Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NW9C callsign genealogy
Currently held by Cottrill III, Charles 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 NW9C's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held NW9C.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NW9C, oldest first.
- SWANSON, JOHN V IN1987-12-29 → cancelled 1999-12-30
- Cottrill III, Charles E WI2020-02-19 active