The Federal Communications Commission (FCC) has granted a total of 9 licenses and call signs in the category of Ship Recreational or Voluntarily Equipped license in Piedmont, 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 |
|---|---|---|
| WDD6246 | Klyce, Henry A | 2007-03-02 |
| WDE5254 | Olsen, Lawrence S | 2008-06-20 |
| WDF4999 | Blackett III, Hill | 2010-06-22 |
| WDH4302 | YAPI KREDI FINANSAL KIRALAMA A.O. | 2014-04-18 |
| WDK7810 | Muhiudeen, Kamil j | 2019-04-17 |
| WDK8400 | Crystal Voyager Expeditions | 2019-05-17 |
| WDL7388 | Blackett III, Hill | 2020-08-26 |
| WDM3412 | Carlile, Jefferson P | 2021-05-05 |
| WDM5178 | Berl, Steven H | 2021-08-04 |
