Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9ZEF callsign genealogy
Currently held by Wall, William D
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 K9ZEF's current licensee, walking backwards.
- Wall, William DINgranted 2020-06-16cancelled 2020-07-31
Successor callsigns
Callsigns held now by people who previously held K9ZEF.
No current licensee on record previously held this callsign.