The Federal Communications Commission (FCC) has granted a total of 66 licenses and call signs in the category of Amateur license in Waterloo, Illinois. 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 |
|---|---|---|
| AA9UC | WALKER, DAVID D | 2015-11-04 |
| AB9FO | Smith, Richard C | 2021-05-11 |
| AC9VK | Seppi, Stephen T | 2016-06-08 |
| AC9XO | Landgraf, Scott D | 2018-11-29 |
| K9KWL | Gerardi, Louis E | 2008-04-14 |
| KA9CJY | BAKER, VIRGIL W | 2004-09-14 |
| KB9NDQ | Burris, Hugh C | 2016-01-05 |
| KB9QKP | FISCHER, ALEXANDER Y | 2017-06-08 |
| KB9TTG | CARMICKLE, STEPHEN R | 2018-11-08 |
| KB9VIA | Hill, Evan D | 2020-01-07 |
| KB9VUI | DUNLAP, LYNN V | 2020-01-09 |
| KC9FAT | Hargiss, Jeffrey D | 2013-08-26 |
| | ||
| KC9FHM | WEAKLY, RAYMOND A | 2013-12-31 |
| KC9FHR | WHITEHOUSE, BARBARA K | 2013-11-22 |
| KC9FZM | Notheisen, Brad S | 2004-05-03 |
| KC9HOO | Wright, Brian H | 2005-05-03 |
| KC9JCX | BERGMANN, LOUIS A | 2016-01-05 |
| KC9JCY | BERGMANN, DONNA R | 2016-01-05 |
| KC9JLI | KESSLER, JOHN J | 2016-03-02 |
| KC9RAY | Calvert, Richard D | 2009-12-01 |
| KC9RUY | McCANN, JAMES P | 2020-03-18 |
| KC9RUZ | McCANN, KAREN S | 2020-03-18 |
| KC9TQU | Nungesser, Gerald E | 2020-12-03 |
| KC9UEP | Wyrick, Jeff A | 2011-05-03 |
| KC9UJK | Davis, Jeff C | 2021-08-04 |
| KC9WAO | Heusohn, Jeff L | 2012-05-17 |
| KC9WAP | Clements, Brian C | 2012-05-17 |
| KC9WNZ | Musgrave, Gregory R | 2012-09-07 |
| KC9ZYR | Hoeffken, Paul G | 2013-11-19 |
| KD9BQG | JORNS, CHRISTOPHER A | 2014-06-25 |
| KD9CFH | Weber, Ryan R | 2014-10-07 |
| KD9CFI | Lillico, Angelo C | 2014-10-07 |
| KD9CJT | Largent, Gene E | 2014-10-29 |
| KD9CMP | BUTLER, BENJAMIN P | 2014-11-13 |
| KD9GKU | Seppi, Stephen T | 2016-06-08 |
| KD9HOA | Cox, Jeremy | 2016-12-15 |
| KD9MCD | Landgraf, Scott D | 2018-11-29 |
| KD9MGN | Reifschneider, Aaron J | 2019-01-30 |
| KD9NBE | Williams, John M | 2019-04-25 |
| KD9NTH | Grove, Timothy A | 2019-08-27 |
| KD9OWS | CAYWOOD, RONALD D | 2020-02-19 |
| KD9QBV | Newton, Ryan W | 2020-08-12 |
| KD9QFA | Santhoff, Joseph T | 2020-08-25 |
| KD9RRP | Chitwood, Michael T | 2021-02-12 |
| KD9SKF | Nesbit, Gary L | 2021-04-12 |
| KD9UJN | Sheck, Amelya B | 2022-02-18 |
| KG0EG | KITCHEN, PHILLIP L | 2013-01-15 |
| KG9CF | ALLSCHEID, DENNIS M | 2015-06-09 |
| KL7MU | MASCHMEYER, CARL E | 2015-12-23 |
| N7NBS | BADGER JR, CHARLES N | 2022-06-24 |
| N9MQW | HOEFFKEN, GREGORY A | 2021-08-03 |
| N9OMD | HASTY, BILLIE R | 2022-05-21 |
| N9PPK | KING, BILLY C | 2012-02-29 |
| N9QNO | MILLER, GRACE K | 2012-06-21 |
| N9RVY | WYRICK, MICHAEL S | 2013-03-01 |
| N9UCR | HENKE, KEVIN D | 2013-03-26 |
| N9VWE | WYRICK, DEBORAH S | 2013-12-31 |
| N9WSH | Boedges, Barbara A | 2014-01-30 |
| N9ZNF | WINSCHEL, GERALD L | 2015-05-12 |
| W0SE | TAYLOR, PERRY T | 2014-01-16 |
| WA9TYY | SHREVE, KENNETH R | 2016-08-27 |
| WB0OSA | TAYLOR, ETHEL L | 2009-10-22 |
| WB4OJM | PFEIFFER, FELIX E | 2016-10-13 |
| WB6TRI | LARSSON, ROGER E | 2006-06-01 |
| WD9DIO | KLOEPPER, KENNETH D | 2016-01-11 |
| WY9X | FISCHER, LEWIS | 2020-12-16 |
