Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K2WTF callsign genealogy
Currently held by Umbach, Winifred F
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 K2WTF's current licensee, walking backwards.
- Everett, Earl ATXgranted 2023-09-06cancelled 2026-06-09
Successor callsigns
Callsigns held now by people who previously held K2WTF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K2WTF, oldest first.
- Umbach, Winifred F NY2014-03-19 → cancelled 2026-05-22
- Everett, Earl A TX2026-06-09 active