$ipv6-expand --address 2001:db8::1

IPv6 Address Expander

Enter any compressed IPv6 address to instantly expand it into the full 8-group hexadecimal format with all leading zeros restored. See the complete 128-bit representation of your address — useful for binary analysis, ACL pattern matching, and verifying IPv6 address notation accuracy. Run the ipv6 address type identifier to determine whether an IPv6 address is globally routable or limited to link-local scope.

Input Compressed IPv6

Compressed IPv6 Address

Expanded Result

Full Expanded Format

Total Bits

128 bits (8 groups × 16 bits)

Common IPv6 Expansion Examples

Compressed	Full Expanded
::1	0000:0000:0000:0000:0000:0000:0000:0001
2001:db8::1	2001:0db8:0000:0000:0000:0000:0000:0001
fe80::1	fe80:0000:0000:0000:0000:0000:0000:0001
::	0000:0000:0000:0000:0000:0000:0000:0000

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