EXHIBIT 12 PACIFIC BELL AND SUBSIDIARIES COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES Dollars in Millions SIX MONTHS ENDED JUNE 30, YEAR ENDED DECEMBER 31, ---------------- ----------------------------------------- 1998 1997 1997 1996 1995 1994 1993 ---------------- ----------------------------------------- Income (Loss) Before Income Taxes, Extraordinary Loss and Cumulative Effect of Accounting Changes $ 941 $ (479) $ 34 $1,567 $1,161 $1,276 $ (54) Add: Interest Expense 216 226 460 379 420 437 429 1/3 Rental Expense 19 29 41 47 29 22 23 ------- ------- ------ ------ ------- ------- ------- Adjusted Earnings $1,176 $ (224) 535 $1,993 $1,610 $1,735 $ 398 ======= ======= ====== ====== ======= ======= ======= Total Interest Charges $ 233 $ 246 497 412 $ 420 $ 437 $ 429 1/3 Rental Expense 19 29 41 47 29 22 23 ------- ------- ------ ------ ------- ------- ------- Adjusted Fixed Charges $ 252 $ 275 $ 538 $ 459 $ 449 $ 459 $ 452 ======= ======= ====== ====== ======= ======= ======= Ratio of Earnings to Fixed Charges 4.67 (0.81)* 0.99** 4.34 3.59 3.78 0.88*** <FN> * As defined within the computation of earnings to fixed charges, earnings are $499 less than fixed charges for the first six months of 1997. See Management's Discussion and Analysis of Results of Operations in Pacific Bell's 1997 Annual Report on Form 10-K for a discussion of merger-related and other unusual items that reduced earnings for 1997. ** As defined within the computation of earnings to fixed charges, earnings are $3 less than fixed charges for 1997. See Management's Discussion and Analysis of Results of Operations in Pacific Bell's 1997 Annual Report on Form 10-K for a discussion of merger-related and other unusual items that reduced earnings for 1997. *** As defined within the computation of earnings to fixed charges, earnings are $54 less than fixed charges for 1993. See Management's Discussion and Analysis of Results of Operations - Other Business Matters in Pacific Bell's 1997 Annual Report on Form 10-K for a discussion of the restructuring charge which reduced earnings for 1993. </FN>