Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KM4YFN callsign genealogy
Currently held by COOK JR, FRANK T
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 KM4YFN'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 KM4YFN.
- COOK JR, FRANK TNCgranted 2016-11-01