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Private IP Address

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The Internet Assigned Numbers Authority (IANA) have reserved the following IPv4 ranges for internal, private use.

 

IP Address Range Subnet Number of addresses
10.0.0.0-10.255.255.255 255.255.255.0 16,777,216
172.16.0.0 – 172.31.255.255 255.240.0.0 1,048,476
192.168.0.0 – 192.168.255.255 255.255.0.0 65,536

 

The IPv6 equivalent has an address block of fc00::/7

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