Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NP4JG callsign genealogy
Currently held by CARDONA LABOY, MARIO
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 NP4JG's current licensee, walking backwards.
- Vega-Navarro, Jaime APRgranted 2018-11-13cancelled 2018-12-27
Successor callsigns
Callsigns held now by people who previously held NP4JG.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NP4JG, oldest first.
- CARDONA LABOY, MARIO PR1995-03-08 → cancelled 2007-03-09
- Vega-Navarro, Jaime A PR2018-12-27 active