<PAGE>

                                MEDIAONE GROUP, INC.
                                AND ITS SUBSIDIARIES

I.   MediaOne Group, Inc. (DE 5/12/95)  amended from U S WEST, Inc.

     A.   MediaOne of Colorado, Inc. (CO 5/10/93); amended name from MediaOne
          Group, Inc. 9-16-98; amended name from U S WEST Multimedia
          Communications, Inc. 4/13/98; amended name from U S WEST Cable
          Corporation 9/16/93.
          
          1.   MediaOne of Delaware, Inc. (DE 6/13/96); amended name from
               Continental Cablevision, Inc. 4/15/97; amended name from
               Continental Merger Corporation 11/15/96.
               a.   MediaOne HSD, LLC (DE 5-7-98; 18.4% interest)
               b.   Continental Cablevision Asia Pacific, Inc. (MA 5/20/94)
                    (1)  Continental Cablevision Singapore Pte Ltd. (Singapore
                         9/6/94)
               c.   MediaOne of Minnesota, Inc. (MN 6/20/86); amended name from
                    Continental Cablevision of Minnesota, Inc. 5/15/98.
                    (1)  MediaOne Communications Holding Company, Inc. (DE
                         12/21/88); amended name from Minnesota Cable
                         Communications Holding Company, Inc. 5/22/98.
                    (2)  MediaOne North Central Communications Corporation (DE
                         6/3/86); amended name from North Central Cable
                         Communications Corporation 5/22/98.
                         (a)  MediaOne of Burnsville/Eagan, Inc. (MN 6/29/82);
                              amended name from Group W Cable of
                              Burnsville/Eagan, Inc. 5/15/98.
                         (b)  MediaOne of Columbia Heights/Hilltop, Inc. (MN
                              5/14/81); amended name from Group W Cable of
                              Columbia Heights/Hilltop, Inc. 5/15/98.
                         (c)  MediaOne of the North Suburbs, Inc. (MN 6/29/82);
                              amended name from Group W Cable of the North
                              Suburbs, Inc. 5/15/98.
                         (d)  MediaOne of the North Central Suburbs, Inc. (MN
                              6/29/82); amended name from Group W Cable of the
                              North Central Suburbs, Inc. 5/15/98.
                         (e)  MediaOne of Quad Cities, Inc. (MN 4/19/82); Group
                              W Cable of Quad Cities, Inc. 5/15/98.
                         (f)  MediaOne of Ramsey/Washington, Inc. (MN 6/29/81);
                              amended name from Group W Cable of
                              Ramsey/Washington, Inc. 5/15/98.
               d.   MediaOne of St. Paul, Inc. (MN 2/23/83); amended name from
                    Continental Cablevision of St. Paul, Inc. 5/15/98.
               e.   Continental Cablevision Satellite Company of Northern
                    California, Inc. (CA 11/6/90)

<PAGE>

                    (1)  MediaOne Satellite II, Inc. (DE 10/3/97; 50% interest,
                         other 50% interest held by Continental Satellite
                         Company of Florida, Inc.)
               f.   Continental Satellite Company, Inc. (MA 11/17/86)
               g.   Continental Satellite Company of Chicago, Inc. (IL 1/13/94)
               h.   Continental Satellite Company of Minnesota, Inc. (MN
                    5/31/94)
               i.   Continental Satellite Company of New England, Inc. (NH
                    11/1/90)
               j.   Continental Satellite Company of Ohio, Inc. (OH 1/23/92)
               k.   Continental Satellite Company of Virginia, Inc. (VA 10/30/90
               l.   MediaOne Acquisitions of Northern Illinois, Inc. (IL
                    3/9/95); amended name from Continental Cablevision
                    Acquisitions of Northern Illinois, Inc.  4/29/97.
               m.   MediaOne Digital Radio, Inc. (MA 1/30/91); amended name from
                    Continental Cablevision Digital Radio, Inc. 4/29/97.
               n.   MediaOne Enterprises, Inc. (RI 6/23/69); amended name from
                    Colony Communications, Inc. 5/29/97.
                    (1)  CCF Management Services, Inc. (FL 11/18/92)
                    (2)  CCI Management Services, Inc. (CA 12/16/91)
                    (3)  MediaOne of Lakewood, Inc. (CA 10/21/91); amended name
                         from Colony Cablevision of Lakewood, Inc. 9/5/97.
                    (4)  Copley/Colony, Inc. (DE 10/9/81)
                         (a)  MediaOne of Costa Mesa, Inc. (CA 10/22/80);
                              amended name from Copley/Colony of Costa Mesa,
                              Inc. 9/5/97.
                         (b)  MediaOne of Cypress, Inc. (CA 3/21/83); amended
                              name from Copley/Colony Cablevision of Cypress,
                              Inc. 9/5/97.
                         (c)  MediaOne of Harbor, Inc. (CA 8/14/80); amended
                              name from Copley/Colony Harbor Cablevision, Inc.
                              9/5/97.
                         (d)  MediaOne of Lomita, Inc. (CA 2/16/82); amended
                              name from Copley/Colony Cablevision of Lomita,
                              Inc. 9/5/97.
                         (e)  MediaOne of Los Angeles County, Inc. (CA 8/2/82);
                              amended name from Copley/Colony Cablevision of Los
                              Angeles County, Inc. 9/5/97.
                         (f)  MediaOne of Orange County, Inc. (CA 9/8/83);
                              amended name from Copley/Colony Cablevision of
                              Orange County, Inc. 9/5/97.
                    (5)  King Videocable Company (WA 9/2/65)
                         (a)  MediaOne of the Upper Midwest, Inc. (WA 7/2/88);
                              amended name from King Videocable 
                              Company-Minnesota 5/26/98.
                         (b)  King Videocable Company-Twin Falls (ID 6/10/64)
                              (i)  King Videocable Company-Idaho (CO 12/5/69)

                                       2
<PAGE>

                         (c)  MediaOne of Newhall, Inc. (CA 1/10/67); amended
                              name from King Videocable Company-Newhall 9/15/97.
                         (d)  MediaOne of North Valley, Inc. (CA 1/10/67);
                              amended name from King Videocable Company-Valencia
                              9/15/97.
                    (6)  MediaOne Interconnects, Inc. (DE 3/15/83); amended name
                         from Colony Interconnects, Inc. 4/28/97.
                    (7)  MediaOne of Greater New York, Inc. (RI 7/6/70); amended
                         name from U.S. Cablevision Corp. 6/20/97.
                    (8)  MediaOne of South Florida, Inc. (FL 3/20/71); amended
                         name from Dynamic Cablevision of Florida, Inc. 4/29/97.
                    (9)  MediaOne of Southern New England, Inc. (MA 6/16/70);
                         amended name from Continental Cablevision of Southern
                         New England, Inc. 5/15/97.
               o.   MediaOne Holdings 1, Inc. (DE 9/5/78); amended name from
                    American Cablesystems Corporation 4/28/97.
                    (1)  MediaOne of Los Angeles, Inc. (CA 1/9/86); amended name
                         from American Cablesystems of California, Inc. 9/5/97.
                         (a)  MEDIAONE OF SOUTH CENTRAL LOS ANGELES, INC.
                              amended from American Cablesystems of South
                              Central Los Angeles, Inc. (DE 4/3/87; 84.16%
                              interest)
                    (2)  MediaOne of Milton, Inc. (MA 7/28/81; 99% interest);
                         amended name from Milton Cablesystems Corporation
                         5/15/97.
                    (3)  MediaOne of New York, Inc. (NY 6/2/83); amended name
                         from American Cablesystems of New York, Inc. 5/16/97.
               p.   MediaOne Investments, Inc. (DE 4/3/97); amended name from
                    Continental Cablevision Investments, Inc. 4/28/97.
                    (1)  Fostoria Communications, Inc. (MA 8/22/95)
                    (2)  MediaOne Cable News, Inc. (MA 9/24/90); amended name
                         from CCI Cable News, Inc. 4/29/97.
                    (3)  MediaOne of Southeast Michigan, Inc. (MI 6/29/95);
                         amended name from Continental Cablevision of Southeast
                         Michigan, Inc. 5/1/97.
                    (4)  MediaOne Programming Partners 1, Inc. (MA 8/10/93);
                         amended name from Continental Programming Partners I,
                         Inc. 4/29/97.
               q.   MediaOne of Australia, Inc. (MA 2/17/94); amended name from
                    Continental Cablevision of Australia, Inc. 5/15/97.
               r.   MediaOne of Brockton, Inc. (DE 11/30/81; 99.9% interest);
                    amended name from Continental Cablevision Brockton, Inc.
                    5/9/97.

                                       3

<PAGE>

               s.   MediaOne of California, Inc. (CA 3/1/69); amended name from
                    Continental Cablevision of California, Inc. 9/5/97.
               t.   MediaOne of Greater Florida, Inc. (FL 2/25/71); amended name
                    from Continental Cablevision of Jacksonville, Inc. 4/29/97.
                    (1)  Alrif Co., Inc. (MA 6/4/85)
                    (2)  Continental Satellite Company of Florida, Inc. (FL
                         1/20/94)
                         (a)  MediaOne Satellite II, Inc. (DE 10/3/97; 50%
                              interest other 50% held by Continental Cablevision
                              Satellite Company of Northern California, Inc.)
               u.   MediaOne of Illinois, Inc. (DE 10/4/67); amended name from
                    Continental Cablevision of Illinois, Inc. 4/28/97.
               v.   MediaOne of Massachusetts, Inc. (MA 1/6/72); amended name
                    from Continental Cablevision of Massachusetts, Inc. 5/15/97.
               w.   MediaOne of Metropolitan Detroit, Inc. (MI 3/18/74); amended
                    name from Continental Cablevision of Michigan, Inc. 4/30/97.
                    (1)  Continental Satellite Company of Michigan, Inc. (MI
                         12/27/93)
                    (2)  MediaOne of Eastern Michigan, Inc. (DE 1/17/95);
                         amended name from Continental Cablevision of Eastern
                         Michigan, Inc. 4/28/97.
               x.   MediaOne of Needham, Inc. (DE 11/19/82; 99.8% interest);
                    amended name from Continental Cablevision of Needham, Inc.
                    4/28/97.
               y.   MediaOne of New England, Inc. (NH 1/30/68); amended name
                    from Continental Cablevision of New England, Inc. 4/30/97.
                    (1)  MediaOne of New Hampshire, Inc. (MD 10/27/44); amended
                         name from Continental Cablevision of Manchester, Inc.
                         4/29/97.
               z.   MediaOne of Northern Illinois, Inc. (DE 8/29/79); amended
                    name from Continental Cablevision of Northern Illinois, Inc.
                    4/28/97.
               aa.  MediaOne of Ohio, Inc. (OH 5/5/66); amended name from
                    Continental Cablevision of Ohio, Inc. 4/29/97.
               bb.  MediaOne of Sierra Valleys, Inc. (CA 7/1/86); amended name
                    from Continental Cablevision of Sierra Valleys, Inc. 9/5/97.
                    (1)  MediaOne of Fresno, Inc. (CA 9/10/75); amended name
                         from Fresno Cable TV Limited 11/6/97.
                    (2)  MediaOne of Nevada, Inc. (NV 1/18/78); amended name
                         from Telcab Communications, Inc. 4/30/97.
                    (3)  MediaOne of Northern California, Inc. (CA 10/24/60);
                         amended name from Nor Cal Cablevision, Inc. 9/5/97.
               cc.  MediaOne of Virginia, Inc. (VA 7/27/77); amended name from
                    Continental Cablevision of Virginia, Inc. 4/29/97.
                    (1)  Continental Cablevision of Richmond, Inc. (VA 6/12/78;
                         CL.A 100% PS. 100%, CL.B 64%) d/b/a MediaOne of
                         Richmond, Inc. 5/19/97.

                                       4

<PAGE>

               dd.  MediaOne of Western New England, Inc. (DE 2/10/82); amended
                    name from Continental Cablevision of Western New England,
                    Inc. 4/28/97.
               ee.  MediaOne Telecommunications Corp. (MA 11/6/92); amended name
                    from Continental Telecommunications Corp. 4/29/97.
                    (1)  Continental Australia Programming, Inc. (MA 11/1/93)
                    (2)  MediaOne Telecommunications Corp. of Minnesota (MN
                         3/12/93); amended name from Continental
                         Telecommunications Corp. of Minnesota 5/15/98.
                    (3)  Continental Telecommunications Corp. of Virginia (VA
                         3/4/93)
                    (4)  Continental Teleport Partners, Inc. (MA 12/10/92)
                    (5)  MediaOne Connect, Inc. (DE 10/8/97)
                    (6)  MediaOne Express Midwest, Inc. (OH 12/21/95); amended
                         name from Continental Online - Midwest, Inc. 4/29/97.
                         (a)  MediaOne HSD, LLC (DE 5-7-98; 7.5% interest)
                    (7)  MediaOne Express of California, Inc. (CA 12/21/95);
                         amended  name from Continental Online of California,
                         Inc. 5/22/97.
                         (a)  MediaOne HSD, LLC (DE 5-7-98; 10% interest)
                    (8)  MediaOne Express of Florida, Inc. (FL 12/21/95);
                         amended name  from Continental Online of Florida, Inc.
                         4/29/97.
                         (a)  MediaOne HSD, LLC (DE 5-7-98; 26.9% interest)
                    (9)  MediaOne Express of Illinois, Inc. (IL 12/21/95);
                         amended name from Continental Online of Illinois, Inc.
                         4/29/97.
                    (10) MediaOne Express of New England, Inc. (MA 12/19/95);
                         amended name from Continental Online of New England,
                         Inc. 4/29/97.
                         (a)  MediaOne HSD, LLC (DE 5-7-98; 31.4% interest)
                    (11) MediaOne Express of Virginia, Inc. (VA 1/24/97);
                         amended name from Continental Online of Virginia, Inc.
                         4/29/97.
                    (12) MediaOne Fiber Technologies, Inc. (FL 1/17/92; 80%
                         interest); amended name from Continental Fiber
                         Technologies, Inc. 5/29/97.
                    (13) MediaOne Florida Telecommunications, Inc. (FL 6/19/95);
                         amended name from Continental Florida
                         Telecommunications, Inc. 4/29/97.
                    (14) MediaOne Information Technology Systems, Inc. (MA
                         1/9/96); amended name from Continental Information
                         Technology Systems, Inc. 4/29/97.
                    (15) MediaOne International Programming, Inc. (MA 10/8/93);
                         amended name from Continental International
                         Programming, Inc. 4/29/97.

                                       5

<PAGE>

                    (16) MediaOne Telecommunications Corp. of New England (MA
                         11/6/92); amended name from Continental
                         Telecommunications Corp. of New England 4/29/97.
                    (17) MediaOne Telecommunications Corp. of Ohio (OH
                         12/21/93); amended name from Continental
                         Telecommunications Corp. of Ohio, Inc. 5/16/97.
                    (18) MediaOne Telecommunications of California, Inc. (CA
                         8/23/95); amended name from Continental
                         Telecommunications of  California, Inc. 5/22/97.
                    (19) MediaOne Telecommunications of Illinois, Inc. (IL
                         11/9/92); amended from Continental Telecommunications
                         of Illinois, Inc. 4/29/97.
                    (20) MediaOne Telecommunications of Massachusetts, Inc. (MA
                         12/5/94); amended name from Continental
                         Telecommunications of  Massachusetts, Inc. 4/29/97.
                    (21) MediaOne Telecommunications of Michigan, Inc. (MI
                         12/18/95); amended name from Continental
                         Telecommunications of Michigan, Inc. 4/30/97.
                    (22) MediaOne Telecommunications of New Hampshire, Inc. (NH
                         12/20/95); amended name from CCI Telecommunications of
                         New  Hampshire, Inc. 4/30/97.
                    (23) MediaOne Telecommunications of Ohio, Inc. (OH
                         12/26/95);amended name from Continental
                         Telecommunications of  Ohio, Inc. 4/29/97.
                    (24) MediaOne Telecommunications of Virginia, Inc. (VA
                         2/1/96); amended name from CCI Telecommunications of
                         Virginia, Inc. 4/29/97.
               ff.  S.A. Ventures, Inc. (MA 2/7/94)
                    (1)  S.A. Ventures (Delaware), Inc. (DE 9/22/97)
               gg.  S.A. Ventures II, Inc. (MA 8/12/97)

          2.   MediaOne Capital Corporation (CO 11/9/89); amended name from 
               U S WEST Capital Corporation 5/1/98; Holding company for Capital
               Assets Group companies.
               a.   MediaOne Capital (America), Inc. (CO 7/20/90); amended name
                    from U S WEST Capital (America) Inc. 5/1/98.
               b.   MediaOne Capital Limited (U. K. 12/1/90); amended name from
                    U S WEST Capital Limited effective 6/23/98.
               c.   Commercial Reinsurance Company (OK 12/23/93; 91.6% interest)
               d.   MediaOne Financial Services, Inc. (CO 1/4/84; amended name
                    from U S WEST Financial Services, Inc. 6/15/98).
                    (1)  Commercial Funding, Inc. (NY 11/12/85)
                    (2)  MediaOne Delta, Inc. (CO 12/29/89); amended name from 
                         U S WEST Delta, Inc. 5/1/98.
                    (3)  MediaOne Finance Corporation (CO 10/5/95); amended name
                         from USW Finance Corporation 5/1/98.

                                       6

<PAGE>

                    (4)  U S WEST Financial Services Foreign Sales, Inc. (Virgin
                         Islands 7/27/90)
                    (5)  MediaOne FS Leasing 1995, Inc. (CO 12/19/95); amended
                         name from USWFS Leasing 1995, Inc. 5/1/98.
                    (6)  New York Cogenco, Inc. (DE 5/29/92); amended name from
                         Onondaga Cogeneration Corporation 6/12/92.
                    (7)  MediaOne Shacres, Inc. (CA 8/29/91); amended from USW
                         Shacres, Inc. 6/2/98.
                    (8)  SIFD ONE, LTD. (DE 11/15/90)
                         (a)  MediaOne FSC ONE, LTD. (Bermuda 11/16/90) amended
                              from USW FSC ONE, LTD. 7/10/98.
                    (9)  SIFD TWO, LTD. (DE 1/3/91)
                         (a)  MediaOne FSC TWO, LTD. (Bermuda 1/4/91) amended
                              from USW FSC TWO, LTD. 7/10/98.
                    (10) SIFD THREE, LTD. (DE Business Trust 4/1/91)
                         (a)  MediaOne FSC THREE, LTD. (Bermuda 3/18/91) amended
                              from USW FSC THREE, LTD. 7/10/98.
                    (11) MediaOne SPE, Inc. (DE 8/1/97); amended name from
                         USWSPE, Inc. 5/1/98.
                    (12) MediaOne Leveraged Lease Partners 1997, L.P.
                    (13) Valertex, Inc. (TX 10/12/90)
               e.   MediaOne Services (America) Inc. (CO 7/20/90); amended name
                    from U S WEST Services (America) Inc. 5/1/98.
               f.   MediaOne Services Limited (U.K. 1/26/90); amended name from
                    U S WEST Services Limited effective 6/23/98.
                                   
          3.   MediaOne Cellular Holdings, Inc. (DE 7/18/94); amended name from
               U S WEST Cellular Holdings, Inc. 5/1/98.

          4.   Domestic Cable, Inc. (CO 1/21/97)
     
          5.   Far East Investment Company (CO 8/19/97)
               a.   MediaOne Far East Telecommunications, Inc. (DE 6/17/94; 49%
                    interest) amended name from U S WEST Far East
                    Telecommunications, Inc. 5/1/98.
     
          6.   MediaOne Interactive Services, Inc. (CO 8/22/95); amended name
               from US WEST Interactive Services, Inc. 4/13/98.
     
          7.   MediaOne International Holdings, Inc. (DE 3/11/88); amended name
               from U S WEST International Holdings, Inc. 5/1/98.
               a.   MediaOne Cable Partnership Holdings, Inc. (CO 6/13/89);
                    amended name from U S WEST Cable Partnership Holdings, Inc.
                    5/1/98.

                                       7

<PAGE>

               b.   MediaOne Cable Programming Corporation, Inc. (CO 7/11/92);
                    amended name from U S WEST Cable Programming Corporation
                    5/1/98.
               c.   MediaOne Czech Cable Company (DE 11/10/94); amended name
                    from U S WEST Czech Cable Company 5/1/98.
               d.   MediaOne Espana Telecommunications, Inc. (DE 12/8/93);
                    amended name from U S WEST Espana Telecommunications, Inc.
                    5/1/98; amended name from U S WEST Hungarian
                    Telecommunications, Inc. 6/27/94.
               e.   MediaOne Europe, Inc. (CO 6/29/92); amended name from 
                    U S WEST Europe, Inc. 5/1/98.
               f.   MediaOne Far East Telecommunications, Inc. (DE 6/17/94; 51%
                    interest) amended name from U S WEST Far East
                    Telecommunications, Inc. 5/1/98.
               g.   MediaOne Foreign Investments, Inc. (CO 7/14/88); amended
                    name from U S WEST Foreign Investments, Inc. 5/1/98; amended
                    name from Euclid, Inc. 1/18/89.
               h.   MediaOne International, Inc. (CO 1/28/83); amended name from
                    U S WEST International, Inc. 5/1/98; amended name from 
                    U S WEST Holdings, Inc. 2/15/85.
               I.   MEDIAONE JAPAN, INC. (DE 1-23-99)
               j.   WatchMark, Inc. (CO 11/21/94); amended name from U S WEST
                    International Systems Group, Inc. 5/1/98.
                    (1)  WatchMark Technologies, Inc. (CO 11/21/94); amended
                         name from U S WEST ISG Technologies, Inc. 5/1/98.
                    (2)  WATCHMARK OPTIONS CORP. (TX 1-30-86); acquired by
                         WatchMark, Inc. 12-22-98
               k.   Overseas Operations, Inc. (CO 3/7/89); amended name U S WEST
                    Overseas Operations, Inc. 3/19/97
               l.   Overseas Operations II, Inc. (DE 3/19/97)
               m.   MediaOne PCN, Inc. (CO 1/23/91); amended name from USW PCN,
                    Inc. 5/1/98; amended name from U S WEST U.K. PCN, Inc.
                    2/11/91.
               n.   RTDC Holdings, Inc. (DE 10/31/95; approximately 67.8%
                    interest)
                    (1)  Russian Telecommunications Development Corporation (DE
                         12/15/93)
                         (a)  Russian Telecommunications Asset Management
                              Corporation (DE 10/3/94)
                         (b)  Russian Telecommunications Development Finance
                              Corporation (DE 3/19/96)
                         (c)  Russian Telecommunications Development Holding
                              Corporation (DE 10/3/94)
                         (d)  Russian Telecommunications Development Holding
                              Corporation II (DE 11/12/97)
                         (e)  Russian Telecommunications Development Management
                              Corporation (DE 12/15/93)

                                       8

<PAGE>

                         (f)  U S WEST SERVICES (RUSSIA 12/22/93) 
                              DISSOLVED 7-1-97
               o.   MediaOne U. K. Cable, Inc. (CO 2/7/90); amended name from U
                    S WEST U.K. Cable, Inc. 5/1/98; amended name from U S WEST
                    Avon Partnership Holdings, Inc. 7/30/90.
               p.   MediaOne India B. V. (Netherlands 6/25/93); amended name
                    from U S WEST India B.V. 6/15/98.
                    (1)  MEDIAONE CELLULAR INVESTMENTS COMPANY (Mauritius 
                         3-27-95); amended from U S WEST Cellular Investments 
                         Company 9-1-98 (99% interest)
               q.   MediaOne International B.V. (Netherlands 11/14/90); amended
                    from U S WEST International B.V. 6/15/98.
                    (1)  U S WEST Deutschland GmbH (Germany 12/4/91); amended
                         name from Maxi Beteiligungs GmbH 9/21/92; acquired
                         9/24/92.
                    (2)  U S WEST Polska Sp. z.o.o (Poland 1/3/92)
               r.   MediaOne U.K. Limited  (U.K. 3/3/89);  amended name from 
                    U S WEST U.K. Limited 4/6/98.
                    (1)  U S WEST Cable Partnership Limited (U.K. 5/22/89)
                         (Inactive)
                    (2)  WatchMark Limited (U.K. 2/24/89); amended name from 
                         U S WEST International Systems Group Limited 6/4/98;
                         amended name from U S WEST Cable Communications Limited
                         10/19/94.
                    (3)  WatchMark Installation Services Limited (U.K.
                         10/12/94); amended from U S WEST ISG Installation
                         Services Limited 6/4/98; amended name from Duskmist
                         Limited 11/23/94.
                    (4)  MediaOne Marketing Resources (UK) Limited (U.K.
                         2/3/94); amended name from U S WEST Marketing Resources
                         (UK) Ltd. 4/6/98.
               s.   U S WEST Westelcom B.V. (Netherlands 8/12/92)

          8.   MediaOne Investments Holdings, Inc. (CO 11/1/85); amended name
               from U S WEST Investments, Inc. 6/1/98.
               a.   MediaOne Real Estate, Inc. (CO 10/11/83); amended name from
                    US WEST Real Estate, Inc. 5/1/98; amended name from BetaWest
                    Properties, Inc. 5/11/90.
                    (1)  MediaOne Fresno Properties, Inc. (CO 8/19/94); amended
                         name from USW Fresno, Inc. 5/1/98.
                    (2)  Taurus Properties, Inc. (CO 2/22/85)
                    (3)  Verend, Inc. (TX 11/3/89)

          9.   MediaOne PCS Services, Inc. (CO 7/27/95); amended name from 
               U S WEST PCS Services, Inc. 5/1/98.
          10.  MediaOne HSD, LLC (DE 5-7-98; 5.8% interest)

                                       9

<PAGE>

          11.  MEDIAONE SPC I, LLC  (DE  11-9-98)
          
               a.   MEDIAONE SPC II, LLC (DE 11-9-98)
          
          12.  MEDIAONE CABLE ADVERTISING OF METROPOLITAN ATLANTA, L.L.C
               (CO 8-12-98)
          
          13.  MEDIAONE TELECOMMUNICATIONS OF GEORGIA, L.L.C  (CO 7-21-98)

     B.   MediaOne Financing A amended from U S WEST Financing I (DE Business
          Trust 3/1/95) 6-12-98

     C.   MediaOne Financing B amended from U S WEST Financing II (DE Business
          Trust 3/1/95) 6-12-98
     
     D.   MEDIAONE B.V. HOLDINGS, INC. (DE 11-19-98)
     
     E.   MediaOne Finance Trust I (DE 4/13/98)

     F.   MediaOne Finance Trust II (DE 4/13/98)
     
     G.   MEDIAONE FINANCE TRUST III  (DE 10-5-98)
                      
     
     H.   MEDIAONE FINANCE TRUST IV (DE 10-5-98)
     
     I.   MEDIAONE FINANCE TRUST V (DE 10-5-98)
     
     J.   MEDIAONE FINANCE TRUST VI  (DE 10-5-98)
     
     K.   MediaOne Group Funding, Inc. (DE 4/13/98)
     
     L.   MediaOne of Michigan, Inc. (DE 11/27/96)
     
     M.   MediaOne Federal Relations, Inc. (DE 5/8/97); amended name from USW,
          Inc. 5/15/98.

     N.   MEDIAONE RACING , INC. (DE 1-11-99)
     
     O.   Western Range Insurance Co. (VT 4/1/87)
     
     P.   MEDIAONE TWE HOLDINGS, INC. (DE 3-15-99)  Level 2 under MediaOne of
          Colorado, Inc.

                                       10