Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4IRR callsign genealogy
Currently held by RIVAS-RIVERA, ISRAEL
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 KP4IRR's current licensee, walking backwards.
- RIVAS-RIVERA, ISRAELPRgranted 2004-10-12cancelled 2005-03-04
Successor callsigns
Callsigns held now by people who previously held KP4IRR.
No current licensee on record previously held this callsign.