Who called from 3135574341

I keep getting calls from Detroit. I don't know anyone in Detroit so I don't answer. They use this number and  a couple of others. (313) 263-5109 is another number they use. I don't know who they are but they are persistent. They call every day.

Called at 9:15 AM today. I didn't answer and they didn't leave a message. Blocked the number. Caller ID says Detroit, MI.

Calls from 313-263-5095, 313-263-5109 and 313-557-4341 all Detroit area code..  Again this morning, never leaves any message.  Has to be a scam call.

Phone was quiet as I said, "Hello, hello, hello".  Then I heard the typical tone when a call disconnects.

I've since blocked the number.