Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KG9MZ callsign genealogy
Currently held by GILDERSLEEVE JR, WILLIAM 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 KG9MZ's current licensee, walking backwards.
- GILDERSLEEVE JR, WILLIAM Rcancelled 1998-04-01
Successor callsigns
Callsigns held now by people who previously held KG9MZ.
No current licensee on record previously held this callsign.