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: 125.128.0.0/23
Addresses: 512 (2⁹)
First IP: 125.128.0.0 (0.0.128.125.in-addr.arpa)
Last IP: 125.128.1.255 (255.1.128.125.in-addr.arpa)

/8 Operated By: APNIC

Related Networks

125.0.0.0/8
124.0.0.0/8
126.0.0.0/8
125.128.0.0/22
125.128.0.0/32
125.128.1.255/32

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