Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4MST callsign genealogy
Currently held by SANTIAGO TORRES, MARISOL
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 KP4MST's current licensee, walking backwards.
- SANTIAGO TORRES, MARISOLPRgranted 2022-11-01cancelled 2022-12-13
Successor callsigns
Callsigns held now by people who previously held KP4MST.
No current licensee on record previously held this callsign.