← Area code 415
415-544 phone numbers
Numbers 415-544-0000 to 415-544-9999 are assigned to Pacific Bell (rate centre SNFC CNTRL, CA, NANPA abbreviation). 2 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.