Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W9KSF callsign genealogy
Currently held by FELBER, KAREN S
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 W9KSF's current licensee, walking backwards.
- FELBER, KAREN SILgranted 1994-09-07cancelled 2000-09-23
Successor callsigns
Callsigns held now by people who previously held W9KSF.
No current licensee on record previously held this callsign.