Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB1HAX callsign genealogy
Currently held by Slonski, Stanley 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 KB1HAX's current licensee, walking backwards.
- Reyor III, William FCTgranted 2013-11-22cancelled 2021-01-08
Successor callsigns
Callsigns held now by people who previously held KB1HAX.
- Slonski, Stanley JNJgranted 2021-06-28
All historical holders
Every license row we've seen with the callsign KB1HAX, oldest first.
- Slonski, Stanley J MA2001-07-23 → cancelled 2001-08-17
- Reyor III, William F CT2021-01-08 active