Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7SFK callsign genealogy
Currently held by Kaltsounis, Sarah
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 W7SFK's current licensee, walking backwards.
- Kaltsounis, SarahWAgranted 2018-04-24cancelled 2018-05-12
Successor callsigns
Callsigns held now by people who previously held W7SFK.
No current licensee on record previously held this callsign.