Who called from 2073238713

I just received a call 10/25/2012 at 11:30 a.m.  No message left.

Just got a call 10/25/12 at 1:30 est. No message left.  Look up said Camden ME.

Just got a call 10/25/12 @ 2:14 pm est. No message left, definitely came from Maine. Called it back, and got a message from Verizon wireless saying I have called a number that has been changed or disconnected. So it's only a one way number. Probably bill collector or Telemarketer.

I just recieved a call from that same number.
Caller ID says from Belfast ME.
When I called it back the recording said this was a none working number.

no message.