Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA4Z callsign genealogy
Currently held by Alderson Jr, Edward W
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 KA4Z's current licensee, walking backwards.
- Alderson Jr, Edward WVAgranted 2019-06-18cancelled 2019-10-11
Successor callsigns
Callsigns held now by people who previously held KA4Z.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KA4Z, oldest first.
- RIDER, CHARLES L MS2008-06-05 → cancelled 2017-09-21
- Alderson Jr, Edward W VA2019-10-11 active