The Federal Communications Commission (FCC) has granted a total of 268 licenses and call signs in the category of Amateur license in Castro Valley, 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 |
|---|---|---|
| KJ6LRZ | DANGLER III, MICHAEL J | 2010-12-07 |
| KJ6LSA | FERRELL, KAYLA | 2010-12-07 |
| KJ6LSB | FLORES, DANIEL J | 2010-12-07 |
| KJ6LSC | GELMAN, GALIT | 2010-12-07 |
| KJ6LSE | HENIGHAN, COLLIN K | 2010-12-07 |
| KJ6LSF | HONG, PHILIP | 2010-12-07 |
| KJ6LSG | HUI, BRENDA | 2010-12-07 |
| KJ6LSH | JANG, DEANNA | 2010-12-07 |
| KJ6LSI | KIM, YE SEONG | 2010-12-07 |
| KJ6LSJ | LA, JOHNATHAN H | 2010-12-07 |
| KJ6LSK | LEUNG, CONNIE | 2010-12-07 |
| KJ6LSL | LIANG, VICTORIA K | 2010-12-07 |
| | ||
| KJ6LSM | LIU, YING WU | 2010-12-07 |
| KJ6LSN | MANGABAY, JASMINE M | 2010-12-07 |
| KJ6LSO | MARTINS, PETRA E | 2010-12-07 |
| KJ6LSP | MATULA, ALEXANDER | 2010-12-07 |
| KJ6LSR | NG, JOSH T | 2010-12-07 |
| KJ6LSS | NGUYEN, NANCY T | 2010-12-07 |
| KJ6LST | PATTON, PHILIP J | 2010-12-07 |
| KJ6LSW | RUSCONI-RODRIGUES, GYAN L | 2010-12-07 |
| KJ6LSY | SAXTON, MICK P | 2010-12-07 |
| KJ6LSZ | STEWARD, TARA L | 2010-12-07 |
| KJ6LTB | THAI, DARREN L | 2010-12-07 |
| KJ6LTC | TSUEI, WILLIAM | 2010-12-07 |
| KJ6LTD | VALENTINE, ALEXANDER J | 2010-12-07 |
| KJ6LTE | VU, STEPHANIE T | 2010-12-07 |
| KJ6LTG | WONG, CHOI Y | 2022-05-17 |
| KJ6LTH | WONG, SYDNEY J | 2010-12-07 |
| KJ6LTI | XIE, LILLIAN | 2010-12-07 |
| KJ6LTJ | YAGER, DEBORAH | 2010-12-07 |
| KJ6LTK | YU, JESSICA Y | 2010-12-07 |
| KJ6LTL | ZHANG, JEFF Y | 2010-12-07 |
| KJ6LZQ | FARBARIK, JULIEN R | 2010-12-28 |
| KJ6MAF | AGUILAR, TRACY | 2010-12-30 |
| KJ6MAG | ASHTON, KANE T | 2010-12-30 |
| KJ6MAH | BHATTARAI, KUSHAL | 2010-12-30 |
| KJ6MAI | CHIN, NATALIE M | 2010-12-30 |
| KJ6MAK | JUNTILLA, ANDREW C | 2010-12-30 |
| KJ6MAL | KIM, CALEB | 2010-12-30 |
| KJ6MAM | OREGON, RICHARD E | 2010-12-30 |
| KJ6MAN | PANG, ANDREW | 2010-12-30 |
| KJ6MAO | PHAKOOM, SIRINYA J | 2010-12-30 |
| KJ6MAP | SHARMA, ANKUSH | 2010-12-30 |
| KJ6MAQ | SHMELKIN, PHILIP A | 2010-12-30 |
| KJ6MAR | TSURUMOTO, IAN M | 2010-12-30 |
| KJ6MAS | WEESE, KATHRYN S | 2010-12-30 |
| KJ6NFQ | LAMBERT, HARRISON A | 2011-03-15 |
| KJ6NVU | AHMADI, FARZAN R | 2011-04-08 |
| KJ6OBU | Hull, Brent E | 2011-04-18 |
| KJ6PGK | White, Jonathan C | 2021-05-21 |
| KJ6PPL | WILLIS, CONNIE R | 2011-06-10 |
| KJ6QEU | YAZDI, SHERVIN K | 2011-07-20 |
| KJ6SEG | Pendleton, Claire A | 2021-08-24 |
| KJ6UBY | Petrie, Brian H | 2022-02-19 |
| KK6AEQ | Li, Stanley C | 2022-09-07 |
| KK6BUZ | Matheney, Christine | 2013-01-28 |
| KK6CBV | GIANNECCHINI, MICHAEL | 2013-01-31 |
| KK6FOX | FISCHER, JOHN H | 2013-07-19 |
| KK6GVC | Blaha Jr, Jerome A | 2013-10-17 |
| KK6HGI | Shen, Wanjiao | 2013-10-28 |
| KK6HWE | Tichenor, Daniel A | 2013-11-19 |
| KK6KSZ | Heinrich, James C | 2014-03-26 |
| KK6LSG | Chow, Emory | 2014-04-29 |
| KK6LSK | Taylor, Lawrence A | 2014-04-29 |
| KK6LUI | KRAUSE, MICHAEL J | 2014-04-30 |
| KK6OZS | Macabeo, Edralin P | 2014-09-22 |
| KK6QIW | Stegman, Brian G | 2014-11-18 |
| KK6SKT | Viveiros, Felicia T | 2015-03-09 |
| KK6TOL | COXEN, ROY E | 2015-04-27 |
| KK6TOV | GOING, KELLY E | 2015-04-27 |
| KK6UOH | Baria, Lisa P | 2015-06-04 |
| KK6UPW | Liu, Justin N | 2015-06-08 |
| KK6UTF | Izyumin, Igor I | 2015-06-16 |
| KK6YNE | Huang, Kyman | 2015-11-09 |
| KK6ZLG | Grier, Alan T | 2015-12-15 |
| KK6ZVF | Kurz, Ethan | 2016-01-19 |
| KL7JGH | JACOBS, NATALIE S | 2014-06-19 |
| KM6BHQ | Fresquez, Thomas W | 2016-03-23 |
| KM6BXM | White, Andrew G | 2016-04-18 |
| KM6CXG | SPEIR, DWIGHT J | 2016-05-19 |
| KM6EAM | Mora Cabrera, Juliana | 2016-07-19 |
| KM6GAO | Pickering Walters, Keith A | 2016-10-27 |
| KM6GHJ | Iwashimizu, Derek N | 2016-11-07 |
| KM6HII | Burge, Richard B | 2016-12-27 |
| KM6PWA | BERAZ, MATTHEW J | 2018-02-02 |
| KM6PWM | FOSTER, JONATHAN | 2018-02-02 |
| KM6PWQ | GIANNECCHINI, ALBERTO | 2018-02-02 |
| KM6PWS | ILMBERGER, JOSEPH G | 2018-02-02 |
| KM6PXM | PETERSON, MARK A | 2018-02-02 |
| KM6QDW | Becker, Kevin A | 2018-02-09 |
| KM6QKJ | GARCIA, MARC A | 2018-02-16 |
| KM6QYL | Eriksson, Peter M | 2018-03-01 |
| KM6QYM | Spaulding, Mark | 2018-03-01 |
| KM6SFS | Speech, Trevor L | 2018-04-18 |
| KM6SGA | Mendoza, Rigoberto | 2018-04-19 |
| KM6SJB | Eakin, Jonathan K | 2018-04-24 |
| KM6SZE | Odriscoll, Miguel S | 2018-05-14 |
| KM6SZY | Hale, Angela C | 2018-05-14 |
| KM6TMV | Dixon, Richard L | 2018-05-29 |
| KM6UFN | Ceciro, Giovanni C | 2018-06-25 |
