SIDLEY & AUSTIN A PARTNERSHIP INCLUDING PROFESSIONAL CORPORATIONS CHICAGO ______ DALLAS ______ LOS ANGELES ______ NEW YORK 1722 EYE STREET, N.W. WASHINGTON, D.C. 20006 TELEPHONE 202 736 8000 FACSIMILE 202 736 8711 FOUNDED 1866 HONG KONG ______ LONDON ______ SHANGHAI ______ SINGAPORE ______ TOKYO WRITER'S DIRECT NUMBER WRITER'S E-MAIL ADDRESS (202) 736-8273 lmarcil@sidley.com December 10, 1999 Ms. To-Quyen Truong Associate Chief Cable Services Bureau Federal Communications Commission 445 12th Street, S.W. Washington, DC 20554 Re: In the Matter of Applications for Transfer of Control to AT&T Corp. ("AT&T") of Licenses and Authorizations Held by MediaOne Group, Inc. ("MediaOne") Dear Ms. Truong: This letter identifies by Bates No. the documents referenced in the response by AT&T Corp. and MediaOne Group, Inc. to Question 12 of your November 3, 1999 request for information. ? AT&T study referenced in footnote 2 - Bates Nos. AT&T 000915 (produced November 24, 1999) ? MediaOne surveys referenced at the top of page 9 - Bates Nos. AT&T 000788 - AT&T 000840, Bates Nos. AT&T 000841 - AT&T 000914 (produced November 24, 1999) ? MediaOne analysis referenced in footnote 4 - Bates Nos. AT&T 002399 - AT&T 002400 (produced today under separate cover pursuant to the Protective Order in this proceeding) ? AT&T documents referenced in footnote 5 - Bates Nos. AT&T 000961 - AT&T 000994, Bates Nos. AT&T 000995 - AT&T 001000 and AT&T 002000-2018, and Bates Nos. AT&T 002019 - 002045 (produced December 2, 1999) Sincerely, Lorrie M. Marcil cc: To-Quyen Truong Sunil Daluvoy Royce Dickens ::ODMA\PCDOCS\WASHINGTON\142870\1 SIDLEY & AUSTIN WASHINGTON, D.C. Ms. To-Quyen Truong December 10, 1999 Page 2