← Area code 660
660-548 phone numbers
Numbers 660-548-0000 to 660-548-9999 are assigned to Brightspeed of East Missouri, LLC in Brunswick, MO. 3 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 660-548-0xxx, 660-548-4xxx, 660-548-5xxx, 660-548-6xxx, 660-548-8xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.