Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC6SDA callsign genealogy
Currently held by MERZ mr, KENNETH T
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 KC6SDA's current licensee, walking backwards.
- MERZ mr, KENNETH TCAgranted 2021-07-09cancelled 2025-04-08
Successor callsigns
Callsigns held now by people who previously held KC6SDA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC6SDA, oldest first.
- HATAMIYA, MICHELE M CA2001-03-22 → cancelled 2013-04-03
- MERZ mr, KENNETH T CA2025-04-08 active