Numbers with this prefix were first introduced in 2012.While 5202770522 was originally issued with the info above, the owner of the phone number (520) 277-0522 may have transferred it through a process called porting.
Caller name: IMC
Caller type: Unknown
They have been calling me almost daily for months from eight different numbers:480-630-6647, 480-630-7445, 520-428-1773, 480-630-5494,520-277-0522, 520-277-1121, 480-630-8321, 520-263-0935.
They never leave a message. I picked up once and just listened to confirm it was a live person calling.