First time this number has called me, but from reading the posts I'm assuming it won't be the last.

I was able to do a WHOIS search on the website, and I found an administrative contact number, and address.

Administrative, Technical Contact:
Michael, E  [email protected]
LeadGen Media
7378 West Atlantic Blvd
Margate, Fl  33063
US
954-341-9918

I would assume, as they are the parent company that any people wanting off the list may call in and request it.

Hope it helps.