← Area code 220
220-229 phone numbers
Numbers 220-229-0000 to 220-229-9999 are assigned to Csc Voice, LLC (rate centre CHESTERHL, OH, NANPA abbreviation). 2 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 220-229-0xxx, 220-229-2xxx, 220-229-3xxx, 220-229-4xxx, 220-229-6xxx, 220-229-7xxx, 220-229-8xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.