Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ4AAJ callsign genealogy
Currently held by North American Network Operators' Group ARC
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 KJ4AAJ's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KJ4AAJ.
- N4NOGexpiredNorth American Network Operators' Group ARCVAgranted 2007-11-20cancelled 2019-11-21