Confidence: Medium · Source: FCC ULS · As of 2026-09-11
KB9CS callsign genealogy
Currently held by Slagle, Charles E
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 KB9CS's current licensee, walking backwards.
- Slagle, Charles EMOgranted 2024-02-24cancelled 2024-04-16
Successor callsigns
Callsigns held now by people who previously held KB9CS.
- WEINER, JOEL MILgranted 2017-09-22
All historical holders
Every license row we've seen with the callsign KB9CS, oldest first.
- Slagle, Charles E MO2024-04-16 active
- WEINER, JOEL M— → cancelled 1997-12-17