The Federal Communications Commission (FCC) has granted a total of 263 licenses and call signs in the category of Amateur license in Gaithersburg, 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 |
|---|---|---|
| KC3DBX | DeBruyn, Harold F | 2014-06-23 |
| KC3DLX | Kelly, James M | 2014-09-16 |
| KC3DSJ | Mach, Kyle F | 2014-10-30 |
| KC3DUR | Glerum, Lonnie R | 2014-11-07 |
| KC3ESZ | Maldonado, Alexander J | 2015-04-10 |
| KC3FQY | MORON-SUARTZ, RENZO A | 2015-10-06 |
| KC3FR | LYON, HOWARD W | 2012-01-11 |
| KC3FYN | Witherspoon, Ronald W | 2015-11-19 |
| KC3GKA | Peria Samy, Subramanian | 2016-02-09 |
| KC3GUE | Eng, Simon | 2016-03-21 |
| KC3GWY | Bryson, Katie W | 2016-04-08 |
| KC3HDX | Wade, Matthew A | 2016-05-19 |
| | ||
| KC3HEC | Hobson, Jennifer | 2016-05-19 |
| KC3HEG | Quintananieves, Armando | 2016-05-19 |
| KC3HTG | Jurgrau, Scott D | 2016-09-12 |
| KC3HTH | Arneja, Anthony S | 2016-09-12 |
| KC3ICH | Schwartz, Charles M | 2016-11-14 |
| KC3ICI | Doyen, Kristopher B | 2016-11-14 |
| KC3INJ | Avedisian, Nicholas J | 2017-02-07 |
| KC3IUR | BUTLER, IAN P | 2017-03-13 |
| KC3JFI | ESPINA, THOMAS H | 2017-05-15 |
| KC3JML | Babu, Jack D | 2017-07-10 |
| KC3JUY | Babu, Jonathan S | 2017-09-19 |
| KC3JVB | Thomas, Michael D | 2017-09-19 |
| KC3JWA | Goldstein, Burton | 2017-09-26 |
| KC3KAP | Oliveri, Cathy M | 2017-10-23 |
| KC3KFU | Schwarzkopf, Andrew D | 2017-11-13 |
| KC3KLK | Hagovsky, Albert E | 2017-12-11 |
| KC3KLN | Sforza, Paul J | 2017-12-11 |
| KC3KQM | Anthracite, Nancy E | 2018-01-23 |
| KC3KRH | Rundquist, Paul A | 2018-01-29 |
| KC3KRR | PLUMMER, STEVEN | 2018-01-29 |
| KC3KTY | Thanigaivel, Raghav | 2018-02-12 |
| KC3LGH | Gilbert, Charles R | 2018-04-23 |
| KC3LGS | Kebede, Mistre S | 2018-04-24 |
| KC3LLF | Henle, Gregory L | 2018-05-15 |
| KC3LLM | Shaw, Kent E | 2018-05-15 |
| KC3LLO | DOYEN, HELENE H | 2018-05-15 |
| KC3LUG | Shomron, Oren | 2018-07-09 |
| KC3MFO | Duncan, Douglas W | 2018-10-18 |
| KC3MSF | Duffy, Joshua | 2019-01-30 |
| KC3NBC | Lewis, Daniel R | 2019-03-14 |
| KC3NME | Morgans, Edward T | 2019-05-13 |
| KC3NWW | Klosowski, Przemek | 2019-08-09 |
| KC3NXA | Draffen, Nickolas | 2019-08-12 |
| KC3NZO | Mozgovaya, Mia | 2019-09-09 |
| KC3OBX | Robbins IV, Berton A | 2019-09-23 |
| KC3OIA | Cherry, Denise M | 2019-11-12 |
| KC3OIV | HALSEY, MATTHEW | 2019-11-12 |
| KC3OIW | Didden, David | 2019-11-12 |
| KC3OTJ | Cuff, Daniel E | 2020-01-27 |
| KC3PAJ | Bleich, Jessica W | 2020-03-04 |
| KC3PHW | Van Brunt, Nathan A | 2020-06-03 |
| KC3PNV | MCNEELY, MATTHEW | 2020-07-01 |
| KC3PXM | Deitle II, John O | 2020-08-31 |
| KC3QAB | David, Ronald E | 2020-09-14 |
| KC3QFX | Libby, Richard S | 2020-10-13 |
| KC3QHQ | BLACKBURN, JORDAN D | 2020-10-22 |
| KC3RJN | Marfak, Robert J | 2021-03-01 |
| KC3RKL | Garcia, Daniel I | 2021-03-01 |
| KC3RXO | Galbraith, William B | 2021-04-15 |
| KC3RXP | Galbraith, Judith B | 2021-04-15 |
| KC3RYF | Mohammed, Savitri | 2021-04-19 |
| KC3RYG | Sudama, Nikita | 2021-04-19 |
| KC3SCC | Godman, John P | 2021-05-13 |
| KC3SDO | NESPOR, CHRIS | 2021-05-18 |
| KC3SGH | farnsley, Cameron J | 2021-06-07 |
| KC3SHU | Lu, Alexander M | 2021-06-21 |
| KC3SIU | DiFiore, Alec C | 2021-06-28 |
| KC3TBC | Long JR, Richard M | 2021-11-09 |
| KC3TGS | Gu, MILI | 2021-12-20 |
| KC3TRF | Mariani, Nicholas J | 2022-03-14 |
| KC3UEH | Hwang, Ta-Mao | 2022-05-17 |
| KC3UEQ | REISER, DAVID G | 2022-05-17 |
| KC3UGQ | Older, Owen | 2022-05-24 |
| KC3VHA | RACHIS II, GEORGE F | 2022-12-13 |
| KC3VOB | Mittler, Jeff | 2023-02-09 |
| KC4DDJ | WEAVER, THOMAS | 2019-04-16 |
| KC4UXO | JONES, LAROCCA T | 2003-09-09 |
| KC5ISK | POTTER, MICHAEL J | 2015-01-09 |
| KC7PKT | BLACK, PAUL E | 2015-12-31 |
| KC7SGN | RICHMOND, NATHAN P | 2016-06-04 |
| KD3IM | HYNSON, CHARLES E | 2018-01-17 |
| KD3WO | FISCHER, STEPHEN D | 2021-01-29 |
| KD5WL | INGRAM, JOSEPH J | 2007-05-21 |
| KD6CIP | BREEDEN, RANDALL E | 2012-02-14 |
| KD8KZ | RICHLEY, EDWARD A | 2015-11-03 |
| KE3BU | HORWITH, GARY | 2022-03-08 |
| KE5WLO | PETER, JENNIFER K | 2018-09-05 |
| KE6MVA | Nessinger, Thomas S | 2014-08-23 |
| KG4TKA | NASH JR, JAMES R | 2022-04-28 |
| KI4VTB | Hibbits, Justin R | 2007-05-09 |
| KX8I | STRIDER, J WILLIAM | 2017-05-31 |
| KZ3F | HORLICK, JEFFREY | 2020-10-08 |
| N1OXX | FOSTER IV, WALTER H | 2013-07-11 |
| N2TWU | FANELLI, PAUL F | 2012-12-05 |
| N2YSM | KATZ, BRIAN H | 2004-04-01 |
| N3AA | HORWITZ, JEROME H | 2013-10-22 |
| N3AJR | Bowles, Robert E | 2018-04-12 |
| N3BNH | LEHMAN, LEON G | 2015-06-13 |
