740-320 phone numbers

Numbers 740-320-0000 to 740-320-9999 are assigned to Level 3 Communications, LLC in Cadiz, OH. 2 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 740-320-1xxx, 740-320-2xxx, 740-320-3xxx, 740-320-5xxx, 740-320-6xxx, 740-320-8xxx, 740-320-9xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 740-320