← Area code 240
240-541 phone numbers
Numbers 240-541-0000 to 240-541-9999 are assigned to New Cingular Wireless PCS, LLC (rate centre WSHNGTNZN2, MD, NANPA abbreviation). 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.