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Private IP Address

These are the reserved IPv4 addresses used for private networks and are covered in RFC 1918 .

The IPv4 addresses that are reserved for this are:

Start Range End Range Prefix
10.0.0.0 10.255.255.255 (10/8 prefix)
172.16.0.0 172.31.255.255 (172.16/12 prefix)
192.168.0.0 192.168.255.255 (192.168/16 prefix)