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: 194.0.3.18/31
Addresses: 2 (2¹)
First IP: 194.0.3.18 (18.3.0.194.in-addr.arpa)
Last IP: 194.0.3.19 (19.3.0.194.in-addr.arpa)

/8 Operated By: RIPE NCC

Related Networks

194.0.0.0/8
193.0.0.0/8
195.0.0.0/8
194.0.3.16/30
194.0.3.18/32
194.0.3.19/32

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