittsburgh, Pennsylvania.
The recordkeeper for the Plan

                                                       Page 12
<PAGE>
is Putnam  Investments,  Inc. The Company  reserves its rights under the Plan to
discontinue its  contributions  and to terminate the Plan at any time. Upon such
termination,  all  amounts  funded  shall  become  nonforfeitable  and  shall be
provided  for and paid from the  Plan's  trust in  accordance  with the order of
priority set forth in Section 4044 of ERISA.  The Company has not  expressed any
intent to discontinue its contributions nor to terminate the Plan.

The Plan's  holdings of MCI  Communications  Corporation  Common Stock,  various
Putnam Investments,  Inc. mutual funds, a Mellon Bank mutual fund and collective
trust account, and loans to participants are party-in-interest investments.


NOTE 2 - DESCRIPTION OF ACCOUNTING PRINCIPLES AND PRACTICES

The preparation of financial  statements in conformity  with generally  accepted
accounting principles requires management to make estimates and assumptions that
affect the reported amounts in the financial statements, such as those regarding
fair value. Actual results could differ from those estimates.

The  financial  statements  for the Plan are  prepared on the  accrual  basis of
accounting.

The Plan's  distribution of the Company's Common Stock to participants is at the
quoted current market price as of the distribution  date. The difference between
the fair market value on the date of distribution  and the carrying value of the
distributed  shares is recorded as a net gain or loss on  disposition  of common
stock. Purchase and sales of securities are recorded on the trade date.

The Plan's interest in registered  investment  companies and employer securities
are stated at fair value,  measured by the quoted current market price. Units in
collective  trusts are valued at the net asset  value as reported by such trusts
at the end of each period. Funds invested in guaranteed investment contracts are
stated at  contract  value,  measured  as cost  plus  contributions  and  earned
interest  income less  withdrawals  and account  maintenance  fees. The Plan has
adopted American Institute of Certified Public Accountants Statement of Position
94-4,  "Reporting of  Investment  Contracts  Held by Health and Welfare  Benefit
Plans and Defined Contribution Pension Plans." Defined contribution plans are to
report  fully-benefit  responsive  investment contracts at contract value, which
may or may not be equal to fair value,  and all other  investment  contracts  at
fair value. All guaranteed investment contracts


                                                       Page 13
<PAGE>
held by the Plan at December  31, 1997 and 1996 were  fully-benefit  responsive,
and therefore are valued at contract value.

Participant loans are valued at cost which approximates fair value.

Benefits payments are recorded when paid.

Administrative expenses of the Plan are paid by the Company.


NOTE 3 - MASTER TRUST

The  Company  established  the  Master  Trust for the  purpose  of  facilitating
administration  of the Plan.  The Master  Trust is intended  to be a  tax-exempt
trust within the meaning of Section  501(a) of the Internal  Revenue  Code.  The
administration  of the Master Trust is the  responsibility  of the trustee.  All
Plan investments are included in the Master Trust.

The Master Trust consists of a pool of individual investments in which the Plan,
the Non-Exempt  Plan, the Darome  Teleconferencing,  Inc. 401(k) Plan (effective
November 20, 1996), the Systemhouse Inc. 401(k) Savings Plan (effective  January
1, 1997), and the MCI Wireless,  Inc.  Employee Savings Plan (effective April 9,
1997) have shared  participation  through Master Trust Units. Net assets and net
investment  gains and losses are allocated to each  participating  plan based on
units of  participation  held by the respective  plans.  Each unit  represents a
specific  interest  in the Master  Trust.  The Plan's  specific  interest in the
Master Trust of $1,041,774,386 and $713,959,033 represents approximately 84% and
87% of the net  assets of the Master  Trust as of  December  31,  1997 and 1996,
respectively.


















                                                       Page 14
<PAGE>
The fund information below presents the percentage  interest of each plan in the
Master Trust using specific identification:
<TABLE>
<CAPTION>


                                                                                         Percentage Interest
                                               Master Trust                              -------------------
         Plan Name                          Investment Account                        12/31/97         12/31/96
- ---------------------            ----------------------------------                   --------         --------
<S>                              <C>                                                   <C>               <C>   

MCI Communications               EuroPacific Growth Fund                                89.07%           88.39%
  Corporation                    Dreyfus Basic 500 Stock Index Fund                     87.94%           88.44%
  401(k) Plan                    Putnam Voyager Fund                                    84.79%           90.92%
  For Exempt                     Putnam Balanced Fund                                   72.91%           86.21%
  Employees                      Stable Asset Fund                                      80.32%           86.40%
  EIN: 52-0886267                Putnam New Opportunities Fund                          75.97%           88.34%
  Plan No.: 001                  MCI Common Stock Fund                                  86.83%           85.88%
                                 Participant Loans                                      78.58%           80.73%

MCI Communications               EuroPacific Growth Fund                                09.54%           11.33%
 Corporation                     Dreyfus Basic 500 Stock Index Fund                     10.34%           11.41%
 401(k) Plan                     Putnam Voyager Fund                                    07.86%           09.08%
 For Non-Exempt                  Putnam Balanced Fund                                   09.74%           13.25%
 Employees                       Stable Asset Fund                                      11.94%           13.35%
 EIN: 52-0886267                 Putnam New Opportunities Fund                          08.77%           11.60%
 Plan No.: 003                   MCI Common Stock Fund                                  13.17%           14.12%
                                 Participant Loans                                      17.60%           19.18%

Darome                           EuroPacific Growth Fund                                00.22%           00.28%
 Teleconferencing,               Dreyfus Basic 500 Stock Index Fund                     00.14%           00.15%
 Inc. 401(k) Plan                Putnam Voyager Fund                                    00.02%           00.00%
 EIN: 13-2745892                 Putnam Balanced Fund                                   00.18%           00.53%
 Plan No.: 020                   Stable Asset Fund                                      00.18%           00.25%
                                 Putnam New Opportunities Fund                          00.07%           00.06%
                                 MCI Common Stock Fund                                  00.00%           00.00%
                                 Participant Loans                                      00.12%           00.09%

Systemhouse Inc.                 EuroPacific Growth Fund                                01.12%
 401(k) Savings Plan             Dreyfus Basic 500 Stock Index Fund                     00.93%
 EIN: 13-2745892                 Putnam Voyager Fund                                    06.62%
 Plan No.: 030                   Putnam Balanced Fund                                   16.15%
                                 Stable Asset Fund                                      07.20%
                                 Putnam New Opportunities Fund                          15.16%
                                 MCI Common Stock Fund                                  00.00%
                                 Participant Loans                                      03.02%

MCI Wireless, Inc.               EuroPacific Growth Fund                                00.05%
 Employee Savings                Dreyfus Basic 500 Stock Index Fund                     00.65%
 Plan                            Putnam Voyager Fund                                    00.71%
 EIN: 13-2745892                 Putnam Balanced Fund                                   01.02%
 Plan No.: 040                   Stable Asset Fund                                      00.36%
                                 Putnam New Opportunities Fund                          00.03%
                                 MCI Common Stock Fund                                  00.00%
                                 Participant Loans                                      00.68%
</TABLE>

The following  presents the net trust assets  available for benefits and changes
in net trust  assets  available  for  benefits for the Master Trust in which the
Plan, the Non-Exempt  Plan, the Darome  Teleconferencing,  Inc. 401(k) Plan, the
Systemhouse  Inc.  401(k)  Savings  Plan,  and the MCI Wireless,  Inc.  Employee
Savings Plan participate.



                                                       Page 15


<PAGE>

<TABLE>
<CAPTION>

                                       MCI COMMUNICATIONS CORPORATION
                                      DEFINED CONTRIBUTION MASTER TRUST
                   STATEMENT OF NET ASSETS AVAILABLE FOR BENEFITS, WITH FUND INFORMATION
                                            DECEMBER 31, 1997

                                                               EuroPacific     Dreyfus        Putnam        Stable
                                                                 Growth       Basic 500       Voyager       Asset
                                                                  Fund       Stock Index       Fund          Fund
              ASSETS                                          ------------- ------------- ------------- -------------
              ------
<S>                                                           <C>           <C>           <C>           <C>         
Employer contributions receivable                             $          0  $          0  $          0  $          0

Non-interest bearing cash                                              165             0         7,162           391

Other receivables                                                   12,055       107,970        33,402        27,276

Investments, at fair value:
  Common stock                                                           0             0             0             0
  Common/collective trusts                                               0        17,727             0    10,811,659
  Registered investment companies                               40,233,423   128,956,690 * 185,135,550 *           0
  Participant loans                                                      0             0             0             0

Investments, at contract value:
  Value of guaranteed investment contracts                               0             0             0   116,687,944 *
                                                              ------------- ------------- ------------- -------------
Total trust assets                                              40,245,643   129,082,387   185,176,114   127,527,270
                                                              ------------- ------------- ------------- -------------
            LIABILITIES
            -----------
Operating payables                                                  12,046       107,277        32,760       568,342
                                                              ------------- ------------- ------------- -------------

Net trust assets available for benefits                       $ 40,233,597  $128,975,110  $185,143,354  $126,958,928
                                                              ============= ============= ============= =============
Participating Plan Interests
- ----------------------------
  MCI 401(k) Plan for Exempt Employees                        $ 35,838,466  $113,405,308  $156,994,098  $101,982,553
  MCI 401(k) Plan for Non-Exempt Employees                       3,836,649    13,339,904    14,546,377    15,154,822
  Darome Teleconferencing, Inc. 401(k) Plan                         90,314       180,597        32,835       223,208
  Systemhouse Inc. 401(k) Savings Plan                             449,377     1,204,697    12,250,898     9,136,249
  MCI Wireless Inc. Employees Savings Plan                          18,791       844,604     1,319,146       462,096
                                                              ------------- ------------- ------------- -------------
Total                                                         $ 40,233,597  $128,975,110  $185,143,354  $126,958,928
                                                              ============= ============= ============= =============

*  Investment represents 5% or more of the Trust's net assets.
</TABLE>


                                     Page 16
<PAGE>
<TABLE>
<CAPTION>
                         MCI COMMUNICATIONS CORPORATION
                        DEFINED CONTRIBUTION MASTER TRUST
      STATEMENT OF NET ASSETS AVAILABLE FOR BENEFITS, WITH FUND INFORMATION
                                DECEMBER 31, 1997

                                                     Putnam        Putnam         MCI
                                                      New         Balanced      Common     Participant
                                                 Opportunities   Retirement      Stock        Loans          Total
        ASSETS                                   ------------- ------------- ------------- ------------ ---------------
        ------
<S>                                              <C>           <C>           <C>           <C>          <C>           
Employer contributions receivable                $          0  $          0  $      1,857  $         0  $        1,857

Non-interest bearing cash                              48,356         5,153             1            0          61,228

Other receivables                                     193,132         1,312       182,707            0         557,854

Investments, at fair value:
  Common stock                                              0             0   565,998,991 *          0     565,998,991
  Common/collective trusts                                  0             0        13,545            0      10,842,931
  Registered investment companies                  93,649,233 *  62,254,492 *           0            0     510,229,388
  Participant loans                                         0             0             0   32,237,962      32,237,962

Investments, at contract value:
  Value of guaranteed investment contracts                  0             0             0            0     116,687,944
                                                 ------------- ------------- ------------- ------------ ---------------
Total trust assets                                 93,890,721    62,260,957   566,197,101   32,237,962   1,236,618,155
                                                 ------------- ------------- ------------- ------------ ---------------
            LIABILITIES
            -----------
Operating payables                                    192,427           825         1,379            0         915,056
                                                 ------------- ------------- ------------- ------------ ---------------

Net trust assets available for benefits          $ 93,698,294  $ 62,260,132  $566,195,722  $32,237,962  $1,235,703,099
                                                 ============= ============= ============= ============ ===============
Participating Plan Interests
- ----------------------------
  MCI 401(k) Plan for Exempt Employees           $ 71,182,035  $ 45,391,628  $491,650,063  $25,330,235  $1,041,774,386
  MCI 401(k) Plan for Non-Exempt Employees          8,221,262     6,065,509    74,545,659    5,674,594     141,384,776
  Darome Teleconferencing, Inc. 401(k) Plan            66,075       112,924             0       38,902         744,855
  Systemhouse Inc. 401(k) Savings Plan             14,204,310    10,056,167             0      974,027      48,275,725
  MCI Wireless Inc. Employees Savings Plan             24,612       633,904             0      220,204       3,523,357
                                                 ------------- ------------- ------------- ------------ ---------------
Total                                            $ 93,698,294  $ 62,260,132  $566,195,722  $32,237,962  $1,235,703,099
                                                 ============= ============= ============= ============ ===============

*  Investment represents 5% or more of the Trust's net assets.
</TABLE>


                                                  Page 17
<PAGE>
<TABLE>
<CAPTION>
                                       MCI COMMUNICATIONS CORPORATION
                        DEFINED CONTRIBUTION MASTER TRUST
                   STATEMENT OF NET ASSETS AVAILABLE FOR BENEFITS, WITH FUND INFORMATION
                                            DECEMBER 31, 1996

                                                               EuroPacific     Dreyfus       Putnam        Stable
                                                                 Growth       Basic 500      Voyager       Asset
                                                                  Fund       Stock Index      Fund          Fund
              ASSETS                                          ------------- ------------- ------------- -------------
              ------
Contributions receivable:
<S>                                                           <C>           <C>           <C>           <C>         
  Participant                                                 $        727  $        427  $        838  $        182
  Employer                                                               0             0             0             0
                                                              ------------- ------------- ------------- -------------
    Total contributions receivable                                     727           427           838           182

Non-interest bearing cash                                                0             0            16       628,668

Other receivables                                                      938        24,358        34,113     7,882,658

Investments, at fair value:
  Common stock                                                           0             0             0             0
  Common/collective trusts                                             227        27,198         4,705     2,136,200
  Registered investment companies                               25,677,109    77,615,093 * 133,656,939 *           0
  Participant loans                                                      0             0             0             0

Investments, at contract value:
  Value of guaranteed investment contracts                               0             0             0    94,780,330 *
                                                              ------------- ------------- ------------- -------------
Total trust assets                                              25,679,001    77,667,076   133,696,611   105,428,038
                                                              ------------- ------------- ------------- -------------
            LIABILITIES
            -----------
Operating payables                                                  21,541        24,835        34,943       158,253
                                                              ------------- ------------- ------------- -------------

Net trust assets available for benefits                       $ 25,657,460  $ 77,642,241  $133,661,668  $105,269,785
                                                              ============= ============= ============= =============
Participating Plan Interests
- ----------------------------
  MCI 401(k) Plan for Exempt Employees                        $ 22,678,619  $ 68,670,124  $121,528,239  $ 90,950,784
  MCI 401(k) Plan for Non-Exempt Employees                       2,907,841     8,857,738    12,133,429    14,054,922
  Darome Teleconferencing, Inc. 401(k) Plan                         71,000       114,379             0       264,079
                                                              ------------- ------------- ------------- -------------
Total                                                         $ 25,657,460  $ 77,642,241  $133,661,668  $105,269,785
                                                              ============= ============= ============= =============

*  Investment represents 5% or more of the Trust's net assets.
</TABLE>


                                                  Page 18
<PAGE>
<TABLE>
<CAPTION>
                         MCI COMMUNICATIONS CORPORATION
                        DEFINED CONTRIBUTION MASTER TRUST
                    STATEMENT OF NET ASSETS AVAILABLE FOR BENEFITS, WITH FUND INFORMATION
                               DECEMBER 31, 1996

                                                      Putnam        Putnam         MCI
                                                       New         Balanced      Common     Participant
                                                  Opportunities   Retirement      Stock        Loans         Total
        ASSETS                                    ------------- ------------- ------------- ------------- -------------
        ------
Contributions receivable:
<S>                                               <C>           <C>           <C>           <C>           <C>         
  Participant                                     $      1,348  $        288  $      1,135  $          0  $      4,945
  Employer                                                   0             0         2,199             0         2,199
                                                  ------------- ------------- ------------- ------------- -------------
    Total contributions receivable                       1,348           288         3,334             0         7,144

Non-interest bearing cash                                    0             0             0             0       628,684

Other receivables                                       74,230         4,712       109,760             0     8,130,769

Investments, at fair value:
  Common stock                                               0             0   369,352,337 *           0   369,352,337
  Common/collective trusts                              43,655         4,536         8,844             0     2,225,365
  Registered investment companies                   52,455,498*   29,329,101             0             0   318,733,740
  Participant loans                                          0             0             0    26,210,945    26,210,945

Investments, at contract value:
  Value of guaranteed investment contracts                   0             0             0             0    94,780,330
                                                  ------------- ------------- ------------- ------------- -------------
Total trust assets                                  52,574,731    29,338,637   369,474,275    26,210,945   820,069,314
                                                  ------------- ------------- ------------- ------------- -------------
            LIABILITIES
            -----------
Operating payables                                      75,514         4,993            67             0       320,146
                                                  ------------- ------------- ------------- ------------- -------------

Net trust assets available for benefits           $ 52,499,217  $ 29,333,644  $369,474,208  $ 26,210,945  $819,749,168
                                                  ============= ============= ============= ============= =============
Participating Plan Interests
- ----------------------------
  MCI 401(k) Plan for Exempt Employees            $ 46,378,741  $ 25,289,835  $317,302,646  $ 21,160,045  $713,959,033
  MCI 401(k) Plan for Non-Exempt Employees           6,090,028     3,887,960    52,171,562     5,028,114   105,131,594
  Darome Teleconferencing, Inc. 401(k) Plan             30,448       155,849             0        22,786       658,541
                                                  ------------- ------------- ------------- ------------- -------------
Total                                             $ 52,499,217  $ 29,333,644  $369,474,208  $ 26,210,945  $819,749,168
                                                  ============= ============= ============= ============= =============

*        Investment represents 5% or more of the Trust's net assets.
</TABLE>

                                                  Page 19


<PAGE>

<TABLE>
<CAPTION>

                                       MCI COMMUNICATIONS CORPORATION
                                      DEFINED CONTRIBUTION MASTER TRUST
              STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS, WITH FUND INFORMATION
                                    FOR THE YEAR ENDED DECEMBER 31, 1997


                                              EuroPacific     Dreyfus       Putnam        Stable        Putnam
                                                Growth      Basic 500       Voyager       Asset          New
ADDITIONS                                        Fund       Stock Index      Fund          Fund      Opportunities
- ---------                                    ------------- ------------- ------------- ------------- -------------
Contributions:
<S>                                          <C>           <C>           <C>           <C>           <C>         
  Participants                               $  9,942,547  $ 15,064,398  $ 21,978,415  $ 10,388,735  $ 17,446,544
  Non-cash employer                                     0             0             0             0             0
  Rollovers                                       973,904     1,558,008     1,679,565     1,707,440     1,982,320
  Transfers from ESOP                              18,800        51,461        17,738        42,465         9,582
                                             ------------- ------------- ------------- ------------- -------------
    Total contributions                        10,935,251    16,673,867    23,675,718    12,138,640    19,438,446
                                             ------------- ------------- ------------- ------------- -------------
Earnings on investments:
  Interest on participant loans                         0             0             0             0             0
  Interest on guaranteed investment contracts           0             0             0     7,457,506             0
  Dividends on common stock                             0             0             0             0             0
  Net realized gain on sale of common stock             0             0             0             0             0
  Unrealized appreciation of common stock               0             0             0             0             0
  Net realized/unrealized gain from registered
    investment companies                        2,116,030    27,006,914    35,525,129             0    14,666,957
                                             ------------- ------------- ------------- ------------- -------------
    Total earnings on investments               2,116,030    27,006,914    35,525,129     7,457,506    14,666,957
                                             ------------- ------------- ------------- ------------- -------------
Total additions                                13,051,281    43,680,781    59,200,847    19,596,146    34,105,403

DEDUCTIONS
- -----------
Participant benefit payments                    1,863,592     4,773,396     8,686,220     9,809,285     5,269,496
Account maintenance fees                            7,419        15,209        24,899        21,925        13,762
                                             ------------- ------------- ------------- ------------- -------------
Net increase (decrease)                        11,180,270    38,892,176    50,489,728     9,764,936    28,822,145

Transfers from (to):
  Other master trust investment accounts        2,791,973    11,033,346   (11,850,551)   (1,999,058)   (2,569,972)
  Net loans                                       (87,194)     (675,645)   (1,035,065)     (828,565)     (249,147)
  Western Union International Collectively
    Bargained Plan                                      0        33,220        88,017       112,372         6,361
  Systemhouse Inc. 401(k) Savings Plan                  0             0    10,958,088    10,325,999    13,329,918
  MCI Wireless, Inc. Employees Savings Plan             0       674,981     1,036,215       555,849             0
  Other non-related plans                         691,088     1,374,791     1,795,254     3,757,610     1,859,772

Net trust assets available for benefits, at
  beginning of year                            25,657,460    77,642,241   133,661,668   105,269,785    52,499,217
                                             ------------- ------------- ------------- ------------- -------------
Net trust assets available for benefits, at
  end of year                                $ 40,233,597  $128,975,110  $185,143,354  $126,958,928  $ 93,698,294

                                             ============= ============= ============= ============= =============
</TABLE>


                                                        Page 20
<PAGE>
<TABLE>
<CAPTION>
                                   MCI COMMUNICATIONS CORPORATION
                                  DEFINED CONTRIBUTION MASTER TRUST
          STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS, WITH FUND INFORMATION
                                FOR THE YEAR ENDED DECEMBER 31, 1997


                                                 Putnam          MCI
                                                Balanced        Common     Participant
                                               Retirement       Stock         Loans          Total
ADDITIONS                                    ------------- -------------- ------------- ---------------
- ---------
Contributions:
<S>                                          <C>           <C>            <C>           <C>           
  Participants                               $  9,118,460  $  35,595,332  $          0  $  119,534,431
  Non-cash employer                                     0     54,541,014             0      54,541,014
  Rollovers                                     1,213,115      5,529,325             0      14,643,677
  Transfers from ESOP                              16,524        416,859             0         573,429
                                             ------------- -------------- ------------- ---------------
    Total contributions                        10,348,099     96,082,530             0     189,292,551
                                             ------------- -------------- ------------- ---------------
Earnings on investments:
  Interest on participant loans                         0              0     2,446,123       2,446,123
  Interest on guaranteed investment contracts           0              0             0       7,457,506
  Dividends on common stock                             0        657,327             0         657,327
  Net realized gain on sale of common stock             0      2,315,418             0       2,315,418
  Unrealized appreciation of common stock               0    125,184,767             0     125,184,767
  Net realized/unrealized gain from registered
     investment companies                       7,946,598              0             0      87,261,628
                                             ------------- -------------- ------------- ---------------
     Total earnings on investments              7,946,598    128,157,512     2,446,123     225,322,769
                                             ------------- -------------- ------------- ---------------
Total additions                                18,294,697    224,240,042     2,446,123     414,615,320

DEDUCTIONS
Participant benefit payments                     3,621,475    22,637,430     2,862,352      59,523,246
Account maintenance fees                             9,427        62,108             0         154,749
                                              ------------- ------------- ------------- ---------------
Net increase (decrease)                         14,663,795   201,540,504      (416,229)    354,937,325

Transfers from (to):
  Other master trust investment accounts         6,462,184    (3,867,922)            0               0
  Net loans                                       (253,263)   (1,759,192)    4,888,071               0
  Western Union International Collectively
    Bargained Plan                                       0       105,416        15,072         360,458
  Systemhouse Inc. 401(k) Savings Plan          10,426,100             0       950,004      45,990,109
  MCI Wireless, Inc. Employees Savings Plan        563,629             0       172,261       3,002,935
  Other non-related plans                        1,064,043       702,708       417,838      11,663,104

Net trust assets available for benefits, at
  beginning of year                             29,333,644   369,474,208    26,210,945     819,749,168
                                              ------------- ------------- ------------- ---------------
Net trust assets available for benefits, at
  end of year                                 $ 62,260,132  $566,195,722  $ 32,237,962  $1,235,703,099
                                              ============= ============= ============= ===============
</TABLE>



                                            Page 21
<PAGE>
<TABLE>
<CAPTION>
                                   MCI COMMUNICATIONS CORPORATION
                                  DEFINED CONTRIBUTION MASTER TRUST
          STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS, WITH FUND INFORMATION
                                FOR THE YEAR ENDED DECEMBER 31, 1996

                                              EuroPacific      Dreyfus        Putnam       Stable        Putnam
                                                 Growth       Basic 500       Voyager      Asset           New
                                                  Fund       Stock Index       Fund         Fund      Opportunities
ADDITIONS                                     ------------- ------------- ------------- ------------- -------------
- ---------
Contributions:
<S>                                           <C>           <C>           <C>           <C>           <C>         
  Participants                                $  7,252,491  $ 11,138,992  $ 21,643,332  $ 10,657,509  $ 14,051,271
  Non-cash employer                                      0             0             0             0             0
  Rollovers                                        738,656       722,245     1,607,984       906,949     1,969,435
  Transfers from ESOP                               84,030        86,897       334,056        92,767       343,735
                                              ------------- ------------- ------------- ------------- -------------
    Total contributions                          8,075,177    11,948,134    23,585,372    11,657,225    16,364,441
                                              ------------- ------------- ------------- ------------- -------------
Earnings on investments:
  Interest on participant loans                          0             0             0             0             0
  Interest on guaranteed investment contracts            0             0             0     7,188,820             0
  Dividends on common stock                              0             0             0             0             0
  Net realized gain on sale of common stock              0             0             0             0             0
  Unrealized appreciation of common stock                0             0             0             0             0
  Net realized/unrealized gain from registered
    investment companies                         3,598,035    14,154,926    14,497,797             0     3,295,115
                                              ------------- ------------- ------------- ------------- -------------
    Total earnings on investments                3,598,035    14,154,926    14,497,797     7,188,820     3,295,115
                                              ------------- ------------- ------------- ------------- -------------
Total additions                                 11,673,212    26,103,060    38,083,169    18,846,045    19,659,556

DEDUCTIONS

Participant benefit payments                       984,231     3,597,461     6,993,973     8,873,275     2,135,703

Account maintenance fees                             6,163        14,225        27,072        27,308        11,396
                                              ------------- ------------- ------------- ------------- -------------
Net increase                                    10,682,818    22,491,374    31,062,124     9,945,462    17,512,457

Transfers from (to):
  Other master trust investment accounts           137,996    (2,725,774)   (3,558,778)   (9,805,983)    6,817,424
  Net loans                                        (96,843)     (788,574)   (1,439,817)   (1,215,837)     (313,333)
  Western Union International Collectively
    Bargained Plan                                     215        38,526        41,125        42,069            88
  Darome Teleconferencing, Inc. 401(k) Plan         67,035       107,960             0       259,972        31,009

Net trust assets available for benefits, at
  beginning of year                             14,866,239    58,518,729   107,557,014   106,044,102    28,451,572
                                              ------------- ------------- ------------- ------------- -------------
Net trust assets available for benefits, at
  end of year                                 $ 25,657,460  $ 77,642,241  $133,661,668  $105,269,785  $ 52,499,217

                                               ===========   ===========   ===========    ==========   ===========
</TABLE>



                                     Page 22
<PAGE>
<TABLE>
<CAPTION>
                         MCI COMMUNICATIONS CORPORATION
                                  DEFINED CONTRIBUTION MASTER TRUST
          STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS, WITH FUND INFORMATION
                      FOR THE YEAR ENDED DECEMBER 31, 1996

                                                  Putnam         MCI
                                                 Balanced       Common     Participant
                                                Retirement      Stock         Loans         Total
ADDITIONS                                     ------------- ------------- ------------- -------------
- ---------

Contributions:
<S>                                           <C>           <C>           <C>           <C>         
  Participants                                $  7,166,398  $ 16,670,642  $          0  $ 88,580,635
  Non-cash employer                                      0    42,788,843             0    42,788,843
  Rollovers                                        648,448       977,692             0     7,607,409
  Transfers from ESOP                              123,300        53,920             0     1,118,705
                                              ------------- ------------- ------------- -------------
    Total contributions                          7,974,146    60,491,097             0   140,095,592
                                              ------------- ------------- ------------- -------------
Earnings on investments:
  Interest on participant loans                          0             0     1,978,777     1,978,777
  Interest on guaranteed investment contracts            0             0             0     7,188,820
  Dividends on common stock                              0       525,391             0       525,391
  Net realized gain on sale of common stock              0     1,003,548             0     1,003,548
  Unrealized appreciation of common stock                0    69,875,942             0    69,875,942
  Net realized/unrealized gain from registered
    investment companies                         3,239,957             0             0    38,785,830
                                              ------------- ------------- ------------- -------------
     Total earnings on investments               3,239,957    71,404,881     1,978,777   119,358,308
                                              ------------- ------------- ------------- -------------
Total additions                                 11,214,103   131,895,978     1,978,777   259,453,900

DEDUCTIONS

Participant benefit payments                     1,520,211    16,137,642     1,801,966    42,044,462
Account maintenance fees                             7,390        47,232             0       140,786
                                              ------------- ------------- ------------- -------------
Net increase                                     9,686,502   115,711,104       176,811   217,268,652

Transfers from (to):
  Other master trust investment accounts           575,236     8,559,879             0             0
  Net loans                                       (182,289)   (1,514,441)    5,551,134             0
  Western Union International Collectively
    Bargained Plan                                      29        84,839        10,786       217,677
  Darome Teleconferencing, Inc. 401(k) Plan        149,708             0        24,881       640,565

Net trust assets available for benefits, at
  beginning of year                             19,104,458   246,632,827    20,447,333   601,622,274
                                              ------------- ------------- ------------- -------------
Net trust assets available for benefits, at
  end of year                                 $ 29,333,644  $369,474,208  $ 26,210,945  $819,749,168
                                              ============= ============= ============= =============
</TABLE>


                                               Page 23


<PAGE>


<TABLE>
<CAPTION>
                                   MCI COMMUNICATIONS CORPORATION
                                  401(k) PLAN FOR EXEMPT EMPLOYEES
                                          EIN:  52-0886267
                               SCHEDULE OF MASTER TRUST PARTICIPATION


                             Current Value of Interest                         Year Ended December 31, 1997
                             ----------------------------- ------------------------------------------------------------------------
                                                                            Participant
                              December 31,    December 31,                  Benefit                                     Net
Investment Account Interest:   1997             1996         Contributions  Payments        Net Loans     Net Transfers Appreciation
                             --------------- -------------- -------------- --------------- ------------- ------------- -------------

<S>                          <C>             <C>            <C>            <C>             <C>           <C>           <C>         
EuroPacific Growth Fund      $   35,838,466  $  22,678,619  $   9,734,320  $    1,643,232  $    (40,947) $   3,261,215 $  1,848,491
Dreyfus Basic 500 Stock Index   113,405,308     68,670,124     14,627,450       4,217,236      (521,080)    11,023,980   23,822,070
Putnam Voyager Fund             156,994,098    121,528,239     20,775,145       6,730,821      (760,577)    (7,669,157   29,851,269
Putnam Balanced Retirement Fund  45,391,628     25,289,835      8,747,433       1,794,953      (141,020)     7,872,743    5,417,590
Stable Asset Fund               101,982,553     90,950,784     10,018,659       7,106,795      (632,694)     2,729,974    6,022,625
Putnam New Opportunities         71,182,035     46,378,741     16,980,316       3,295,044      (117,602)       638,375   10,597,249
MCI Common Stock                491,650,063    317,302,646     82,117,194      18,408,317    (1,169,336)     1,025,205  110,782,671
Participant Loans
(interest rates range 6% - 11%)  25,330,235     21,160,045              0       2,071,599     3,383,256        892,555    1,965,978
                               ------------ -------------- -------------- --------------- ------------ -------------- --------------
       Total                 $1,041,774,386  $ 713,959,033  $ 163,000,517  $   45,267,997  $          0  $  19,774,890 $190,307,943
                             ============== ============== ============== =============== ============= ============== =============
</TABLE>














                                     Page 24


<PAGE>



NOTE 4 - NET ASSETS  AVAILABLE FOR BENEFITS AND CHANGES IN NET ASSETS  AVAILABLE
FOR  BENEFITS BY FUND The net assets  available  for benefits and the changes in
net  assets  among the  Plan's  investment  funds as of and for the years  ended
December 31, 1997 and 1996 are presented on the following pages.






































                                     Page 25


<PAGE>

<TABLE>
<CAPTION>

                         MCI COMMUNICATIONS CORPORATION
                        401(k) PLAN FOR EXEMPT EMPLOYEES
                                 EIN: 52-0886267
      STATEMENT OF NET ASSETS AVAILABLE FOR BENEFITS, WITH FUND INFORMATION
                                DECEMBER 31, 1997

                                                          EuroPacific    Dreyfus        Putnam        Stable
                                                            Growth      Basic 500       Voyager       Asset
                                                             Fund      Stock Index       Fund          Fund
                                                         ------------  ------------  -------------  -------------
              ASSETS
              ------
<S>                                                      <C>          <C>          <C>             <C>         
Employer contribution receivable                         $         0  $          0  $           0  $           0
Other receivables                                             12,055        91,759         32,400         21,910
                                                         ------------  ------------  -------------  -------------
    Total receivables                                         12,055        91,759         32,400         21,910

Non-interest bearing cash                                        147             0          6,073            314

Investments, at fair value:
  Common stock                                                     0             0              0              0
  Common/collective trusts                                         0        40,012              0      8,721,815
  Registered investment companies                         35,827,081   113,274,723 *  156,958,816 *            0
  Participant loans                                                0             0              0              0

Investments, at contract value:
  Value of guaranteed investment contracts                         0             0              0     93,272,062 *
                                                        -------------  ------------  -------------  -------------
Total assets                                              35,839,283   113,406,494    156,997,289    102,016,101
                                                        ------------- -------------  -------------  -------------

            LIABILITIES
            -----------

Operating payables                                               817         1,186          3,191         33,548
                                                        ------------- -------------   ------------  -------------

Net assets available for benefits                       $ 35,838,466  $113,405,308  $ 156,994,098   $101,982,553
                                                        ============= =============  =============  =============



*        Investment represents 5% or more of the Plan's net assets.
</TABLE>





                                               Page 26
<PAGE>
<TABLE>
<CAPTION>
                         MCI COMMUNICATIONS CORPORATION
                        401(k) PLAN FOR EXEMPT EMPLOYEES
                                 EIN: 52-0886267
      STATEMENT OF NET ASSETS AVAILABLE FOR BENEFITS, WITH FUND INFORMATION
                                DECEMBER 31, 1997


                                                     Putnam         Putnam        MCI
                                                       New         Balanced      Common      Participant
                                                  Opportunities   Retirement      Stock         Loans          Total
                                                  ------------- ------------- ------------- ------------ ----------------
              ASSETS
              ------
<S>                                               <C>           <C>           <C>           <C>          <C>            
Employer contribution receivable                  $          0  $          0  $      1,840  $         0  $         1,840
Other receivables                                      180,256         1,243           213            0          339,835
                                                  ------------- ------------- ------------- ------------ ----------------
    Total receivables                                  180,256         1,243         2,053            0          341,675

Non-interest bearing cash                               36,736         3,757             1            0           47,028

Investments, at fair value:
  Common stock                                               0             0   491,637,569 *          0      491,637,569
  Common/collective trusts                                   0             0        11,762            0        8,773,589
  Registered investment companies                   70,967,522 *  45,387,366             0            0      422,415,508
  Participant loans                                          0             0             0   25,330,235       25,330,235

Investments, at contract value:
  Value of guaranteed investment contracts                   0             0             0            0       93,272,062
                                                  ------------- ------------- ------------- ------------ ----------------
Total assets                                        71,184,514    45,392,366   491,651,384   25,330,235    1,041,817,666
                                                  ------------- ------------- ------------- ------------ ----------------

            LIABILITIES
            -----------

Operating payables                                       2,479           738         1,321             0          43,280
                                                  ------------- ------------- ------------- ------------- ---------------

Net assets available for benefits                 $ 71,182,035  $ 45,391,628  $491,650,063  $ 25,330,235  $1,041,774,386
                                                  ============= ============= ============= ============= ===============



*  Investment represents 5% or more of the Plan's net assets.

</TABLE>



                                               Page 27
<PAGE>
<TABLE>
<CAPTION>
                         MCI COMMUNICATIONS CORPORATION
                        401(k) PLAN FOR EXEMPT EMPLOYEES
                                 EIN: 52-0886267
      STATEMENT OF NET ASSETS AVAILABLE FOR BENEFITS, WITH FUND INFORMATION
                                DECEMBER 31, 1996

                                                         EuroPacific     Dreyfus       Putnam        Stable
                                                           Growth       Basic 500      Voyager        Asset
                                                            Fund       Stock Index      Fund         Fund
                                                        ------------- ------------- ------------- -------------
              ASSETS
              ------
Contributions receivable:
<S>                                                      <C>          <C>           <C>            <C>         
  Participant                                            $       638  $        401  $         720  $         65
  Employer                                                         0             0              0             0
Other receivables                                                437        22,434         40,643     6,901,871
                                                         ------------ ------------- -------------- -------------
    Total receivables                                          1,075        22,835         41,364     6,901,936

Non-interest bearing cash                                          0             0             15       543,155

Investments, at fair value:
  Common stock                                                     0             0              0             0
  Common/collective trusts                                       200        24,055          4,278     1,845,630
  Registered investment companies                         22,695,987    68,646,113 *  121,523,940 *           0
  Participant loans                                                0             0              0             0

Investments, at contract value:
  Value of guaranteed investment contracts                         0             0              0    81,784,837 *
                                                        ------------- ------------- -------------- -------------
Total assets                                              22,697,262    68,693,003    121,569,597    91,075,558
                                                        ------------- ------------- -------------- -------------

            LIABILITIES
            -----------

Operating payables                                            18,643        22,879         41,358       124,774
                                                        ------------- ------------- -------------- -------------

Net assets available for benefits                        $22,678,619  $ 68,670,124 $  121,528,239  $ 90,950,784
                                                        ============= ============= ============== =============

*        Investment represents 5% or more of the Plan's net assets.

</TABLE>


                                     Page 28
<PAGE>
<TABLE>
<CAPTION>
                         MCI COMMUNICATIONS CORPORATION
                        401(k) PLAN FOR EXEMPT EMPLOYEES
                                 EIN: 52-0886267
      STATEMENT OF NET ASSETS AVAILABLE FOR BENEFITS, WITH FUND INFORMATION
                                DECEMBER 31, 1996

                                                       Putnam         Putnam         MCI
                                                         New         Balanced       Common      Participant
                                                    Opportunities   Retirement       Stock         Loans         Total
                                                    ------------- ------------- ------------- ------------- -------------
              ASSETS
              ------
Contributions receivable:
<S>                                                 <C>           <C>           <C>            <C>          <C>         
  Participant                                       $      1,149  $        174  $         989  $         0  $      4,136
  Employer                                                     0             0          1,691            0         1,691
Other receivables                                         74,714         4,657         84,104            0     7,128,861
                                                    ------------- ------------- -------------- ------------ -------------
    Total receivables                                     75,863         4,831         86,784            0     7,134,688

Non-interest bearing cash                                      0             0              0            0       543,170

Investments, at fair value:
  Common stock                                                 0             0    317,208,325 *          0   317,208,325
  Common/collective trusts                                38,566         3,911          7,595            0     1,924,235
  Registered investment companies                     46,340,117 *  25,285,749              0            0   284,491,906
  Participant loans                                            0             0              0   21,160,045    21,160,045

Investments, at contract value:
  Value of guaranteed investment contracts                     0             0              0            0    81,784,837
                                                    ------------- ------------- -------------- ------------ -------------
Total assets                                          46,454,546    25,294,491    317,302,704   21,160,045   714,247,206
                                                    ------------- ------------- -------------- ------------ -------------

            LIABILITIES
            -----------

Operating payables                                        75,805         4,656             58            0       288,173
                                                    ------------- ------------- -------------- ------------ -------------

Net assets available for benefits                   $ 46,378,741  $ 25,289,835  $ 317,302,646  $21,160,045  $713,959,033
                                                    ============= ============= ============== ============ =============


*  Investment represents 5% or more of the Plan's net assets.
</TABLE>




                                               Page 29
<PAGE>
<TABLE>
<CAPTION>
                         MCI COMMUNICATIONS CORPORATION
                        401(k) PLAN FOR EXEMPT EMPLOYEES
                                 EIN: 52-0886267
 STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS, WITH FUND INFORMATION
                      FOR THE YEAR ENDED DECEMBER 31, 1997


                                                 EuroPacific    Dreyfus        Putnam       Stable        Putnam
                                                   Growth      Basic 500       Voyager      Asset          New
                                                    Fund      Stock Index       Fund         Fund      Opportunities
ADDITIONS                                      ------------- ------------- ------------- ------------- -------------
- ---------
Contributions:
<S>                                            <C>           <C>           <C>           <C>           <C>         
  Participants                                 $  8,802,024  $ 13,208,076  $ 19,214,622  $  8,362,910  $ 15,088,905
  Non-cash employer                                       0             0             0             0             0
  Rollovers                                         913,573     1,367,913     1,542,785     1,613,284     1,881,829
  Transfers from ESOP                                18,723        51,461        17,738        42,465         9,582
                                               ------------- ------------- ------------- ------------- -------------
    Total contributions                           9,734,320    14,627,450    20,775,145    10,018,659    16,980,316
                                               ------------- ------------- ------------- ------------- -------------
Earnings on investments:
  Interest on participant loans                           0             0             0             0             0
  Interest on guaranteed investment contracts             0             0             0     6,022,625             0
  Dividends on common stock                               0             0             0             0             0
  Net realized gain on sale of common stock               0             0             0             0             0
  Unrealized appreciation of common stock                 0             0             0             0             0
  Net realized/unrealized gain from registered
    investment companies                          1,848,491    23,822,070    29,851,269             0    10,597,249
                                               ------------- ------------- ------------- ------------- -------------
    Total earnings on investments                 1,848,491    23,822,070    29,851,269     6,022,625    10,597,249
                                               ------------- ------------- ------------- ------------- -------------
Total additions                                  11,582,811    38,449,520    50,626,414    16,041,284    27,577,565

DEDUCTIONS
Participant benefit payments                      1,637,882     4,205,945     6,712,709     7,092,247     3,285,391
Account maintenance fees                              5,350        11,291        18,112        14,548         9,653
                                               ------------- ------------- ------------- ------------- -------------
Net increase (decrease)                           9,939,579    34,232,284    43,895,593     8,934,489    24,282,521

Transfers from (to):
  Other master trust investment accounts          2,403,461     9,091,374   (10,444,020)   (1,084,307)   (1,578,564)
  Net loans                                         (40,947)     (521,080)     (760,577)     (632,694)     (117,602)
  Western Union International Collectively
    Bargained Plan                                        0        10,767         8,653        21,553             0
  MCI 401(k) Plan for Non-Exempt Employees          295,566       818,520     1,287,961       913,530       600,134
  Other non-related plans                           562,188     1,103,319     1,478,249     2,879,198     1,616,805

Net assets available for benefits,
  beginning of year                              22,678,619    68,670,124   121,528,239    90,950,784    46,378,741
                                               ------------- ------------- ------------- ------------- -------------
Net assets available for benefits,
  end of year                                  $ 35,838,466  $113,405,308  $156,994,098  $101,982,553  $ 71,182,035
                                               ============= ============= ============= ============= =============
</TABLE>


                                               Page 30
<PAGE>
<TABLE>
<CAPTION>
                         MCI COMMUNICATIONS CORPORATION
                        401(k) PLAN FOR EXEMPT EMPLOYEES
                                 EIN: 52-0886267
 STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS, WITH FUND INFORMATION
                      FOR THE YEAR ENDED DECEMBER 31, 1997

                                                  Putnam         MCI
                                                 Balanced       Common     Participant
                                                Retirement      Stock         Loans          Total
ADDITIONS                                     ------------- ------------- ------------- ---------------
- ---------
Contributions:
<S>                                           <C>           <C>           <C>           <C>           
  Participants                                $  7,656,045  $ 30,178,375  $          0  $  102,510,957
  Non-cash employer                                      0    46,322,911             0      46,322,911
  Rollovers                                      1,074,864     5,234,727             0      13,628,975
  Transfers from ESOP                               16,524       381,181             0         537,674
                                              ------------- ------------- ------------- ---------------
    Total contributions                          8,747,433    82,117,194             0     163,000,517
                                              ------------- ------------- ------------- ---------------
Earnings on investments:
  Interest on participant loans                          0             0     1,965,978       1,965,978
  Interest on guaranteed investment contracts            0             0             0       6,022,625
  Dividends on common stock                              0       569,657             0         569,657
  Net realized gain on sale of common stock              0     1,879,879             0       1,879,879
  Unrealized appreciation of common stock                0   108,333,135             0     108,333,135
  Net realized/unrealized gain from registered
    investment companies                         5,417,590             0             0      71,536,669
                                              ------------- ------------- ------------- ---------------
     Total earnings on investments               5,417,590   110,782,671     1,965,978     190,307,943
                                              ------------- ------------- ------------- ---------------
Total additions                                 14,165,023   192,899,865     1,965,978     353,308,460

DEDUCTIONS
Participant benefit payments                     1,789,007    18,362,540     2,071,599      45,157,320
Account maintenance fees                             5,946        45,777             0         110,677
                                              ------------- ------------- ------------- ---------------
Net increase (decrease)                         12,370,070   174,491,548      (105,621)    308,040,463

Transfers from (to):
  Other master trust investment accounts         6,653,864    (5,041,808)            0               0
  Net loans                                       (141,020)   (1,169,336)    3,383,256               0
  Western Union International Collectively
    Bargained Plan                                       0        31,937        12,420          85,330
  MCI Plan for Non-Exempt Employees                424,782     5,598,912       580,927      10,520,332
  Other non-related plans                          794,097       436,164       299,208       9,169,228

Net assets available for benefits,
  beginning of year                             25,289,835   317,302,646    21,160,045     713,959,033
                                              ------------- ------------- ------------- ---------------
Net assets available for benefits,
  end of year                                 $ 45,391,628  $491,650,063  $ 25,330,235  $1,041,774,386
                                              ============= ============= ============= ===============
</TABLE>



                                               Page 31
<PAGE>
<TABLE>
<CAPTION>
                         MCI COMMUNICATIONS CORPORATION
                        401(k) PLAN FOR EXEMPT EMPLOYEES
                                 EIN: 52-0886267
 STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS, WITH FUND INFORMATION
                      FOR THE YEAR ENDED DECEMBER 31, 1996

                                                  EuroPacific    Dreyfus        Putnam       Stable       Putnam
                                                    Growth      Basic 500       Voyager      Asset          New
                                                     Fund      Stock Index       Fund         Fund      Opportunities
ADDITIONS                                       ------------- ------------- ------------- ------------- -------------
- ---------
Contributions:
<S>                                             <C>           <C>           <C>           <C>           <C>         
  Participants                                  $  6,157,553  $  9,538,036  $ 18,553,560  $  8,382,022  $ 11,735,103
  Non-cash employer                                        0             0             0             0             0
  Rollovers                                          702,527       684,102     1,491,567       829,537     1,892,158
  Transfers from ESOP                                 81,608        82,762       309,314        43,839       291,259
                                                ------------- ------------- ------------- ------------- -------------
    Total contributions                            6,941,688    10,304,900    20,354,441     9,255,398    13,918,520
                                                ------------- ------------- ------------ -------------- -------------
Earnings on investments:
  Interest on participant loans                            0             0             0             0             0
  Interest on guaranteed investment contracts              0             0             0     6,255,490             0
  Dividends on common stock                                0             0             0             0             0
  Net realized gain on sale of common stock                0             0             0             0             0
  Unrealized appreciation of common stock                  0             0             0             0             0
  Net realized/unrealized gain from registered
    investment companies                           3,192,921    12,559,461    13,231,296             0     2,997,747
                                                ------------- ------------- ------------- ------------- -------------
    Total earnings on investments                  3,192,921    12,559,461    13,231,296     6,255,490     2,997,747
                                                ------------- ------------- ------------- ------------- -------------
Total additions                                   10,134,609    22,864,361    33,585,737    15,510,888    16,916,267

DEDUCTIONS

Participant benefit payments                         824,288     3,131,545     6,043,256     7,307,455     1,801,178
Account maintenance fees                               4,306        10,396        19,685        17,938         8,142
                                                ------------- ------------- ------------- ------------- ------------
Net increase                                       9,306,015    19,722,420    27,522,796     8,185,495    15,106,947

Transfers from (to):
  Other master trust investment accounts             200,129    (2,490,292)   (3,365,427)   (9,219,889)    5,968,885
  Net loans                                          (47,687)     (633,926)   (1,081,454)     (837,997)     (235,690)
  Western Union International Collectively
    Bargained Plan                                       164        36,136        38,925        41,454             0
  MCI 401(k) Plan for Non-Exempt Employees           234,530       287,384      (753,759)   (3,210,216)      390,821

Net assets available for benefits,
  beginning of year                               12,985,468    51,748,402    99,167,158    95,991,937    25,147,778
                                                ------------- ------------- ------------- ------------- ------------
Net assets available for benefits,
  end of year                                   $ 22,678,619  $ 68,670,124  $121,528,239  $ 90,950,784  $ 46,378,741
                                                ============= ============= ============= ============= =============
</TABLE>



                                               Page 32
<PAGE>
<TABLE>
<CAPTION>
                         MCI COMMUNICATIONS CORPORATION
                        401(k) PLAN FOR EXEMPT EMPLOYEES
                                (EIN: 52-0886267
 STATEMENT OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS, WITH FUND INFORMATION
                      FOR THE YEAR ENDED DECEMBER 31, 1996


                                                   Putnam         MCI
                                                  Balanced       Common     Participant
                                                 Retirement      Stock         Loans         Total
ADDITIONS                                      ------------- ------------- ------------- -------------
- ---------
Contributions:
<S>                                            <C>           <C>           <C>           <C>         
  Participants                                 $  5,855,906  $ 13,434,226  $          0  $ 73,656,406
  Non-cash employer                                       0    35,319,523             0    35,319,523
  Rollovers                                         555,336       928,084             0     7,083,311
  Transfers from ESOP                               105,500        26,053             0       940,335
                                               ------------- ------------- ------------- -------------
    Total contributions                           6,516,742    49,707,886             0   116,999,575
                                               ------------- ------------- ------------- -------------
Earnings on investments:
  Interest on participant loans                           0             0     1,629,497     1,629,497
  Interest on guaranteed investment contracts             0             0             0     6,255,490
  Dividends on common stock                               0       445,635             0       445,635
  Net realized gain on sale of common stock               0       808,155             0       808,155
  Unrealized appreciation of common stock                 0    59,988,328             0    59,988,328
  Net realized/unrealized gain from registered
    investment companies                          2,811,902             0             0    34,793,327
                                               ------------- ------------- ------------- -------------
     Total earnings on investments                2,811,902    61,242,118     1,629,497   103,920,432
                                               ------------- ------------- ------------- -------------
Total additions                                   9,328,644   110,950,004     1,629,497   220,920,007

DEDUCTIONS

Participant benefit payments                      1,234,830    12,710,078     1,452,685    34,505,315
Account maintenance fees                              4,961        33,045             0        98,473
                                               ------------- ------------- ------------- -------------
Net increase                                      8,088,853    98,206,881       176,812   186,316,219

Transfers from (to):
  Other master trust investment accounts            526,814     8,379,780             0             0
  Net loans                                        (135,546)   (1,114,972)    4,087,272             0
  Western Union International Collectively
    Bargained Plan                                        0        82,468        10,786       209,933
  MCI Plan for Non-Exempt Employees                   9,645    (6,269,105)   (1,083,900)  (10,394,600)

Net assets available for benefits,
  beginning of year                              16,800,069   218,017,594    17,969,075   537,827,481
                                               ------------- ------------- ------------- -------------
Net assets available for benefits,
  end of year                                  $ 25,289,835  $317,302,646  $ 21,160,045  $713,959,033
                                               ============= ============= ============= =============
</TABLE>


                                               Page 33


<PAGE>


NOTE 5 - PARTICIPANTS' ACCOUNTS

As of December 31, 1997 and 1996, the Plan held 11,340,155 and 9,703,805 shares,
respectively,  of MCI  Communications  Corporation  Common  Stock at fair market
values  of  $485,500,397  and  $317,193,126,   respectively.  Of  these  shares,
1,242,692 and 1,282,338  were  contributed  by the Company during the Plan years
ended  December  31,  1997 and 1996,  respectively,  as the  Company's  matching
contributions.  As of December  31,  1997 and 1996,  the Plan's  benefit  claims
payable  was  $168,245,014  and  $106,395,205,   which  includes  1,716,513  and
1,289,814 shares of MCI  Communications  Corporation Common Stock at fair market
values of $73,488,202 and $42,160,817,  respectively. Net assets include account
balances  of  participants  who have  terminated  from the  Company and have not
received a distribution as of year end.


NOTE 6 - TRANSFER OF ASSETS TO (FROM) THE PLAN

During  the  years  ended  December  31,  1997 and  1996,  certain  participants
transferred between the Plan and the Non-Exempt Plan. During the Plan year ended
December 31, 1997,  assets valued at $10,520,332  were  transferred to the Plan,
including  165,942 shares of MCI  Communications  Corporation  Common Stock at a
fair value of $5,598,912.  During the plan year ended December 31, 1996,  assets
valued at $10,394,600 were transferred from the Plan,  including  235,152 shares
of MCI Communications Corporation Common Stock at a fair value of $6,269,105.

During  the  years  ended  December  31,  1997 and  1996,  certain  participants
transferred between the Plan and the Western Union International 401(k) Plan for
Collectively  Bargained Employees.  During the years ended December 31, 1997 and
1996, assets valued at $85,330 and $209,933,  respectively,  including 1,878 and
3,013 shares of MCI  Communications  Corporation Common Stock at a fair value of
$31,937 and $82,468, respectively, were transferred to the Plan.

Effective  June 23, 1997,  assets valued at $5,274,040  were  transferred to the
Plan from the Apple  Computer,  Inc.  Savings  and  Investment  Plan (the "Apple
Plan"). These assets represent the account balances of participants of the Apple
Plan who were accepted into the Plan and became employees of MCI Systemhouse



                                     Page 34
<PAGE>
("MCIS"),  a  subsidiary  of  MCI  Telecommunications  Corporation  which  is  a
wholly-owned  subsidiary of the Company,  pursuant to a contractual  outsourcing
agreement between MCIS and Apple Computer, Inc.

Effective  December 8, 1997, assets valued at $3,895,188 were transferred to the
Plan from the California  State  Automobile  Association  IIB Autosave Plan (the
"CSAA Plan"). These assets represent the account balances of participants of the
CSAA Plan who were accepted into the Plan and became  employees of MCIS pursuant
to a contractual  outsourcing  agreement  between MCIS and the California  State
Automobile Association.


NOTE 7 - FEDERAL INCOME TAX STATUS

As  described  in  Note  1,  the  Plan  is  Part  II of the  MCI  Communications
Corporation  ESOP and 401(k) for Exempt  Employees,  which,  as amended  through
January 24, 1995,  has been  determined by letter dated January 31, 1996, by the
IRS to be qualified  under Section 401 of the Internal  Revenue  Code.  The Plan
Administrator believes the Plan is currently being operated in a manner designed
to maintain its tax-qualified  status.  In addition,  the Company will apply for
and  expects  to  receive a new  determination  letter  covering  the  Plan,  as
restated.


NOTE 8 - MCI WORLDCOM MERGER AGREEMENT

Effective  November 9, 1997,  MCI  Communications  Corporation  (the  "Company")
entered into an Agreement and Plan of Merger (the MCI WorldCom Merger Agreement)
with  WorldCom,  Inc.  ("WorldCom")  a Georgia  corporation,  and TC Investments
Corporation ("Merger Sub") a Delaware corporation and a wholly-owned  subsidiary
of  WorldCom,  pursuant to which the Company will merge with and into Merger Sub
(the "Merger").  As a result of the Merger,  (a) each  outstanding  share of the
Company's  common stock,  par value $.10 per share,  (other than shares owned by
WorldCom or Merger Sub or held by the Company) will be converted  into the right
to receive that number of shares of WorldCom  common  stock,  par value $.01 per
share, equal to the quotient determined by dividing $51.00 by the average of the
high and low sale  prices of  WorldCom  common  stock as  reported on the NASDAQ
National Market on each




                                     Page 35
<PAGE>
of the 20 consecutive trading days ending with the third trading day immediately
preceding the effective time of the Merger (the "Exchange Ratio"), provided that
the Exchange Ratio shall not be less than 1.2439 or greater than 1.7586; and (b)
each outstanding  share of the Company's Class A common stock shall be converted
into the right to receive $51.00 in cash, without interest thereon. On March 11,
1998, the stockholders of the Company and shareholders of WorldCom  approved the
Merger.  The Merger  will be  accounted  for as a purchase  in  accordance  with
generally accepted accounting principles.

Concurrent with the MCI WorldCom  Merger  Agreement,  the Company,  WorldCom and
British  Telecommunications,  plc  ("BT")  entered  into an  agreement  (the "BT
Termination  Agreement") whereby (i) the Agreement and Plan of Merger,  dated as
of  November  3, 1996,  as last  amended  on August 21,  1997 (the MCI BT Merger
Agreement),  among the Company, BT and Tadworth Corporation was terminated; (ii)
WorldCom  agreed to pay BT a fee of $450  million and  expenses not in excess of
$15  million  in order to  induce  BT to waive  its  rights  under  and agree to
terminate, the MCI BT Merger Agreement;  (iii) BT agreed to support and vote its
shares  of Class A common  stock in favor of the  Merger;  and (iv) BT agreed to
exercise   its  call   option  to  acquire  the   Company's   share  in  Concert
Communications  Services ("Concert CS") immediately following the effective time
of the Merger.  The Company  will be a  distributor  of Concert CS services on a
nonexclusive  basis to  customers in the U.S. for at least two years and as many
as five years following BT's exercise of its call option.


NOTE 9 - SUBSEQUENT EVENTS

Effective January 1, 1998,  eligible employees under the Plan may elect to defer
up to 20% of eligible  compensation  on a pre-tax basis to be contributed to the
Plan by the  Company on behalf of such  employees.  Additionally,  the Plan will
provide for the automatic  distribution in a lump sum of terminated  participant
accounts with a vested balance of $5,000 or less.








                                                       Page 36


<PAGE>
<TABLE>
<CAPTION>


                                                                                               SCHEDULE I
                                           MCI COMMUNICATIONS CORPORATION
                                          DEFINED CONTRIBUTION MASTER TRUST
                             ITEM 27a - SCHEDULE OF ASSETS HELD FOR INVESTMENT PURPOSES
                                                  DECEMBER 31, 1997

                                                                                                    CURRENT
                                                           NUMBER                                  VALUE AT
DESCRIPTION/ISSUER                                        OF SHARES            COST                12/31/97
- ------------------                                        ---------        ------------          ------------

LOANS TO PARTICIPANTS

<S>                                                       <C>              <C>                   <C>
     Participant loan accounts (rates range 6% - 11%)                      $          0          $ 32,237,962
      (maturities range 1998-2012)                                                               ------------

INTEREST IN COLLECTIVE INVESTMENT
  FUNDS OF TRUSTEE

  *  Mellon Bank Temporary
       Investment Fund                                                       10,842,931            10,842,931
                                                                                                 ------------

INTEREST IN REGISTERED INVESTMENT
  COMPANIES

     EuroPacific Growth Fund                              1,546,250          39,071,848            40,233,423
  *  Dreyfus Basic 500 Stock Index Fund                   6,269,163          87,196,064           128,956,690
  *  Putnam Voyager Fund                                  9,718,402         137,068,715           185,135,550
  *  Putnam New Opportunities Fund                        1,924,959          75,559,675            93,649,233
  *  Putnam Balanced Retirement Fund                      5,716,666          59,525,072            62,254,492
                                                                                                 ------------
     Total investment in registered
       investment companies                                                                       510,229,388
                                                                                                 ------------

GUARANTEED INVESTMENT CONTRACTS **
  Stable Asset Fund

     AIG Life Insurance (6.53% Matures 3/31/02)                               5,323,731             5,323,731
     AIG Life Insurance (7.00% Matures 6/3/02)                                3,155,722             3,155,722
     Aetna Life Insurance (6.63% Matures 6/30/00)                            21,652,482            21,652,482
     Allstate Life Insurance (5.90% Matures 7/1/98)                           6,856,228             6,856,228
     Allstate Life Insurance (5.90% Matures 6/30/01)                          2,000,314             2,000,314
     Canada Life Assurance Company (7.30% Matures 7/1/02)                     5,256,848             5,256,848
     Continental Assurance Company (6.78% Matures 4/2/01)                     3,133,924             3,133,924
     John Hancock Mutual Life Insurance (8.05% Matures 6/30/99)              15,409,255            15,409,255
     Life of Virginia (6.28% Matures 8/15/01)                                 5,053,558             5,053,558
     New York Life Insurance (6.82% Matures 3/31/98)                          3,174,974             3,174,974
     New York Life Insurance (8.08% Matures 12/31/99)                         3,156,159             3,156,159
     Pacific Mutual Life Insurance (7.30% Matures 12/31/01)                   4,981,496             4,981,496
     Pacific Mutual Life Insurance (7.36% Matures 12/31/01)                   4,333,876             4,333,876
     Peoples Security Insurance Company (5.72% Matures  6/30/94)              3,500,453             3,500,453
     Peoples Security Insurance Company (5.86% Matures 3/31/98)               3,367,299             3,367,299
     Peoples Security Insurance Company (6.32% Matures 2/17/03)               4,013,633             4,013,633
     Principal Mutual Life Insurance (6.60% Matures  4/02/07)                 3,409,732             3,409,732
     Principal Mutual Life Insurance (6.78% Matures  12/16/07)                4,081,625             4,081,625
     Protective Life Insurance (6.57% Matures 10/2/00)                        3,049,036             3,049,036
     Prudential Life Insurance (7.00% Matures 9/30/98)                        3,225,446             3,225,446
     Security Life of Denver (6.74% Matures 9/16/02)                          4,124,942             4,124,942
     TransAmerica Life Insurance (5.60% Matures 6/30/95)                      1,713,081             1,713,081
     TransAmerica Life Insurance (7.25% Matures 12/31/98)                     2,714,130             2,714,130
                                                                                                 ------------
     Total guaranteed investment contracts                                                        116,687,944
                                                                                                 ------------

COMMON STOCK

  *  MCI Communications Corporation                       13,220,260        322,843,184           565,998,991
                                                                                                 ------------

     TOTAL INVESTMENTS                                                                         $1,236,097,216
                                                                                               ==============

  *  Denotes a party-in-interest

  ** Current value is considered to be contract value.
</TABLE>

                                                       Page 37


<PAGE>

<TABLE>
<CAPTION>

                                                                                                                       SCHEDULE II
                                                               MCI COMMUNICATIONS CORPORATION
                                                              DEFINED CONTRIBUTION MASTER TRUST
                                                       ITEM 27d - SCHEDULE OF REPORTABLE TRANSACTIONS
                                                            FOR THE YEAR ENDED DECEMBER 31, 1997

Transactions or series of transactions exceeding 5% of the beginning fair values
of master  trust  assets for the plan year  January 1, 1997 to December 31, 1997
are  considered  reportable  transactions.  Fair  value at  January  1,  1997 is
$820,069,314. Five percent (5%) of fair value is $41,003,465.

 Identity                                                                   Expense                        Current
   of                                                                      incurred                    value of asset
  party                              Purchase         Selling     Lease      with          Cost of     on transaction  Net gain
involved    Description of asset       price           price      rental  transaction       asset           date       or (loss)
- --------  -----------------------  --------------  -------------  ------  -----------  --------------  --------------  ---------
<S>                                <C>             <C>                                   <C>             <C>           <C>       
        * Putnam New               $ 42,964,423                                         $ 42,964,423    $ 42,964,423  $        0
            Opportunities Fund    (118 purchases)
        * Putnam New                               $ 14,437,422                         $ 12,282,409    $ 14,437,422  $2,152,013
            Opportunities Fund                      (137 sales)
        * Putnam Voyager Fund      $ 56,449,333                                         $ 56,449,333    $ 56,449,333  $        0
                                  (104 purchases)
        * Putnam Voyager Fund                      $ 29,583,046                         $ 21,935,279    $ 29,583,046  $7,647,767
                                                    (153 sales)
        * MCI Common Stock Fund    $ 60,572,087                                         $ 60,572,087    $ 60,572,087  $        0
                                 (153 deliveries)
        * MCI Common Stock Fund                    $150,691,965                         $150,691,965    $150,691,965  $        0
                                                    (365 receipts)
          Stable Asset Fund        $ 12,500,000                                         $ 12,500,000    $ 12,500,000  $        0
                                  (5 purchases)
          Stable Asset Fund                        $ 10,620,272                         $ 10,620,272    $ 10,620,272  $        0
                                                    (5 sales)
        *  Mellon Bank Temporary   $121,657,362                                         $121,657,362    $121,657,362  $        0
            Investment Fund       (567 purchases)
        *  Mellon Bank Temporary                   $112,968,133                         $112,968,133    $112,968,133  $        0
            Investment Fund                         (447 sales)

   *  Denotes a party-in-interest
                                                                             Page 38
</TABLE>


<PAGE>



                                                      SIGNATURE

Pursuant to the  requirements  of the Securities  Exchange Act of 1934, the Plan
sponsor of the MCI  Communications  Corporation  ESOP and 401(k) Plan for Exempt
Employees  has duly caused this annual  report to be signed on its behalf by the
undersigned, thereunto duly authorized.



                                               MCI COMMUNICATIONS CORPORATION
                                               ESOP AND 401(k) PLAN FOR EXEMPT
                                                            EMPLOYEES


Date:  June 26, 1998                                   By:David M. Case
                                                 ------------------------------
                                                          David M. Case
                                                  Vice President and Controller
                                                 MCI Communications Corporation

























                                                       Page 39


<PAGE>


                                                                  Exhibit 23
                                                                  ----------
                         MCI COMMUNICATIONS CORPORATION
                        401(k) PLAN FOR EXEMPT EMPLOYEES
                                 EIN: 52-0886267


                       CONSENT OF INDEPENDENT ACCOUNTANTS
                       ----------------------------------


We  hereby  consent  to  the   incorporation  by  reference  in  the  Prospectus
constituting part of the Registration  Statement of Form S-8 (No.  333-12845) of
MCI  Communications  Corporation of our report dated June 8, 1998,  appearing on
page 3 of this Form 11-K.




PRICE WATERHOUSE LLP
Washington, D.C.
June 26, 1998



















                                                       Page 40


<PAGE>




                                                                 Exhibit 99
                     DOL Filing Confirmation                     ---------


I certify that the Plan Administrator of the MCI Communications Corporation ESOP
and  401(k)  for  Exempt  Employees  has  received  a  Statement  of Assets  and
Liabilities  and also that the statement has been filed directly with the United
States  Department  of Labor by Mellon Bank,  N.A.  (EIN #  25-0659206)  for the
following investment arrangements:


                                                                EIN #
                                                             --------------
Mellon Bank Temporary Investment Fund                        25-6078903-980


                                                  MCI COMMUNICATIONS CORPORATION
                                                          401(k) PLAN FOR EXEMPT
                                                  EMPLOYEES - PART II OF THE MCI
                                                 COMMUNICATIONS CORPORATION ESOP
                                                      AND 401(k) PLAN FOR EXEMPT
                                                                       EMPLOYEES

Date:  June 26, 1998                                      By:David M. Case
                                                ------------------------------
                                                            David M. Case
                                                  Vice President and Controller
                                                 MCI Communications Corporation






                                                     Page 41



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