Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5DFX callsign genealogy
Currently held by Frantz, Douglas M
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 K5DFX's current licensee, walking backwards.
- Frantz, Douglas MOKgranted 2010-05-11cancelled 2010-06-08
Successor callsigns
Callsigns held now by people who previously held K5DFX.
No current licensee on record previously held this callsign.