Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AA9YB callsign genealogy
Currently held by HARJU, DONALD 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 AA9YB's current licensee, walking backwards.
- HARJU, DONALD LILgranted 1996-08-29cancelled 2000-05-16
Successor callsigns
Callsigns held now by people who previously held AA9YB.
No current licensee on record previously held this callsign.