Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4JKA callsign genealogy
Currently held by Kalbfeld, Raymond
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 K4JKA's current licensee, walking backwards.
- Kalbfeld, RaymondNCgranted 2024-04-11cancelled 2024-05-07
Successor callsigns
Callsigns held now by people who previously held K4JKA.
- Anderson, John KVAgranted 2017-12-09
All historical holders
Every license row we've seen with the callsign K4JKA, oldest first.
- Anderson, John K VA2015-03-24 → cancelled 2017-12-09
- Kalbfeld, Raymond NC2024-05-07 active