650-550 phone numbers

Numbers 650-550-0000 to 650-550-9999 are assigned to Pacific Bell (rate centre SNFC JUNPR, CA, NANPA abbreviation). 8 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 650-550-6xxx — calls from these use spoofed caller IDs.

Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.

Reported numbers in 650-550