Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4FRE callsign genealogy
Currently held by NIEVES, WILFRIDO
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 KP4FRE's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KP4FRE.
No current licensee on record previously held this callsign.