IPv4 Subnet Calculator

This calculator and tool allows you to type an IP address in and get information on a particular subnet. Enter an IP or range in CIDR notation.

Network: 132.128.4.72/30
Addresses: 4 (2²)
First IP: 132.128.4.72 (72.4.128.132.in-addr.arpa)
Last IP: 132.128.4.75 (75.4.128.132.in-addr.arpa)

/8 Operated By: ARIN

Related Networks

132.0.0.0/8
131.0.0.0/8
133.0.0.0/8
132.128.4.72/29
132.128.4.72/32
132.128.4.75/32

You can also use some of the other examples such as:

0.0.0.0/0
1.0.0.0/8
127.0.0.1
30.0.0.0/8
192.168.0.0/16