What are Private IP Addresses and what are their ranges?

Some IP Address ranges are meant only for private networks. These are never used or routed on the internet... these IP Address are called as Private IP address. 

Here are the IP ranges which are private:


10.0.0.0 - 10.255.255.255
172.16.0.0 - 172.31.255.255
192.168.0.0 - 192.168.255.255

There is one special IP address which is called the localhost IP Address. This IP address is defined as 127.0.0.1. Whether or not your computer have a network decide, your system will always have this IP address assigned to it.