Have been getting calls from various numbers (this included) and they all must have to do with the fact the car rental place took my phone number last month.  These idiots better stop calling my CELL PHONE selling crap, I am not interested.

Got a call and there was a woman but I couldn't quite hear, they asked for someone, and I said, "Who" and they hung up. Called back and go the "corporate office" number others have mentioned.

Spam number with no one on the other end. When you call those numbers back, they all go to the same voicemail.

Those calls are coming from the same provider, VeriSign. NOTE: VeriSign said they are not the spammer and don't make outgoing calls, but the lines go back to them as the provider, like Verizon is a provider, not the telemarketer. VeriSign isn't a phone provider, they are internet security, but some telemarketer is using them so they can't be found.  Call VeriSing and report the numbers.  More people that do, the more they might look into it and stop the telemarketer who is doing it.  I gave seven different numbers to them, including this one.