Private LAN IP addresses

From Noah.org
Revision as of 12:56, 12 October 2012 by Root (talk | contribs)
Jump to navigationJump to search


These IP addresses are reserved for private networks (sometimes called localnet). These are routable only in a LAN; WAN gateways will not route the following IP addresses. The 192.168.0.0/16 range is the most familiar. Often forgotten is the 172.16.0.0/12 range.

IANA Reserved Private Network Ranges Start of range End of range Total addresses
24-bit Block (/8, 1 x A) 10.0.0.0 10.255.255.255 16777216
20-bit Block (/12, 16 x B) 172.16.0.0 172.31.255.255 1048576
16-bit Block (/16, 256 x C) 192.168.0.0 192.168.255.255 65536
Link-local Zeroconf (/16 minus the first and last /24 ranges) 169.254.1.0 169.254.254.255 65026