The Federal Communications Commission (FCC) has granted a total of 321 licenses and call signs in the category of Amateur license in Columbia, 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 |
|---|---|---|
| AA3WD | Feldmesser, Howard S | 2020-07-31 |
| AA3WG | ARNOLD JR, HASKELL N | 2013-05-29 |
| AB3DD | Blicharz, Henry A | 2013-02-28 |
| AB3WW | McParland, Joseph E | 2014-06-25 |
| AB3XH | ALTSCHULER, BRUCE R | 2016-10-26 |
| AB3XI | Altschuler, Ruth P | 2014-04-07 |
| AF4SR | Wenholz, Brian R | 2009-07-07 |
| AG3P | HOYE, TERRANCE J C | 2014-09-17 |
| AG4TF | Norris, Mark E | 2023-02-14 |
| AH7J | HIU, STEPHEN F | 2015-01-13 |
| K1BZ | Larrabee, David H | 2017-01-04 |
| K3RJJ | HARTONG, GLENN S | 2007-08-21 |
| | ||
| K3TVE | Hubbard, Arthur G | 2014-09-24 |
| K3WWC | STUPP JR, GEORGE B | 2016-03-15 |
| K5MEW | SWENSON JR, HILMER W W | 2017-08-16 |
| KA1DOP | Katz, Edward H | 2015-11-05 |
| KA2KJE | WARE, MARK V | 2016-12-07 |
| KA3BHY | CLAYTON, RODNEY S | 2020-04-13 |
| KA3BRZ | Cuthie, Brian D | 2013-09-24 |
| KA3CZO | GOLDHIRSH, JULIUS | 2004-09-14 |
| KA3DDK | ABERNETHY, LEO C | 2015-04-16 |
| KA3ENO | POLLACK, NELSON V | 2015-10-27 |
| KA3MTI | STEIN, DAVID R | 2015-07-15 |
| KA3WFM | FOSTER, LORETTA J | 2021-03-09 |
| KA3ZZY | LEWIS, FRIENZELLA A | 2012-02-15 |
| KA3ZZZ | LEWIS, ROBERT L | 2012-02-15 |
| KA4AUG | VAJO, VICTOR S | 2014-10-14 |
| KB0QIA | Wilson, Andrew | 2015-03-13 |
| KB0SHI | PROULX, WILLIAM A | 2015-02-13 |
| KB2PXR | COSTELLO, SHANNON E | 2013-07-24 |
| KB3AOT | WILLIAMS, JEAN E | 2013-05-08 |
| KB3APX | BUCK, ROBERT J | 2013-07-08 |
| KB3BF | Fazi, Christian | 2017-08-09 |
| KB3BVP | WONG, WILLIE K | 2017-10-13 |
| KB3BXR | Lockhart, ANITA | 2017-09-07 |
| KB3CAZ | ARCIDIACONO, JOSEPH A | 2017-12-01 |
| KB3CLP | BRINSKO, JOHN M | 2018-02-02 |
| KB3CTS | TAYLOR, DEVIN M | 2008-04-04 |
| KB3DBX | GORDON, EDWARD A | 2018-07-31 |
| KB3DGE | CLAYTON, KIMBERLY A | 2018-10-20 |
| KB3FQ | CHACOS, ALBERT A | 2014-03-06 |
| KB3GUL | Schapiro, Steven M | 2011-10-19 |
| KB3HUN | Schmolze, Peter B | 2023-01-10 |
| KB3IMH | La Verghetta, Robert J | 2012-05-29 |
| KB3JHI | Squibb, Robert E | 2013-02-04 |
| KB3KBV | Tope, Michael A | 2023-04-29 |
| KB3KZJ | SAMPAYO, RAFAEL D | 2014-11-01 |
| KB3LIL | Austin, Kevin R | 2004-07-13 |
| KB3LIT | Borowy, Mark S | 2004-07-19 |
| KB3LMZ | Augustis, Michael E | 2004-10-04 |
| KB3LNW | Lambert, Michael A | 2015-01-03 |
| KB3LVZ | Harmon, Dalton C | 2005-01-18 |
| KB3LWA | Binebine, Abdessadek | 2005-01-18 |
| KB3LZC | Braun, Joel M | 2005-02-24 |
| KB3LZD | Kuo, Susan | 2005-02-24 |
| KB3MQX | Steffens, Thomas J | 2015-11-18 |
| KB3NBB | Greenwood, Alice K | 2006-01-23 |
| KB3NCQ | Drazkowski, Joshua J | 2006-01-31 |
| KB3NII | Davis, Craig L | 2006-03-27 |
| KB3NXY | Wood, Derek A | 2006-08-21 |
| KB3OOP | FORTON, HUGH J | 2016-12-05 |
| KB3OOV | Chiu, Mary C | 2007-02-20 |
| KB3OOZ | Cressman, Luther P | 2007-02-20 |
| KB3OPB | Totaro, Steven G | 2018-07-31 |
| KB3PJR | BERRY, THOMAS A | 2007-06-28 |
| KB3PMG | Althouse, Bryan L | 2007-07-23 |
| KB3PNS | Johnson, Garth O | 2007-08-02 |
| KB3PSD | Gold, Robert E | 2017-07-29 |
| KB3PUO | Green, Katherine H | 2018-01-05 |
| KB3QEX | GILBERT, GEOFFREY T | 2018-02-03 |
| KB3QGN | Zaverl, Eric M | 2008-01-22 |
| KB3QOZ | Facchiano, Nora R | 2017-12-19 |
| KB3QPU | Merluzzi III, Richard A | 2017-12-27 |
| KB3RAA | UPHOFF, LINDA R | 2018-01-16 |
| KB3RRJ | Buczkowski, Steven L | 2018-09-12 |
| KB3SBN | YOZWIAK, ADAM W | 2008-12-02 |
| KB3SBU | KINCANON, ALEXANDER A | 2008-12-08 |
| KB3SXX | Diorio, Robert D | 2009-05-18 |
| KB3TVR | Stone, Theodore E | 2019-10-22 |
| KB3UHA | WHETSTONE, CHARLES J | 2010-04-06 |
| KB3VCV | Messenger, Scribner A | 2020-06-25 |
| KB3VCW | Stephens, George F | 2020-09-01 |
| KB3VJB | Messenger, Cristin R | 2020-09-11 |
| KB3VJD | Burdette, Duncan C | 2020-08-29 |
| KB3VKS | Rigos, Stephen S | 2020-11-04 |
| KB3VPA | MCGARITY, SARA A | 2020-12-03 |
| KB3VUE | Foerster, Scott E | 2021-03-05 |
| KB3VUH | Krimchansky, Elliott | 2011-03-28 |
| KB3VUL | DesPortes, Joshua J | 2011-03-28 |
| KB3VWW | Chipman, Matthew P | 2011-04-18 |
| KB3WCM | HOWARD, GEOFFREY S | 2011-06-09 |
| KB3WGL | Goltry, Eric J | 2011-07-18 |
| KB3WGR | Michaelis, Christopher H | 2021-08-12 |
| KB3WHU | Allread, Benjamin S | 2011-08-08 |
| KB3WJG | Richter, Kristofor D | 2011-08-15 |
| KB3WTX | MIKOLYSKI, SCOTT L | 2011-12-05 |
| KB3WZL | Urbany Jr, Edward C | 2012-01-23 |
| KB3WZN | Woodard, Laura N | 2012-01-23 |
| KB3ZLP | Wolf, Steven J | 2012-11-21 |
| KB3ZQD | Welch, Benjamin | 2022-12-30 |
