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<Topics> NTT Com Increases Japan-U.S. Backbone Speed to 300 Gbps

TOKYO, JAPAN - NTT Communications (NTT Com) announced today that it has significantly increased the data transmission speed of its Global IP Network between the United States and Japan to an industry-leading 300 Gbps, further enhancing the company’s leadership in Tier-1 transpacific IP connectivity.

Traffic between the U.S. and Japan accounts for some of the heaviest data volumes handled by carriers with global IP backbones. The trend is not expected to weaken, so the increased capacity of NTT Com’s U.S.-Japan route will enable the company to respond to growing demand for higher-capacity transmissions between the two countries.

The growing use of broadband and the rising popularity of video content led to a tripling of NTT Com’s bandwidth in 2009 compared to 1997, the year when the company launched a 45 Mbps service to support international Internet access for Japanese ISPs.

In 2000, the acquisition of Verio and its Tier-1 IP backbone enabled NTT Com to dramatically raise its U.S.-Japan bandwidth to 1 Gbps. A year later NTT Com introduced network service level agreements (SLA) to provide the highest level of service in the industry, and in the same year the company expanded its IP backbone to the Rep. of Korea, Hong Kong, Taiwan, Singapore and Australia. In 2002, the network’s data transmission speed was increased to 5 Gbps, or 100 times faster than the 1997 level.

In 2005, NTT Com became the first network provider to enhance its backbone by measuring network-latency variability with a jitter-type SLA (also introduced for IPv6 in July 2009). The NTT Com Global IP Network clearly proved its reliability in December 2006, when the network was rerouted with minimal delay following a destructive undersea earthquake off Taiwan. In 2008, the company introduced a traffic analysis system to help IP network operators monitor network traffic to detect and report traffic anomalies.

NTT Com looks forward to continually enhancing Global IP Network for high-quality, high-speed data transmission services offered 24/7 globally.

About NTT Communications Corporation

NTT Communications provides a broad range of global networks, management solutions and IT services to customers worldwide. The company is renowned for reliable, high-quality security, hosting, voice, data and IP services, as well as expertise in managed networks and leadership in IPv6 transit technology. NTT Communications’ extensive infrastructure includes Arcstar™ Global IP-VPN and Global e-VLAN, as well as a Tier-1 IP backbone reaching more than 150 countries in partnership with major Internet service providers, and secure data centers in Asia, North America and Europe. NTT Communications is the wholly-owned subsidiary of Nippon Telegraph and Telephone Corporation, one of the world’s largest telecoms with listings on the Tokyo, London and New York stock exchanges. Please visit www.ntt.com/index-e.html.

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