Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4QDX callsign genealogy
Currently held by MATHIS, JAMES E
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 K4QDX's current licensee, walking backwards.
- MATHIS, JAMES ETNgranted 2001-11-19cancelled 2007-11-06
Successor callsigns
Callsigns held now by people who previously held K4QDX.
No current licensee on record previously held this callsign.