Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC1JJJ callsign genealogy
Currently held by Jaronczyk, James 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 KC1JJJ's current licensee, walking backwards.
- Jaronczyk, James JCTgranted 2010-06-29cancelled 2013-11-22
Successor callsigns
Callsigns held now by people who previously held KC1JJJ.
No current licensee on record previously held this callsign.