The Federal Communications Commission (FCC) has granted a total of 44 licenses and call signs in the category of Restricted Operator license in Concord, California. 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 |
|---|---|---|
| RL00008965 | Vyas, Jay H | 2013-01-31 |
| RR00000244 | HOUSTON, TODD E | 2001-06-01 |
| RR00018826 | Lunsford, Timothy R | 2004-04-28 |
| RR00021005 | Hammons, Robert G | 2004-07-15 |
| RR00031569 | Neil, Steven D | 2005-09-15 |
| RR00039221 | andersen, craig f | 2006-08-11 |
| RR00040650 | Andersen, Bradford D | 2006-09-23 |
| RR00042911 | Jageman Jr., William E | 2006-12-06 |
| RR00044114 | FLEMING, CRAIG L | 1988-12-09 |
| RR00055172 | Russell, Brent N | 2007-12-29 |
| RR00055912 | Beardsley, Kevin M | 2008-01-23 |
| RR00066399 | Ammerman, Edward L | 2009-07-16 |
| RR00066920 | Sarbo, Gina | 2009-08-22 |
| RR00070546 | Mateu, Shelley K | 2010-04-07 |
| RR00072825 | Shreve, Benjamin A | 2010-08-03 |
| RR00080510 | Brannon Sr, Jeffrey M | 2011-08-03 |
| RR00084573 | Peterson, Tyler A | 2012-02-08 |
| RR00090120 | Barone II, Richard A | 2012-10-31 |
| RR00104758 | Hewlett, James R | 2014-07-23 |
| RR00111751 | Bath, Jaspreet | 2015-05-05 |
| RR00116183 | Hewlett, Norman P | 2015-10-29 |
| RR00116940 | Cabral, Patrick J | 2015-12-01 |
| RR00117121 | Dsouza, Savio | 2015-12-08 |
| RR00118632 | Gholampour, Mohsen | 2016-02-05 |
| RR00119748 | May, Steven | 2016-03-16 |
| RR00120872 | Palinka, Rickard N | 2016-04-23 |
| RR00122021 | Gurascier, Helena | 2016-06-03 |
| RR00122388 | Chidambaram, Barathi | 2016-06-15 |
| RR00130172 | Nelson, Bryce E | 2017-03-21 |
| RR00133519 | Brennan, Edouard | 2017-07-04 |
| RR00133825 | Gebhards, Darrick D | 2017-07-13 |
| RR00141293 | Chaney, Michael C | 2018-03-06 |
| RR00141620 | Chou, Han Hsiang | 2018-03-15 |
| RR00144063 | Klang, Aaron R | 2018-05-19 |
| RR00145827 | Wilson, Jessica E | 2018-07-12 |
| RR00148810 | Berlin, Larry D | 1967-05-26 |
| RR00149033 | Baggett, Charles W | 2018-10-13 |
| RR00150814 | Portello, Andrew | 2018-12-11 |
| RR00150905 | Ciaramitaro, Paul D | 2018-12-11 |
| RR00157725 | Cloes, Donald A | 2019-06-19 |
| RR00163123 | RACHAGARLA, MANAS T | 2019-11-20 |
| RR00175884 | Tavares M Cousseiro, Daniel | 2021-05-25 |
| RR00176277 | Weisz, Dean A | 2021-06-07 |
| RR00186421 | DeGroen III, Francois P | 2022-02-19 |
