Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NP4G callsign genealogy
Currently held by CALERO SR, RAMON
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 NP4G's current licensee, walking backwards.
- Vicens Rodriguez, Jose CPRgranted 2006-10-24cancelled 2008-05-30
Successor callsigns
Callsigns held now by people who previously held NP4G.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NP4G, oldest first.
- CALERO SR, RAMON PR1996-05-09 → cancelled 2008-05-10
- Vicens, Jose C PR2018-03-22 active