Internet Assigned Numbers Authority IANA-V6-RESERVE (NET6-2001-1) 2001:: - 2001:1FF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF Internet Assigned Numbers Authority IANA-TEREDO (NET6-2001-2) 2001:: - 2001:0:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF