The Federal Communications Commission (FCC) has granted a total of 772 licenses and call signs in the category of Amateur license in Baltimore, 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 |
|---|---|---|
| N3MPO | FRANK, JOHN C | 2012-05-01 |
| N3MYV | MAZAN, WAYNE T | 2013-01-31 |
| N3NTR | FENWICK III, ALEXANDER S | 2013-05-07 |
| N3OHW | O CONNOR, THOMAS W | 2012-12-05 |
| N3OHX | TOLBERT, WILLIAM E | 2012-12-10 |
| N3OMX | HAMPTON, LEONARD L | 2023-03-03 |
| N3OPM | SULLIVAN JR, DANIEL F | 2013-01-07 |
| N3OPZ | DOWNS SR, GARY G | 2013-01-17 |
| N3OQD | HAYLOE, CHARLES P | 2013-01-01 |
| N3PAF | DUDEK, PAUL E | 2013-05-17 |
| N3PDS | PAYTON, CHARLES R | 2013-04-12 |
| N3POR | STONE, JOHN P | 2013-04-03 |
| | ||
| N3PWG | EVANS, JAMES C | 2013-06-04 |
| N3PZO | HINKLEMAN, PAUL J | 2013-06-06 |
| N3PZU | REVILLE, NANCY M | 2013-06-07 |
| N3QAE | RUSSELL, JOSEPH M | 2015-04-03 |
| N3QEG | PFETZING, BRODERICK W | 2013-11-28 |
| N3QGE | HANSON, ERIC S | 2004-03-19 |
| N3QKL | BECRAFT SR, ROBERT L | 2013-09-30 |
| N3QLJ | DICKES, GUY A | 2013-08-13 |
| N3QPU | DOYLE, DAMIAN M | 2005-03-31 |
| N3RAT | HENNINGS, ELDON D | 2013-10-18 |
| N3REI | GREENSFELDER JR, CHARLES E | 2014-02-04 |
| N3RFA | BINDER, LORI A | 2014-11-04 |
| N3RGE | HARRIS, JASON G | 2015-08-01 |
| N3RIO | Pawelczyk, Leo M | 2013-10-22 |
| N3RKB | CHITTENDEN, PATRICK J | 2013-10-31 |
| N3ROR | MATIN, LAMONT M | 2013-11-27 |
| N3RQN | PENDERGRAPH, JAMES M | 2004-03-23 |
| N3RSK | SIMMONS, DAVID L | 2004-01-14 |
| N3RXC | MACK, WARREN S | 2014-08-20 |
| N3SFW | GARDNER, FAYE K | 2014-05-28 |
| N3SGA | MACKES, DAVID V | 2014-06-04 |
| N3SLR | BACHMANN, RICHARD A | 2014-06-11 |
| N3SOD | NEEDER, MARTIN A | 2015-01-07 |
| N3SOE | Petit, David A | 2015-06-23 |
| N3SOG | LAZARUS, MARTIN S | 2004-04-30 |
| N3STX | WRZESIEN SR, RICHARD S | 2014-06-04 |
| N3TCY | RIX, CLYDE L | 2014-06-03 |
| N3TDA | GOLDRICK, ROBERT L | 2014-07-31 |
| N3TEI | JOHNSON, ROY J | 2004-08-27 |
| N3TSA | LEE, DENNIS R | 2015-04-27 |
| N3TVO | EDER, CHARLES J | 2014-10-08 |
| N3TZD | MICHAEL JR, WILLIAM D | 2014-09-22 |
| N3UEM | HARDY, MICHAEL E | 2004-11-30 |
| N3UJN | MARSHALL, ROBERT H | 2015-01-06 |
| N3UTC | HORVATH JR, BELA | 2015-02-27 |
| N3VBF | BUTTERBAUGH, THOMAS E | 2005-01-19 |
| N3VBQ | WOOD, JAMES O | 2006-07-06 |
| N3VDN | SIMMONS, ROBERT L | 2015-03-12 |
| N3VEJ | WITTICH, DOUGLAS G | 2015-02-09 |
| N3VEU | HENNINGS, JANET M | 2015-03-10 |
| N3VMF | WITTHAUER III, HENRY J | 2015-02-24 |
| N3VVH | HAVRILLA, ALAN N | 2005-05-06 |
| N3WAR | DEMME, PAUL E | 2017-08-30 |
| N3WCL | LANE, MICHAEL E | 2015-09-29 |
| N3WDU | SADLER, GEORGE W | 2005-10-06 |
| N3WGK | SHIPWAY, MICHAEL P | 2016-09-27 |
| N3WHK | HOGAN, RICHARD A | 2006-01-07 |
| N3WJH | Savage, Daniel A | 2015-09-26 |
| N3WKE | SCHAEFER JR, LORENZ W | 2015-10-05 |
| N3XAC | FINK JR, JOHN W | 2016-01-05 |
| N3XHI | MATTHEWS, KENNETH E | 2016-03-29 |
| N3XKK | BINDER, MARJORIE | 2017-07-07 |
| N3XLZ | COLE, MICHAEL B | 2016-08-02 |
| N3XMQ | MOSER, JOHN R | 2006-02-22 |
| N3XWC | DUDROW, LOUIS A | 2006-06-06 |
| N3YBO | BUSNUK, PAUL | 2007-01-16 |
| N3YJU | POMERANTZ, AARON L | 2016-09-21 |
| N3YWG | WEBER SR, SIEGFRIED W F | 2006-12-19 |
| N3YYN | STEMPLE, MICHAEL L | 2007-01-05 |
| N3ZBU | MC KENZIE, CARL F | 2017-02-16 |
| N3ZJB | HINKLE, JAMES W | 2007-03-26 |
| N3ZQL | Hook, Alfred | 2007-05-07 |
| N3ZYP | KREINER JR, THOMAS F | 2017-07-19 |
| N4XAN | TANT, JOHN B | 2020-02-10 |
| N5GWF | FAUST IV, WILLIAM B | 2020-11-05 |
| N5HML | FAUST, LORRAINE Y | 2020-11-05 |
| N5ZOV | KUNZ, ALICIA M | 2023-01-24 |
| N6JH | HINSHAW, JERROLD T | 2021-01-26 |
| N7RZJ | SMITH, PAUL E | 2012-06-08 |
| ND3D | VENANZI, ROBERT L | 2016-01-12 |
| NE3C | KERN, GERALD W | 2016-05-17 |
| NW3J | FULD, ROBERT A | 2019-05-16 |
| W3AJK | SCHRAMM, LAWRENCE P | 2014-08-14 |
| W3BDP | King, Samuel L | 2004-07-09 |
| W3BZB | GILL, ERNEST | 2005-07-07 |
| W3CGT | Mauro, Eugene A | 2017-05-17 |
| W3CYA | Berlin, Fred S | 2015-01-20 |
| W3DOT | GRAVES, WILLARD L | 2015-04-08 |
| W3FWQ | WALLS, ALLEN B | 2014-03-20 |
| W3FYA | Sanders, Douglas J | 2007-03-05 |
| W3GPK | Winter, Frank J | 2005-07-20 |
| W3GQR | THARP, ELLEN E | 2008-07-15 |
| W3GR | HISTORICAL ELECTRONICS MUS ARC INC | 2023-02-18 |
| W3HBD | Baker, James D | 2008-03-17 |
| W3HMO | WOLFE, WAYNE L | 2018-06-13 |
| W3IPM | GALITZER, SIDNEY | 2007-02-08 |
| W3IRP | ENGELHARDT, RICHARD A | 2007-01-30 |
| W3JEH | DISTLER, RONALD D | 2013-06-20 |
