August 3, 2006 [Japanese GAAP] Outline of Non-consolidated Financial Results For the Three Months Ended June 30, 2006 Name of registrant: Nippon Telegraph and Telephone Corporation Code No.: 9432 Stock exchanges on which the Company's shares are listed: Tokyo, Osaka, Nagoya, Fukuoka and Sapporo Address of principal executive office: Tokyo, Japan (URL http://www.ntt.co.jp/ir/) Representative: Norio Wada, President Contact: Shigehito Katsuki, Head of IR, Department 4/ TEL (03) 5205-5581 1. Notes Related to the Preparation of the Quarterly Non-consolidated Financial Statements (1) Adoption of simplified accounting method: Yes Income taxes are calculated using an estimated annual income tax rate based on the statutory tax rate. (2) Change in accounting method from the most recent fiscal year: No 2. Non-consolidated Financial Results for the Three Months Ended June 30, 2006 (April 1, 2006 - June 30, 2006) Amounts are rounded off per 1 million yen throughout this report. (1) Non-consolidated Results of Operations (2) Non-consolidated Financial Position 3. Non-consolidated Financial Results Forecasts for the Year Ending March 31, 2007 (April 1, 2006 - March 31, 2007) Note: Forecasts for the fiscal year ending March 31, 2007 have never been changed from those announced on May 12, 2006. With regard to the assumptions and other related matters concerning the above estimated results, please refer to here. *Non-consolidated financial statements are unaudited. Copyright (c) 2006 Nippon telegraph and telephone corporation