Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9SNL callsign genealogy
Currently held by Zitek, Stanley R
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 W9SNL's current licensee, walking backwards.
- Zitek, Stanley RWIgranted 2016-02-09cancelled 2016-11-04
Successor callsigns
Callsigns held now by people who previously held W9SNL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9SNL, oldest first.
- FROST, JACK A IL1997-09-15 → cancelled 2009-09-16
- Zitek, Stanley R WI2016-11-04 active