Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4MPK callsign genealogy
Currently held by COSTA FELICIANO, 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 KP4MPK's current licensee, walking backwards.
- COSTA FELICIANO, JOSE APRgranted 2022-04-04cancelled 2022-04-22
Successor callsigns
Callsigns held now by people who previously held KP4MPK.
No current licensee on record previously held this callsign.