Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NP3FT callsign genealogy
Currently held by ROSARIO, RAMON A
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 NP3FT's current licensee, walking backwards.
- Torres Pierantoni, Francisco JPRgranted 2020-10-06cancelled 2020-12-01
Successor callsigns
Callsigns held now by people who previously held NP3FT.
- ROSARIO, RAMON APRgranted 2026-08-27
All historical holders
Every license row we've seen with the callsign NP3FT, oldest first.
- ROSARIO, RAMON A PR2006-06-27 → cancelled 2016-03-15
- Torres Pierantoni, Francisco J PR2020-12-01 active