Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WK0R callsign genealogy
Currently held by BRANDENBURGER, KAYDON
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 WK0R's current licensee, walking backwards.
- KRATZ JR, DAVID WMOgranted 2003-10-21cancelled 2003-11-14
Successor callsigns
Callsigns held now by people who previously held WK0R.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WK0R, oldest first.
- BRANDENBURGER, KAYDON KS1988-07-12 → cancelled 2000-07-13
- KRATZ JR, DAVID W MO2013-08-23 → cancelled 2026-03-07