Constantly calling.  Its always a fax machine

is a fax "transfer' number telemarker- but a fax machine.  How do I block this number?

i had a lady calling twice from this number. she claims to be working with some company that is  part of rogers communication. asks for info like date of birth etc. this looks like some faud company to me. be aware.

i just want to know that whose No is that?

Repeated calls.  Never a message.