Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0JFN callsign genealogy
Currently held by PIONEER AMATEUR RADIO CLUB
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 K0JFN's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K0JFN.
- K0SWactivePIONEER AMATEUR RADIO CLUBNEgranted 2019-08-06