← Area code 712
712-404 phone numbers
Numbers 712-404-0000 to 712-404-9999 are assigned to New Cingular Wireless PCS, LLC in Harlan, IA. 4 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 712-404-2xxx, 712-404-5xxx, 712-404-6xxx, 712-404-7xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.