Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB1SL callsign genealogy
Currently held by Kadziolka, George P
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 AB1SL's current licensee, walking backwards.
- Hughes Jr, Gailand DAZgranted 2016-11-29cancelled 2018-05-15
Successor callsigns
Callsigns held now by people who previously held AB1SL.
- Kadziolka, George PNHgranted 2023-02-24
All historical holders
Every license row we've seen with the callsign AB1SL, oldest first.
- Kadziolka, George P MA2012-12-18 → cancelled 2013-01-08
- Hughes Jr, Gailand D AZ2018-05-15 active