← Area code 424
424-580 phone numbers
Numbers 424-580-0000 to 424-580-9999 are assigned to Onvoy, LLC (rate centre SAN PEDRO, CA, NANPA abbreviation).
Not assigned to any carrier: 424-580-3xxx, 424-580-4xxx, 424-580-5xxx, 424-580-6xxx, 424-580-7xxx, 424-580-8xxx, 424-580-9xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.