Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W0FJK callsign genealogy
Currently held by Koussen, Frank
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 W0FJK's current licensee, walking backwards.
- Koussen, FrankTXgranted 2025-08-30cancelled 2025-09-20
Successor callsigns
Callsigns held now by people who previously held W0FJK.
No current licensee on record previously held this callsign.