Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4STW callsign genealogy
Currently held by Smokler, Stewart L
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 K4STW's current licensee, walking backwards.
- Smokler, Stewart LVAgranted 2000-11-14cancelled 2007-02-13
Successor callsigns
Callsigns held now by people who previously held K4STW.
No current licensee on record previously held this callsign.