← Area code 585
585-803 phone numbers
Numbers 585-803-0000 to 585-803-9999 are assigned to Onvoy, LLC- Ny (rate centre ATLANTA, NY, NANPA abbreviation). 2 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 585-803-0xxx, 585-803-6xxx, 585-803-7xxx, 585-803-8xxx, 585-803-9xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.