Canadial Know Who Called
← Area code 442

442-280 phone numbers

Numbers 442-280-0000 to 442-280-9999 are assigned to T-Mobile USA, Inc. in Barstow, CA. 7 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 442-280