Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KE4LTW callsign genealogy
Currently held by ROSENFELD, JOE D
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 KE4LTW's current licensee, walking backwards.
- Rosenfeld, Joseph DFLgranted 2019-04-26cancelled 2019-05-21
Successor callsigns
Callsigns held now by people who previously held KE4LTW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KE4LTW, oldest first.
- ROSENFELD, JOE D FL1994-05-17 → cancelled 2006-05-18
- Rosenfeld, Joseph D FL2019-05-21 active