| District of Missouri area codes: 314 | |
|---|---|
| Country | United States |
| State/Province | Missouri |
| Major City | Saint Louis |
| Time Zone | Central |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 314-616 | Saint Louis City | Saint Louis, MO | New Cingular Wireless PCS - IL |
| 314-617 | Saint Louis City | Saint Louis, MO | Metrotel |
| 314-619 | Saint Louis | Ladue, MO | Cellco Partnership DBA Verizon Wireless |
| 314-620 | Saint Louis | Creve Coeur, MO | AT&T Local |
| 314-621 | Saint Louis City | Saint Louis, MO | Southwestern Bell |
| 314-622 | Saint Louis City | Saint Louis, MO | Southwestern Bell |
| 314-623 | Saint Louis | Kirkwood, MO | New Cingular Wireless PCS - IL |
| 314-625 | Saint Louis | Maryland Heights, MO | Birch Telecom Of Missouri |
| 314-626 | Saint Louis City | Saint Louis, MO | Local Access LLC |
| 314-627 | Saint Louis City | Saint Louis, MO | Peerless Network Of Missouri |
| 314-628 | Saint Louis | Creve Coeur, MO | Southwestern Bell |
| 314-629 | Saint Louis City | Saint Louis, MO | T-mobile Usa |
| 314-630 | Saint Louis | Kirkwood, MO | New Cingular Wireless PCS - IL |
| 314-631 | Saint Louis | Saint Louis, MO | Southwestern Bell |
| 314-632 | Saint Louis City | Saint Louis, MO | Southwestern Bell |
| 314-633 | Saint Louis | Saint Louis, MO | Southwestern Bell |
| 314-635 | Saint Louis | Sappington, MO | Global Crossing Local Services-mo |
| 314-637 | Saint Louis | Saint Ann, MO | Global Crossing Local Services-mo |
| 314-638 | Saint Louis | Saint Louis, MO | Southwestern Bell |
| 314-640 | Saint Louis | Kirkwood, MO | New Cingular Wireless PCS - IL |
There are 662 prefixes, In the code area, the major cities are Affton, MO;Ferguson, MO;Florissant, MO;Hazelwood, . The major city is Saint Louis.