Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4JAP callsign genealogy
Currently held by PLESS, 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 N4JAP's current licensee, walking backwards.
- Pless, John ATNgranted 2011-08-22cancelled 2012-08-11
Successor callsigns
Callsigns held now by people who previously held N4JAP.
No current licensee on record previously held this callsign.