Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WD4JKX callsign genealogy
Currently held by Lopez, Luis A
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 WD4JKX's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held WD4JKX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WD4JKX, oldest first.
- CONNER, THOMAS R FL1994-09-07 → cancelled 2006-09-08
- Lopez, Luis A FL2017-12-29 active