Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB7AX callsign genealogy
Currently held by DE WITT, JACK H
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 AB7AX's current licensee, walking backwards.
- Tirrell, Bart CWAgranted 2005-10-05cancelled 2006-06-13
Successor callsigns
Callsigns held now by people who previously held AB7AX.
- Tirrell, Bart CWAgranted 2014-08-26cancelled 2026-08-29
All historical holders
Every license row we've seen with the callsign AB7AX, oldest first.
- DE WITT, JACK H AZ1994-01-18 → cancelled 2006-01-19
- Tirrell, Bart C WA2006-06-13 → cancelled 2014-08-26