Called our phone 3 times this week so far. My research shows the owner as a phone Hobbyist (whatever that is). No messages and the identifier that comes up on caller ID from what I was able to find out is the cell tower being used. I think it's some low life spoofer who has too much time on their hands.

Has been calling our home phone every day for the last week.  Never answer, don't know who it is...