Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KZ0O callsign genealogy
Currently held by MERCHANT, KENT I
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 KZ0O's current licensee, walking backwards.
- Clarke, Kelly ACOgranted 2025-05-13cancelled 2026-08-28
Successor callsigns
Callsigns held now by people who previously held KZ0O.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KZ0O, oldest first.
- MERCHANT, KENT I MO2014-06-17 → cancelled 2026-07-16
- Clarke, Kelly A CO2026-08-28 active