IPv6 notation tool

Expand IPv6 address 85fa:99f0:d4c5:8bc:f6f:4df:2804:283d

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 85fa:99f0:d4c5:8bc:f6f:4df:2804:283d

Expanded IPv6 address

85fa:99f0:d4c5:08bc:0f6f:04df:2804:283d

Compressed IPv6

85fa:99f0:d4c5:8bc:f6f:4df:2804:283d

Expanded IPv6

85fa:99f0:d4c5:08bc:0f6f:04df:2804:283d

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.

1000010111111010 1001100111110000 1101010011000101 0000100010111100 0000111101101111 0000010011011111 0010100000000100 0010100000111101

Compress this IPv6 address

Recent notation conversions

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