The Federal Communications Commission (FCC) has granted a total of 27 licenses and call signs in the category of Amateur license in O'fallon, Missouri. Select a call sign from the table below to view its details such as the date of authorization, expiration date, service description, and so forth.
| Call Sign | License Holder Name | Date of Authorization |
|---|---|---|
| AA0RT | SWIM, PHILLIP B | 2013-10-31 |
| K0BPS | HOFFMAN, BENJAMIN P | 2014-12-16 |
| K0VEQ | HANSARD, RICHARD L | 2005-01-26 |
| KA0YNW | BILOW, JACK G | 2016-04-26 |
| KA9FIO | GILVIN, GAYLA S | 2010-05-18 |
| KB8YOJ | CAHOURS, JAMES L | 2005-09-09 |
| KB9TLC | Neblock, Carl S | 2018-07-03 |
| KC0LKV | Nunziante, Andrea | 2015-10-14 |
| KC0OOV | PIFER, MICHAEL N | 2012-09-13 |
| KC0OVA | WOERHEIDE, ROBERT G | 2023-03-28 |
| KC0QQD | Drumeller, Joshua K | 2013-07-12 |
| KC3LOX | Gothe, Dominik | 2018-06-06 |
| KD0TSG | Prinster, Bruce A | 2022-09-07 |
| KD0UBU | Walls, Martin J | 2013-01-11 |
| KD5STT | O Neill, Diana K | 2012-03-09 |
| KD5STU | O Neill, John C | 2012-03-09 |
| KE0AOB | McGrail, Neal D | 2014-05-16 |
| KE0KKV | Burbridge, Joshua O | 2016-09-23 |
| KE5DZH | Kanofsky, LEWIS M | 2014-12-12 |
| KF5MWZ | Brieden, Kyle M | 2011-09-29 |
| KJ6WXG | Sawyer, Thomas L | 2022-03-18 |
| KM5LZ | GILVIN, DANIEL L | 2012-05-10 |
| KN4CCU | Pope 210, Matthew G | 2017-03-24 |
| N0RSL | COOPER, JAMES N | 2013-04-10 |
| ND0F | HIGGINS, JAMES E | 2021-03-27 |
| WA9JOP | DUFNER, CARL D | 2015-03-24 |
| WB0SVS | Evans, Robert D | 2016-04-08 |
