Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN4ZQK callsign genealogy
Currently held by GREETER JR, WILLIAM A
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 KN4ZQK's current licensee, walking backwards.
- GREETER JR, WILLIAM ANCgranted 2019-03-27cancelled 2019-11-07
Successor callsigns
Callsigns held now by people who previously held KN4ZQK.
No current licensee on record previously held this callsign.