CIDR block	2001::/32   !cidr !bgp
2001:: is contained in the 2001::/32 Special Purpose Address Block. 2001::/32 - TEREDO 2001::/32 was allocated on January of 2006 Addresses in 2001::/32 may be used as the source address of an IP datagram that transits two devices. Addresses in 2001::/32 may be used as the destination address of an IP datagram that transits two devices. Addresses in 2001::/32 are forwardable. A router may forward an IP datagram to Addresses in 2001::/32 between external interfaces. [ RFC4380, ^ ] [ RFC8190, ^ ]
Number of IP addresses in the block	79228162514264337593543950336 (7.922816e+28)
Netmask	ffff:ffff:0000:0000:0000:0000:0000:0000
Range [First - Last]	2001:: - 2001:0000:ffff:ffff:ffff:ffff:ffff:ffff
Last Address long form	2001:0000:ffff:ffff:ffff:ffff:ffff:ffff
Last Address short form	2001:0:ffff:ffff:ffff:ffff:ffff:ffff   !ip6 !rdap !whois !ptr !dnstr !tr !scan !g
Network/First Address long form	2001:0000:0000:0000:0000:0000:0000:0000
Network/First Address short form	2001::   !ip6 !rdap !whois !ptr !dnstr !tr !scan !g
!g 2001::/32

  
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