240-489 phone numbers

Numbers 240-489-0000 to 240-489-9999 are assigned to Mcimetro Access Transmission Services LLC (rate centre POOLESVL, MD, NANPA abbreviation). 4 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 240-489-7xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 240-489