Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD5TZ callsign genealogy
Currently held by Austin, Michael
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 AD5TZ's current licensee, walking backwards.
- Austin, MichaelLAgranted 2005-03-21cancelled 2005-04-12
Successor callsigns
Callsigns held now by people who previously held AD5TZ.
- Austin, MichaelLAgranted 2025-02-20