Domain WHOIS research
 

I know about http://www.whois.sc/ service to find every single domain hosted at an IP but how do I search and find every single domain that contains a specific address in the WHOIS? Any paid service out there?

try www.dnsstuff.com

Didn't find what I was looking for e.g. I want to find all the domains with XYZ as the telephone contact address in the WHOIS.

whois.sc offers that as a paid service

but they cant match stuff like that