Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7KCF callsign genealogy
Currently held by DEMKE, JOSEPH W
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 W7KCF's current licensee, walking backwards.
- Fletcher, Karen CWAgranted 2014-02-27cancelled 2016-10-01
Successor callsigns
Callsigns held now by people who previously held W7KCF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7KCF, oldest first.
- DEMKE, JOSEPH W OR1993-01-05 → cancelled 2005-01-06
- Fletcher, Karen C WA2016-10-01 active