Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4JCJ callsign genealogy
Currently held by TRUMBLE, THOMAS H
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 N4JCJ's current licensee, walking backwards.
- JOHNSON, JEFF CTNgranted 2008-03-11cancelled 2011-07-19
Successor callsigns
Callsigns held now by people who previously held N4JCJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4JCJ, oldest first.
- TRUMBLE, THOMAS H FL1997-07-31 → cancelled 2009-08-01
- JOHNSON, JEFF C TN2021-07-27 active