Short Form2001::
Long Form - Hexadecimal2001:0000:0000:0000:0000:0000:0000:0000
Long Form - Binary2001:0000:0000:0000:0000:0000:0000:0000
In base1042540488161975842760550356425300246528
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, ^ ]

  
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