| General Information about Area Code 712 | |
|---|---|
| Country | United States |
| State / Province / Territory | Iowa |
| Major City | Sioux City |
| Time Zone | Central (UTC-06:00) |
| Prefix | Primary City | County | Phone Type |
|---|---|---|---|
| 712-461 | Sibley | Osceola | Wireless |
| 712-779 | Massena | Cass | Landline |
| 712-736 | Melvin | Osceola | Landline |
| 712-579 | Earling | Shelby | Wireless |
| 712-221 | Cherokee | Cherokee | Wireless |
| 712-290 | Rockwell City | Calhoun | Landline |
| 712-858 | Spirit Lake | Dickinson | Landline |
| 712-442 | Woodbine | Harrison | Wireless |
| 712-425 | Mallard | Palo Alto | Landline |
| 712-759 | Spirit Lake | Dickinson | Landline |
| 712-646 | Missouri Valley | Harrison | Landline |
| 712-975 | Schaller | Sac | Wireless |
| 712-466 | Lytton | Calhoun | Landline |
| 712-656 | Glidden | Carroll | Landline |
| 712-219 | Onawa | Monona | Wireless |
| 712-237 | Sergeant Bluff | Woodbury | Landline |
| 712-343 | Avoca | Pottawattamie | Landline |
| 712-737 | Orange City | Sioux | Landline |
| 712-782 | Irwin | Shelby | Landline |
| 712-748 | Defiance | Shelby | Landline |