Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KW4XI callsign genealogy
Currently held by Rosenau, Todd 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 KW4XI's current licensee, walking backwards.
- Rosenau, Todd JVAgranted 2016-07-20cancelled 2016-08-22
Successor callsigns
Callsigns held now by people who previously held KW4XI.
- Rosenau, Todd JVAgranted 2016-12-13