← Area code 660
660-489 phone numbers
Numbers 660-489-0000 to 660-489-9999 are assigned to Otelco Mid-Missouri LLC (rate centre HIGH POINT, MO, NANPA abbreviation). 1 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 660-489-0xxx, 660-489-1xxx, 660-489-3xxx, 660-489-5xxx, 660-489-6xxx, 660-489-7xxx, 660-489-8xxx, 660-489-9xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.