Stockholder Services

Besides the original date when you acquired your AT&T Inc. shares, you also will need to know your original cost per share. If you acquired shares at different times, you will need to do a separate calculation for each situation.
Original Cost per Share (including brokerage fees)	$
Starting with the first event after you acquired your shares, click at the appropriate step. Your cost basis will be automatically calculated.
Click Here if you owned AT&T shares before the divestiture of Southwestern Bell and other regional telephone operating companies Jan. 1, 1984.
$ per AT&T share x 0.949 =	$	New Cost Basis
(The Southwestern Bell allocation factor at divestiture was 0.0949 which must be multiplied by 10 because shareholders received one-tenth share in each of the regional companies for each share of old AT&T.)
Click Here if you acquired your AT&T Inc. shares after Jan. 1 1984 (divestiture) and on or before May 22, 1987 (Southwestern Bell 3-for-1 stock split distribution date).
$ (per share) ÷ 3 =	$	New Cost Basis
Click Here if you acquired your shares after May 22, 1987 (SBC 3-for-1 stock split distribution date), and on or before May 25, 1993 (Southwestern Bell 2-for-1 stock split distribution date).
$ (per share) ÷ 2 =	$	New Cost Basis
Click Here if you acquired your AT&T Inc. shares after May 25, 1993 (Southwestern Bell 2-for-1 stock split distribution date), and on or before March 19, 1998 (SBC 2-for-1 stock split distribution date).
$ (per share) ÷ 2 =	$	New Cost Basis
If you acquired your AT&T Inc. shares on or after March 20, 1998, your cost basis is the same as the actual price paid for the shares.