501-456 phone numbers

Numbers 501-456-0000 to 501-456-9999 are assigned to Level 3 Communications, LLC in Judsonia, AR. 4 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 501-456-2xxx, 501-456-3xxx, 501-456-5xxx, 501-456-6xxx, 501-456-8xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 501-456