The Federal Communications Commission (FCC) has granted a total of 21 licenses and call signs in the category of Restricted Operator license in Portola 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 |
|---|---|---|
| RR00012410 | HILLIER, JONATHAN H | 1978-06-30 |
| RR00013384 | DOYLE, JOHN L | 2003-07-26 |
| RR00013415 | Lewke, Reynold H | 2003-07-29 |
| RR00016936 | Schaller, Paul D | 2004-02-14 |
| RR00036431 | Young, John A | 2006-04-11 |
| RR00043062 | Giampa, Nickolas F | 2006-12-13 |
| RR00044774 | Eiron, Nadav | 2007-02-13 |
| RR00049216 | Levin, Daniel J | 2007-06-19 |
| RR00059829 | Walker, Jack M | 2008-06-11 |
| RR00067722 | Kavanaugh Jr, John S | 2009-10-17 |
| RR00087348 | Boich, Michael D | 2012-06-13 |
| RR00101970 | Edidin, Avram A | 2014-04-10 |
| RR00112144 | Zdasiuk, George A | 2015-05-20 |
| RR00129157 | Daniel, Thomas | 2017-02-16 |
| RR00129811 | Erb, Guy C | 2017-03-07 |
| RR00133379 | Jones, David R | 2017-06-29 |
| RR00142615 | Wiley, Craig R | 2018-04-12 |
| RR00155724 | Eisberg III, Arthur C | 2019-04-26 |
| RR00169390 | Chenette, David L | 2020-07-29 |
| RR00190006 | Barratt, Jeffrey J | 2022-05-10 |
| RR00196165 | Zdasiuk, Jonathan A | 2022-09-14 |
