Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0SWE callsign genealogy
Currently held by Keller, Christopher 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 K0SWE's current licensee, walking backwards.
- Keller, Christopher CCOgranted 2019-04-16cancelled 2019-05-10
Successor callsigns
Callsigns held now by people who previously held K0SWE.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0SWE, oldest first.
- WOODY, KENNETH F CO2006-12-19 → cancelled 2019-03-08
- Keller, Christopher C CO2019-05-10 active