Just got a call - ignored it as I always do with unknown numbers and no voicemail left so came here and, of course, it's a spammer/scammer.  Added to phone's built-in call block list.

I received a call as well from this number & got the not in service response! What's going on? Is this a scam line?

No ID. Reverse look up says there's no such number in use.

just got a call from this number, when I called back I get a recording saying number not in use.