IPv6 subnet calculator
Calculate the network address, final address, mask, and exact address capacity of any IPv6 CIDR prefix.
CIDR calculation
The prefix identifies a network with 6 host bits. Every address from the first address through the last address belongs to this range.
CIDR prefix
2a00:8a00:4000:382:4::3200/122
Network mask
ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffc0
Prefix length
/122
Host bits
6
First address
2a00:8a00:4000:382:4::3200
Last address
2a00:8a00:4000:382:4::323f
Total addresses
64
Total addresses (human readable)
2^6 addresses (64)
How this range is calculated
Network address
CIDR notation describes a network, not a single host. If an address with host bits set is entered, this calculator normalizes it to the network base before calculating the range.
Expanded network address
2a00:8a00:4000:0382:0004:0000:0000:3200
Recent network calculations
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