
| Call | Name | City | State | Class | Old Call | Effective Date | Expiration Date | Status |
|---|---|---|---|---|---|---|---|---|
| AG4MC | Warshel, Robert T | Germantown | MD | E | KG6MGE | 04/12/2016 | 04/12/2026 | Active |
| AK4QY | Rose, Douglas M | Germantown | MD | E | 03/05/2012 | 03/05/2022 | Active | |
| K3JMK | Kukla, Matthew J | Germantown | MD | T | KC3TCX | 12/10/2021 | 12/10/2031 | Active |
| K4XMT | SANYAL, ARNAB T | GERMANTOWN | MD | T | KC3NMF | 05/31/2019 | 05/31/2029 | Active |
| K8CRS | SANTISO, CARLOS R | GERMANTOWN | MD | T | KC3BSI | 01/07/2014 | 01/07/2024 | Active |
| KA3NAT | CUMMINS, THOMAS P | Germantown | MD | T | 09/24/2016 | 12/22/2026 | Active | |
| KB3DPK | MARQUETTE, SCOTT J | GERMANTOWN | MD | P | KF4MAG | 03/29/1999 | 03/29/2009 | Cancelled |
| KB3GKV | Grimm, Shawn | Germantown | MD | T | 02/04/2021 | 04/16/2031 | Active | |
| KB3HEA | Eckel, Matthew E | Germantown | MD | G | 08/04/2022 | 08/04/2032 | Active | |
| KB3LGD | Midgley, James S | Germantown | MD | T | 06/14/2004 | 06/14/2014 | Expired | |
| KB3LLX | Greenstone, Jon R | Germantown | MD | G | 07/10/2014 | 09/13/2024 | Active | |
| KB3NJO | Kohler, Daniel N | Germantown | MD | E | N4MFC | 10/20/2005 | 10/20/2015 | Cancelled |
| KB3OLQ | Kennedy, Cleatous W | Germantown | MD | T | 01/22/2007 | 01/22/2017 | Expired | |
| KB3RHK | TRIPATHI, KARTIKEYA | GERMANTOWN | MD | T | 06/09/2008 | 06/09/2018 | Expired | |
| KB3TKK | Carter, Mark R | Germantown | MD | T | 07/06/2019 | 09/21/2029 | Active | |
| KB3TYR | Blaize, Joel | Germantown | MD | T | 02/03/2010 | 02/03/2020 | Expired | |
| KB3YAS | KNOX, THOMAS J | GERMANTOWN | MD | T | 02/06/2012 | 02/06/2022 | Active | |
| KB3YAT | KNOX, FLORENCE W | GERMANTOWN | MD | T | 02/06/2012 | 02/06/2022 | Active | |
| KC3BWF | Holman, Rufus K | Germantown | MD | T | 01/09/2014 | 01/09/2024 | Active | |
| KC3DBT | Yu, Joshua | GERMANTOWN | MD | T | 06/23/2014 | 06/23/2024 | Active | |
| KC3IUU | Morris, Herman D | Germantown | MD | E | 03/13/2017 | 03/13/2027 | Cancelled | |
| KC3MJV | Goldman, Ellen R | Germantown | MD | G | 11/13/2018 | 11/13/2028 | Active | |
| KC3NMB | SANYAL, SUPRATIM | GERMANTOWN | MD | T | 05/13/2019 | 05/13/2029 | Cancelled | |
| KC3NMF | SANYAL, ARNAB T | GERMANTOWN | MD | T | 05/13/2019 | 05/13/2029 | Cancelled | |
| KC3NQZ | Sanyal, Adrita T | Germantown | MD | T | 06/19/2019 | 06/19/2029 | Cancelled | |
| KC3OID | Divilio, Anthony M | Germantown | MD | G | 11/12/2019 | 11/12/2029 | Active | |
| KC3OWO | Montemayor, Benedict S | Germantown | MD | T | 02/18/2020 | 02/18/2030 | Cancelled | |
| KC3PIY | Ruehlmann, DIETRICH | GERMANTOWN | MD | T | 06/08/2020 | 06/08/2030 | Active | |
| KC3PQI | Thompson, Ellen M | Germantown | MD | E | 07/14/2020 | 07/14/2030 | Active | |
| KC3QLO | Hunter, Dariush | Germantown | MD | T | 11/13/2020 | 11/13/2030 | Active | |
| KC3QME | McGuinness PhD, Michele C | Germantown | MD | T | 11/16/2020 | 11/16/2030 | Active | |
| KC3RYO | Schladebach, Dirk | Germantown | MD | G | 04/20/2021 | 04/20/2031 | Active | |
| KC3TCX | Kukla, Matthew J | Germantown | MD | T | 11/22/2021 | 11/22/2031 | Cancelled | |
| KD6BMK | NICOLL, BRIAN K | GERMANTOWN | MD | N | 10/08/1991 | 10/08/2001 | Expired | |
| KF4ZXF | CORBETT, NEIL G | Germantown | MD | E | 05/30/2018 | 08/25/2028 | Active | |
| KF6MTV | Montemayor, Benedict S | Germantown | MD | T | KC3OWO | 03/10/2020 | 03/10/2030 | Active |
| KG6MGE | Warshel, Robert T | Germantown | MD | E | 05/25/2012 | 07/16/2022 | Cancelled | |
| KK4WAD | Bartosz, Elizabeth E | Germantown | MD | T | 12/23/2013 | 12/23/2023 | Active | |
| KR3ZY | Morris, Herman D | Germantown | MD | E | KC3IUU | 04/08/2017 | 04/08/2027 | Active |
| KX4QK | Burman, Nicholas R | Germantown | MD | E | KN4KYR | 03/26/2018 | 03/26/2028 | Active |
| N3DRH | Ossi, John C | Germantown | MD | E | 09/22/2009 | 09/22/2019 | Cancelled | |
| N3GKO | REPINE, WILLIAM K | GERMANTOWN | MD | T | 03/26/2008 | 06/01/2018 | Expired | |
| N3GWL | MORGANSTEIN, DAVID R | GERMANTOWN | MD | A | 08/23/2017 | 11/13/2027 | Active | |
| N3IDF | MEREWITZ, JAMES E | GERMANTOWN | MD | G | KA3VSI | 04/24/2001 | 07/09/2011 | Expired |
| N3KHC | PITTS, GREGORY C | Damascus | MD | G | 08/11/2021 | 08/20/2031 | Active | |
| N3TDJ | HEINEMANN, GARY C | Germantown | MD | T | 06/17/2004 | 08/18/2014 | Expired | |
| N4MFC | KOHLER, DANIEL N | GERMANTOWN | MD | G | 10/20/2005 | 10/20/2015 | Cancelled | |
| N5VSR | COOPER, LAWRENCE F | GERMANTOWN | MD | T | 11/16/2012 | 11/16/2022 | Active | |
| W1XMT | SANYAL, SUPRATIM | GERMANTOWN | MD | T | KC3NMB | 05/31/2019 | 05/31/2029 | Active |
| W3XMT | Sanyal, Adrita T | Germantown | MD | T | KC3NQZ | 07/16/2019 | 07/16/2029 | Active |
| W7RAL | LORD-WILKINSON, RANDALL A | Germantown | MD | E | K7RAL | 05/31/2002 | 05/31/2012 | Cancelled |
| W9SAD | WATTERS, ROBERT L | GERMANTOWN | MD | A | KB8VC | 04/22/2006 | 06/07/2016 | Expired |
| WA3GZT | Knapp, Barbara B | Germantown | MD | A | 07/29/2014 | 10/18/2024 | Active | |
| WA3UHZ | Ossi, John | Germantown | MD | E | N3DRH | 02/04/2017 | 02/04/2027 | Active |
| WB3BRF | WOJCIK, JOHN P | Germantown | MD | A | 03/25/2014 | 05/24/2024 | Active | |
| WB8OIF | OTT, ROBERT D | Germantown | MD | A | 11/07/2015 | 11/30/2025 | Active | |
| WP4DFC | ESCABI JR, HIRAM | GERMANTOWN | MD | T | 07/24/2012 | 10/20/2022 | Active |