Tomohiro Fujisaki has been working for Nippon Telegraph and Telephone Corporation since 1990. He is now in the Network Technology Laboratories and studying Internet Architecture. He is looking after the implementation of IPv6 services at NTT. He is the Chair of the IPv6 deployment committee of Internet association in Japan, and co-chair of IPv4/IPv6 working groups and IPv6 promotion council in Japan. He is also an active member of the Address Supporting Organization Address Council from Asia Pacific region.