Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4LLS callsign genealogy
Currently held by PEREZ PORRO, SANTIER
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 K4LLS's current licensee, walking backwards.
- PEREZ PORRO, SANTIERFLgranted 2023-09-23cancelled 2023-12-19
Successor callsigns
Callsigns held now by people who previously held K4LLS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4LLS, oldest first.
- SMITH, LYTLE L KY2010-09-10 → cancelled 2022-11-29
- PEREZ PORRO, SANTIER FL2023-12-19 active