IPv4 subnet calculator

Parse your IPv4 CIDR blocks and get all the info you need about your subnet.

An IPv4 address with or without mask

Netmask

192.168.0.0/24

Network address

192.168.0.0

Network mask

255.255.255.0

Network mask in binary

11111111.11111111.11111111.00000000

CIDR notation

/24

Wildcard mask

0.0.0.255

Network size

256

First address

192.168.0.1

Last address

192.168.0.254

Broadcast address

192.168.0.255

IP class