Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4CJJ callsign genealogy
Currently held by CAMPBELL, THAD C
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 N4CJJ's current licensee, walking backwards.
- Jones, John CNCgranted 2023-12-16cancelled 2024-01-05
Successor callsigns
Callsigns held now by people who previously held N4CJJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4CJJ, oldest first.
- CAMPBELL, THAD C NC1995-03-16 → cancelled 2007-03-17
- Jones, John C NC2024-01-05 active