Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AJ5AA callsign genealogy
Currently held by Hatzenbuehler, David L
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 AJ5AA's current licensee, walking backwards.
- Hatzenbuehler, David LOKgranted 2024-06-11cancelled 2026-02-09
Successor callsigns
Callsigns held now by people who previously held AJ5AA.
No current licensee on record previously held this callsign.