Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KS9Q callsign genealogy
Currently held by Karpowitz, James 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 KS9Q's current licensee, walking backwards.
- Karpowitz, James AWIgranted 2003-07-24cancelled 2013-03-26
Successor callsigns
Callsigns held now by people who previously held KS9Q.
- SNYDER, EDGAR POKgranted 2008-11-20cancelled 2020-10-28
All historical holders
Every license row we've seen with the callsign KS9Q, oldest first.
- Karpowitz, James A WI2023-02-22 active
- —— → cancelled 1998-10-27