← Area code 920
920-575 phone numbers
Numbers 920-575-0000 to 920-575-9999 are assigned to Onvoy, LLC in Juneau, WI. 2 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 920-575-1xxx, 920-575-2xxx, 920-575-3xxx, 920-575-4xxx, 920-575-6xxx, 920-575-8xxx, 920-575-9xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.