Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD4WX callsign genealogy
Currently held by O CONNOR, JOHN F
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 KD4WX's current licensee, walking backwards.
- O CONNOR, JOHN FTNgranted 2002-11-07cancelled 2010-10-01
Successor callsigns
Callsigns held now by people who previously held KD4WX.
No current licensee on record previously held this callsign.