Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AA9ZK callsign genealogy
Currently held by Yunger, James R
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 AA9ZK's current licensee, walking backwards.
- YUNGER, JAMES RINgranted 1991-05-28cancelled 2000-06-22
Successor callsigns
Callsigns held now by people who previously held AA9ZK.
- Yunger, James ROHgranted 2011-03-04cancelled 2023-05-31