← Area code 408
408-417 phone numbers
Numbers 408-417-0000 to 408-417-9999 are assigned to New Cingular Wireless PCS, LLC (rate centre SNJS WEST, CA, NANPA abbreviation). 8 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.