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: 104.0.0.0/5
Addresses: 134217728 (2²⁷)
First IP: 104.0.0.0 (0.0.0.104.in-addr.arpa)
Last IP: 111.255.255.255 (255.255.255.111.in-addr.arpa)

/8 Operated By: ARIN

Related Networks

104.0.0.0/8
103.0.0.0/8
105.0.0.0/8
96.0.0.0/4
104.0.0.0/32
111.255.255.255/32

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