Canadial Know Who Called
← Area code 520

520-456 phone numbers

Numbers 520-456-0000 to 520-456-9999 are assigned to Qwest Corporation (rate centre SIERRAVIST, AZ, NANPA abbreviation). 4 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.

Reported numbers in 520-456