constant calls, no message left

Didn't answer and the caller hung up after the first few words of my answering machine message.  No company name, just the town as shown below.

North American Power, telemarketing, wants you to switch from National Grid.

By the way, North American Power sells electricity and gas, as does National Grid (I realize I didn't put that in my above post, and should have).  For anyone who is considering switching to them, BUYER BEWARE!  I found this 2011 article on the company from Baltimore, MD:

http://articles.baltimoresun.com/2011-02-06/b ... -bge-households

This phone number is a telemarketer for North American Power. They are new to the RI area (which is where I live, and they have been calling for days), and are promising 25% off the current rates of National Grid. They also call from the phone number 401-223-4212. I asked them both times (on each incoming phone number) to put me on their DNC list...we will see if they abide.

caller did not leave message