Volleynerd Knowledge Base

Wednesday, December 11, 2002


RFC 1918 - Private Address Space
Non-routable addresses, used in home networks, etc.
keywords: networking, private, routable

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)


Class A B C IP Address Ranges

Class Format 1st Octet Range Max # IPs
A N.H.H.H 0 - 126 16,777,214
B N.N.H.H 128 - 191 65,534
C N.N.N.H 192 - 223 254



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