Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NP4BA callsign genealogy
Currently held by COTTE SANTANA, RICARDO
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 NP4BA's current licensee, walking backwards.
- Perez-Troche, Jorge LPRgranted 2015-06-05cancelled 2015-10-02
Successor callsigns
Callsigns held now by people who previously held NP4BA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NP4BA, oldest first.
- COTTE SANTANA, RICARDO PR1990-03-13 → cancelled 2002-03-14
- Perez-Troche, Jorge L PR2015-10-02 active