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← Area code 415

415-312 phone numbers

Numbers 415-312-0000 to 415-312-9999 are assigned to T-Mobile USA, Inc. (rate centre SNFC CNTRL, CA, NANPA abbreviation). 1 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 415-312