Really! A number that starts with a 1? I guess it is some sort of stupidity test. How about a number that starts with 0. I get those too. They are too dumb to spoof feasible numbers. Script kiddies.
Received call from (310) 116-9750. A little silence then someone came on saying he was John, a private contractor working in Lancaster and wanted to know if I needed any work done on my home. I reported the call to National Do Not Call Registry https://complaints.donotcall.gov/complaint/complaintcheck.aspx