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A brief history of IPv6

1995 Basic specifications for IPv6 were established by IETF (one drafter was a NTT Research Institute staff member).
1996 NTT Research Institute began operating one of the world's largest IPv6 trial networks.
1997 CICNet and NWNet (current name Verio) began operating a major POP of 6bone.
1999 NTT Com became Japan's first commercial ISP to acquire sTLA.
1999 NTT Com began its OCN IPv6 Tunneling trial service with more than 200 subscribers of the OCN service.
2000 NTT MCL began offering the world's first commercial IPv6 IX service through its location in San Jose, U.S.A.
2000 NTT Europe began IPv6 trial service.
2001.4 NTT Com began IPv6 Gateway Service, an international transit service for ISPs and data centers.
2001.6 NTT Com launched OCN IPv6 Tunneling Service, the world's first full-scale commercial IPv6 service and available nationwide in Japan.
2001
Autumn
NTT Com became a key member in national projects such as the Home Appliance Trials in Japan and 6NET in the EU.
2001
Winter
NTT Com began IPv6 HOTSPOT trials for its WLAN trial service called HI-FIBE.
2002.6 INTERNET MULTIFEED began JPNAP6, a distributed Internet exchange service supporting IPv6.
2002.8 NTT Com began OCN ADSL Service IPv6 Dual (A), a broadband IPv6/IPv4 dual stack service with a Plug&Play function.
2002.8 NTT Com expanded its OCN IPv6 Tunneling Service to the initial introduction of IPv6 by ISP, CATV, universities and businesses.
2002.9 NTT MSC began IPv6 service in Malaysia.
2002.9 NTT Australia IP began IPv6 service in Australia.
2002.9 NTT Com won the "Best Technology Foresight" and "Best Carrier s\ AP Region" awards at World Communication Awards 2002, a first for Japan and the first double award for Asia.
2003.2 NTT Europe began IPv6 service in Europe.
2003.3 NTT Com extended OCN ADSL Service IPv6 Dual (A) to cover all of Japan.
2003.6 NTT Korea, NTT Taiwan, NTT com Asia, and NTT Australia began IPv6 Service.
2003.12 Verio Launches Commercial North American IPv6 Gateway Services.
2004.2 Commencement of pilot "Net-enabled Appliance Connection Service".
2004.4 NTT Communications Global IP Network started IPv6/IPv4 Dual Service.
2004.10 Official introduction of OCN ADSL Service IPv6 Dual (A).
2004.10 NTT Com won the "Best Global Carrier" and "Best New Service" awards at World Communication Awards 2004.
2005.2 Launching of OCN IPv4/IPv6 dual stack service for full-scale use of IPv6.
2005.10 NTT Com Wins World Communication Award for Best Customer Care
2005.11 NTT Com to Launch OCN IPv6 Service for Individual Users
2005.12 OCN IPv6 service for home use begins.
2006.6 IPv6 Multi-Policy Access Service Announced
2006.11 IPv6 Multicast Service to Provide Earthquake Early Warnings
2007.4 NTT Com to Begin New Machine-to-Machine Connectivity Trial
2007.4 NTT Singapore to Launch Global Tier 1 IP Network Service in Singapore
2007.6 NTT Com to start Earthquake Early Warnings for Corporations
2007.8 IPv6 Multi-Policy VPN Service Announced
2007.9 NTT Com to Offer Japan's First Arcstar IP-VPN compatible IPv6 Service on Trial Basis
2008.2 NTT Com to Test Secure Remote Assistance System for IPv6

NTT Communications CSR Report

report 2005:
NTT Communications was the first Carrier based in Asia to be awarded "Best Global Carrier" at the World Communications Awards 2004.

report 2006:
Heading for a New Frontier Linking Electronic Tags and IPv6 Networks

report 2007:
Supporting Remote Learning Experiments Focused on the Global Environment