Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NP4YL callsign genealogy
Currently held by Leon-Santana, Margarita
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 NP4YL's current licensee, walking backwards.
- Leon-Santana, MargaritaPRgranted 2006-08-30cancelled 2006-09-19
Successor callsigns
Callsigns held now by people who previously held NP4YL.
No current licensee on record previously held this callsign.