| Frequency | Company name | RS | City |
|---|---|---|---|
| 39.1000 | DUNCAN, CITY OF | PL | DUNCAN |
| 39.8200 | DUNCAN, CITY OF | PL | DUNCAN |
| 155.8350 | DUNCAN, CITY OF | PL | DUNCAN |
| 161.5500 | SOUTHERN PACIFIC RAILWAY | LR | DUNCAN |
| 460.4500 | GREENLEE COUNTY SHERIFF | PP | DUNCAN |
| 460.5750 | DUNCAN FIRE DEPARTMENT | PF | DUNCAN |