website - what is the range of public ip address ipv4? -


i looping through ips on internet.i inserting ips in database.

i have looped 0.0.0.0 255.255.255.255 as know of ips private.

so want know range of public ip addresses on websites running.

let me know if thinking wrong. thanks.

private ip addresses are:

10.x.x.x

and

172.16.x.x 172.31.x.x

and

192.168.x.x

also refer to: http://tools.ietf.org/html/rfc5735

everything else can public ip address.

basically 2^32 - ranges above. quite lot. less 2^128 used ipv6

there other ip addresses cannot used. broadcasts , multicast , possibly other uses. don't forget not available public ip addresses may in use @ moment in time. in days of internet many not be.


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