Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4SMC callsign genealogy
Currently held by MUNIZ CASTRO, SAMUEL
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 KP4SMC's current licensee, walking backwards.
- MUNIZ CASTRO, SAMUELPRgranted 2017-04-26cancelled 2020-03-27
Successor callsigns
Callsigns held now by people who previously held KP4SMC.
No current licensee on record previously held this callsign.