09-03-2010, 03:05 AM
They just have relations with ISP.
When they receive an IP address, they have a pre database containing all the ip address and matching information with them.
So when some one lookups for an ip, then search for their db and get you the result.
There DB is updated every time.
When they receive an IP address, they have a pre database containing all the ip address and matching information with them.
So when some one lookups for an ip, then search for their db and get you the result.
There DB is updated every time.