445-544 phone numbers

Numbers 445-544-0000 to 445-544-9999 are assigned to Onvoy Spectrum, LLC (rate centre PHLDLPHZN1, PA, NANPA abbreviation). 9 of its ten thousand-number blocks are assigned to other carriers (number pooling).

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

Reported numbers in 445-544