Federal Communications Commission (FCC) has granted 72 radio service licenses and call signs in O'fallon, Missouri. Select a service category from the following table to research licenses and call signs in that category.
| Radio Service Category | Number of Licenses |
|---|---|
| Amateur licenses | 27 |
| Restricted Operator licenses | 23 |
| General Mobile Radio (GMRS) licenses | 17 |
| Vanity licenses | 5 |
