408-300 phone numbers

Numbers 408-300-0000 to 408-300-9999 are assigned to Comcast Phone of California, LLC (rate centre SNJS SOUTH, 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.

Reported numbers in 408-300