← Area code 720
720-320 phone numbers
Numbers 720-320-0000 to 720-320-9999 are assigned to New Cingular Wireless PCS, LLC in Denver, CO.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.
Numbers 720-320-0000 to 720-320-9999 are assigned to New Cingular Wireless PCS, LLC in Denver, CO.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.