Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KF4ZNJ callsign genealogy
Currently held by COGAR, OPAL D
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 KF4ZNJ's current licensee, walking backwards.
- KB8GXWcancelledcancelled 1998-07-28
Successor callsigns
Callsigns held now by people who previously held KF4ZNJ.
No current licensee on record previously held this callsign.