LONDON -- Standard&Poor's CreditWire 11/7/95 -- Standard&Poor's assigns its triple-`A' senior debt rating to Nippon Telegraph&Telephone Corp.'s (NTT) US$300 million 6.0% Eurobond due Dec. 1, 2000. The rating reflects NTT's dominant position and important role in the Japanese telecommunications market, and strong cashflow and financial profile among major international peers. Despite increased penetration by the New Common Carriers (NCCs), NTT still maintains over 90% share of the domestic telephone market. NTT recorded a 22% increase in consolidated operating income at fiscal year ended March 1995, primarily due to increased revenues and profits from subsidiaries in the rapidly growing Japanese cellular phone market. Profitability is still low compared with historical levels, as a result of