← Area code 240
240-254 phone numbers
Numbers 240-254-0000 to 240-254-9999 are assigned to Teleport Communications America, LLC (rate centre HUGHESVL, MD, NANPA abbreviation). 7 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 240-254-5xxx, 240-254-6xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.