Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KJ4SPC callsign genealogy
Currently held by BUTLER SR, KENNETH L
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 KJ4SPC's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KJ4SPC.
- BUTLER SR, KENNETH LNCgranted 2010-02-26cancelled 2015-04-03