484-381 phone numbers

Numbers 484-381-0000 to 484-381-9999 are assigned to Level 3 Communications, LLC (rate centre PHPHSBZN25, PA, NANPA abbreviation). 3 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 484-381-5xxx, 484-381-6xxx, 484-381-7xxx, 484-381-8xxx, 484-381-9xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 484-381