Canadial Know Who Called
← Area code 301

301-442 phone numbers

Numbers 301-442-0000 to 301-442-9999 are assigned to Omnipoint Communications Cap Operations, LLC (rate centre WSHNGTNZN3, MD, NANPA abbreviation).

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

Reported numbers in 301-442