Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5XL callsign genealogy
Currently held by WUNDER, JOHN J
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 K5XL's current licensee, walking backwards.
- WUNDER, JOHN JTXgranted 1992-11-10cancelled 2000-05-20
Successor callsigns
Callsigns held now by people who previously held K5XL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5XL, oldest first.
- DERRYBERRY, J ROBERT NM1996-11-04 → cancelled 1998-02-07
- WUNDER, JOHN J TX2020-03-31 active