Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ4OPJ callsign genealogy
Currently held by RIGHTER SR, JOHN A
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 KJ4OPJ's current licensee, walking backwards.
- RIGHTER SR, JOHN ATNgranted 2001-02-21cancelled 2009-08-25
Successor callsigns
Callsigns held now by people who previously held KJ4OPJ.
No current licensee on record previously held this callsign.