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: 58.128.2.240/31
Addresses: 2 (2¹)
First IP: 58.128.2.240 (240.2.128.58.in-addr.arpa)
Last IP: 58.128.2.241 (241.2.128.58.in-addr.arpa)

/8 Operated By: APNIC

Related Networks

58.0.0.0/8
57.0.0.0/8
59.0.0.0/8
58.128.2.240/30
58.128.2.240/32
58.128.2.241/32

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