Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W7ZYX callsign genealogy
Currently held by Dieringer, Alan E
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 W7ZYX's current licensee, walking backwards.
- Dieringer, Alan EWAgranted 2017-06-26cancelled 2017-07-18
Successor callsigns
Callsigns held now by people who previously held W7ZYX.
- Dieringer, Alan EWAgranted 2020-12-22