626-466 phone numbers

Numbers 626-466-0000 to 626-466-9999 are assigned to T-Mobile USA, Inc. (rate centre SIERRAMADR, CA, NANPA abbreviation). 4 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 626-466-1xxx, 626-466-4xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 626-466