667-660 phone numbers

Numbers 667-660-0000 to 667-660-9999 are assigned to Onvoy, LLC (rate centre MARION, MD, NANPA abbreviation). 1 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 667-660-0xxx, 667-660-1xxx, 667-660-2xxx, 667-660-3xxx, 667-660-9xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 667-660