Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KI4JZH callsign genealogy
Currently held by AMATEUR RADIO MASON MASONIC GATHERING
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 KI4JZH'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 KI4JZH.
- W4MGNactiveAMATEUR RADIO MASON MASONIC GATHERINGTXgranted 2026-01-23