240-820 phone numbers

Numbers 240-820-0000 to 240-820-9999 are assigned to Onvoy, LLC (rate centre ASHTON238, MD, NANPA abbreviation). 6 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 240-820-9xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 240-820