Who called from 5203389491

I've received 3 calls from this number today. Caller ID gives Tucson, AZ. I didn't answer; they left no voice mail.

same here = keep getting calls from all over AZ.  sometimes they say something, but this one just disconnected, blocked it.

Has called a few times. No one on the other end

Same here. This is the second call from an Az number, in two days.

I've received 2 calls per day for 2 days in a row. No message left.