Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N6TCH callsign genealogy
Currently held by DU WALDT, JAMES B
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 N6TCH's current licensee, walking backwards.
- Unwin, John TCAgranted 2014-12-08cancelled 2015-01-27
Successor callsigns
Callsigns held now by people who previously held N6TCH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N6TCH, oldest first.
- DU WALDT, JAMES B CA1988-09-06 → cancelled 2000-09-07
- Unwin, John T CA2015-01-27 active