EXHIBIT 12 1993 Form 10-K The Southern New England Telephone Company Computation of Ratio of Earnings to Fixed Charges (dollars in millions) Income from continuing operations before income taxes, extraordinary charge and accounting changes $(74.9) Add: Interest on indebtedness 66.0 Portion of rents representative of the interest factor 10.1 Earnings before fixed charges, income taxes and extraordinary charge (1) $ 1.2 Fixed charges Interest on indebtedness $ 66.0 Potion of rents representative of the interest factor 10.1 Fixed charges $ 76.1 Ratio of earnings to fixed charges [(1) divided by (2)] .02