Called our home phone 8/19/16, couldn't answer in time and they left no message. Tried calling the number a few days later and only got a loop recording saying '...if you want to be removed from our call list, press 1...'
If as others've said, this is a scam posing as National Grid, then your time is probably better spent calling an actual National Grid service line and reporting it to them. I've little doubt they'll put a stop to it somehow or other.
I see the most recent post here is 7 months old? Guess what folks... these scumbags are still alive & well but now they've stooped low enough to leave an URGENT message for me to call the number back with my electric bill handy.
Called left message to talk with the owner of the National Grid bill about our heat.We deleted the message and number! Scammers trying to get your information.
I have had several calls from this number with no message, now I am getting a call from a 518 number from a woman who says she is calling about my Nat'l Grid bill and to call her back with a copy of the bill. These people are definitely persistent and don't give up easily. I don't answer any of them, or call back!