Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6ZSL callsign genealogy
Currently held by HOFACKER, CHARLES 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 W6ZSL's current licensee, walking backwards.
- HOFACKER, CHARLES RTXgranted 1997-01-30cancelled 2001-01-10
Successor callsigns
Callsigns held now by people who previously held W6ZSL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6ZSL, oldest first.
- BUTTON, DONALD W CA1997-10-06 → cancelled 2000-11-24
- HOFACKER, CHARLES R TX2020-10-14 active