Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N6THX callsign genealogy
Currently held by Frazier, Calvin E
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 N6THX's current licensee, walking backwards.
- Alvarado, Jose GCAgranted 2017-01-23cancelled 2017-02-10
Successor callsigns
Callsigns held now by people who previously held N6THX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N6THX, oldest first.
- Frazier, Calvin E CA2000-05-19 → cancelled 2012-07-04
- Alvarado, Jose G CA2017-02-10 active