Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA0DH callsign genealogy
Currently held by WARING, DONALD S
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 AA0DH's current licensee, walking backwards.
- HAAN, DAVID GCOgranted 2014-08-05cancelled 2016-03-15
Successor callsigns
Callsigns held now by people who previously held AA0DH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AA0DH, oldest first.
- WARING, DONALD S MO2000-10-25 → cancelled 2013-01-16
- HAAN, DAVID G CO2026-01-17 active