← Area code 712
712-358 phone numbers
Numbers 712-358-0000 to 712-358-9999 are assigned to Verizon Wireless in Havelock, IA. 2 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 712-358-5xxx, 712-358-6xxx, 712-358-7xxx, 712-358-8xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.