The Federal Communications Commission (FCC) has granted a total of 508 licenses and call signs in the category of Amateur 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 |
|---|---|---|
| KG6RHF | Houston, Brian C | 2013-04-27 |
| KG6SVN | Brink, Ernest C | 2013-07-24 |
| KG6TCK | Cook, Robert C | 2013-11-23 |
| KG6TGX | Heinrich, Antonia P | 2013-10-17 |
| KG6TNS | TSE, GREGORY A | 2014-01-22 |
| KG6TRV | Clem, Charles R | 2013-10-31 |
| KG6TWA | CORDOVA, DINAH C | 2013-11-23 |
| KG6TYB | Ciernik II, Robert J | 2014-02-22 |
| KG6UGV | Maxwell, Charles W | 2004-03-25 |
| KG6UGW | Maxwell, Charles J | 2014-01-07 |
| KG6UHN | Ciaramitaro, Samuel J | 2014-01-29 |
| KG6VDZ | Orsolino, David M | 2014-03-26 |
| | ||
| KG6VTD | Fujii, Janice J | 2014-07-01 |
| KG6VVT | GWATHNEY, MICHAEL | 2004-08-04 |
| KG6WHK | Lambert, Ralph E | 2014-07-26 |
| KG6WLV | Wisyanski, John J | 2014-08-21 |
| KG6WPC | Molascon, Edward | 2014-08-23 |
| KH6LO | PHIPPS, DONALD L | 2016-06-15 |
| KH7WN | SETT, SAMMY M | 2019-07-09 |
| KH7WP | SETT, MAUNG M | 2020-04-08 |
| KH7WR | SETT, EDWIN N | 2019-07-30 |
| KH7WS | SETT, JEAN Y | 2019-07-09 |
| KI6BEP | McGrath-Wagner, David C | 2015-09-14 |
| KI6BFA | McGrath-Wagner, Dennis | 2015-09-14 |
| KI6BSD | SENATORI, STEPHEN J | 2017-10-21 |
| KI6CMR | PECK, FRANKLIN P | 2016-02-02 |
| KI6CMS | PECK, SHIRLEY J | 2016-02-02 |
| KI6DCC | SMITH, JESSE A | 2016-01-12 |
| KI6DCD | Graham Jr, Charles W | 2006-03-23 |
| KI6DQS | CAMPBELL, JERRY C | 2016-03-07 |
| KI6DZL | Shepherd, Mark E | 2016-05-28 |
| KI6ENF | Clark, Arthur E | 2016-05-03 |
| KI6FPF | SOIBELMAN, DENNIS L | 2006-09-27 |
| KI6FPG | SOIBELMAN, CAROL C | 2006-09-27 |
| KI6FYL | Dortzbach-Hudlin, Linda | 2016-09-02 |
| KI6FYY | Christian, Catrina | 2006-10-19 |
| KI6FZB | YEE, STUART P | 2018-03-13 |
| KI6GCJ | Marseille, Michael W | 2006-10-23 |
| KI6GRZ | MCGLOTHIN, KATHERINE I | 2016-09-28 |
| KI6HLZ | DALTON, JEFF K | 2016-11-24 |
| KI6KND | Dunn, David T | 2007-06-18 |
| KI6KYP | RENWICK, ANDREW B | 2017-05-30 |
| KI6LEQ | Noble, Brian J | 2017-05-06 |
| KI6LNB | Loomer, Larry S | 2017-05-26 |
| KI6MIQ | Williams, Shelly | 2017-07-26 |
| KI6MOP | Schreiber, Stefani M | 2007-10-25 |
| KI6MOU | Schreiber, Tyler W | 2007-10-25 |
| KI6OJZ | Woodring, Daniel C | 2008-02-07 |
| KI6OOD | Knight, Shirley R | 2008-02-14 |
| KI6OOE | Gee, Kenton A | 2008-02-14 |
| KI6OUC | Eddy, Anna B | 2008-02-22 |
| KI6OUD | Eddy, Elton J | 2008-02-22 |
| KI6PDK | Kolosanov, Vadim O | 2008-03-05 |
| KI6QNC | Campos, Carlos | 2008-05-19 |
| KI6QND | Campos, Marie | 2008-05-19 |
| KI6SCM | Kraczkowski, Stanislaw E | 2008-07-21 |
| KI6SDQ | POWELL 458, DONALD L | 2020-01-18 |
| KI6SVC | Spector, Arthur A | 2018-05-30 |
| KI6SVG | Harrell, Richard H | 2008-08-22 |
| KI6TVO | Montemayor, Oscar N | 2008-10-24 |
| KI6TVT | Baird, Michael | 2008-10-24 |
| KI6VAM | Bottini, Gregory D | 2019-12-03 |
| KI6VEZ | Ross II, John R | 2009-01-20 |
| KI6WPF | Smith, Martin W | 2009-03-10 |
| KI6YGY | SAMBAMOORTHY, KANNAN | 2009-04-07 |
| KI6YSC | HALEY, BEVERLY A | 2009-04-23 |
| KI6YSD | HALEY, ERNST ROY | 2009-04-23 |
| KI6ZFQ | Clark, Justin | 2009-05-07 |
| KI6ZUB | LINKIEWICZ JR, MARK D | 2019-11-26 |
| KJ6ABB | Traylor, Mark A | 2019-04-10 |
| KJ6AKZ | PITMAN, DAVID E | 2019-06-11 |
| KJ6AOY | Mcknelly, Nathan R | 2009-06-25 |
| KJ6AOZ | Hultgren 686, Erik A | 2019-06-15 |
| KJ6APB | Lodge, Gary D | 2019-05-23 |
| KJ6APP | Mitchell, Peter J | 2009-06-25 |
| KJ6BUD | Sarbo, Gina | 2019-06-14 |
| KJ6BUG | Venturino, John | 2019-06-11 |
| KJ6BUH | Charles, Karyn E | 2009-08-25 |
| KJ6BVE | GAMBALAN, LYNDON C | 2020-09-17 |
| KJ6CCL | RAGSDALE, CHARLES W | 2019-07-04 |
| KJ6CGV | Ragsdale, Barbara L | 2019-07-04 |
| KJ6CHW | Wu, Albert P | 2019-08-21 |
| KJ6CWS | Kerr, David E | 2019-08-30 |
| KJ6FNL | Guy, Robin F | 2020-01-13 |
| KJ6FNM | Clark, Robert J | 2019-12-11 |
| KJ6FNN | Clark, Shon J | 2019-12-10 |
| KJ6FNY | Donovan, Debra T | 2019-12-13 |
| KJ6GLY | Corcoran, Karyn F | 2010-03-25 |
| KJ6GSJ | Luevano, Laura T | 2010-04-07 |
| KJ6IGW | Skourup, Lucie P | 2020-05-23 |
| KJ6IUE | CUNHA, ANTHONY M | 2010-06-11 |
| KJ6KIF | Krajcin, Alen | 2020-11-03 |
| KJ6KPV | Sindermann, Christoph | 2020-08-18 |
| KJ6KYP | Worsdell, Clayton M | 2020-08-05 |
| KJ6KYR | Hink, Jason W | 2010-10-21 |
| KJ6KYS | DeSalles, Jeffrey L | 2010-10-21 |
| KJ6KYX | Melsheimer, Richard B | 2010-10-21 |
| KJ6KZQ | Hartz, Robert M | 2021-06-18 |
| KJ6MXP | Baker, Elaine G | 2021-01-08 |
| KJ6NBO | Edward, Susan K | 2011-03-09 |
