Confidence: Medium · Source: FCC ULS · As of 2026-09-11
KP4MPO callsign genealogy
Currently held by PEREZ ORTIZ, MARIBEL
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 KP4MPO's current licensee, walking backwards.
- PEREZ ORTIZ, MARIBELPRgranted 2021-07-16cancelled 2021-08-03
Successor callsigns
Callsigns held now by people who previously held KP4MPO.
No current licensee on record previously held this callsign.