Amateur Radio Callsigns in ZIP Code: 94552
| Callsign | Name | City | State | Country |
|---|---|---|---|---|
| KN6ROT | Atkinson, Ian A | Castro Valley | CA | United States |
| KM6PWA | BERAZ, MATTHEW J | CASTRO VALLEY | CA | United States |
| KK6GVC | Blaha Jr, Jerome A | Castro Valley | CA | United States |
| KO6BHG | Budvytis, Gintautas | Castro Valley | CA | United States |
| KO6BHY | Budvytis, Martynas | Castro Valley | CA | United States |
| KO6QV | CASTELL, ROBERT E | CASTRO VALLEY | CA | United States |
| KN6MBH | Cavalieri, Steven | Castro Valley | CA | United States |
| KM6UFN | Ceciro, Giovanni C | Castro Valley | CA | United States |
| N6UUB | CHAN, MICHELLE F | CASTRO VALLEY | CA | United States |
| KN6VLI | Chandel, Shantnu | CASTRO VALLEY | CA | United States |
| KO6DXZ | Chenue, Scott E | Castro Valley | CA | United States |
| WB6COJ | CHUN, TOM B | CASTRO VALLEY | CA | United States |
| KB9OLM | DVORKIN, VLADIMIR | CASTRO VALLEY | CA | United States |
| KM6QYL | Eriksson, Peter M | Castro Valley | CA | United States |
| KO6ETK | FANG, YINJIA | CASTRO VALLEY | CA | United States |
| KM6PWM | FOSTER, JONATHAN | CASTRO VALLEY | CA | United States |
| KN6KVF | Fresquez, Anthony O | Castro Valley | CA | United States |
| KM6BHQ | Fresquez, Thomas W | Castro Valley | CA | United States |
| KN6JZF | Gallardo, Anthony N | Castro Valley | CA | United States |
| KM6QKJ | GARCIA, MARC A | Castro Valley | CA | United States |
| KM6PWQ | GIANNECCHINI, ALBERTO | CASTRO VALLEY | CA | United States |
| KN6DES | Gil, Alanna K | Castro Valley | CA | United States |
| KK6TOV | GOING, KELLY E | CASTRO VALLEY | CA | United States |
| KN6OIT | Goldwire Jr., Henry C | CASTRO VALLEY | CA | United States |
| KM3OWS | Grier, Alan T | Castro Valley | CA | United States |
| KM6SZY | Hale, Angela C | Castro Valley | CA | United States |
| KO6FCO | HILL, MARSHALL | CASTRO VALLEY | CA | United States |
| KG6IMM | Iwata, Masanari | CASTRO VALLEY | CA | United States |
| AI6VE | Kajiki, Moriya | Castro Valley | CA | United States |
| WB6IRE | LANDES, LARRY N | CASTRO VALLEY | CA | United States |
| N6TRP | LAWLEY III, FREDERICK E | CASTRO VALLEY | CA | United States |
| KG6BTX | Lee, Brian | Castro Valley | CA | United States |
| WB6NAC | LIGHT, WILLIAM M | CASTRO VALLEY | CA | United States |
| KK6UPW | Liu, Justin N | Castro Valley | CA | United States |
| K6DMI | Lyubimov, Dmitriy | Castro Valley | CA | United States |
| KI6KZU | Margalit, Yotam | CASTRO VALLEY | CA | United States |
| KN6KOP | MORARIU, SERGIO D | CASTRO VALLEY | CA | United States |
| KN6RUC | Ruble, Christopher L | Castro Valley | CA | United States |
| KI6OXF | Sheets, George E | CASTRO VALLEY | CA | United States |
| KM6SFS | Speech, Trevor L | Castro Valley | CA | United States |
| W6RSW | STOWE, ROBERT W | CASTRO VALLEY | CA | United States |
| KM6UFP | Stutz, Johanna M | Castro Valley | CA | United States |
| KK6HWE | Tichenor, Daniel A | Castro Valley | CA | United States |
| KJ4PSQ | Titoo, MD | Castro Valley | CA | United States |
| WB6DOQ | VON SIVERS, PETER J | CASTRO VALLEY | CA | United States |
| WA6ILS | WA6ILS REPEATER SYSTEM | CASTRO VALLEY | CA | United States |
| KJ6PGK | White, Jonathan C | Castro Valley | CA | United States |
| N6ADZ | Wilson, Roy C | Castro Valley | CA | United States |
| KF6BJH | WOODS, GENEVIEVE D | CASTRO VALLEY | CA | United States |