Confidence: Medium · Source: FCC ULS · As of 2026-09-14
NX4JP callsign genealogy
Currently held by PEREZ, JUAN 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 NX4JP's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held NX4JP.
No current licensee on record previously held this callsign.