Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4JJK callsign genealogy
Currently held by KISTNER JR, JOSEPH 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 K4JJK's current licensee, walking backwards.
- KISTNER JR, JOSEPH JTNgranted 2022-12-16
Successor callsigns
Callsigns held now by people who previously held K4JJK.
- KISTNER JR, JOSEPH JTNgranted 2022-12-16