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About Us

Notice

NTT Communications Corporation

June 10, 2004

NTT Com To Enhance Reliability of Telecom Infrastructure

NTT Com plans to enhance its telecom infrastructure reliability by diversifying the UPS and power distribution frame in all nodes. This enhancement will enable us to provide an uninterrupted service even in the unlikely event that a problem similar to the service disruption of May 31, 2004 should re-occur.

Construction will be conducted as soon as possible, and we will do our best to ensure a smooth transition. Construction in Otemachi will be completed by June 22, 2004.

Our overall aim in taking the above measures is to provide seamless, high security networks that customers can rely upon with confidence.

Commercial power to the Otemachi power facility has been provided from a dual supply route, as well as our own generator and battery system. In addition, we also maintain a diversified backbone network. Using this backup power supply system and backbone network, as well as the bypass function of the UPS, we have been able to provide our data services without prior incident - even during periods of blackout.

We sincerely apologize for any inconvenience that was caused by the incident of disruption to our service.

Sincerely,

NTT Communications Corporation

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