| Frequency | Call Sign | Company name | RS | City |
|---|---|---|---|---|
| 210.0000 | K13FC | BT | CASTELLA | |
| 401.7895 | KE2XOY | STATE OF CALIFORNIA | XR | CASTELLA |
| 462.5250 | WPBU765 | MCI TELECOMMUNICATIONS CO | IT | CASTELLA |
| 462.5250 | WPBU765 | MCI TELECOMMUNICATIONS CO | IT | CASTELLA |
| 464.7000 | WPFH794 | POWELL, JOHN | IB | CASTELLA |
| 464.7000 | WPFH794 | POWELL, JOHN | IB | CASTELLA |
| 467.5250 | WPBU765 | MCI TELECOMMUNICATIONS CO | IT | CASTELLA |
| 855.4875 | WPFX947 | CALIFORNIA, STATE OF | GP | CASTELLA |
| 855.4875 | WPFX947 | ALIFORNIA, STATE OF | GP | CASTELLA |