The Federal Communications Commission (FCC) has granted a total of 23 licenses and call signs in the category of Restricted Operator 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 |
|---|---|---|
| RR00000722 | Leary, Sean O | 2001-03-01 |
| RR00002539 | Meder, Robert V | 2001-08-24 |
| RR00007239 | Mattasolio, Ty | 2002-07-18 |
| RR00009529 | Smith Mr, James R | 2002-11-28 |
| RR00010409 | Craig, Dennis D | 2003-01-31 |
| RR00010412 | Miller, Adam L | 2003-01-31 |
| RR00015766 | Ritter, Jason M | 2003-12-30 |
| RR00023291 | Hefner, Eric R | 2004-10-16 |
| RR00028752 | Bell, Samuel J | 2005-05-28 |
| RR00030068 | Ford, Timothy H | 2005-07-14 |
| RR00033530 | Jacobs, Robert L | 2005-12-21 |
| RR00049011 | Huff, Zachary W | 2007-06-12 |
| RR00052974 | Graybill, Adam M | 2007-10-10 |
| RR00055709 | FURMAN, KRZYSZTOF M | 2008-01-15 |
| RR00056866 | Saunders, Lindsey E | 2008-02-21 |
| RR00078685 | Dimmic, Wayne E | 2011-05-12 |
| RR00079701 | Brown, Joshua W | 2011-06-28 |
| RR00086316 | Chidester, Damon R | 2012-04-24 |
| RR00098072 | Kloppenburg, John C | 2013-11-01 |
| RR00104490 | Cunningham, Bonnie J | 2014-07-15 |
| RR00160115 | Bila, Pedro C | 2019-08-27 |
| RR00175769 | Rogers, Stephen M | 2021-05-22 |
| RR00181302 | Walsh, Samuel J | 2021-10-14 |
