IPv6 subnet calculator

IPv6 CIDR to range calculator

Calculate the network address, final address, mask, and exact address capacity of any IPv6 CIDR prefix.

Example: 2606:4700::/32

Host bits are normalized to the network address before the range is calculated.

Enter a valid IPv6 CIDR prefix, for example 2001:db8::/48.

Learn how IPv6 CIDR notation and subnet ranges work