Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4PFR callsign genealogy
Currently held by Rivera-Rivera, Pedro F
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 KP4PFR's current licensee, walking backwards.
- Rivera-Rivera, Pedro FPRgranted 2018-06-12cancelled 2018-07-10
Successor callsigns
Callsigns held now by people who previously held KP4PFR.
No current licensee on record previously held this callsign.