Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF4IWT callsign genealogy
Currently held by CALDWELL, SEAN J
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 KF4IWT's current licensee, walking backwards.
- N3MUEno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KF4IWT.
- CALDWELL, SEAN JFLgranted 2024-05-21