681-400 phone numbers

Numbers 681-400-0000 to 681-400-9999 are assigned to Csc Voice, LLC (rate centre WHITESVL, WV, NANPA abbreviation). 7 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 681-400-2xxx, 681-400-9xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 681-400