Canadial Know Who Called
← Area code 562

562-378 phone numbers

Numbers 562-378-0000 to 562-378-9999 are assigned to T-Mobile USA, Inc. in Whittier, CA. 8 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 562-378