Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC9HIJ callsign genealogy
Currently held by Jamrosz, Jeffrey A
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 KC9HIJ'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 KC9HIJ.
- Jamrosz, Jeffrey AINgranted 2024-02-13