Confidence: Medium · Source: FCC ULS · As of 2026-09-14
NK9W callsign genealogy
Currently held by SMITH JR, CHRISTOPHER 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 NK9W's current licensee, walking backwards.
- SMITH JR, CHRISTOPHER BWAgranted 2011-02-17cancelled 2018-07-31
Successor callsigns
Callsigns held now by people who previously held NK9W.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NK9W, oldest first.
- KROHN, GLEN E WI2006-03-03 → cancelled 2018-05-18
- SMITH JR, CHRISTOPHER B WA2018-07-31 active