Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB9EX callsign genealogy
Currently held by Urbanski, Floyd T
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 AB9EX's current licensee, walking backwards.
- Urbanski, Floyd TWIgranted 1997-06-23cancelled 2002-04-10
Successor callsigns
Callsigns held now by people who previously held AB9EX.
No current licensee on record previously held this callsign.