412-283 phone numbers

Numbers 412-283-0000 to 412-283-9999 are assigned to Fidium Enterprise Services, LLC (rate centre PTGSBNZN12, PA, NANPA abbreviation). 8 of its ten thousand-number blocks are assigned to other carriers (number pooling).

Not assigned to any carrier: 412-283-1xxx — calls from these use spoofed caller IDs.

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

Reported numbers in 412-283