Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NP4US callsign genealogy
Currently held by RODRIGUEZ TORRES, JOSE 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 NP4US's current licensee, walking backwards.
- RODRIGUEZ TORRES, JOSE APRgranted 2009-03-13cancelled 2015-01-24
Successor callsigns
Callsigns held now by people who previously held NP4US.
No current licensee on record previously held this callsign.