← Area code 681
681-309 phone numbers
Numbers 681-309-0000 to 681-309-9999 are assigned to Bandwidth.com CLEC, LLC in Grafton, WV. 4 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 681-309-1xxx, 681-309-3xxx, 681-309-4xxx, 681-309-5xxx, 681-309-7xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.