The Federal Communications Commission (FCC) has granted 14 radio service licenses and call signs in Port Costa, 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.
| Name | Address, Zip |
|---|---|
| AC1ME | PO Box 77, 94569 |
| K6ALU | PO Box 19, 94569 |
| K6MTB | PO Box 19, 94569 |
| KF6IUQ | PO Box 56, 94569 |
| KF6IUR | PO Box 56, 94569 |
| KI6FPV | PO Box 19, 94569 |
| KI6KPU | 4 Prospect Ave, PO Box 101, 94569 |
| KJ6KJQ | PO Box 56, 94569 |
| KJ6KJR | PO Box 1, 94569 |
| KJ6YZG | PO Box 2, 94569 |
| RR00074591 | 46 Canyon Lake Drive, PO Box 56, 94569 |
| RR00074592 | 46 Canyon Lake Drive, PO Box 1, 94569 |
| WDF6137 | 46 Canyon Lake Drive, PO Box 1, 94569 |
| WRWK259 | PO Box 34, 94569 |
