Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KX4ZV callsign genealogy
Currently held by HAYNES, JOHN P
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 KX4ZV's current licensee, walking backwards.
- HAYNES, JOHN PKYgranted 2020-07-23cancelled 2020-07-23
Successor callsigns
Callsigns held now by people who previously held KX4ZV.
- HAYNES, JOHN PKYgranted 2020-08-11