Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC9ILH callsign genealogy
Currently held by Diehl Sr, Robert H
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 KC9ILH'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 KC9ILH.
- Diehl Sr, Robert HILgranted 2006-01-10cancelled 2010-03-02