Bell Atlantic Corp’s Bell Atlantic Financial Services Inc has had the ratings on its senior debt upgraded by Standard & Poor’s Corp, to A-plus from single-A and its commercial paper affirmed at A-1. The agency also affirmed its double-A-plus ratings on the senior unsecured debt of units Bell Atlantic-New Jersey Inc and Bell Atlantic-Delaware Inc.Parent Bell Atlantic Corp’s implied senior debt rating is A-plus, and about $10,000m of debt is covered all told. The three Bell Atlantic units are no longer under review, where they were placed following Bell Atlantic’s announcement that it had ended plans to acquire