The Federal Communications Commission (FCC) has granted a total of 30 licenses and call signs in the category of Restricted Operator license in Crofton, Maryland. 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 |
|---|---|---|
| RL00014741 | Beltramone, Emiliano L | 2019-02-20 |
| RR00001004 | Simms, Adam B | 2001-06-21 |
| RR00001712 | FERGUSON, ROBERT M | 2001-07-19 |
| RR00004489 | SIMMONS, PAUL J | 2002-02-09 |
| RR00012396 | CAUSEY, RANDOLPH E | 1977-02-11 |
| RR00018466 | Kruck, Ralph E | 2004-04-14 |
| RR00019549 | Youskauskas, Christopher C | 2004-05-22 |
| RR00086000 | Baumgartner, Robert G | 2012-04-11 |
| RR00087704 | Allen, Michael J | 2012-06-27 |
| RR00091387 | Elliott, Brandon | 2012-12-19 |
| RR00093836 | Swanson, Ray A | 2013-04-05 |
| RR00098505 | DeForest, Andrew J | 2013-11-19 |
| RR00100686 | Ochalek, Aaron M | 2014-02-20 |
| RR00100693 | Byal, Jason D | 2014-02-21 |
| RR00101557 | Peterson, Matthew G | 2014-03-27 |
| RR00102119 | Khalisdar, Shafkatul | 2014-04-16 |
| RR00109820 | Gates, Ryan D | 2015-02-19 |
| RR00115277 | Smith, Ricky D | 2015-09-30 |
| RR00115974 | Cruz, Travis M | 2015-10-23 |
| RR00117192 | McClaskey, Jacqueline A | 2015-12-10 |
| RR00129792 | Arbogast, Valentine S | 2017-03-07 |
| RR00134050 | WEST, STATON W | 2017-07-21 |
| RR00134416 | Magruder, Daren D | 2017-08-02 |
| RR00138640 | Shelly, Thomas R | 2017-12-15 |
| RR00142085 | Poppe, Neil B | 2018-03-28 |
| RR00154085 | McDonough, Matthew R | 2019-03-19 |
| RR00165023 | Bender, Thomas | 2020-01-16 |
| RR00176201 | Duane, Thomas J | 2021-06-04 |
| RR00178963 | Jardis, Ross T | 2021-08-17 |
| RR00182777 | Harding, Joseph J | 2021-11-23 |
