Hi Is this up to the registrar, if I provide them with new information, how long will it take for the who.is address to change?
It depends on the registrar, but typically a WHOIS change will take about 24 hours to propagate fully across the web. Nameserver changes can take a little longer. GoDaddy's a bit rubbish when it comes to this sort of thing though - and I've known them to take up to 96 hours to make and domain information changes active... Hope this helps! Paul
From reading your post I am not sure if you are referring to IP address or physical adderss (street or PO box, City, State) info.