Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9DNF callsign genealogy
Currently held by Woehrle, Frank R
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 K9DNF's current licensee, walking backwards.
- Woehrle, Frank RWIgranted 2003-07-01cancelled 2003-08-15
Successor callsigns
Callsigns held now by people who previously held K9DNF.
No current licensee on record previously held this callsign.