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Cost Basis Guide
SBC Communications Inc. (formerly Southwestern Bell Corporation)
January 1, 1984 - AT&T divested Southwestern Bell and other regional telephone operating companies.
May 22, 1987 - distribution date for 3-for-1 stock split (record date May 4, 1987).
May 25, 1993 - distribution date for 2-for-1 stock split (record date May 7, 1993).
March 19, 1998 - distribution date for 2-for-1 stock split (record date February 20, 1998).
Pacific Telesis Group
January 1, 1984 - AT&T divested Pacific Telesis Group and other regional telephone operating companies.
June 9, 1986 - distribution date for 2-for-1 stock split (record date May 9, 1986).
March 25, 1987 - distribution date for 2-for-1 stock split (record date March 9, 1987).
March 21, 1994 - record date for spinoff of AirTouch Communications (distribution date April 1, 1994).
April 1, 1997 - effective date of acquisition by SBC Communications Inc.
Southern New England Telecommunications Corporation
May 29, 1949 - estimated distribution date for 4-for-1 stock split
October 15, 1983 - distribution date for 2-for-1 stock spli
January 16, 1990 - distribution date for 2-for-1 stock split
October 26, 1998 - effective date of acquisition by SBC Communications Inc.
Ameritech Corporation
January 26, 1987 - distribution date for 3-for-2 stock split (record date December 31, 1986)
January 26, 1989 - distribution date for 2-for-1 stock split (record date December 30, 1998)
January 24, 1994 - distribution date for 2-for-1 stock split (record date December 31, 1993)
January 26, 1998 - distribution date for 2-for-1 stock split (record date December 31, 1997)
October 8, 1999 - effective date of acquisition by SBC Communications Inc.
Contact Information
For individual shareowners and brokers, call EquiServe Trust Company at 1-800-351-7221.

For financial analysts and institutional investors, please call (210) 351-3327.

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