Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KP4OAR callsign genealogy
Currently held by Rivera 223, Oscar 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 KP4OAR's current licensee, walking backwards.
- Rivera, Oscar APRgranted 2001-03-20cancelled 2002-04-30
Successor callsigns
Callsigns held now by people who previously held KP4OAR.
No current licensee on record previously held this callsign.