Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC7YFY callsign genealogy
Currently held by CHUN, COLLIER S
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 KC7YFY's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KC7YFY.
- K7CPUactiveINTEL EMERGENCY AMATEUR RADIO SERVICEORgranted 2017-08-09