Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KP4KPK callsign genealogy
Currently held by ROSARIO, RAMON 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 KP4KPK's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KP4KPK.
No current licensee on record previously held this callsign.