Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NP4TS callsign genealogy
Currently held by RUIZ PABON, ANGEL L
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 NP4TS's current licensee, walking backwards.
- SOTO PEREZ, JUAN APRgranted 2019-09-16cancelled 2021-03-02
Successor callsigns
Callsigns held now by people who previously held NP4TS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NP4TS, oldest first.
- RUIZ PABON, ANGEL L PR1994-05-24 → cancelled 2006-05-25
- SOTO PEREZ, JUAN A PR2021-03-02 active