The Federal Communications Commission (FCC) has granted a total of 30 licenses and call signs in the category of Amateur license in Signal Hill, California. 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 |
|---|---|---|
| AC6PT | CARREON, REYNALDO M | 2014-01-17 |
| AC6SU | CARREON, BRODERICK F | 2015-04-27 |
| K6ZTP | BRITTEN, DONALD | 2015-12-28 |
| KD6KUA | ST PIERRE, JAMES A | 2013-12-28 |
| KE6HZT | GREULICH, JOSEPH L | 2004-03-25 |
| KE6JZE | FOLWICK, ROGER E | 2014-07-01 |
| KE6WWI | LY, TONY THANH H | 2005-05-24 |
| KF6HVE | WILDENTHALER, GREG L | 2016-12-13 |
| KF6PKY | GREEN, ELIZABETH J | 2007-12-05 |
| KG6OTV | Miller, Billy L | 2012-10-31 |
| KG6TPC | Hiatt, Kerry R | 2004-01-26 |
| KI6MTW | Presley, Jason M | 2007-11-02 |
| KI6MTZ | Freeman, Kristina M | 2007-11-02 |
| KI6NGL | Grubic, Michael S | 2017-08-25 |
| KI6VSI | Dayrit, Joshua M | 2009-02-06 |
| KI6VZC | CAVALLARO, JASON C | 2018-12-13 |
| KI6VZD | CAVALLARO, MARIAN C | 2018-12-13 |
| KK6MHL | Nesbitt, Floyd | 2014-05-14 |
| KM6FFF | Pritchard, Ada Georgina | 2016-09-16 |
| KM6RON | Guerra, Sylvia J | 2018-03-21 |
| KN6DRW | Taulbee, Kaya | 2019-08-09 |
| KN6FSL | Kim, Christina | 2019-11-15 |
| KN6VSY | Fox, Samuel H | 2022-09-13 |
| N3MDS | CREAGER, JENNIFER L | 2022-02-19 |
| N6DFF | Grubic, Alicia M C | 2015-05-21 |
| N6YJT | LUPER, MICHAEL C | 2020-04-18 |
| NC6Q | GRUBIC, ROBERT L | 2016-02-05 |
| W6JHT | LONG, ROBERT E | 2015-05-19 |
| WA6EOU | PYLES, GREGORY A | 2016-04-12 |
| WB6OMY | DARE, LOUIS A | 2007-06-27 |
