Confidence: Medium · Source: FCC ULS · As of 2026-09-10
W9DAZ callsign genealogy
Currently held by Zollinger, David A
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 W9DAZ's current licensee, walking backwards.
- Zollinger, David AINgranted 2007-10-17cancelled 2008-08-02
Successor callsigns
Callsigns held now by people who previously held W9DAZ.
No current licensee on record previously held this callsign.