The Federal Communications Commission (FCC) has granted a total of 41 licenses and call signs in the category of Amateur license in Twain Harte, 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 |
|---|---|---|
| AA6RW | WHEELER, RICHARD M | 2018-09-13 |
| K6LLD | CELENTANO, JOSEPH T | 2020-01-09 |
| KA6UJM | CANNON, JOAN M | 2003-08-06 |
| KB6CEG | Word, William R | 2006-04-18 |
| KB6CEH | WORD, LYNDA M | 2016-06-15 |
| KB6DXF | ZELINSKY, STEPHEN K | 2014-03-06 |
| KB6FRD | Horstkamp Jr, Bernard A | 2015-02-17 |
| KB6LAW | Kling, Nina L | 2005-06-16 |
| KB6VRT | SAVAGE DDS, ANTHONY H | 2008-12-09 |
| KD6ZEU | CARLSON, PAUL E | 2013-05-07 |
| KE6WPG | Kilmartin IV, Edward J | 2015-06-30 |
| KF6BYI | ASKEW, LISA J | 2006-01-10 |
| KF6GKE | GLAZIER, GLORIA J | 2008-07-08 |
| KF6HPW | SWEET HUEBBE, PHYLLIS L | 2006-09-07 |
| KF6OLS | EZELLE, MARSHA E | 2007-08-21 |
| KF6OUW | FARRELL, DAVID P | 2007-09-26 |
| KG6KFA | Prill, Donald D | 2011-12-12 |
| KG6OCT | STEVENS, NANCY A | 2012-08-30 |
| KI6PG | Kling, William F | 2008-06-20 |
| KJ6BGD | GARCIA, JONATHAN D | 2019-07-04 |
| KJ6CEW | Ogburn, Alan | 2009-09-21 |
| KJ6CNC | Word, Michael A | 2019-07-24 |
| KJ6POV | LORENZ, HOWARD K | 2021-03-16 |
| KJ6WWY | Pendegraft, John D | 2022-06-14 |
| KK6DNI | DESROSIERS, ALBERT | 2013-04-11 |
| KK6QPP | Trout, Ronnie L | 2014-12-02 |
| KK6UBK | AQUILINO, LORI L | 2015-05-11 |
| KK6UBL | AQUILINO, JACK A | 2015-05-11 |
| KM6LLK | Simmons, Douglas R | 2017-07-05 |
| KM6OWY | Byrum, Tommy | 2017-12-05 |
| KM6YJP | Bradshaw, James M | 2018-12-04 |
| KM6ZHZ | Carle, Troy W | 2019-01-31 |
| KN6CWT | Bailey II, Paul E | 2019-07-02 |
| KN6ERF | Menary, Bradley | 2019-10-07 |
| KN6ERG | Lang, John F | 2019-10-07 |
| KN6GES | Sweeney, Charles M | 2019-12-04 |
| KN6GEW | Woodhill, Lawrence A | 2019-12-04 |
| KN6QDO | Stompro, Stone P | 2021-08-23 |
| N6TQF | KOHLER, DAVID A | 2009-02-10 |
| WA6REE | WOODINGTON, BRADLEY C | 2017-03-29 |
| WB6GGY | Fish, Phillip F | 2021-02-12 |
