Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KG5ZTH callsign genealogy
Currently held by HAYMANN, JOHN W
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 KG5ZTH's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KG5ZTH.
No current licensee on record previously held this callsign.