The Federal Communications Commission (FCC) has granted a total of 16 licenses and call signs in the category of Restricted Operator license in Sonoma, 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 |
|---|---|---|
| RR00024920 | Spadaro Sr, Paul J | 2005-01-08 |
| RR00044581 | Gibson, Mark A | 2007-02-06 |
| RR00052969 | ryan, mark | 2007-10-10 |
| RR00064345 | Linder, Nicholas | 2009-03-04 |
| RR00073101 | GAST, THOMAS A | 1988-04-15 |
| RR00077259 | Palmer, Thomas T | 2011-03-19 |
| RR00078203 | Hicks, Richard J | 2011-04-21 |
| RR00078600 | Howarth, Sean H | 2011-05-10 |
| RR00104254 | Holtzman, Joshua M | 2014-07-03 |
| RR00117182 | Terhune, Robert W | 2015-12-10 |
| RR00141880 | Skolnik, Steven | 2018-03-23 |
| RR00150956 | Berwick, Robert G | 2018-12-14 |
| RR00157932 | Schuhriemen, Richard J | 2019-06-25 |
| RR00170334 | Robertori, Michael | 2020-10-01 |
| RR00197212 | Alexander, Wesley K | 2022-10-05 |
| RR00201271 | Dobson, James R | 2023-01-05 |
