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: 123.127.255.124/30
Addresses: 4 (2²)
First IP: 123.127.255.124 (124.255.127.123.in-addr.arpa)
Last IP: 123.127.255.127 (127.255.127.123.in-addr.arpa)

/8 Operated By: APNIC

Related Networks

123.0.0.0/8
122.0.0.0/8
124.0.0.0/8
123.127.255.120/29
123.127.255.124/32
123.127.255.127/32

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