Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KN0CW callsign genealogy
Currently held by Ellsworth, John C
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 KN0CW's current licensee, walking backwards.
- Ellsworth, John CMNgranted 2011-02-16cancelled 2018-01-23
Successor callsigns
Callsigns held now by people who previously held KN0CW.
- Christianson, Eric JNVgranted 2020-03-04
All historical holders
Every license row we've seen with the callsign KN0CW, oldest first.
- Christianson, Eric J NV2010-05-14 → cancelled 2013-07-02
- Ellsworth, John C MN2018-01-23 active