-----------------------------------
                        -----------------------------------
                                          
               U S WEST, INC. (to be renamed "MediaOne Group, Inc.")
                                          
                                        AND
                                          
                        THE FIRST NATIONAL BANK OF CHICAGO,
                                          
                                             TRUSTEE
                                          
                      PREFERRED SECURITIES GUARANTEE AGREEMENT
                                          
                         Dated as of                , 1998
                                          
                        -----------------------------------
                        -----------------------------------



                                          
                               CROSS-REFERENCE TABLE*



Section of                                                  Section of
Trust Indenture Act                                         Guarantee
of 1939, as amended                                         Agreement
- -------------------                                         ----------
                                                         
310(a) . . . . . . . . . . . . . . . . . . . . . . . .      4.1(a)
310(b) . . . . . . . . . . . . . . . . . . . . . . . .      4.1(c)
310(c) . . . . . . . . . . . . . . . . . . . . . . . .      Inapplicable
311(a) . . . . . . . . . . . . . . . . . . . . . . . .      2.2(b)
311(b) . . . . . . . . . . . . . . . . . . . . . . . .      2.2(b)
311(c) . . . . . . . . . . . . . . . . . . . . . . . .      Inapplicable
312(a) . . . . . . . . . . . . . . . . . . . . . . . .      2.2(a)
312(b) . . . . . . . . . . . . . . . . . . . . . . . .      2.2(b)
313. . . . . . . . . . . . . . . . . . . . . . . . . .      2.3
314(a) . . . . . . . . . . . . . . . . . . . . . . . .      2.4
314(b) . . . . . . . . . . . . . . . . . . . . . . . .      Inapplicable
314(c) . . . . . . . . . . . . . . . . . . . . . . . .      2.5
314(d) . . . . . . . . . . . . . . . . . . . . . . . .      Inapplicable
314(f) . . . . . . . . . . . . . . . . . . . . . . . .      Inapplicable
315(a) . . . . . . . . . . . . . . . . . . . . . . . .      3.1(b)
315(b) . . . . . . . . . . . . . . . . . . . . . . . .      2.7
315(c) . . . . . . . . . . . . . . . . . . . . . . . .      3.1(a)
315(d) . . . . . . . . . . . . . . . . . . . . . . . .      3.1(a)
316(a) . . . . . . . . . . . . . . . . . . . . . . . .      5.4(a), 2.6



_______________

*    This Cross-Reference Table does not constitute part of the Preferred
     Securities Guarantee Agreement and shall not affect the interpretation
     of any of its terms or provisions.



                      PREFERRED SECURITIES GUARANTEE AGREEMENT

          This PREFERRED SECURITIES GUARANTEE AGREEMENT ("Guarantee 
Agreement"), dated as of                                 , is executed and 
delivered by U S WEST, Inc. (to be renamed "MediaOne Group, Inc."), a 
Delaware corporation (the "Guarantor"), and The First National Bank of 
Chicago, as trustee (the "Preferred Guarantee Trustee"), for the benefit of 
the Holders (as defined herein) from time to time of the Preferred Securities 
(as defined herein) of MediaOne Finance Trust II, a Delaware statutory 
business trust (the "Issuer").

          WHEREAS, pursuant to an Amended and Restated Declaration of Trust 
(the "Declaration"), dated as of                  1998, among the trustees of 
the Issuer named therein, the Guarantor as Sponsor and the holders from time 
to time of undivided beneficial interests in the assets of the Issuer, the 
Issuer is issuing on the date hereof $               aggregate stated 
liquidation amount of Preferred Securities designated the        %Trust 
Originated Preferred Securities (the "Preferred Securities");

          WHEREAS, as incentive for the Holders to purchase the Preferred 
Securities, the Guarantor desires to irrevocably and unconditionally to 
agree, to the extent set forth in this Guarantee Agreement, to pay to the 
Holders of the Preferred Securities the Guarantee Payments (as defined 
herein) and to make certain other payments on the terms and conditions set 
forth herein.

          WHEREAS, the Guarantor is also executing and delivering a guarantee 
agreement (the "Common Securities Guarantee Agreement") in substantially 
identical terms to this Guarantee Agreement for the benefit of the holders of 
the Common Securities (as defined herein) except that if an Event of Default 
(as defined in the Indenture (as defined herein)), has occurred and is 
continuing, the rights of holders of the Common Securities to receive 
Guarantee Payments under the Common Securities Guarantee are subordinated to 
the rights of Holders of Preferred Securities to receive Guarantee Payments 
under this Guarantee Agreement. 

          NOW, THEREFORE, in consideration of the purchase by each Holder of 
Preferred Securities, which purchase the Guarantor hereby agrees shall 
benefit the Guarantor, the Guarantor executes and delivers this Guarantee 
Agreement for the benefit of the Holders.


                                  ARTICLE I 

                       DEFINITIONS AND INTERPRETATION

SECTION 1.1    DEFINITIONS AND INTERPRETATION.

          In this Guarantee Agreement, unless the context otherwise requires:




          (a)  Capitalized terms used in this Guarantee Agreement but not 
defined in the preamble above have the respective meanings assigned to them 
in this Section 1.1;

          (b)  a term defined anywhere in this Guarantee Agreement has the 
same meaning throughout;

          (c)  all references to "the Guarantee Agreement" or "this Guarantee 
Agreement" are to this Guarantee Agreement as modified, supplemented or 
amended from time to time;

          (d)  all references in this Guarantee Agreement to Articles and 
Sections are to Articles and Sections of this Guarantee Agreement unless 
otherwise specified;

          (e)  a term defined in the Trust Indenture Act has the same meaning 
when used in this Guarantee Agreement unless otherwise defined in this 
Guarantee Agreement or unless the context otherwise requires; and

          (f)  a reference to the singular includes the plural and vice versa.

          "AFFILIATE" has the same meaning as given to that term in Rule 405 
of the Securities Act of 1933, as amended, or any successor rule thereunder.

          "COMMON SECURITIES" means the securities representing common 
undivided beneficial interests in the assets of the Issuer.

          "COVERED PERSON" means any Holder or beneficial owner of Preferred 
Securities.

          "EVENT OF DEFAULT" means a default by the Guarantor on any of its 
payment or other obligations under this Guarantee Agreement.

          "GUARANTEE PAYMENTS" means the following payments or distributions, 
without duplication, with respect to the Preferred Securities, to the extent 
not paid or made by the Issuer:  (i) any accrued and unpaid Distributions 
which are required to be paid on such Preferred Securities to the extent the 
Issuer shall have funds available therefore, (ii) the redemption price, 
including all accrued and unpaid Distributions to the date of redemption (the 
"Redemption Price") to the extent the Issuer has funds available therefor, 
with respect to any Preferred Securities called for redemption by the Issuer, 
and (iii) upon a voluntary or involuntary dissolution, winding-up or 
termination of the Issuer (other than in connection with the distribution of 
Debentures to the Holders in exchange for Preferred Securities as provided in 
the Declaration), the lesser of (a) the aggregate of the liquidation amount 
and all accrued and unpaid Distributions on the Preferred Securities to the 
date of payment, to the extent the Issuer shall have funds available therefor 
and (b) the amount of assets of the Issuer remaining available for 
distribution to Holders in liquidation of the Issuer (in either case, the 
"Liquidation Distribution").  If an Event 


                                       2


of Default (as defined in the Indenture), has occurred and is continuing, the 
rights of the holders of the Common Securities to receive Guarantee Payments 
under the Common Securities Guarantee Agreement are subordinated to the 
rights of Holders of Preferred Securities to receive Guarantee Payments.

          "GUARANTOR" shall mean U S WEST, Inc., a Delaware corporation or 
any permitted successor thereof under the Indenture, in its capacity as 
guarantor under this Guarantee Agreement.

          "HOLDER" shall mean any holder, as registered on the books and 
records of the Issuer, of any Preferred Securities; PROVIDED, HOWEVER, that 
in determining whether the holders of the requisite percentage of Preferred 
Securities have given any request, notice, consent or waiver hereunder, 
"Holder" shall not include the Guarantor or any entity directly or indirectly 
controlling or controlled by or under direct or indirect common control with 
the Guarantor.

          "INDEMNIFIED PERSON" means the Preferred Guarantee Trustee, any 
Affiliate of the Preferred Guarantee Trustee, or any officers, directors, 
shareholders, members, partners, employees, representatives or agents of the 
Preferred Guarantee Trustee.

          "INDENTURE" means the Indenture dated as of                  , 1998 
among MediaOne Group Funding, Inc., a Delaware corporation (the "Debenture 
Issuer"), U S WEST, Inc., a Delaware corporation, as guarantor and 
                                               , as trustee, as supplemented 
by a Second Supplemental Indenture dated as of            , 1998 among the 
Debenture Issuer, the Guarantor, as guarantor and                          , 
as trustee, and any indenture supplemental thereto pursuant to which certain 
subordinated debt securities of the Debenture Issuer (the "Debentures") and 
the guarantee of the Guarantor endorsed thereon (the "Debenture Guarantee") 
are to be issued to the Property Trustee of the Issuer.

          "MAJORITY IN LIQUIDATION AMOUNT OF THE PREFERRED SECURITIES" means, 
except as provided by the Trust Indenture Act, Holder(s) of Preferred 
Securities voting separately as a class, who vote Preferred Securities and 
the aggregate liquidation amount (including the stated amount that would be 
paid on redemption, liquidation or otherwise, plus accrued and unpaid 
Distributions to the date upon which the voting percentages are determined) 
of the Preferred Securities voted by such Holders represents more than 50% of 
the above stated liquidation amount of all Preferred Securities.

          "66-2/3% IN LIQUIDATION AMOUNT OF THE PREFERRED SECURITIES" means, 
Holders of Preferred Securities voting separately as a class, who vote 
Preferred Securities and the aggregate liquidation amount (including the 
stated amount that would be paid on redemption, liquidation or otherwise, 
plus accrued and unpaid Distributions to the date upon which the voting 
percentages are to be determined) of the Preferred Securities voted by such 
Holders represents more than 66-2/3% of the above stated liquidation amount 
of all Preferred Securities.


                                       3


          "OFFICERS' CERTIFICATE" means, with respect to any Person, a 
certificate signed by two Authorized Officers of such Person.  Any Officers' 
Certificate delivered with respect to compliance with a condition or covenant 
provided for in this Guarantee Agreement shall include:

          (a)  a statement that each officer signing the Certificate has read 
the covenant or condition and the definition relating thereto;

          (b)  a brief statement of the nature and scope of the examination 
or investigation undertaken by each officer in rendering the Certificate;

          (c)  a statement that each such officer has made such examination 
or investigation as, in such officer's opinion, is necessary to enable such 
officer to express an informed opinion as to whether or not such covenant or 
condition has been complied with; and 

          (d)  a statement as to whether, in the opinion of each such 
officer, such condition or covenant has been complied with.

          "PERSON" means a legal person, including any individual, 
corporation, estate, partnership, joint venture, association, joint stock 
company, limited liability company, trust, unincorporated association, or 
government or any agency or political subdivision thereof, or any other 
entity of whatever nature.

          "PREFERRED GUARANTEE TRUSTEE" means The First National Bank of 
Chicago until a Successor Preferred Guarantee Trustee has been appointed and 
has accepted such appointment pursuant to the terms of this Guarantee 
Agreement and thereafter means each such Successor Preferred Guarantee 
Trustee.

          "RESPONSIBLE OFFICER" means, with respect to the Preferred 
Guarantee Trustee, the chairman of the board of directors, the president, any 
vice-president, any assistant vice-president, the secretary, any assistant 
secretary, the treasurer, any assistant treasurer, any trust officer or 
assistant trust officer or any other officer of the Preferred Guarantee 
Trustee customarily performing functions similar to those performed by any of 
the above designated officers and also means, with respect to a particular 
corporate trust matter, any other officer to whom such matter is referred 
because of that officer's knowledge of and familiarity with the particular 
subject.

          "SUCCESSOR PREFERRED GUARANTEE TRUSTEE" means a successor Preferred 
Guarantee Trustee possessing the qualifications to act as Preferred Guarantee 
Trustee under Section 4.1.

          "TRUST INDENTURE ACT" means the Trust Indenture Act of 1939, as 
amended.



                                       4


                                  ARTICLE II     
                              TRUST INDENTURE ACT

SECTION 2.1    TRUST INDENTURE ACT; APPLICATION.

          (a)  This Guarantee Agreement is subject to the provisions of the 
Trust Indenture Act that are required to be part of this Guarantee Agreement 
and shall, to the extent applicable, be governed by such provisions; and

          (b)  if and to the extent that any provision of this Guarantee 
Agreement limits, qualifies or conflicts with the duties imposed by Sections 
310 to 317, inclusive, of the Trust Indenture Act, such imposed duties shall 
control.

SECTION 2.2    LISTS OF HOLDERS OF SECURITIES.

          (a)  The Guarantor shall provide the Preferred Securities Trustee 
(i) within 14 days after January 1 and June 30 of each year, a list, in such 
form as the Preferred Guarantee Trustee may reasonably require, of the names 
and addresses of the Holders of the Preferred Securities ("List of Holders") 
as of such date, PROVIDED THAT the Guarantor shall not be obligated to 
provide such List of Holders at any time the List of Holders does not differ 
from the most recent List of Holders given to the Preferred Guarantee Trustee 
by the Guarantor, and (ii) at any other time, within 30 days of receipt by 
the Guarantor of a written request for a List of Holders as of a date no more 
than 14 days before such List of Holders is given to the Preferred Guarantee 
Trustee. The Preferred Guarantee may destroy any List of Holders previously 
given to it on receipt of a new List of Holders; and

          (b)  the Preferred Guarantee Trustee shall comply with its 
obligations under Sections  311(a), 311(b) and Section  312(b) of the Trust 
Indenture Act.

SECTION 2.3    REPORTS BY THE PREFERRED GUARANTEE TRUSTEE.

          Within 60 days after May 15 of each year, the Preferred Guarantee 
Trustee shall provide to the Holders of the Preferred Securities such reports 
as are required by Section  313 of the Trust Indenture Act, if any, in the 
form and in the manner provided by Section  313 of the Trust Indenture Act.  
The Preferred Guarantee Trustee shall also comply with the requirements of 
Section  313(d) of the Trust Indenture Act.

SECTION 2.4    PERIODIC REPORTS TO PREFERRED GUARANTEE TRUSTEE.

          The Guarantor shall provide to the Preferred Guarantee Trustee such 
documents, reports and information as required by Section  314 (if any) and 
the compliance certificate required by Section  314 of the Trust Indenture 
Act in the form, in the manner and at the times required by Section  314 of 
the Trust Indenture Act.



                                       5


SECTION 2.5    EVIDENCE OF COMPLIANCE WITH CONDITIONS PRECEDENT.

          The Guarantor shall provide to the Preferred Guarantee Trustee such 
evidence of compliance with any conditions precedent, if any, provided for in 
this Guarantee Agreement which relate to any of the matters set forth in 
Section  314(c) of the Trust Indenture Act.  Any certificate or opinion 
required to be given by an officer pursuant to Section  314(c)(1) may be 
given in the form of an Officers' Certificate.

SECTION 2.6    EVENTS OF DEFAULT; WAIVER.

          The Holders of a Majority in liquidation amount of Preferred 
Securities may, by vote, on behalf of the Holders of all of the Preferred 
Securities, waive any past Event of Default and its consequences.  Upon such 
waiver, any such Event of Default shall cease to exist, and any Event of 
Default arising therefrom shall be deemed to have been cured, for every 
purpose of this Guarantee Agreement, but no such waiver shall extend to any 
subsequent or other default or Event of Default or impair any right 
consequent thereon.  

SECTION 2.7    EVENT OF DEFAULT; NOTICE 

          (a)  The Preferred Guarantee Trustee shall, within 90 days after 
the occurrence of an Event of Default, transmit by mail, first class postage 
prepaid, to the Holders of the Preferred Securities, notices of all Events of 
Default known to the Preferred Guarantee Trustee, unless such defaults have 
been cured before the giving of such notice, PROVIDED, THAT, the Preferred 
Guarantee Trustee shall be protected in withholding such notice if and so 
long as the board of directors, the executive committee, or a trust committee 
of directors and/or Responsible Officers, of the Preferred Guarantee Trustee 
in good faith determine that the withholding of such notice is in the 
interests of the Holders of the Preferred Securities.

          (b)  The Preferred Guarantee Trustee shall not be deemed to have 
knowledge of any Event of Default except any Event of Default as to which the 
Preferred Guarantee Trustee shall have received written notice or a 
Responsible Officer charged with the administration of the Declaration shall 
have obtained written notice of.

SECTION 2.8    CONFLICTING INTERESTS.

          The Declaration shall be deemed to be specifically described in 
this Guarantee Agreement for the purposes of clause (i) of the first proviso 
contained in Section 310(b) of the Trust Indenture Act.



                                       6


                                   ARTICLE III    
                          POWERS, DUTIES AND RIGHTS OF 
                           PREFERRED GUARANTEE TRUSTEE

SECTION 3.1    POWERS AND DUTIES OF THE PREFERRED GUARANTEE TRUSTEE.

          (a)  This Guarantee Agreement shall be held by the Preferred 
Guarantee Trustee for the benefit of the Holders of the Preferred Securities 
and the Preferred Guarantee Trustee shall not transfer this Guarantee 
Agreement to any Person except a Holder of Preferred Securities exercising 
his or her rights pursuant to Section 5.4(b) or to a Successor Preferred 
Guarantee Trustee on acceptance by such Successor Preferred Guarantee Trustee 
of its appointment to act as Preferred Guarantee Trustee.  The right, title 
and interest of the Preferred Guarantee Trustee shall automatically vest in 
any Successor Preferred Guarantee Trustee and such vesting and cessation of 
title shall be effective whether or not conveyancing documents have been 
executed and delivered.

          (b)  If an Event of Default has occurred and is continuing, the 
Preferred Guarantee Trustee shall enforce this Guarantee Agreement for the 
benefit of the Holders of the Preferred Securities.

          (c)  The Preferred Guarantee Trustee, before the occurrence of any 
Event of Default and after the curing of all Events of Default that may have 
occurred, shall undertake to perform only such duties as are specifically set 
forth in this Guarantee Agreement, and no implied covenants shall be read 
into this Guarantee Agreement against the Preferred Guarantee Trustee.  In 
case an Event of Default has occurred (that has not been cured or waived 
pursuant to Section 2.6), the Preferred Guarantee Trustee shall exercise such 
of the rights and powers vested in it by this Guarantee Agreement, and use 
the same degree of care and skill in their exercise, as a prudent person 
would exercise or use under the circumstances in the conduct of his or her 
own affairs;

          (d)  no provision of this Guarantee Agreement shall be construed to 
relieve the Preferred Guarantee Trustee from liability for its own negligent 
action, its own negligent failure to act, or its own willful misconduct, 
except that:

               (i)   prior to the occurrence of any Event of Default and 
                     after the curing or waiving of all such Events of 
                     Default that may have occurred:

                         (A) the duties and obligations of the Preferred 
                             Guarantee Trustee shall be determined solely by 
                             the express provisions of this Guarantee 
                             Agreement, and the Preferred Guarantee Trustee 
                             shall not be liable except for the performance 
                             of such duties and 

                                       7


                             obligations as are specifically set forth in 
                             this Guarantee Agreement, and no implied 
                             covenants or obligations shall be read into this 
                             Guarantee Agreement against the Preferred 
                             Guarantee; and
                         
                         (B) in the absence of bad faith on the part of the 
                             Preferred Guarantee Trustee, the Preferred 
                             Guarantee Trustee may conclusively rely, as to 
                             the truth of the statements and the correctness 
                             of the opinions expressed therein, upon any 
                             certificates or opinions furnished to the 
                             Preferred Guarantee Trustee and conforming to 
                             the requirements of this Guarantee Agreement; 
                             but in the case of any such certificates or 
                             opinions that by any provision hereof are 
                             specifically required to be furnished to the 
                             Preferred Guarantee Trustee, the Preferred 
                             Guarantee Trustee shall be under a duty to 
                             examine the same to determine whether or not 
                             they conform to the requirements of this 
                             Declaration;

               (ii)  the Preferred Guarantee Trustee shall not be liable for 
                     any error of judgment made in good faith by a 
                     Responsible Officer of the Preferred Guarantee Trustee, 
                     unless it shall be proved that the Preferred Guarantee 
                     Trustee was negligent in ascertaining the pertinent 
                     facts;

               (iii) the Preferred Guarantee Trustee shall not be liable with 
                     respect to any action taken or omitted to be taken by it 
                     in good faith in accordance with the direction of the 
                     Holders of not less than a Majority in liquidation 
                     amount of the Preferred Securities at the time 
                     outstanding relating to the time, method and place of 
                     conducting any proceeding for any remedy available to 
                     the Preferred Trustee, or exercising any trust or power 
                     conferred upon the Preferred Guarantee Trustee under 
                     this Guarantee Agreement; and

               (iv)  no provision of this Guarantee Agreement shall require 
                     the Preferred Guarantee Trustee to expend or risk its 
                     own funds or otherwise incur personal 

                                       8



                     financial liability in the performance of any of its 
                     duties or in the exercise of any of its rights or 
                     powers, if it shall have reasonable ground for believing 
                     that the repayment of such funds or liability is not 
                     reasonably assured to it under the terms of this 
                     Guarantee Agreement or adequate indemnity against such 
                     risk or liability is not reasonably assured to it.
          
SECTION 3.2    CERTAIN RIGHTS OF PREFERRED GUARANTEE TRUSTEE.

          (a)  Subject to the provisions of Section 3.1:

               (i)   the Preferred Guarantee Trustee may rely and shall be 
                     fully protected in acting or refraining from acting upon 
                     any resolution, certificate, statement, instrument, 
                     opinion, report, notice, request, direction, consent, 
                     order, bond, debenture, note, other evidence of 
                     indebtedness or other paper or document believed by it 
                     to be genuine and to have been signed, sent or presented 
                     by the proper party or parties;
     
               (ii)  any direction or act of the Guarantor contemplated by 
                     this Guarantee Agreement shall be sufficiently evidenced 
                     by an Officers' Certificate;
               
               (iii) whenever in the administration of this Guarantee 
                     Agreement, the Preferred Guarantee Trustee shall deem it 
                     desirable that a matter be proved or established before 
                     taking, suffering or omitting any action hereunder, the 
                     Preferred Guarantee Trustee (unless other evidence is 
                     herein specifically prescribed) may, in the absence of 
                     bad faith on its part and request and rely upon an 
                     Officers' Certificate which, upon receipt of such 
                     request, shall be promptly delivered by the Guarantor;
     
               (iv)  the Preferred Guarantee Trustee shall have no duty to 
                     see to any recording, filing or registration of any 
                     instrument (or any rerecording, refiling or registration 
                     thereof);
               
               (v)   the Preferred Guarantee Trustee may consult with counsel 
                     and the written advice or opinion of such counsel with 
                     respect to legal matters shall be full and complete 
                     authorization and protection in 

                                      9





                     respect of any action taken, suffered or omitted by it 
                     hereunder in good faith and in accordance with such 
                     advice or opinion.  Such counsel may be counsel to the 
                     Guarantor or any of its Affiliates, and may include any 
                     of its employees. The Preferred Guarantee Trustee shall 
                     have the right at any time to seek instructions 
                     concerning the administration of this Guarantee 
                     Agreement from any court of competent jurisdiction;
               
               (vi)  the Preferred Guarantee Trustee shall be under no 
                     obligation to exercise any of the rights or powers 
                     vested in it by this Guarantee Agreement at the request 
                     or direction of any Holder, unless such Holder shall 
                     have provided to the Preferred Guarantee Trustee 
                     adequate security and indemnity which would satisfy a 
                     reasonable person in the position of the Preferred 
                     Guarantee Trustee, against the costs, expenses 
                     (including attorneys' fees and expenses) and liabilities 
                     that might be incurred by it in complying with such 
                     request or direction, including such reasonable advances 
                     as may be requested by the Preferred Guarantee Trustee 
                     PROVIDED, THAT, nothing contained in this Section 
                     3.2(a)(vi) shall be taken to relieve the Preferred 
                     Guarantee Trustee, upon the occurrence of an Event of 
                     Default, of its obligation to exercise the rights and 
                     powers vested in it by this Guarantee Agreement;
     
               (vii) the Preferred Guarantee Trustee shall not be bound to 
                     make any investigation into the facts or matters stated 
                     in any resolution, certificate, statement, instrument, 
                     opinion, report, notice, request, direction, consent, 
                     order, bond, debenture, note, other evidence of 
                     indebtedness or other paper or document, but the 
                     Preferred Guarantee Trustee, in its discretion, may make 
                     such further inquiry or investigation into such facts or 
                     matters as it may see fit;
     
              (viii) the Preferred Guarantee Trustee may execute any of the 
                     trusts or powers hereunder or perform any duties 
                     hereunder either directly or by or through agents or 
                     attorneys and the Preferred Guarantee Trustee shall not 
                     be responsible for any misconduct 

                                     10






                     or negligence on the part of any agent or attorney 
                     appointed with due care by it hereunder;
     
               (ix)  any action taken by the Preferred Guarantee Trustee or 
                     its agents hereunder shall bind the Holders of the 
                     Preferred Securities and the signature of the Preferred 
                     Guarantee Trustee or its agents alone shall be 
                     sufficient and effective to perform any such action; and 
                     no third party shall be required to inquire as to the 
                     authority of the Preferred Guarantee Trustee to so act, 
                     or as to its compliance with any of the terms and 
                     provisions of this Guarantee Agreement, both of which 
                     shall be conclusively evidenced by the Preferred 
                     Guarantee Trustee's or its agent's taking such action; 
                     and
          
               (x)   whenever in the administration of this Guarantee 
                     Agreement the Preferred Guarantee Trustee shall deem it 
                     desirable to receive instructions with respect to 
                     enforcing any remedy or right or taking any other action 
                     hereunder the Preferred Guarantee Trustee (i) may 
                     request instructions from the Holders of a Majority in 
                     liquidation amount of the Preferred Securities, (ii) may 
                     refrain from enforcing such remedy or right or taking 
                     such other action until such instructions are received, 
                     and (iii) shall be protected in acting in accordance 
                     with such instructions; and
     
          (b)  No provision of this Guarantee Agreement shall be deemed to
impose any duty or obligation on the Preferred Guarantee Trustee to perform any
act or acts or exercise any right, power, duty or obligation conferred or
imposed on it, in any jurisdiction in which it shall be illegal, or in which the
Preferred Guarantee Trustee shall be unqualified or incompetent in accordance
with applicable law, to perform any such act or acts or to exercise any such
right, power, duty or obligation.  No permissive power or authority available to
the Preferred Guarantee Trustee shall be construed to be a duty.

          (c)  No provision of this Guarantee Agreement shall be deemed to
empower the Preferred Guarantee Trustee to vary the investment of any Holder of
the Preferred Securities or to act in a manner inconsistent with the status of
the Issuer as a grantor trust for federal income tax purposes.

SECTION 3.3    NOT RESPONSIBLE FOR RECITALS OR ISSUANCE OF GUARANTEE.

          The recitals contained in this Guarantee shall be taken as the
statements of the Guarantor and the Preferred Guarantee Trustee does not assume


                                     11





any responsibility for their correctness.  The Preferred Guarantee Trustee makes
no representations as to the validity or sufficiency of this Guarantee
Agreement.

                                 ARTICLE IV     
                       PREFERRED GUARANTEE TRUSTEE

SECTION 4.1    PREFERRED GUARANTEE TRUSTEE; ELIGIBILITY.

          (a)  There shall at all times be a Preferred Guarantee Trustee which
shall:

               (i)  not be an Affiliate of the Guarantor;
          
               (ii) be a corporation organized and doing business under 
                    the laws of the United States of America or any State or 
                    Territory thereof or of the District of Columbia, or a 
                    corporation or Person permitted by the Securities and 
                    Exchange Commission to act as an institutional trustee 
                    under the Trust Indenture Act, authorized under such laws 
                    to exercise corporate trust powers, having a combined 
                    capital and surplus of at least 50 million U.S. dollars 
                    ($50,000,000), and subject to supervision or examination 
                    by Federal, State, Territorial or District of Columbia 
                    authority.  If such corporation publishes reports of 
                    condition at least annually, pursuant to law or to the 
                    requirements of the supervising or examining authority 
                    referred to above, then for the purposes of this Section 
                    4.1(a)(ii), the combined capital and surplus of such 
                    corporation shall be deemed to be its combined capital 
                    and surplus as set forth in its most recent report of 
                    condition so published; 

          (b)  if at any time the Preferred Guarantee Trustee shall cease to be
eligible to so act under Section 4.1(a), the Preferred Guarantee Trustee shall
immediately resign in the manner and with the effect set out in Section 4.2(c);
and

          (c)  if the Preferred Guarantee Trustee has or shall acquire any
"conflicting interest" within the meaning of Section 310(b) of the Trust
Indenture Act, the Preferred Guarantee Trustee and Guarantor shall in all
respects comply with the provisions of Section 310(b) of the Trust Indenture
Act.

SECTION 4.2    APPOINTMENT, REMOVAL AND RESIGNATION
               OF PREFERRED GUARANTEE TRUSTEE.

          (a)  Subject to Section 4.2(b), the Preferred Guarantee Trustee may be
appointed or removed without cause at any time by the Guarantor;

                                     12





          (b)  the Preferred Guarantee Trustee shall not be removed in
accordance with Section 4.2(a) until a Successor Preferred Guarantee Trustee has
been appointed and has accepted such appointment by written instrument executed
by such Successor Preferred Guarantee Trustee and delivered to the Guarantor; 

          (c)  the Preferred Guarantee Trustee appointed to office shall hold
office until a Successor Preferred Guarantee Trustee shall have been appointed
or until its removal or resignation.  The Preferred Guarantee Trustee may resign
from office (without need for prior or subsequent accounting) by an instrument
in writing executed by the Preferred Guarantee Trustee and delivered to the
Guarantor, which resignation shall not take effect until a Successor Preferred
Guarantee Trustee has been appointed and has accepted such appointment by
instrument in writing executed by such Successor Preferred Guarantee Trustee and
delivered to the Guarantor and the resigning Preferred Guarantee Trustee; and 

          (d)  if no Successor Preferred Guarantee Trustee shall have been
appointed and accepted appointment as provided in this Section 4.2 within 60
days after delivery to the Guarantor of an instrument of resignation, the
resigning Preferred Guarantee Trustee may petition any court of competent
jurisdiction for appointment of a Successor Preferred Guarantee Trustee.  Such
court may thereupon after such notice, if any, as it may deem proper and
prescribe, appoint a Successor Preferred Guarantee Trustee.

                            ARTICLE V 
                            GUARANTEE

SECTION 5.1    GUARANTEE.

          The Guarantor irrevocably and unconditionally agrees to pay in full 
to the Holders the Guarantee Payments (without duplication of amounts 
theretofore paid by the Issuer), as and when due, regardless of any defense, 
right of set-off or counterclaim which the Issuer may have or assert.  The 
Guarantor's obligation to make a Guarantee Payment may be satisfied by direct 
payment of the required amounts by the Guarantor to the Holders or by causing 
the Issuer to pay such amounts to the Holders.

SECTION 5.2    WAIVER OF NOTICE AND DEMAND.

          The Guarantor hereby waives notice of acceptance of this Guarantee
Agreement and of any liability to which it applies or may apply, presentment,
demand for payment, any right to require a proceeding first against the Issuer
or any other Person before proceeding against the Guarantor, protest, notice of
nonpayment, notice of dishonor, notice of redemption and all other notices and
demands.



                                      13




SECTION 5.3    OBLIGATIONS NOT AFFECTED.

           The obligations, covenants, agreements and duties of the Guarantor 
under this Guarantee Agreement shall in no way be affected or impaired by 
reason of the happening from time to time of any of the following:

          (a)  the release or waiver, by operation of law or otherwise, of 
the performance or observance by the Issuer of any express or implied 
agreement, covenant, term or condition relating to the Preferred Securities 
to be performed or observed by the Issuer;

          (b)  the extension of time for the payment by the Issuer of all or 
any portion of the Distributions, Redemption Price, Liquidation Distribution 
or any other sums payable under the terms of the Preferred Securities or the 
extension of time for the performance of any other obligation under, arising 
out of, or in connection with, the Preferred Securities (other than an 
extension of time for payment of Distributions, Redemption Price, Liquidation 
Distribution or other sum payable that results from the extension of any 
interest payment period on the Debentures or any extension of the maturity 
date of the Debentures permitted by the Indenture);

          (c)  any failure, omission, delay or lack of diligence on the part 
of the Holders to enforce, assert or exercise any right, privilege, power or 
remedy conferred on the Holders pursuant to the terms of the Preferred 
Securities, or any action on the part of the Issuer granting indulgence or 
extension of any kind;

          (d)  the voluntary or involuntary liquidation, dissolution, sale of 
any collateral, receivership, insolvency, bankruptcy, assignment for the 
benefit of creditors, reorganization, arrangement, composition or 
readjustment of debt of, or other similar proceedings affecting, the Issuer 
or any of the assets of the Issuer;

          (e)  any invalidity of, or defect or deficiency in the Preferred 
Securities;

          (f)  the settlement or compromise of any obligation guaranteed 
hereby or hereby incurred; or

          (g)  any other circumstance whatsoever that might otherwise 
constitute a legal or equitable discharge or defense of a guarantor, it being 
the intent of this Section 5.3 that the obligations of the Guarantor 
hereunder shall be absolute and unconditional under any and all circumstances.

          There shall be no obligation on the Holders or any other Person to 
give notice to, or obtain consent of, the Guarantor with respect to the 
happening of any of the foregoing.



                                       14


SECTION 5.4    RIGHTS OF HOLDERS.

          (a)  The Holders of a Majority in liquidation amount of the 
Preferred Securities have the right to direct the time, method and place of 
conducting any proceeding for any remedy available to the Preferred Guarantee 
Trustee in respect of this Guarantee Agreement or exercising any trust or 
power conferred upon Preferred Guarantee Trustee under this Guarantee 
Agreement; and 

          (b)  notwithstanding the rights of the Preferred Guarantee Trustee 
to enforce this Guarantee Agreement under Article III, any Holder of 
Preferred Securities may institute a legal proceeding directly against the 
Guarantor to enforce the Preferred Guarantee Trustee's rights under this 
Guarantee Agreement, without first instituting a legal proceeding against the 
Issuer, the Preferred Guarantee Trustee or any other Person.

SECTION 5.5    GUARANTEE OF PAYMENT.

          This Guarantee Agreement creates a guarantee of payment and not of 
collection.

SECTION 5.6    SUBROGATION.

          The Guarantor shall be subrogated to all (if any) rights of the 
Holders of Preferred Securities against the Issuer in respect of any amounts 
paid to such Holders by the Guarantor under this Guarantee Agreement; 
PROVIDED, HOWEVER, that the Guarantor shall not (except to the extent 
required by mandatory provisions of law) be entitled to enforce or exercise 
any rights which it may acquire by way of subrogation or any indemnity, 
reimbursement or other agreement, in all cases as a result of payment under 
this Guarantee Agreement, if, at the time of any such payment, any amounts 
are due and unpaid under this Guarantee Agreement.  If any amount shall be 
paid to the Guarantor in violation of the preceding sentence, the Guarantor 
agrees to hold such amount in trust for the Holders and to pay over such 
amount to the Holders.

SECTION 5.7    INDEPENDENT OBLIGATIONS.

          The Guarantor acknowledges that its obligations hereunder are 
independent of the obligations of the Issuer with respect to the Preferred 
Securities and that the Guarantor shall be liable as principal and as debtor 
hereunder to make Guarantee Payments pursuant to the terms of this Guarantee 
Agreement notwithstanding the occurrence of any event referred to in 
subsections (a) through (g), inclusive, of Section 5.3 hereof.



                                       15


                                    ARTICLE VI     
                            LIMITATION OF TRANSACTIONS; 
                                  SUBORDINATION

SECTION 6.1    LIMITATION OF TRANSACTIONS.

          So long as any Preferred Securities remain outstanding, (a) the 
Guarantor will not (and the Guarantor will cause the Debenture Issuer not to) 
declare or pay any dividend on, or make any distributions with respect to, or 
redeem, purchase, or make a liquidation payment with respect to, any of its 
capital stock, and (b) the Guarantor will not (and the Guarantor will cause 
the Debenture Issuer not to) make any payment of interest, principal or 
premium, if any, on or repay, repurchase or redeem any debt securities 
(including guarantees) which rank pari passu with or junior to the 
Debentures, if at such time (i) there shall have occurred any Event of 
Default or (ii) there shall have occurred any Event of Default under the 
Declaration; PROVIDED, THAT, clause (a) above does not apply to any stock 
dividends paid by the Guarantor where the dividend stock is the same as that 
on which the dividend is being paid.

SECTION 6.2    RANKING.

          This Guarantee Agreement will constitute an unsecured obligation of 
the Guarantor and will rank (i) subordinate and junior in right of payment to 
all other liabilities of the Guarantor, including the Debenture Guarantee, 
(ii) pari passu with the most senior preferred or preference stock now or 
hereafter issued by the Guarantor and with any guarantee now or hereafter 
entered into by the Guarantor in respect of any preferred or preference stock 
of any Affiliate of the Guarantor, and (iii) senior to the Guarantor's common 
stock; PROVIDED, THAT, this Guarantee Agreement shall be pari passu with the 
guarantee issued by the Guarantor in connection with the      % Trust 
Originated Preferred Securities of MediaOne Finance Trust I.



                                       16


                                   ARTICLE VII     
                                   TERMINATION

SECTION 7.1    TERMINATION.

          This Guarantee Agreement shall terminate upon full payment of the 
Redemption Price of all Preferred Securities, upon the distribution of the 
Debentures to the Holder's of all of the Preferred Securities or upon full 
payment of the amounts payable in accordance with the Declaration upon 
liquidation of the Issuer.  Notwithstanding the foregoing, this Guarantee 
Agreement will continue to be effective or will be reinstated, as the case 
may be, if at any time any Holder of Preferred Securities must restore 
payment of any sums paid under the Preferred Securities or under this 
Preferred Securities Guarantee.

                                   ARTICLE VIII   
                                 INDEMNIFICATION

SECTION 8.1    EXCULPATION.

          (a)  No Indemnified Person shall be liable, responsible or 
accountable in damages or otherwise to the Guarantor or any Covered Person 
for any loss, damage or claim incurred by reason of any act or omission 
performed or omitted by such Indemnified Person in good faith in accordance 
with this Guarantee Agreement and in a manner such Indemnified Person 
reasonably believed to be within the scope of the authority conferred on such 
Indemnified Person by this Guarantee Agreement or by law, except that an 
Indemnified Person shall be liable for any such loss, damage or claim 
incurred by reason of such Indemnified Person's negligence or willful 
misconduct with respect to such acts or omissions; and

          (b)  an Indemnified Person shall be fully protected in relying in 
good faith upon the records of the Guarantor and upon such information, 
opinions, reports or statements presented to the Guarantor by any Person as 
to matters the Indemnified Person reasonably believes are within such other 
Person's professional or expert competence and who has been selected with 
reasonable care by or on behalf of the Guarantor, including information, 
opinions, reports or statements as to the value and amount of the assets, 
liabilities, profits, losses, or any other facts pertinent to the existence 
and amount of assets from which Distributions (as defined in the Declaration) 
to Holders of Preferred Securities might properly be paid.

SECTION 8.2    INDEMNIFICATION.

          (a)  To the fullest extent permitted by applicable law, the 
Guarantor shall indemnify and hold harmless each Indemnified Person from and 
against any loss, damage or claim incurred by such Indemnified Person by 
reason of any act or omission performed or omitted by such Indemnified Person 
in good faith in accordance with this Guarantee Agreement and in a manner 
such Indemnified Person reasonably believed to be within the scope of 
authority conferred on such Indemnified Person by this in accordance with 
this Guarantee Agreement, except




                                       17



that no Indemnified Person shall be entitled to be indemnified in respect of 
any loss, damage or claim incurred by such Indemnified Person by reason of 
negligence or willful misconduct with respect to such acts or omissions; and

          (b)  to the fullest extent permitted by applicable law, expenses 
(including legal fees) incurred by an Indemnified Person in defending any 
claim, demand, action, suit or proceeding shall, from time to time, be 
advanced by the Guarantor prior to the final disposition of such claim, 
demand, action, suit or proceeding upon receipt by the Guarantor of an 
undertaking by or on behalf of the Indemnified Person to repay such amount if 
it shall be determined that the Indemnified Person is not entitled to be 
indemnified as authorized in Section 8.2(a).


                                  ARTICLE IX
                                 MISCELLANEOUS

SECTION 9.1    SUCCESSORS AND ASSIGNS.

          All guarantees and agreements contained in this Guarantee Agreement 
shall bind the successors, assigns, receivers, trustees and representatives 
of the Guarantor and shall inure to the benefit of the Holders of the 
Preferred Securities then outstanding.

SECTION 9.2    AMENDMENTS.

          Except with respect to any changes which do not adversely affect 
the rights of Holders (in which case no consent of Holders will be required), 
this Guarantee Agreement may only be amended with the prior approval of the 
Holders of at least a majority in liquidation amount of the Preferred 
Securities.  The provisions of Section 12.2 of the Declaration with respect 
to meetings of Holders of the Securities apply to the giving of such approval.

SECTION 9.3    NOTICES.

          All notices provided for in this Guarantee Agreement shall be in 
writing, duly signed by the party giving such notice, and shall be delivered, 
telecopied or mailed by registered or certified mail, as follows:

          (a)  if given to the Preferred Guarantee Trustee at the Preferred 
Guarantee Trustee's mailing address set forth below (or such other address as 
the Preferred Guarantee Trustee may give notice of to the Holders of the 
Preferred Securities):

               The First National Bank of Chicago
               One First National Plaza
               Suite 0126
               Chicago, Illinois 60670-0126


                                       18



          (b)  if given to the Guarantor, at the Guarantor's mailing address 
set forth below (or such other address as the Guarantor may give notice of to 
the Holders of the Preferred Securities):

               U S WEST, Inc. (to be renamed "MediaOne Group, Inc.")
               7800 East Orchard Road
               Englewood, Colorado  80111

          (c)  if given to any Holder of Preferred Securities, at the address 
set forth on the books and records of the Issuer.

          All such notices shall be deemed to have been given when received 
in person, telecopied with receipt confirmed, or mailed by first class mail, 
postage prepaid except that if a notice or other document is refused delivery 
or cannot be delivered because of a changed address of which no notice was 
given, such notice or other document shall be deemed to have been delivered 
on the date of such refusal or inability to deliver.


                                       19



SECTION 9.4    BENEFIT.

          This Guarantee Agreement is solely for the benefit of the Holders 
of the Preferred Securities and subject to Section 3.1(a) is not separately 
transferable from the Preferred Securities.

SECTION 9.5    GOVERNING LAW.

          THIS GUARANTEE AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED AND 
INTERPRETED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK.

          THIS GUARANTEE AGREEMENT is executed as of the day and year first 
above written.

                                       U S WEST, Inc. (to be renamed "MediaOne
                                       Group, Inc.")


                                       By:____________________________________
                                          Name:
                                          Title:



                                       THE FIRST NATIONAL BANK OF
                                       CHICAGO
                                       as Preferred Guarantee Trustee


                                       By:____________________________________
                                          Name:
                                          Title:


                                       20