Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4AV callsign genealogy
Currently held by DELGADO RUIBAL, RAMON R
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 KP4AV's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KP4AV.
No current licensee on record previously held this callsign.