Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KP4OIR callsign genealogy
Currently held by RIVERA-MORALES, OLGA
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 KP4OIR's current licensee, walking backwards.
- RIVERA-MORALES, OLGAPRgranted 2016-06-07cancelled 2017-12-05
Successor callsigns
Callsigns held now by people who previously held KP4OIR.
No current licensee on record previously held this callsign.