The Federal Communications Commission (FCC) has granted a total of 42 licenses and call signs in the category of Amateur license in Crownsville, 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 |
|---|---|---|
| AB3KL | BARNUM, BENJAMIN H | 2013-10-22 |
| AB3UK | Bradley, Charles L | 2014-05-12 |
| K3MRM | KULESZA, FRANCIS J | 2018-05-01 |
| KA3FSH | DAVIS II, RALPH C | 2020-05-07 |
| KA3LBC | KAUFMAN, BERNARD | 2017-09-13 |
| KA3LRP | MACKOWICK, MARIE A | 2016-03-08 |
| KB3CTP | NEILSON, RANDALL K | 2018-04-17 |
| KB3CUJ | DURBECK, ROBERT J | 2018-05-15 |
| KB3CVJ | HASKINS, CHRISTOPHER B | 2018-07-31 |
| KB3JAJ | Browne Jr, William H | 2012-10-31 |
| KB3JMH | Irving, Carol A | 2013-01-31 |
| KB3KXJ | Bailey, John E | 2014-01-24 |
| KB3VHX | Potts Jr, John T | 2010-11-15 |
| KC3BTO | Sprehn, Stephen L | 2013-12-17 |
| KC3COJ | Parrott, Edward N | 2014-04-14 |
| KC3COL | Parrott, Patricia J | 2014-04-14 |
| KC3DVY | Hasser, Nicholas I | 2014-11-14 |
| KC3FRC | Kinch, Samuel D | 2015-10-08 |
| KC3IJP | Brouwer, Lonnie D | 2017-01-09 |
| KC3ILQ | Stainer, Lucia S | 2017-01-25 |
| KC3KFK | Kidder, Ernest S | 2017-11-13 |
| KC3KFO | Stump, Donald N | 2017-11-13 |
| KC3SBY | BRYANT, BRANDON | 2021-05-12 |
| KC3SBZ | BRYANT, MALLORY | 2021-05-12 |
| KC3UQN | CISLO, MATTHEW S | 2022-08-13 |
| KC3VCL | McMahon, Margaret M | 2022-11-15 |
| KC3VTJ | CONRAD, THOMAS K | 2023-03-18 |
| KD8RSG | HOWARD, KELLY C | 2012-02-16 |
| KG4MKP | Anderson, Christopher R | 2021-06-15 |
| KO4CZK | Wellman, Joshua A | 2020-04-08 |
| KU3P | Lahoff, Alan R | 2015-01-20 |
| KX3N | SILARD JR, CON D | 2015-04-16 |
| N3FRS | ALDERMAN, GARY L | 2006-06-17 |
| N3GMK | BEVAN, VICKI L | 2018-04-19 |
| N3HKJ | Hazell, Raymond G | 2019-04-24 |
| N3JWX | STEWART, WILLIAM E | 2022-04-26 |
| N3MGE | WAGNER, THOMAS H | 2023-01-06 |
| N3XXN | Hazell, Betty G | 2016-06-29 |
| N6TCA | MENTLEY, MICHAEL E | 2018-06-01 |
| NR4F | GORUM JR, CHARLES C | 2018-05-01 |
| WA3NAK | BEVAN, MICHAEL T | 2014-09-27 |
| WA3NHK | MACKOWICK, FRANK P | 2017-07-18 |
