Who called from 7814652480

Call came through as "unknown name."  Call came to my Mom's phone and when I answered and asked who was calling, they asked for my Mom.  I asked again who was calling and they hung up.

I called the number back and got an answering machine, but the message didn't give a name or company.

I keep getting calls from this number too. They also hung up from me when I asked who it was. All I know is that this is a landline from Needham.