IPv6 notation tool

Expand IPv6 address 7d3b:a9:a0c3:0:a772:fd:a623:258

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 7d3b:a9:a0c3:0:a772:fd:a623:258

Expanded IPv6 address

7d3b:00a9:a0c3:0000:a772:00fd:a623:0258

Compressed IPv6

7d3b:a9:a0c3:0:a772:fd:a623:258

Expanded IPv6

7d3b:00a9:a0c3:0000:a772:00fd:a623:0258

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.

0111110100111011 0000000010101001 1010000011000011 0000000000000000 1010011101110010 0000000011111101 1010011000100011 0000001001011000

Compress this IPv6 address

Recent notation conversions

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