We have recently received calls in regards to a scam involving National Grid. This can be very deceiving as the caller ID will display National Grid with the local number. National Grid representatives who do call you will already have your account information and will never ask you to provide any personal information. The following link offers tips to protect yourself from being scammed.
https://www.nationalgridus.com/News/2020/08/National-Grid-Alerts-Customers-of-Latest-Phone-Scam,-Offers-Tips-to-Protect-Themselves-/