Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KI5SOH callsign genealogy
Currently held by Helmberger, Zachrey J
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 KI5SOH'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 KI5SOH.
- Helmberger, Zachrey JNMgranted 2022-05-03