← Area code 256
256-205 phone numbers
Numbers 256-205-0000 to 256-205-9999 are assigned to Onvoy Spectrum, LLC in Wadley, AL. 1 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 256-205-0xxx, 256-205-2xxx, 256-205-3xxx, 256-205-4xxx, 256-205-6xxx, 256-205-7xxx, 256-205-8xxx, 256-205-9xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.