Have not been able to determine who is using this number, no response when answer and when call back it simply says "call can not be completed". It has been blocked from phone. Recommend if you get live person, do not respond and simply hang up, clearly some kind of scam.
I suggest you block this #. I just received a call from this unknown #. On call back, the message was ..."The number you dialed is not in service." Obviously a spoofed #.