Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4KJK callsign genealogy
Currently held by BUTTS, JAMES 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 K4KJK's current licensee, walking backwards.
- BUTTS, JAMES ETNgranted 2010-09-10cancelled 2011-05-10
Successor callsigns
Callsigns held now by people who previously held K4KJK.
No current licensee on record previously held this callsign.