Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9QS callsign genealogy
Currently held by ZIMMERMAN, STEVEN M
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 K9QS's current licensee, walking backwards.
- ZIMMERMAN, STEVEN MWIgranted 1993-03-02cancelled 2001-03-23
Successor callsigns
Callsigns held now by people who previously held K9QS.
No current licensee on record previously held this callsign.