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 |
|---|---|---|
| AA3AC | WISE, THOMAS E | 2012-08-30 |
| AB3GA | KOHL, DAVID E | 2017-03-01 |
| AB3SB | DIALLO, AFIDOU | 2023-03-21 |
| AB3UA | Marchese Jr, Robert | 2014-03-26 |
| AB3VN | Kholodov, Mikhail | 2014-09-16 |
| AB3VZ | SRINIVAS, VIJAY K | 2013-06-12 |
| AB3WL | MABRY, KENNETH W | 2015-01-12 |
| AB3XW | HOWARD, LOWELL P | 2015-06-19 |
| AB3YU | Culver, Renee M | 2016-03-07 |
| AB3ZO | Drozdetski, Aleksander V | 2016-07-26 |
| AC3CP | Stevenson, Orlando L | 2018-04-16 |
| AC6O | BROWN, BRUCE A | 2018-11-22 |
| | ||
| AG4PM | STEVENSON, JEFFREY L | 2013-02-08 |
| AJ6BO | Li, Jason J | 2018-02-27 |
| K3EVC | BRINLEY JR, FLOYD J | 2007-03-07 |
| K3EW | BARSKY, PHILLIP | 2023-03-02 |
| K3JJF | Carlson, Warren E | 2004-08-20 |
| K3STN | BROWN, LESTER E | 2014-10-14 |
| K4YRB | LEWIS, BENJAMIN P | 2014-11-01 |
| K7SPT | SMITH, DOYNE E | 2017-05-24 |
| KA3F | CUMMINS JR, EUGENE J | 2014-11-13 |
| KA3FVT | THOMPSON, JUNE | 2018-05-14 |
| KA3INZ | SMITH, GERALD L | 2012-01-04 |
| KA3JZY | SWIFT, THEODORE N | 2006-11-14 |
| KA3NNJ | GOONASEKERAM, RAVI | 2013-06-18 |
| KA3RHG | CHURCH, ROBERT L | 2017-01-06 |
| KA3VYM | BEEDE, CARL W | 2010-01-26 |
| KA3ZKX | HARTMAN, AARON R | 2023-03-21 |
| KB2JG | MASSI, JOSEPH R | 2016-03-03 |
| KB2TP | RUNKO, MILAN E | 2015-04-10 |
| KB3EAH | SPICKLER, BARRY L | 2009-11-19 |
| KB3ECQ | PETER, CYNTHIA L | 2019-07-27 |
| KB3EQB | DRESNER, STEVEN G | 2011-01-07 |
| KB3FHB | Weill, Juan C | 2020-06-09 |
| KB3FID | Utley, Robert J | 2020-05-27 |
| KB3IST | Lawrence, William M | 2012-08-03 |
| KB3IVU | Guilford, Joel A | 2012-10-25 |
| KB3JDC | Jackson, James S | 2014-08-12 |
| KB3JHA | Nahmias, David O | 2023-02-16 |
| KB3JLN | Nahmias, Susan | 2023-02-16 |
| KB3KKA | Fiotes, Chris P | 2013-08-07 |
| KB3KLD | Murphy, Kenneth G | 2013-08-22 |
| KB3KXU | Wong, Benedict D | 2013-12-24 |
| KB3KXX | Hemphill Jr, Robert T | 2004-03-22 |
| KB3KYP | Kundagrami, Nilotpol | 2004-03-29 |
| KB3LFX | Katzdorn, Michael P | 2014-03-20 |
| KB3LYL | Hill, Jeffrey A | 2014-12-02 |
| KB3LZU | Mitch, Michael G | 2015-01-20 |
| KB3MLG | Williams Jr, Lorenzo | 2005-07-13 |
| KB3MLZ | Duncan, Mara C | 2005-07-25 |
| KB3MNQ | Currie, Marc D | 2005-08-10 |
| KB3MNW | SHAKARJI, GEORGE W | 2015-11-23 |
| KB3MPM | Corey, Joseph J | 2015-09-11 |
| KB3NQX | Podlyesnyy, Andriy | 2006-06-12 |
| KB3NSO | Gladhill, Robert L | 2016-04-09 |
| KB3NSS | GUSTIN III, RAY | 2016-06-15 |
| KB3NZH | Lee, Mau En | 2006-09-11 |
| KB3NZI | Glazer, Adam | 2016-08-26 |
| KB3OCZ | Dysart, Mark R | 2016-10-19 |
| KB3ODB | Patasse, Eyabane | 2006-10-27 |
| KB3OLY | Bodjona, Dihessa | 2007-01-22 |
| KB3OSH | Cosor, Brett L | 2017-01-04 |
| KB3PMA | Wirth, Robert C | 2017-05-01 |
| KB3PMD | Robinson, Vicky L | 2007-07-23 |
| KB3QOD | BOBO, DANIEL L | 2008-03-10 |
| KB3TZK | DUBEAU, LOUIS-DOMINIQUE | 2010-02-16 |
| KB3UUL | Purcell, Phillip C | 2020-08-13 |
| KB3VIZ | MARSHALL, DAVID B | 2010-11-18 |
| KB3VOV | PETER, DAVID A | 2021-01-05 |
| KB3VTG | Canlas, Orly B | 2011-03-21 |
| KB3WKR | Pikwong, Pachara | 2011-08-23 |
| KB3WKS | Srithawon, Sarut | 2011-08-23 |
| KB3WUL | ARIAS, MICHELLE C | 2011-12-12 |
| KB3WUT | STEIN, ERIK E | 2011-12-14 |
| KB3YGE | Meanarsa, Doungnapa | 2012-03-13 |
| KB3YKP | O'Callaghan, Christopher H | 2012-03-28 |
| KB3YUN | Yu, Donghai | 2012-05-31 |
| KB3ZTG | Toth, David C | 2012-12-20 |
| KB3ZTW | IVORY, JED C | 2023-03-28 |
| KB3ZUY | Goodwin, Ryan L | 2013-01-22 |
| KB3ZVA | Steward, Michael B | 2013-01-22 |
| KB3ZYW | Outman, Charles R | 2013-02-19 |
| KB3ZYZ | Affeltranger, Jonathan A | 2023-03-14 |
| KB3ZZF | Weiland, Jerome E | 2013-02-19 |
| KC2VIJ | Howson, James M | 2019-04-13 |
| KC3AFC | Hoffman, Micah | 2013-03-21 |
| KC3ARE | Desautels, John C | 2013-05-29 |
| KC3ARS | Marinakis, Gregory J | 2013-05-30 |
| KC3ART | Chung, Stephen A | 2013-05-30 |
| KC3ARU | Chen, Kevin N | 2013-05-30 |
| KC3AXH | KELLETT, RICHARD R | 2013-07-08 |
| KC3BQX | Pishchulin, Andrii | 2013-11-27 |
| KC3BZU | BUSH, ALEXANDER W | 2014-01-30 |
| KC3CFN | MYLES, BRUCE S | 2014-03-10 |
| KC3CGZ | Zimmerman, Scott B | 2014-03-17 |
| KC3CHM | McMurtrey, Adam D | 2014-03-18 |
| KC3CNT | Tucker, Glenn B | 2014-04-14 |
| KC3CQI | Chung, Timothy | 2014-04-21 |
| KC3CSB | Albuquerque, Daniel M | 2014-04-28 |
| KC3DBW | McCarthy, Cullen C | 2014-06-23 |
