Exchange · Tombstone, AZ
(520) 506-xxxx
Every number from 520-506-0000 to 520-506-9999. NANPA records the exchange as assigned to Onvoy (Sinch) for Tombstone, AZ in 2020. Robocall and scam operations often use many numbers from one exchange, so if one number here is a shady call, its neighbors deserve a second look.
Reported numbers starting 520-506
About the 520-506 exchange
520-506 is an exchange (the first six digits of a phone number) in area code 520, which covers Arizona. NANPA, which runs the North American Numbering Plan, assigned it to Onvoy (Sinch) for the Tombstone, AZ rate center in 2020. Numbers from this carrier are usually VoIP / internet phone lines.
People keep their number when they move or switch carrier, so this is where the number was first assigned, not where the caller is today. Local time for 520-506 numbers is usually Mountain time. Scammers can also fake (spoof) any number, so a call that shows a 520-506 number may not come from Onvoy (Sinch) at all.