Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0OFN callsign genealogy
Currently held by Ziliak JR, David L
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 W0OFN's current licensee, walking backwards.
- Ziliak Jr, David LILgranted 2017-11-21cancelled 2018-01-17
Successor callsigns
Callsigns held now by people who previously held W0OFN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0OFN, oldest first.
- LOEBEL, ROGER L NC2005-01-06 → cancelled 2017-03-31
- Ziliak JR, David L IL2018-01-17 active