
| Call | Name | City | State | Class | Old Call | Effective Date | Expiration Date | Status |
|---|---|---|---|---|---|---|---|---|
| AA3ZB | Schell, John H | Frederick | MD | E | KB3HJW | 12/31/2001 | 12/31/2011 | Cancelled |
| AB3EE | Cole, James M | Frederick | MD | E | 10/02/2006 | 10/02/2016 | Cancelled | |
| AB3KB | Morrar, Sam | Frederick | MD | E | 10/30/2009 | 10/30/2019 | Expired | |
| AB3NL | Ashby, Bernard E | Frederick | MD | E | KB3VPN | 02/14/2011 | 02/14/2021 | Active |
| AB3NN | WEISS, DAVID M | FREDERICK | MD | E | KF4OIY | 11/16/2016 | 01/14/2027 | Active |
| AB3WX | Wiltberger, Johnathan W | Frederick | MD | E | KF7MBD | 09/23/2010 | 09/23/2020 | Cancelled |
| AB3YX | Insinna, Ezio M | Frederick | MD | E | 04/01/2016 | 04/01/2026 | Cancelled | |
| AC2LF | McKinney, Nicholas D | Frederick | MD | E | KB3RRM | 07/13/2018 | 09/22/2028 | Active |
| AC3EW | WALKER, MARK C | Frederick | MD | E | AF4PZ | 07/19/2019 | 10/02/2029 | Active |
| AC3LV | Vann IV, Livingston | Frederick | MD | E | KC3RRB | 05/04/2021 | 05/04/2031 | Active |
| AE3M | THOMAS, JOHN S | Frederick | MD | E | 04/01/2015 | 04/01/2025 | Active | |
| AF4PZ | WALKER, MARK C | Frederick | MD | E | WL7O | 07/19/2019 | 10/02/2029 | Cancelled |
| AI3H | HOFE, MICHAEL E | Frederick | MD | E | WB3DVY | 03/20/2020 | 06/17/2030 | Active |
| K0JXN | Delcambre, Steven J | Frederick | MD | E | KF0DVN | 03/16/2021 | 03/16/2031 | Active |
| K3DUH | Sharon K Dobson Memorial Club | Glyndon | MD | W3DUH | 02/14/2020 | 02/14/2030 | Active | |
| K3EK | Insinna, Ezio M | Frederick | MD | E | AB3YX | 09/02/2016 | 09/02/2026 | Active |
| K3FDX | MEESE JR, GEORGE E | Frederick | MD | G | KB3EVJ | 02/12/2021 | 04/27/2031 | Active |
| K4FJG | GRAY, F JAMES | Frederick | MD | G | K1FJG | 02/15/2003 | 02/15/2013 | Expired |
| K6MDA | ADAMS, M DEWAYNE | FREDERICK | MD | G | KG6WDN | 10/29/2016 | 11/25/2026 | Active |
| K8UWU | Brunner, Christopher W | Frederick | MD | G | KC3TUC | 04/12/2022 | 04/12/2032 | Active |
| KA3CEA | APPS, GRANT L | FREDERICK | MD | G | 08/10/2016 | 10/17/2026 | Active | |
| KA3IMP | KING, RAY D | FREDERICK | MD | G | 12/21/2006 | 03/20/2017 | Cancelled | |
| KA3IRX | PHEBUS, JOANNE | FREDERICK | MD | G | 11/24/1999 | 12/19/2009 | Expired | |
| KA3IVK | PHEBUS, MARK G | FREDERICK | MD | N | 09/23/1999 | 12/19/2009 | Expired | |
| KA3JDS | STONE, CHRISTOPHER I | FREDERICK | MD | N | 01/18/1994 | 01/18/2004 | Expired | |
| KA3LVY | Higgins, Sue | FREDERICK | MD | G | 08/27/2004 | 09/06/2014 | Expired | |
| KA3LVZ | YONETZ JR, GERALD C | FREDERICK | MD | T | 11/12/2008 | 02/04/2019 | Expired | |
| KA3NLF | THOMAS JR, CARL C | FREDERICK | MD | T | 04/04/2017 | 05/08/2027 | Active | |
| KA3PCA | HARLEY JR, JOHN R | FREDERICK | MD | T | 04/11/2016 | 04/23/2026 | Active | |
| KA3RKJ | DEGRANGE, MICHAEL L | FREDERICK | MD | N | 12/15/2016 | 02/07/2027 | Active | |
| KA3SLE | BURTNER, MICHAEL L | FREDERICK | MD | P | 06/12/1990 | 06/12/2000 | Expired | |
| KA3USB | BEALL, JOHN W | Frederick | MD | G | 10/23/2019 | 10/23/2029 | Active | |
| KA3VRG | GAGE, ROBERT F | FREDERICK | MD | E | 02/11/2020 | 04/10/2030 | Active | |
| KB3BCG | MC NANEY, EDWARD T | Frederick | MD | G | 04/13/2004 | 06/14/2014 | Expired | |
| KB3BMB | CHRISTIAN HOME EDUCATORS OF MID MARYLAND ARC | FREDERICK | MD | 12/06/1995 | 12/06/2005 | Expired | ||
| KB3DGK | MANNING JR, BOBBY J | Frederick | MD | E | 06/07/2019 | 06/07/2029 | Active | |
| KB3DYZ | Hertig-Urban, MARIANNE R | FREDERICK | MD | T | 06/21/2019 | 06/21/2029 | Active | |
| KB3FIO | Fishman, Jeffrey R | Frederick | MD | E | 07/21/2020 | 08/01/2030 | Active | |
| KB3FRY | Lee, David K | Frederick | MD | T | 10/15/2010 | 11/04/2020 | Expired | |
| KB3GHG | Johnson, Jeffry C | Frederick | MD | G | 07/08/2021 | 07/08/2031 | Active | |
| KB3GML | Davis, Walter K | Frederick | MD | T | 04/24/2001 | 04/24/2011 | Expired | |
| KB3HEQ | Thomson, Robert S | Frederick | MD | T | 12/13/2022 | 12/13/2032 | Active | |
| KB3HJW | Schell, John H | Frederick | MD | E | 12/31/2001 | 12/31/2011 | Cancelled | |
| KB3ISJ | Gussio, Richard P | Frederick | MD | G | 10/25/2002 | 10/25/2012 | Expired | |
| KB3JRH | Kachursky, Robert | Frederick | MD | G | 06/04/2013 | 06/04/2023 | Active | |
| KB3JRJ | Lufkin, David N | Frederick | MD | G | 03/04/2013 | 05/08/2023 | Active | |
| KB3JRL | Lufkin, Daniel H | Frederick | MD | G | 02/12/2013 | 05/08/2023 | Cancelled | |
| KB3NJX | Gregory, Patrick D | Frederick | MD | T | 06/28/2016 | 06/28/2026 | Active | |
| KB3NOD | Gordon, Craig K | Frederick | MD | T | 05/16/2006 | 05/16/2016 | Expired | |
| KB3NQC | Simons, Michael A | Frederick | MD | T | 05/18/2016 | 05/25/2026 | Cancelled | |
| KB3ODN | Langel, Robert B | Frederick | MD | T | 09/21/2016 | 11/02/2026 | Active | |
| KB3PVX | Paskowsky, Peter T | FREDERICK | MD | T | 07/19/2017 | 10/15/2027 | Active | |
| KB3QML | Taylor, Brett | Frederick | MD | G | 03/03/2008 | 03/03/2018 | Expired | |
| KB3RPW | CHAFFEE, MARY W | FREDERICK | MD | T | 08/28/2008 | 08/28/2018 | Cancelled | |
| KB3SFF | Call, John B | Frederick | MD | T | 07/11/2020 | 07/11/2030 | Active | |
| KB3TZN | KACHURSKY, NANCY M | FREDERICK | MD | T | 02/17/2010 | 02/17/2020 | Expired | |
| KB3TZO | KACHURSKY, JONATHAN A | FREDERICK | MD | T | 02/17/2010 | 02/17/2020 | Expired | |
| KB3TZP | KACHURSKY, BETHANY R | FREDERICK | MD | T | 02/17/2010 | 02/17/2020 | Expired | |
| KB3VCT | Ramhoff, Deanna D | Frederick | MD | T | 09/20/2010 | 09/20/2020 | Expired | |
| KB3VPN | Ashby, Bernard E | Frederick | MD | E | 02/14/2011 | 02/14/2021 | Cancelled | |
| KB3WFI | Connor, Edward R | Frederick | MD | T | 04/05/2021 | 06/30/2031 | Active | |
| KB3WNT | GHAFFAR, TEHSIN U | FREDERICK | MD | T | 07/27/2021 | 10/11/2031 | Active | |
| KB3WSD | Lucas, Guilday L | Frederick | MD | T | 11/23/2011 | 11/23/2021 | Active | |
| KC3ARG | Smith Jr, Alton L | Frederick | MD | T | 05/29/2013 | 05/29/2023 | Cancelled | |
| KC3ASR | Gregory, Roberts S | Frederick | MD | T | 06/11/2013 | 06/11/2023 | Active | |
| KC3BOA | SOLOMON, DANIEL E | FREDERICK | MD | E | 11/13/2013 | 11/13/2023 | Cancelled | |
| KC3CAK | Van Dermark, Scott J | Frederick | MD | G | 02/03/2014 | 02/03/2024 | Active | |
| KC3DAP | Pondo II, Kenneth J | FREDERICK | MD | T | 06/16/2014 | 06/16/2024 | Active | |
| KC3DGJ | Smith, Gary W | FREDERICK | MD | T | 07/21/2014 | 07/21/2024 | Cancelled | |
| KC3EYV | Brown, Denzil | Frederick | MD | T | 05/11/2015 | 05/11/2025 | Active | |
| KC3EZA | Brown, Kimberly | Frederick | MD | T | 05/11/2015 | 05/11/2025 | Active | |
| KC3JUX | Meech, James D | Frederick | MD | T | 09/19/2017 | 09/19/2027 | Cancelled | |
| KC3JWK | Vendemia, Martin | Frederick | MD | E | 09/27/2017 | 09/27/2027 | Active | |
| KC3KWL | Ranneberger, Cynthia M | Frederick | MD | T | 02/26/2018 | 02/26/2028 | Active | |
| KC3LCC | MAWDSLEY, JAMES P | FREDERICK | MD | T | 03/29/2018 | 03/29/2028 | Active | |
| KC3LLG | Babcock, Lee H | Frederick | MD | T | 05/15/2018 | 05/15/2028 | Active | |
| KC3LTT | Goebel, Daniel C | FREDERICK | MD | T | 07/09/2018 | 07/09/2028 | Active | |
| KC3MAP | Schmid, Denman | Frederick | MD | T | 09/17/2018 | 09/17/2028 | Active | |
| KC3NAZ | Rixham, John R | Frederick | MD | T | 03/14/2019 | 03/14/2029 | Active | |
| KC3NFR | Ritterbusch, Anna L | Frederick | MD | T | 04/03/2019 | 04/03/2029 | Active | |
| KC3NJR | Vance, William D | Frederick | MD | T | 04/29/2019 | 04/29/2029 | Active | |
| KC3NXF | WALKER, EVELYN A | Frederick | MD | G | KG4EYA | 07/19/2019 | 10/14/2029 | Active |
| KC3OIX | Gemeny, Andrew G | Frederick | MD | T | 11/12/2019 | 11/12/2029 | Cancelled | |
| KC3PPS | Vale, Nikolas G | Frederick | MD | G | 07/13/2020 | 07/13/2030 | Active | |
| KC3RAI | Gardner, Cubby | FREDERICK | MD | T | 01/25/2021 | 01/25/2031 | Active | |
| KC3RRB | Vann IV, Livingston | Frederick | MD | E | 03/25/2021 | 03/25/2031 | Cancelled | |
| KC3SIE | Fallow, Donna L | Frederick | MD | T | 06/22/2021 | 06/22/2031 | Active | |
| KC3TEE | Rohloff, Michael E | Frederick | MD | T | 11/29/2021 | 11/29/2031 | Active | |
| KC3TUC | Brunner, Christopher W | Frederick | MD | G | 03/22/2022 | 03/22/2032 | Cancelled | |
| KC3UUN | Risk, William B | Frederick | MD | G | 09/16/2022 | 09/16/2032 | Active | |
| KC3UUR | Olsen, Peter C | Frederick | MD | G | 09/17/2022 | 09/17/2032 | Active | |
| KD4DJW | POWER, WILLIAM E | FREDERICK | MD | T | 06/14/2011 | 08/01/2021 | Active | |
| KD4DJX | POWER, KAREN A | FREDERICK | MD | T | 06/14/2011 | 08/01/2021 | Active | |
| KE4QNO | PERRY, KRISTOPHER K | Frederick | MD | G | 09/03/2014 | 09/14/2024 | Active | |
| KF4OIY | WEISS, DAVID M | FREDERICK | MD | E | 01/12/2007 | 01/14/2017 | Cancelled | |
| KF4YPN | FERGUSON, GLEN G | Frederick | MD | T | 03/20/2018 | 05/22/2028 | Active | |
| KF7MBD | Wiltberger, Johnathan W | Frederick | MD | E | 09/23/2010 | 09/23/2020 | Cancelled | |
| KG4EYA | WALKER, EVELYN A | Frederick | MD | G | KL7GS | 07/19/2019 | 10/14/2029 | Cancelled |
| KJ3MEE | Meech, James D | Frederick | MD | G | KC3JUX | 10/11/2017 | 10/11/2027 | Active |
| KJ7OI | ISAKSON, JAMES J | FREDERICK | MD | E | 06/30/2016 | 06/30/2026 | Active | |
| KS4II | LORENTZ, WILLIAM R | FREDERICK | MD | A | KE4IBW | 01/24/2014 | 02/22/2024 | Active |
| N0YFG | JORDRE, SHANNON T | Frederick | MD | T | 07/08/2013 | 08/24/2023 | Active | |
| N2NSR | CARPENTER, BRETT J | FREDERICK | MD | T | 06/22/2011 | 08/20/2021 | Active | |
| N3AGM | Bowersox, Orville C | Frederick | MD | A | 02/19/2015 | 02/19/2025 | Active | |
| N3AMF | MC SHERRY JR, JAMES | Frederick | MD | G | 12/03/2019 | 12/03/2029 | Active | |
| N3DCA | Smith, Gary W | FREDERICK | MD | T | KC3DGJ | 09/23/2014 | 09/23/2024 | Active |
| N3DGK | MARTIN, LARRY C | Frederick | MD | T | 12/19/2018 | 02/03/2029 | Active | |
| N3EDH | SOBUS, PAUL G | FREDERICK | MD | G | KA3EFE | 10/22/2020 | 10/22/2030 | Active |
| N3ELF | CRETTI JR, JAMES J | FREDERICK | MD | T | 11/28/2018 | 02/23/2029 | Active | |
| N3GIS | Ritterbusch, Andreas | Frederick | MD | G | N8GIS | 04/25/2014 | 04/25/2024 | Active |
| N3HUB | Hubbell, Paul A | Fredrick | MD | G | N3JIM | 05/25/2016 | 08/11/2026 | Active |
| N3ICZ | NELSON, GENE O | FREDERICK | MD | A | 03/24/2001 | 04/23/2011 | Cancelled | |
| N3JGK | SNYDER, HOWARD R | FREDERICK | MD | T | 02/01/2011 | 04/30/2021 | Active | |
| N3JIM | Hubbell, Paul A | Fredrick | MD | G | KC4QZN | 03/05/2001 | 04/30/2011 | Cancelled |
| N3JP | STUSH, JOHN P | FREDERICK | MD | E | AA3FW | 08/23/2016 | 11/04/2026 | Active |
| N3KLY | ROGERS, ARCHIE E | FREDERICK | MD | T | 06/15/2021 | 09/10/2031 | Active | |
| N3LXU | STULL, FRED D | FREDERICK | MD | T | 03/14/2002 | 03/24/2012 | Expired | |
| N3MWX | LAZZARO, SCOTT M | Frederick | MD | T | KA3YTI | 04/03/2012 | 06/30/2022 | Active |
| N3NJX | HORTON, AARON M | FREDERICK | MD | T | 06/25/2002 | 09/22/2012 | Expired | |
| N3NON | MELDRUM, BRYANT K | FREDERICK | MD | T | 10/12/2022 | 10/27/2032 | Active | |
| N3PXL | SMITH, GARRICK E | FREDERICK | MD | T | 06/14/2013 | 08/24/2023 | Active | |
| N3RDO | Prickett, Irvin W | Frederick | MD | E | 09/25/2003 | 12/21/2013 | Expired | |
| N3TOM | HUGGINS, JOHN W | FREDERICK | MD | T | 09/22/2014 | 12/17/2024 | Active | |
| N3VOH | Cochran, Michael D | Frederick | MD | G | 03/14/2015 | 06/02/2025 | Active | |
| N3VTP | COCHRAN, LYDIA H | Frederick | MD | T | 05/29/2015 | 07/10/2025 | Active | |
| N3YGM | BOYD, LAURENCE M | FREDERICK | MD | T | 10/12/2016 | 11/05/2026 | Active | |
| N3ZTL | Karapetian 446, Warren V | Frederick | MD | T | 09/16/2017 | 09/16/2027 | Active | |
| N8GIS | Ritterbusch, Andreas | Frederick | MD | G | KB9VVD | 03/19/2010 | 03/19/2020 | Cancelled |
| NR3H | HAGBERG, KEVIN L | Frederick | MD | E | AB3QA | 06/12/2012 | 06/12/2022 | Active |
| W2BIG | Smith Jr, Alton L | Frederick | MD | T | KC3ARG | 07/09/2013 | 07/09/2023 | Active |
| W2UZB | OVERS, GEORGE A | FREDERICK | MD | A | 02/12/2004 | 05/03/2014 | Cancelled | |
| W2ZE | RAIDE, MICHAEL R | FREDERICK | MD | E | 08/12/2016 | 11/04/2026 | Cancelled | |
| W2ZM | RAIDE, MICHAEL R | FREDERICK | MD | E | W2ZE | 01/08/2021 | 01/08/2031 | Active |
| W3BFE | Masser Jr, Charles C | Frederick | MD | G | 01/20/2015 | 03/17/2025 | Active | |
| W3EWL | HILL, STANLEY L | FREDERICK | MD | E | 10/31/2019 | 12/19/2029 | Active | |
| W3MMM | HORMAN JR, JAMES W | Frederick | MD | E | KA3JLW | 10/29/2016 | 10/29/2026 | Active |
| W3NOD | Simons, Michael A | Frederick | MD | T | KB3NQC | 06/09/2020 | 06/09/2030 | Active |
| W3QDT | GUYTON, LEO R | FREDERICK | MD | A | 04/27/2004 | 07/14/2014 | Expired | |
| W3UXZ | DRAGER, STEVEN W | FREDERICK | MD | A | WA3UXZ | 10/25/2017 | 12/10/2027 | Active |
| WA2AIS | Wilkes, William V | Frederick | MD | T | KD8VGG | 07/30/2013 | 07/30/2023 | Active |
| WA3KHE | HIGGINS SR, CHARLES C | FREDERICK | MD | G | 08/27/2004 | 09/06/2014 | Expired | |
| WA3KLH | STICKLEY JR, VERNON B | FREDERICK | MD | T | 05/05/2005 | 06/20/2015 | Expired | |
| WA3LHC | MECLER, LEO M | Frederick | MD | A | 03/02/2017 | 05/29/2027 | Active | |
| WA3UKK | WEAVER, RICHARD T | FREDERICK | MD | A | 06/30/1999 | 05/28/2007 | Cancelled | |
| WA3VZL | HEWETSON, JOHN | FREDERICK | MD | G | 07/17/2014 | 07/17/2024 | Active | |
| WA3YIK | GOLDGRABEN, GERALD R | Frederick | MD | G | 01/10/2018 | 04/03/2028 | Active | |
| WA3ZCV | ROBINSON JR, EARL J | FREDERICK | MD | A | 11/18/2016 | 01/24/2027 | Active | |
| WB3BPP | CONKLIN, RICHARD C | FREDERICK | MD | T | 09/13/2006 | 08/07/2016 | Expired | |
| WB3KDS | FRIES, ROBERTA V | FREDERICK | MD | G | 09/21/2016 | 11/04/2026 | Active | |
| WB3KQU | Warnock, Harold O | Frederick | MD | G | 02/27/2018 | 05/12/2028 | Active | |
| WB3LFD | MOSSBURG, HARRY M | FREDERICK | MD | A | 05/15/1996 | 05/15/2006 | Expired | |
| WB5FZI | VESTAL, DANIEL R | Frederick | MD | G | 07/10/2018 | 09/21/2028 | Active | |
| WB8BPU | MARTIN, DEAN A | FREDERICK | MD | G | 03/14/2016 | 06/05/2026 | Active |