| City | Area Code | Dialing Code |
|---|---|---|
| Altus | 580 | +1 580 |
| Ardmore | 580 | +1 580 |
| Bartlesville | 539 | +1 539 |
| Bartlesville | 918 | +1 918 |
| Bethany | 405 | +1 405 |
| Broken Arrow | 539 | +1 539 |
| Broken Arrow | 918 | +1 918 |
| Del City | 405 | +1 405 |
| Duncan | 580 | +1 580 |
| Edmond | 405 | +1 405 |
| Enid | 580 | +1 580 |
| Lawton | 580 | +1 580 |
| Midwest City | 405 | +1 405 |
| Moore | 405 | +1 405 |
| Muskogee | 539 | +1 539 |
| Muskogee | 918 | +1 918 |
| Norman | 405 | +1 405 |
| Oklahoma City | 405 | +1 405 |
| Ponca City | 580 | +1 580 |
| Shawnee | 405 | +1 405 |
| Stillwater | 405 | +1 405 |
| Tulsa | 539 | +1 539 |
| Tulsa | 918 | +1 918 |
| Yukon | 405 | +1 405 |