172.21.72.100

172.21.72.100 is a private IP address which is reserved for private networks (such as Private LANs, Internal Networks etc.). Therefore, 172.21.72.100 has no physical location assigned.

Private IP: 172.21.72.100

172.21.72.100 is part of a private ip range following the standards set by RFC 1918. Reserved IP like 172.21.72.100 cannot be used to browse internet. A private network must use a public IP gateway or proxy to connect internet.

Router Address: 172.21.72.100

If 172.21.72.100 is your router login address, you can type http://172.21.72.100 in your browser's address bar and login by entering commonly used username: admin and password: admin as credentials. Read more about commonly used Router IPs and passwords.