Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N6ZYA callsign genealogy
Currently held by DETTERICH, THOMAS K
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 N6ZYA's current licensee, walking backwards.
- DETTERICH, THOMAS KCAgranted 1994-07-16cancelled 2003-10-24
Successor callsigns
Callsigns held now by people who previously held N6ZYA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N6ZYA, oldest first.
- DETTERICH, CLARENCE A CA1990-10-02 → cancelled 2002-10-03
- DETTERICH, THOMAS K CA2024-02-06 active