The Federal Communications Commission (FCC) has granted a total of 372 licenses and call signs in the category of Amateur license in Castle Rock, Colorado. 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 |
|---|---|---|
| AB0WV | Watervoort, Frank W | 2015-05-27 |
| AC0BB | Burns, Jason E | 2013-10-18 |
| AD0BQ | SMITH II, NORMAN E | 2012-08-30 |
| AD0HT | Dickson, W Zachary | 2013-04-29 |
| AE0BP | Sinclair, Mark C | 2018-04-06 |
| AE0GK | RINK, TIMOTHY P | 2019-05-23 |
| AE0IR | JENSEN, CARLYLE S | 2020-04-28 |
| AE0KY | Kelton, Allen B | 2020-11-02 |
| AE5UP | Edmunds, Daniel K | 2020-07-07 |
| AK4LK | KEYS, LANCE G | 2021-02-03 |
| K6TUH | FRADIN, GERALD J | 2015-09-19 |
| K7NKS | Gallup Jr, Charles L | 2017-04-03 |
| | ||
| K9CZV | Schwartz, Michael L | 2017-08-11 |
| KA0CYN | WACHS, DANIEL | 2011-06-01 |
| KA0FXH | AYRES, THEODORE J | 2017-01-31 |
| KA0MWA | TONGE, TIMOTHY J | 2022-08-30 |
| KA0QEJ | SPENCE, JEFFREY A | 2004-09-21 |
| KA0ZNM | TURANO, JOHN R | 2016-04-27 |
| KA5IGC | MAZUR, VINCENT S | 2009-10-03 |
| KA6HXD | YOUNG, DANNY W | 2015-05-08 |
| KA9ODE | HEFTY, GARRY E | 2017-08-28 |
| KB0BAN | DOWSETT, DEAN A | 2023-02-15 |
| KB0JI | IRVIN, ROBERT D | 2020-12-02 |
| KB0JMP | VOTH, NICHOLAS A | 2013-07-23 |
| KB0MJS | MASOVERO, PAUL A | 2014-04-01 |
| KB0MPD | KAHLER, STANLEY B | 2014-05-13 |
| KB0MPZ | CANNON, TERRENCE P | 2014-05-30 |
| KB0OOT | TUFTS, FLETCHER K | 2014-01-15 |
| KB0PUU | KAHLER, TERESITA J | 2015-01-21 |
| KB0PZO | ESTLUND, DANA L | 2014-09-19 |
| KB0QNP | GERMANO, DAVID R | 2016-11-18 |
| KB0SSU | ALTMANN, PETER | 2011-11-22 |
| KB0SSV | ALTMANN, REGINA | 2012-06-12 |
| KB0SXF | UNDERWOOD, RALPH E | 2015-07-02 |
| KB0SXG | UNDERWOOD, LINDA S | 2015-07-03 |
| KB0VZH | DUEY, JON H | 2016-12-01 |
| KB0WX | Stienmier, Richard H | 2014-07-15 |
| KB0ZCS | GLYNN, LISA S | 2016-10-25 |
| KB1UM | GEIER, MICHAEL J | 2013-12-03 |
| KB2LAG | Brightenfield Jr., Laurence | 2021-07-31 |
| KB6ADE | HOLMES, DON W | 2019-12-04 |
| KB8PYC | HERMAN, RONALD J | 2013-08-12 |
| KB9HPR | Nordstrom, Jeffrey E | 2012-04-05 |
| KB9KTK | BONOMO, BRETT M | 2015-06-02 |
| KC0BPU | SCHNEIDER, LIAM R | 2018-07-12 |
| KC0CJF | MARTIN, THERESE A | 2008-08-26 |
| KC0CNS | COFER, DAERON A | 2018-02-14 |
| KC0GBH | Rader, Timothy K | 2019-03-28 |
| KC0GCT | KOMDAT, JOHN W | 2009-07-07 |
| KC0JMW | Woodard, Jim | 2020-10-27 |
| KC0LIY | Gagnon, Christopher K | 2011-09-27 |
| KC0LSS | DeLange, John D | 2011-09-30 |
| KC0LZE | Shenton, Shawn L | 2022-01-11 |
| KC0MCY | SMELTZER, WILLIAM D | 2012-06-27 |
| KC0MHT | Cook, David E | 2012-02-24 |
| KC0MQC | TROW JR, RICHARD F | 2022-03-16 |
| KC0QHC | Vichareli, Juanita | 2013-03-23 |
| KC0QHD | Crosswhite, Joel C | 2013-06-07 |
| KC0RPP | Finch, Logan T | 2004-02-13 |
| KC0SCE | SORTORE, NICK A | 2014-03-11 |
| KC0SPB | Kriz, David A | 2014-03-19 |
| KC0TJM | WALTERS, JOHN E | 2014-09-15 |
| KC0UEL | MAREADY, CATHERINE A | 2005-03-28 |
| KC0WJZ | Nowakowski, Ryan A | 2006-04-11 |
| KC0WRB | MAKENS, MATTHEW P | 2016-03-15 |
| KC5LNI | HILL, RANDALL S | 2005-04-27 |
| KC7TZF | JOHNSON, GREG R | 2019-09-04 |
| KC9FJG | SHANLEY, KYLE F | 2014-08-28 |
| KD0ACH | Shipley, John D | 2017-04-18 |
| KD0AHZ | Bridges, Kenneth S | 2007-04-17 |
| KD0AWV | Watson, Timothy D | 2007-06-11 |
| KD0BAU | Owens, David L | 2007-06-27 |
| KD0BAV | Lindsey, Gregg | 2007-06-27 |
| KD0BBA | Laing, Dale R | 2017-04-07 |
| KD0BJV | Besocke, Mark R | 2017-05-31 |
| KD0BTA | Huber, Seth C | 2007-10-09 |
| KD0BTB | Huber, Aaron M | 2007-10-09 |
| KD0CNA | Gatrell, Cyrus B | 2018-10-25 |
| KD0CQG | Bloss III, Warren N | 2017-12-18 |
| KD0DQR | Oliver, George B | 2018-01-20 |
| KD0EKV | Cook, Jean M | 2018-04-09 |
| KD0EKW | Grahn, Melanie D | 2018-04-09 |
| KD0EKX | Grahn, John C | 2018-04-09 |
| KD0EUH | Cartwright, Boston S | 2018-06-13 |
| KD0FBR | OWENS, WANDA L | 2008-08-28 |
| KD0GDG | Austin, Brandon T | 2018-12-29 |
| KD0GRA | Walentosky, Sue E | 2009-02-26 |
| KD0IBE | KLAICH, GLEN A | 2019-04-23 |
| KD0JOH | PEARSON, PAMELA K | 2009-12-01 |
| KD0KPE | Mosal, Jeff A | 2020-03-19 |
| KD0KWL | COFER, DAWN M | 2010-03-23 |
| KD0MQZ | Gareis, David P | 2020-07-23 |
| KD0NDH | Staples, Norman D | 2010-11-29 |
| KD0NVK | Vale, Sharon L | 2011-03-10 |
| KD0PEN | IANNONE, CHRIS J | 2011-07-20 |
| KD0PEO | IANNONE, WESTON J | 2011-07-20 |
| KD0PEP | SHREFFLER, COLIN L | 2021-07-31 |
| KD0PER | WIBBENS, MARIO A | 2011-07-20 |
| KD0RDF | MORGANTI, BRETT A | 2012-03-02 |
| KD0RNH | MEEK, JEFFREY S | 2012-04-09 |
