Did recognize number, did not answer, no message left. Rang back recorded message " The number you have dialed in not in service at this time. Blocked.

Have received numous calls from number 7047 and various combinations of final four digits. Keep blocking but they will try again with another variation. I believe it is an energy company trying to get you to sign up. If number begins with 7047 let it ring and they will hang up. No message left.

It rang twice then hung up. Left no message, assume spam or scam