IPv6 notation tool

Expand IPv6 address fd9c:518f:fe09:0:c4b5:4435:fc8e:7701

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 fd9c:518f:fe09:0:c4b5:4435:fc8e:7701

Expanded IPv6 address

fd9c:518f:fe09:0000:c4b5:4435:fc8e:7701

Compressed IPv6

fd9c:518f:fe09:0:c4b5:4435:fc8e:7701

Expanded IPv6

fd9c:518f:fe09:0000:c4b5:4435:fc8e:7701

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.

1111110110011100 0101000110001111 1111111000001001 0000000000000000 1100010010110101 0100010000110101 1111110010001110 0111011100000001

Compress this IPv6 address

Recent notation conversions

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