The Federal Communications Commission (FCC) has granted a total of 28 licenses and call signs in the category of Restricted Operator license in Mason, Ohio. 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 |
|---|---|---|
| RR00009818 | Massa, Anthony J | 2002-12-19 |
| RR00015719 | REUSS, EDWARD J | 2003-12-24 |
| RR00018950 | TOMAICH, GEORGE T | 2004-05-01 |
| RR00023369 | Pintz, Henry S | 2004-10-20 |
| RR00026930 | Hawkins, Timothy H | 2005-03-24 |
| RR00038478 | Djandjighian, Laurent A | 2006-07-08 |
| RR00042154 | Blattner, Jamie L | 2006-11-07 |
| RR00055319 | STONE, EDWARD A | 1996-12-04 |
| RR00073161 | Hutter, Ivan B | 2010-08-17 |
| RR00076331 | Deeds, Galen P | 2011-02-09 |
| RR00092649 | Krummen, Steven P | 2013-02-12 |
| RR00099438 | Olezeski, Stephanie K | 2014-01-07 |
| RR00104285 | Miller, Matthew A | 2014-07-04 |
| RR00116152 | Roy, Daniel P | 2015-10-28 |
| RR00132821 | Ice, Samuel C | 2017-06-10 |
| RR00136228 | RUTHERFORD, KENNETH L | 2017-09-30 |
| RR00142359 | Hall, James B | 2018-04-05 |
| RR00148470 | Behymer, Jennifer S | 2018-09-29 |
| RR00149191 | Misawa Yee, Jurian | 2018-10-20 |
| RR00153130 | Schaaf, Brian | 2019-02-26 |
| RR00159966 | Meere, DavID | 2019-08-21 |
| RR00168653 | Foster 210, Nicole C | 2020-06-09 |
| RR00173737 | Bredemeier, Ken O | 2021-03-26 |
| RR00179626 | Betcher, William T | 2021-09-01 |
| RR00187642 | Direnzi, Christopher J | 2022-03-18 |
| RR00194529 | Gillespie, Matthew | 2022-08-11 |
| RR00201202 | Foley, Ryan P | 2023-01-04 |
| RR00203743 | Acharya, Rajeshkumar R | 2023-02-22 |
