Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4LST callsign genealogy
Currently held by SANTOS TORRES, LUIS F
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 KP4LST's current licensee, walking backwards.
- SANTOS TORRES, LUIS FFLgranted 2016-09-30cancelled 2016-10-18
Successor callsigns
Callsigns held now by people who previously held KP4LST.
- SANTOS TORRES, LUIS FPRgranted 2019-07-30