Forums Scripts & Popups ip/host search snippet needed

I need a simple snippet to search a net for an ip and/or host that would return with a username..thx I'm an ircop with full access.

Depending what IRCD/services you use but have you tried /who ipnumber or /who hostname ?
Just a thought

Firestarter

I tried that, but always get 0 results The net is UltimateIRCD, which I believe is a slight mod of anope

try /who +i IP and /who +h HOSTNAME