Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4JEB callsign genealogy
Currently held by Butler, Jack E
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 K4JEB's current licensee, walking backwards.
- BUTLER, JACK ESCgranted 1997-06-30cancelled 2003-03-22
Successor callsigns
Callsigns held now by people who previously held K4JEB.
No current licensee on record previously held this callsign.