The Federal Communications Commission (FCC) has granted a total of 321 licenses and call signs in the category of Amateur license in Columbia, 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 |
|---|---|---|
| NZ3P | MANWILLER, DALE S | 2020-03-05 |
| W3BXS | KUESPERT, EDWARD F | 2015-06-09 |
| W3EAO | WERNER, WILLIAM F | 2014-04-28 |
| W3HSI | COMNENOI, GEORGE A | 2014-03-07 |
| W3IMZ | FISHER, DALE J | 2007-05-11 |
| W3WWV | SOLOMON, NATHANIEL F | 2006-10-12 |
| W3YYE | OUSBORNE, LOUIS G | 2014-01-15 |
| W3ZKI | Moore, Graham W | 2007-01-30 |
| WA3CUE | KOMMERS, RICHARD W | 2022-08-31 |
| WA3EBE | FRYBERGER, THEODORE K | 2016-01-21 |
| WA3JTX | POLING, WILLIAM R | 2013-12-27 |
| WA3PLF | VERVEN, DAVID M | 2017-06-23 |
| WA3TMU | WEBER, RICHARD R | 2004-01-02 |
| WA3YWQ | CURTIS, RALPH A | 2014-08-05 |
| WA3ZQZ | POWELL, HUGH W | 2014-08-05 |
| WB2CYX | FREEDMAN, DANIEL J | 2018-02-09 |
| WB3HOL | SCHELL, ROBERT W | 2019-06-05 |
| WB6BEZ | JONES, STEVEN H | 2014-07-15 |
| WB7WMJ | PATTON, LESLIE H | 2007-03-28 |
| WP4LAM | SOLER, JAVIER A | 2013-11-14 |
| WV3D | CRAVEN, KEVIN P | 2022-10-18 |
