Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD5AJZ callsign genealogy
Currently held by ZINNER III, ALEXANDER J
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 KD5AJZ's current licensee, walking backwards.
- ZINNER III, ALEXANDER JTXgranted 2012-03-21cancelled 2016-10-21
Successor callsigns
Callsigns held now by people who previously held KD5AJZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD5AJZ, oldest first.
- LEWIS SR, KENNETH D TX1997-05-07 → cancelled 2009-05-08
- ZINNER III, ALEXANDER J TX2026-08-11 active