| District of Iowa area codes: 712 | |
|---|---|
| Country | United States |
| State/Province | Iowa |
| Major City | Sioux City |
| Time Zone | Central (UTC-06:00) |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 712-314 | Pottawattamie | Carter Lake, IA | Sprint Spectrum L.p. |
| 712-318 | Pottawattamie | Carter Lake, IA | Alliance Connect |
| 712-320 | Dickinson | Spirit Lake, IA | United States Cellular Corp. - Iowa |
| 712-322 | Pottawattamie | Council Bluffs, IA | Qwest Corporation |
| 712-323 | Pottawattamie | Council Bluffs, IA | Qwest Corporation |
| 712-324 | Obrien | Sheldon, IA | Qwest Corporation |
| 712-325 | Pottawattamie | Council Bluffs, IA | Qwest Corporation |
| 712-326 | Pottawattamie | Council Bluffs, IA | Qwest Corporation |
| 712-327 | Montgomery | Red Oak, IA | Rsa 1 Limited Partnership DBA Chat Mobility |
| 712-328 | Pottawattamie | Council Bluffs, IA | Qwest Corporation |
| 712-329 | Pottawattamie | Council Bluffs, IA | Qwest Corporation |
| 712-330 | Dickinson | Spirit Lake, IA | Cellco Partnership DBA Verizon Wireless |
| 712-331 | Dickinson | Spirit Lake, IA | Long Lines Wireless |
| 712-332 | Dickinson | Arnolds Park, IA | Qwest Corporation |
| 712-333 | Woodbury | Sioux City, IA | Long Lines Wireless |
| 712-334 | Buena Vista | Sioux Rapids, IA | Cellco Partnership DBA Verizon Wireless |
| 712-335 | Pocahontas | Pocahontas, IA | Qwest Corporation |
| 712-336 | Dickinson | Spirit Lake, IA | Qwest Corporation |
| 712-337 | Dickinson | Arnolds Park, IA | Qwest Corporation |
| 712-338 | Dickinson | Milford, IA | Qwest Corporation |
There are 484 prefixes, In the code area, the major cities are Council Bluffs, IA;Sioux City, IA. The major city is Sioux City.