The Federal Communications Commission (FCC) has granted a total of 26 licenses and call signs in the category of General Mobile Radio (GMRS) license in Sierra Madre, 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 |
|---|---|---|
| WPXK304 | Vanderpool, Edwin R | 2018-02-14 |
| WQML698 | Felt, David D | 2010-09-17 |
| WQML841 | Mays, Richard L | 2010-09-18 |
| WQOC585 | Senosiain, Fernando | 2011-08-12 |
| WQOF356 | Yelich, Mark S | 2021-08-14 |
| WQPR531 | Raouf, Nasrat A | 2012-07-28 |
| WQWI961 | Bell, Jon | 2015-09-11 |
| WQXI343 | Smith, David S | 2016-03-12 |
| WQYY940 | Kenyon, Brett D | 2017-03-08 |
| WRAM916 | Butler, Craig | 2018-01-10 |
| WRBS836 | Barry, Richard W | 2018-06-09 |
| WRCH398 | Raouf, Nasrat A | 2018-10-02 |
| WRDD937 | ODell, Mark | 2019-04-05 |
| WRDL849 | Sweeney, Anthony C | 2019-05-31 |
| WRDY755 | Podley 660, David | 2019-08-22 |
| WRER803 | McGuffie, Joshua N | 2019-12-10 |
| WRKM559 | Otto Mr., Timothy J | 2021-01-21 |
| WRKR770 | Aldoroty, Noka | 2021-02-03 |
| WRKZ335 | Barry, Denny | 2021-03-09 |
| WRMG276 | Smith, Ronald C | 2021-04-03 |
| WRNZ626 | Sarti, Aldino S | 2021-09-14 |
| WRPY607 | Palma, Matthew | 2022-04-06 |
| WRUM561 | Coates, David A | 2022-09-13 |
| WRVG872 | Atli, Cem | 2022-11-19 |
| WRVW776 | Wachowiak, Ian | 2023-01-18 |
| WRWB452 | Garcia, Edward T | 2023-02-02 |
