Category
IPv6
Expand, compress, subnet, and classify IPv6 addresses and prefixes.
IPv6 ⇄ IPv4 Embedded
Convert an IPv4 address to its IPv4-mapped, IPv4-compatible, 6to4, and NAT64 IPv6 forms, and extract IPv4 from an embedded IPv6 address.
IPv6 Address Type
Classify an IPv6 address against the IANA special-purpose and address-space registries: global unicast, link-local, ULA, multicast (with scope), documentation, IPv4-mapped, 6to4, NAT64, SRv6 SIDs, and more.
IPv6 CIDR Calculator
Work out the network address, first and last address, address count, type, and ip6.arpa zone for an IPv6 prefix.
IPv6 EUI-64 Converter
Build a Modified EUI-64 interface identifier from a MAC address (and vice versa), plus the resulting link-local or global address.
IPv6 Expand / Compress
Expand an IPv6 address to its full 8-group form or compress it to the RFC 5952 canonical form, with integer, hex, and binary views.
IPv6 Reverse DNS (ip6.arpa)
Convert an IPv6 address or prefix to its ip6.arpa reverse-DNS zone (or the exact set of zones a non-nibble prefix needs), and turn an ip6.arpa name back into an address.
IPv6 Solicited-Node Multicast
Compute the ff02::1:ffXX:XXXX solicited-node multicast address for an IPv6 address, and the 33:33 Ethernet multicast MAC it maps to.
IPv6 Subnet Splitter
Divide an IPv6 prefix into equal child prefixes by target prefix length or by number of subnets.