Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6SM callsign genealogy
Currently held by DE ARMAN, LOUIE J
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 K6SM's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K6SM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6SM, oldest first.
- DE ARMAN, LOUIE J CA2017-04-07 → cancelled 2022-06-20
- Pentrack, David W CA2024-07-09 active