What is private IP address?

September 8th, 2007 by uCertify Leave a reply »

Private IP addresses are basically used for the host computers that require IP connectivity, but that do not need to be visible on the public network. The IANA has reserved a certain numbers of IP addresses for this purpose. Private addresses are not routable to the public network. Therefore, the computers with private IP address connect to the Internet by a proxy server or an other Network Address Translation (NAT) device.

Private IP Address Ranges

Class From To
Class ‘A’ 10.0.0.0 10.255.255.254
Class ‘B’ 172.16.0.0 172.31.255.254
Class ‘C’ 192.168.0.0 192.168.255.254
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