Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4MMG callsign genealogy
Currently held by CASTRO MORALES, CARLOS 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 KP4MMG's current licensee, walking backwards.
- CASTRO MORALES, CARLOS APRgranted 1995-10-16cancelled 1999-11-04
Successor callsigns
Callsigns held now by people who previously held KP4MMG.
No current licensee on record previously held this callsign.