Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ4ISX callsign genealogy
Currently held by RUTLEDGE, ROBERT Z
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 KJ4ISX's current licensee, walking backwards.
- RUTLEDGE, ROBERT ZMSgranted 2004-04-17cancelled 2009-01-06
Successor callsigns
Callsigns held now by people who previously held KJ4ISX.
- RUTLEDGE, ROBERT ZALgranted 2024-01-09