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PrismKit

IPv6 Address Converter

Local

Rewrite any IPv6 address in compressed, expanded, binary, hex, decimal and reverse-DNS form, and see what kind of address it is.

IPv4 Range Expander

Enter the first and last address of a range and get the smallest CIDR block that covers it.

IPv6 Subnet Calculator

Get the first and last address and size of an IPv6 prefix, and split it into smaller subnets.