435-280 phone numbers

Numbers 435-280-0000 to 435-280-9999 are assigned to Onvoy, LLC in Mexican Hat, UT. 1 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 435-280-1xxx, 435-280-3xxx, 435-280-5xxx, 435-280-6xxx, 435-280-7xxx, 435-280-9xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 435-280