Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB9XZ callsign genealogy
Currently held by Schilling, William F
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 AB9XZ's current licensee, walking backwards.
- Schilling, William FWIgranted 2004-10-07cancelled 2010-11-09
Successor callsigns
Callsigns held now by people who previously held AB9XZ.
No current licensee on record previously held this callsign.