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 |
|---|---|---|
| N3BZJ | HORTON, PAMELA A | 2012-04-10 |
| N3CNS | Lundholm Jr, Joseph G | 2013-12-28 |
| N3DCZ | HOFF, ROBERT S | 2007-12-14 |
| N3ENT | REGGIA, DANIEL L | 2020-07-21 |
| N3FJJ | DE JONGE, ROEL J | 2018-04-17 |
| N3HTB | YOUNKINS, RAYMOND B | 2010-05-07 |
| N3HVC | SIMON, GERALD | 2020-02-22 |
| N3JER | ROYER, DAVID E | 2021-03-10 |
| N3JUV | LEES, ANN L | 2011-11-16 |
| N3KDK | SHAW, MARK A | 2021-07-27 |
| N3KTV | Horton, James E | 2013-05-15 |
| N3LJL | DE JONGE, AGATHA E | 2011-10-26 |
| | ||
| N3MRF | MOSES, TIMOTHY M | 2012-12-29 |
| N3NFS | Reinhold, Eric A | 2023-02-22 |
| N3QEO | STATEN, STANLEY S | 2013-07-16 |
| N3QPJ | STAFFORD, ROBERT K | 2013-09-24 |
| N3RFD | CLAUSON, ANNETTE L | 2013-10-17 |
| N3SRW | WEST, BRYAN J | 2004-04-28 |
| N3TCU | Anderson, Thomas F | 2014-07-08 |
| N3TOD | SOKOLOV, IGOR S | 2014-09-11 |
| N3USN | WALLIS, EDMUND G | 2015-01-23 |
| N3VLN | Hanlon, James | 2015-06-09 |
| N3VOL | Galiszuski, Laura A | 2005-03-04 |
| N3VRF | GREENE, CYNTHIA T | 2015-04-14 |
| N3WLI | LAVILLA, BOB E | 2005-10-06 |
| N3WTN | De Chalus, Reginel H | 2007-07-12 |
| N3XOQ | Christopher, Maxwell G | 2006-04-22 |
| N3XPI | SMITH, NORMAN R | 2006-03-09 |
| N3XYP | FRANK, NATHANIEL D | 2006-05-30 |
| N3YDT | RANDALL, JAMES F | 2006-09-28 |
| N3YIC | DeWOLFE, WENDY J | 2018-06-05 |
| N3ZGU | RYAN, LOIS A | 2007-02-20 |
| N4SSM | HILTZ, JOHN A | 2018-02-28 |
| N8IAY | WATT, DOUGLAS A | 2020-02-13 |
| N8IVN | KRONENBERG, DENNIS L | 2019-01-31 |
| NK3I | LYONS, ROBERT B | 2016-08-16 |
| NS3R | COHEN, BRUCE H | 2018-05-22 |
| W3CSO | WILDERMUTH, WILLIAM F | 2014-10-01 |
| W3DBG | KENNEDY, JAMES P | 2019-04-30 |
| W3GEA | ROBERTS, JOHN W | 2007-12-18 |
| W3LNR | MARZETTA, LOUIS A | 2007-08-02 |
| W3OTC | CARPENTER, ROBERT J | 2008-06-18 |
| W3QBC | HOOK, WILLIAM A | 2014-11-24 |
| W4NVW | NADELL, AVROM P | 2008-10-28 |
| W8HJN | Harris, Jack R | 2017-03-15 |
| WA0LQT | HERRON, RAYMOND D | 2016-04-19 |
| WA1KQP | DOBSON, RICHARD N | 2019-03-08 |
| WA1LWS | GLISTA, HANS | 2006-11-10 |
| WA1SXW | Colton, Rodney A | 2014-05-08 |
| WA2AXF | JENTSCH III, MAX R | 2015-01-14 |
| WA2DCP | SHARKEY, DONALD C | 2021-02-22 |
| WA2GXR | Schoen, David M | 2016-10-25 |
| WA3HIC | BAGGOTT JR, JAMES W | 2015-01-21 |
| WA3RIJ | VAN WAGNER III, MARSHALL B | 2023-03-30 |
| WA3RMZ | JARO, MATTHEW A | 2014-08-15 |
| WA3VBR | Miller, Donald B | 2014-09-03 |
| WA3YOO | Montgomery County MD Aux Comm Svc | 2023-02-03 |
| WA4LTQ | MAUL, DAVID E | 2018-04-06 |
| WB2U | Nardo, Victor A | 2017-12-28 |
| WB3HAL | LINK, RICHARD W | 2017-01-11 |
| WB3LHT | THOMAS, MICHAEL P | 2012-03-27 |
| WB6MPQ | BASSETT, JEFFREY T | 2016-11-14 |
| WB8GXD | MOLITORS, ROBERT W | 2021-01-05 |
