Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9KWC callsign genealogy
Currently held by HEIERMAN, HERMAN 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 N9KWC's current licensee, walking backwards.
- HEIERMAN, HERMAN HILgranted 2019-06-12cancelled 2019-07-02
Successor callsigns
Callsigns held now by people who previously held N9KWC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9KWC, oldest first.
- HEIERMAN, HERMAN H IL1995-10-19 → cancelled 2005-12-08
- HEIERMAN, HERMAN H IL2019-07-02 active