$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.

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

Related Network Tools

Tool	Tool
Shorten IPv6 Address	Plan IPv6 Networks
IPv6 Format Checker	IPv6 rDNS Tool
Decimal to Binary IP	IPv4 to IPv6 Converter

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