← Area code 424
424-581 phone numbers
Numbers 424-581-0000 to 424-581-9999 are assigned to New Cingular Wireless PCS, LLC (rate centre SNMN SNMN, CA, NANPA abbreviation). 7 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.