Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KZ4SO callsign genealogy
Currently held by CANHAM, GREG 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 KZ4SO's current licensee, walking backwards.
- CANHAM, GREG AALgranted 2023-07-06cancelled 2025-04-25
Successor callsigns
Callsigns held now by people who previously held KZ4SO.
No current licensee on record previously held this callsign.