740-433 phone numbers

Numbers 740-433-0000 to 740-433-9999 are assigned to Level 3 Communications, LLC in Cadiz, OH. 4 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 740-433-0xxx, 740-433-1xxx, 740-433-6xxx, 740-433-7xxx, 740-433-8xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 740-433