I always start with ARIN like Seth just said.
If ARIN doesnt have the information, it will tell you which
WHOIS server in the world have the information.
The others wont do that.
You may see some of the avaiable registries on IANA
http://www.iana.org/ipaddress/ip-addresses.htm
You will see more like RIPE, APNIC, KRNIC, JPNIC,
LACNIC, BRNIC, ...
Ciao
---------------------------------------------------------------
Maxime Ducharme
Administrateur reseau, Programmeur
"Francesco Sblendorio" <(E-Mail Removed)> wrote in message
news:be11d5$h7v$(E-Mail Removed)...
> Hello dudes.
> I've to use whois database to know to which continent an IP address
belongs.
> If I perform a whois search on RIPE database for an USA IP address, the
> search will fail.
>
> So I thought to perform an exhaustive search on the 4 Whois server.
>
> Is there a more specific way to do this?
>
> Thanks in advance.