← Area code 503
503-703 phone numbers
Numbers 503-703-0000 to 503-703-9999 are assigned to New Cingular Wireless PCS, LLC in Portland, OR.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.
Numbers 503-703-0000 to 503-703-9999 are assigned to New Cingular Wireless PCS, LLC in Portland, OR.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.