Confidence: Medium · Source: FCC ULS · As of 2026-09-11
KP4MPB callsign genealogy
Currently held by PENA, MARIA
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 KP4MPB's current licensee, walking backwards.
- PENA, MARIAPRgranted 2024-09-10cancelled 2024-09-28
Successor callsigns
Callsigns held now by people who previously held KP4MPB.
No current licensee on record previously held this callsign.