Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NP3SM callsign genealogy
Currently held by CRUZ, SANTA M
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 NP3SM's current licensee, walking backwards.
- Ruiz Reyes, Juan CPRgranted 2022-06-22cancelled 2022-09-30
Successor callsigns
Callsigns held now by people who previously held NP3SM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NP3SM, oldest first.
- CRUZ, SANTA M PR1997-11-24 → cancelled 2009-11-25
- Ruiz Reyes, Juan C PR2022-09-30 active