Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NP3SF callsign genealogy
Currently held by DE LOS ANGELES SANTA, MARIA
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 NP3SF's current licensee, walking backwards.
- Fonseca-Rivera, SonalizPRgranted 2019-09-25cancelled 2019-10-19
Successor callsigns
Callsigns held now by people who previously held NP3SF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NP3SF, oldest first.
- DE LOS ANGELES SANTA, MARIA PR1998-02-25 → cancelled 2009-11-25
- Fonseca, Sonaliz PR2019-10-19 active