| Frequency | Call Sign | Company name | RS | City |
|---|
| 151.6850 | KD25837 | D ARRIGO BROS CO OF CALI | IG | CASTROVILLE |
| 151.7750 | KNIP559 | AUSONIO CONSTRUCTION INC | IB | CASTROVILLE |
| 151.7750 | KNIP559 | AUSONIO CONSTRUCTION INC | IB | CASTROVILLE |
| 153.1550 | KD25837 | D ARRIGO BROS CO OF CALI | IG | CASTROVILLE |
| 154.3700 | KCY562 | NORTH COUNTY FIRE PROTECT | PF | CASTROVILLE |
| 154.5150 | KUB581 | KLEEN GLOBE INC | IB | CASTROVILLE |
| 156.1050 | KCY562 | NORTH COUNTY FIRE PROTECT | PF | CASTROVILLE |
| 158.3400 | KD25837 | D ARRIGO BROS CO OF CALI | IG | CASTROVILLE |
| 451.0500 | WNWP494 | CASTROVILLE WATER DISTRIC | IW | CASTROVILLE |
| 452.3750 | WPMI559 | AMERICAN COOLING INC | IG | CASTROVILLE |
| 452.3750 | WPMI559 | AMERICAN COOLING INC | IG | CASTROVILLE |
| 456.0500 | WNWP494 | CASTROVILLE WATER DISTRIC | IW | CASTROVILLE |
| 835.0200 | KNKA390 | GTE MOBILNET OF CALIFORNI | CL | CASTROVILLE |