Obviously a bogus prefix, nothing starts with a "1". I get calls like this all the time on my landline, but for the first time I got it on my cell phone. I was on another call when it "beeped" in, and I ignored it. Also got a voicemail with a hang up call probably from the same caller or similar.
Another scammer I'm sure. Legit companies show their real number and/or name.
My number is also on the Do Not Call list, which seems pointless when they use phony Caller ID or the calls are coming from overseas.
A lady keeps calling my cell phone asking for someone named Simon. I have told her twice already that no one by that name owns the phone and I do not know anyone by that name. I have also asked her to stop calling.