925-319 phone numbers

Numbers 925-319-0000 to 925-319-9999 are assigned to T-Mobile USA, Inc. in Sunol, CA. 5 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 925-319-2xxx, 925-319-9xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 925-319