Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KI5ZAC callsign genealogy
Currently held by Steffey, Zachary O
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 KI5ZAC's current licensee, walking backwards.
- Steffey, Zachary OTXgranted 2021-06-08cancelled 2021-06-29
Successor callsigns
Callsigns held now by people who previously held KI5ZAC.
No current licensee on record previously held this callsign.