Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI4WZ callsign genealogy
Currently held by SHULER, WALTER 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 AI4WZ's current licensee, walking backwards.
- SHULER, WALTER TNCgranted 2005-03-28cancelled 2007-04-16
Successor callsigns
Callsigns held now by people who previously held AI4WZ.
No current licensee on record previously held this callsign.