Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NP4GR callsign genealogy
Currently held by RIVERA, JORGE 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 NP4GR's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held NP4GR.
No current licensee on record previously held this callsign.