I called this number back and a voice told me to press1 then enter card number. I don't know who in Lowell,MA would call me. They didn't tell me want card number to enter. I think this is a SCAM. Please pass this info. on.
3-17-14 - This was a recorded call from Comcast telling me I need to upgrade some Hardware. They call me about this from time to time so this is likely a legitimate number.