The Federal Communications Commission (FCC) has granted a total of 56 licenses and call signs in the category of Amateur license in Greenbelt, 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 |
|---|---|---|
| AA8C | GARDNER JR, GLEN E | 2016-02-20 |
| AB3JU | Smith, Madison R | 2019-06-19 |
| AC3DD | Gjesvold, Evan J | 2018-06-26 |
| KA3EXB | ADAMS III, KARL L | 2005-05-13 |
| KB3DFD | LEE, EUGENE H | 2008-09-10 |
| KB3EW | BEERS, ROBERT F | 2015-02-28 |
| KB3HJF | Weatherford, David E | 2022-03-23 |
| KB3HWC | Weatherford, Rebecca L | 2022-03-23 |
| KB3JCM | Cochran, Robert L | 2012-11-20 |
| KB3JSA | Alford, Amy L | 2013-05-15 |
| KB3LLA | Silberman, Kenneth A | 2014-05-28 |
| KB3MLM | Solomon, Aaron C | 2015-07-09 |
| | ||
| KB3NAB | ALEXANDER, DAVID H | 2015-10-17 |
| KB3PDY | Holland, Willliam G | 2007-05-14 |
| KB3QZW | GRUSZCZINSKI, DANA M | 2008-04-14 |
| KB3RBG | Kershaw, Trevor I | 2008-04-21 |
| KB3SWD | Fishbeck, Thomas G | 2019-04-30 |
| KB3UZS | Chesnes, Michael J | 2020-09-03 |
| KB3YUZ | Nagel, Baron V | 2022-04-05 |
| KB3ZUZ | Groesch, Ahren G | 2013-01-22 |
| KB9PSO | BARNHARDT, JOHN A | 2017-09-06 |
| KC3DJF | Mosley, Aaron M | 2014-08-20 |
| KC3DJN | Haupt, Tracy P | 2014-08-20 |
| KC3FJJ | Hall, Peter F | 2015-08-17 |
| KC3FZW | Cooley, Deborah | 2015-11-23 |
| KC3IPP | Dugard, Kevin W | 2017-02-21 |
| KC3JGI | Markus, Johannes C | 2017-05-22 |
| KC3JUB | Dunlap, Timothy G | 2017-09-18 |
| KC3KTT | Fisher, Kevin D | 2018-02-09 |
| KC3KYR | Timokhin, Andrey | 2018-03-13 |
| KC3LFK | Murray, William A | 2018-04-16 |
| KC3MGW | KRESSLER, LAURA L | 2018-10-25 |
| KC3MJG | Weldon, Anne K | 2018-11-13 |
| KC3PFJ | TAYLOR, DENNIS C | 2020-05-12 |
| KC3POA | Edwards, Tommy D | 2020-07-06 |
| KC3QGP | Brandt, Laura | 2020-10-19 |
| KC3RHH | Doughty III, David C | 2021-02-22 |
| KC3SGU | Anderson Jr., Sean C | 2021-06-14 |
| KC3UVB | Cornett, William P | 2022-09-20 |
| KD4GWK | ERTEM, MEHMET CAN | 2012-09-05 |
| KD8BEO | Lorenz, Kevin S | 2015-03-19 |
| KE6INX | Mielke, Thomas A | 2014-06-05 |
| KG4IHV | Kahn, Daniel A | 2020-03-28 |
| N3IAG | KILROY, LAURIE | 2020-07-14 |
| N3JWT | FOMINAYA III, ANTONIO | 2011-06-25 |
| N3NBR | PAULEY, L RAY | 2012-07-12 |
| N3NCH | WHITMER, LESTER A | 2012-05-02 |
| N3RQS | EARLY, DERRICK A | 2015-08-05 |
| N3UUN | KERR, PETER M | 2005-03-16 |
| N3WKG | STEVENS, RAYMOND A | 2015-11-13 |
| N3ZCF | FOMINAYA, CHRISTOPHER A | 2007-03-19 |
| WA3JAL | WATERS, JOHN P | 2014-02-04 |
| WA3NAN | GODDARD AMATEUR RADIO CLUB | 2020-01-06 |
| WB3FME | RHOADS, MARK D | 2017-06-06 |
| WB3KXL | BLACK, DAVID M | 2018-01-19 |
| WB5LPN | CRENWELGE, RANDALL N | 2013-06-04 |
