My call blocker automatically blocked this number.  That tells me that it's a ROBO call as my call blocking machine will automatically block ROBO calls.  A policeman in the fraud department in the town I live in said that if you get calls with unknown name, not available, a call that says "private caller" & doesn't have a phone number, etc., these are definitely not a good person calling & is most definitely a scammer crook of some kind.
I got a call about 2 weeks ago that had just the letter "P" without a name or number. I tried to block it but my call blocker has to have a number in order to block it.  But I think this call was a ROBO caller as when it came in, it only rang once.  My call blocker even though it blocks calls, it does ring once if it is a number I have blocked to let me know I don't have to go to my phone & answer it.  My good calls that I accept, they will ring through so I know it's a call I need to answer.

This robo caller has called as many as 5 times each day for a week. Leaves no message and sometimes calls back immediately. They are being a royal hemarroid

Thanks for posting guys. IDNA because I don't know any one from Boston, had to be telemarketers, survey, Bill collector, or an attorney. He would be suing me, or I had an incredibly wealthy unknown uncle giving me scads of money.

I had 4 calls yesterday and have had 4 calls already today (2:00 CST) from this number with no response after answering the call. I requested the number be blocked with my provider, Suddenlink, but that doesn't seem to be working. What should I do now to stop these annoying calls?