925-543 phone numbers

Numbers 925-543-0000 to 925-543-9999 are assigned to Pacific Bell (rate centre BSHP RNCH, CA, NANPA abbreviation). 1 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 925-543-7xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 925-543