Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD5FWO callsign genealogy
Currently held by Kostyak Jr, Leonard P
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 KD5FWO'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 KD5FWO.
- Kostyak Jr, Leonard PTXgranted 2017-06-21