← Area code 501
501-691 phone numbers
Numbers 501-691-0000 to 501-691-9999 are assigned to New Cingular Wireless PCS, LLC (rate centre HEBER SPG, AR, NANPA abbreviation).
Not assigned to any carrier: 501-691-7xxx, 501-691-8xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.