IPv6 notation tool

Expand IPv6 address 240f:78:5a1:1:d56d:2d9f:96af:275e

Write any valid IPv6 address in its complete eight-group form for subnetting, binary analysis, logs, and documentation.

Example: 2001:db8::1

Expansion result

Full IPv6 notation for 240f:78:5a1:1:d56d:2d9f:96af:275e

Expanded IPv6 address

240f:0078:05a1:0001:d56d:2d9f:96af:275e

Compressed IPv6

240f:78:5a1:1:d56d:2d9f:96af:275e

Expanded IPv6

240f:0078:05a1:0001:d56d:2d9f:96af:275e

IPv6 groups

8 groups of 4 hexadecimal digits

Address size

128 bits

Expansion rules

1An IPv6 address always has eight 16-bit hexadecimal groups.
2Each visible group is left-padded with zeroes until it contains four digits.
3If :: appears, it is replaced with the number of 0000 groups needed to reach eight groups.

Binary representation

Each block below represents one 16-bit IPv6 group. This form is useful when comparing prefix bits or troubleshooting subnet boundaries.

0010010000001111 0000000001111000 0000010110100001 0000000000000001 1101010101101101 0010110110011111 1001011010101111 0010011101011110

Compress this IPv6 address

Recent notation conversions

Open recent IPv6 addresses to inspect their complete eight-group and binary forms.