The Federal Communications Commission (FCC) has granted a total of 80 licenses and call signs in the category of Amateur license in Marathon, Florida. 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 |
|---|---|---|
| AB4IE | HEESCHEN, DAVID S | 2007-12-20 |
| AF4VY | OPERCHAL, MARY ELLEN | 2022-12-06 |
| AF4VZ | OPERCHAL, THOMAS | 2022-12-10 |
| AI4PF | Wade, William E | 2013-10-22 |
| KA3URU | YOUNG, ROBERT A | 2014-09-12 |
| KB0EPE | FAHEY, WALTER J | 2020-03-17 |
| KB2QYA | Blaszcak, Donna L | 2016-01-30 |
| KB4JEV | IRWIN, JOYCE | 2004-10-15 |
| KB4JFU | IRWIN, PETER M | 2004-10-15 |
| KC0QNK | CAMPBELL, MICHAEL B | 2013-12-04 |
| KC2JBT | O'MALLEY, JAN C | 2022-01-12 |
| KC2MVZ | BARCLAY, ROBERT N | 2014-04-23 |
| | ||
| KC9UQJ | GRAHAM, CRAIG A | 2011-08-22 |
| KD4BJM | WORTHINGTON JR, EDWARD P | 2021-07-31 |
| KD4BJN | SMITH, HARRY E | 2011-03-29 |
| KD4BJP | SMITH, BARRIE S | 2011-03-29 |
| KE4IBL | ROGERS, PATRICK A | 2013-09-17 |
| KE5PXB | Leftwich, Hal W | 2017-05-11 |
| KF4DUF | MC DOWELL, PAULA R | 2005-07-20 |
| KF4EZA | STRENGER, PHILIP J | 2005-08-16 |
| KF4GRT | GREEN, MICHAEL D | 2015-12-22 |
| KF4GRW | ACKROYD, MARY C | 2006-07-18 |
| KF4TDE | ALVAREZ, FRANKLYN | 2007-04-26 |
| KF4TRG | Brown, Martha E | 2017-05-24 |
| KF6YEC | PATTERSON, NANCY D | 2009-06-25 |
| KG4DQH | MAYNARD, ROGER E | 2019-05-30 |
| KG4MUE | BECK, BRUCE A | 2011-03-11 |
| KG4OLA | Miller, Dannie E | 2011-06-02 |
| KG4RUP | VEDROS, LOUIS A | 2012-03-27 |
| KG6ELB | O Connor, James M | 2020-11-21 |
| KI4HAF | Operchal, David K | 2014-07-29 |
| KI4KDO | WHITAKER, JERRY D | 2005-05-10 |
| KI4LOL | Schneider, William P | 2015-08-18 |
| KI4LUU | MATHEWS, WILLIAM L | 2015-07-09 |
| KI4RPI | BRUNO, LAWRENCE J | 2006-10-10 |
| KI4SCC | BROWN, KEVIN D | 2016-09-08 |
| KI4SL | Gray Jr, Gordon L | 2004-05-24 |
| KJ4EJT | REID, KELLY J | 2008-05-22 |
| KJ4JIP | BATTAGLIA, LAWRENCE | 2009-02-11 |
| KJ4NZZ | Zedalis, Peter W | 2009-08-06 |
| KJ4OAA | Zedalis, Renate S | 2009-08-06 |
| KJ4SHE | BELL, JOHN D | 2020-02-25 |
| KJ4VBV | COLLINS, BRENDA C | 2020-03-06 |
| KJ6KFC | Casey, Thomas M | 2020-06-05 |
| KK4GBA | KRUG, STEVEN | 2012-01-11 |
| KK4GRV | AGAR, LYLE R | 2012-02-10 |
| KK4ISD | Maison, Robert C | 2012-04-20 |
| KK4MRU | RICHARD, SLATON A | 2012-11-16 |
| KK4MVM | Davis Schiebel, Linda C | 2022-09-17 |
| KK4ZCA | CHESLER, RICHARD B | 2014-03-10 |
| KM4SIX | Davis, Harold J | 2016-03-16 |
| KN4CNH | PETERSEN JR, MICHAEL N | 2017-04-11 |
| KN4GTD | Roberts, Ted J | 2017-10-19 |
| KN4MDU | WORTHINGTON III, EDWARD P | 2018-05-09 |
| KN4NHF | Gaukel, Barry J | 2018-06-19 |
| KN4OIV | Martinez, Rafael | 2018-08-10 |
| KN4SSX | KYNAST, SUSANNE S | 2019-02-28 |
| KN4STC | GYOKERES, JODY C | 2019-02-28 |
| KO4BAL | SYMPSON, KATHRYN B | 2020-01-15 |
| KO4BAM | SYMPSON, WILLIAM R | 2020-01-15 |
| KO4CQZ | HOLDINGA, ARJEN F | 2020-03-16 |
| KO4GE | SNOBERGER, PHILIP H | 2011-05-24 |
| KO4WPD | MILAK, WILLIAM E | 2022-02-09 |
| KQ4EIH | Nelson, Bruce R | 2022-11-11 |
| KV4WK | Derbyshire, Alan C | 2014-03-19 |
| N3EDW | KEITH, HARRY H | 2015-06-23 |
| N3FNY | KEITH, MALINDA P | 2017-11-29 |
| N3MYU | BECK, LAURIE M | 2022-07-14 |
| N4CYE | MARILL, EDGARDO J | 2011-05-14 |
| N4CZP | MARILL, DAISY P | 2005-02-19 |
| N4KGR | Yeider, Tim O | 2018-01-17 |
| N8ZPD | BURLEY, JACK L | 2013-04-16 |
| N9VZZ | SLAGER, CLAUDE L | 2004-03-17 |
| W2EWE | GASKILL, JAMES L | 2017-10-06 |
| W4SAX | WALDORF JR, EDWARD T | 2016-11-16 |
| W9QEZ | PETTIGREW, JOHN R | 2010-06-02 |
| WA1ATW | SIMMONS, ALLEN L | 2016-12-16 |
| WB1FXX | GERACI JR, FRANCIS R | 2012-09-08 |
| WB9IHZ | TARR, RICHARD C | 2015-12-22 |
| WR1M | BRENNER, WAYNE E | 2011-03-11 |
