Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KI6YFR callsign genealogy
Currently held by HEINER, ZACK S
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 KI6YFR's current licensee, walking backwards.
- HEINER, ZACK SCAgranted 2008-04-04cancelled 2009-04-07
Successor callsigns
Callsigns held now by people who previously held KI6YFR.
- HEINER, ZACK SCAgranted 2018-06-12