← Area code 435
435-308 phone numbers
Numbers 435-308-0000 to 435-308-9999 are assigned to New Cingular Wireless PCS, LLC (rate centre MONUMNTVLY, UT, NANPA abbreviation).
Not assigned to any carrier: 435-308-0xxx, 435-308-1xxx, 435-308-2xxx, 435-308-3xxx, 435-308-4xxx, 435-308-5xxx, 435-308-6xxx, 435-308-7xxx, 435-308-8xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.