Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3OES callsign genealogy
Currently held by CALIFORNIA EMERGENCY SERVICES RADIO ASSN
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by K3OES's current licensee, walking backwards.
- KF6NGKcancelledHUDSON III, JOHN Ncancelled 1998-05-11
Successor callsigns
Callsigns held now by people who previously held K3OES.
No current licensee on record previously held this callsign.