Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NP4RR callsign genealogy
Currently held by RIVERA, PEDRO J
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 NP4RR's current licensee, walking backwards.
- RIVERA, PEDRO JPRgranted 2011-09-12cancelled 2019-06-11
Successor callsigns
Callsigns held now by people who previously held NP4RR.
No current licensee on record previously held this callsign.