Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KP4JAO callsign genealogy
Currently held by ORTIZ, JOSE 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 KP4JAO's current licensee, walking backwards.
- ORTIZ, JOSE APRgranted 2013-08-22cancelled 2021-01-05
Successor callsigns
Callsigns held now by people who previously held KP4JAO.
No current licensee on record previously held this callsign.