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: 211.0.1.2/31
Addresses: 2 (2¹)
First IP: 211.0.1.2 (2.1.0.211.in-addr.arpa)
Last IP: 211.0.1.3 (3.1.0.211.in-addr.arpa)

/8 Operated By: APNIC

Related Networks

211.0.0.0/8
210.0.0.0/8
212.0.0.0/8
211.0.1.0/30
211.0.1.2/32
211.0.1.3/32

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