IPv4 addresses and subnets calculation

IPv4 addresses and subnets

ip address:

network mask (cidr):

network address:

ip class:

broadcast address:

total number of addresses in network:

of which usable:

first usable ip address:

last usable ip address:

Calculating the size of the address space and the range of IPv4 addresses on the network.

10 years

251 countries

614k users

3370k calculations