← Area code 731
731-233 phone numbers
Numbers 731-233-0000 to 731-233-9999 are assigned to Verizon Wireless in Greenfield, TN. 5 of its ten thousand-number blocks are assigned to other carriers (number pooling).
Not assigned to any carrier: 731-233-1xxx, 731-233-5xxx, 731-233-6xxx, 731-233-8xxx, 731-233-9xxx — calls from these use spoofed caller IDs.
Source: North American Numbering Plan Administrator, Nov 3, 2026. Numbers can move between carriers.