Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB9CV callsign genealogy
Currently held by CARL SR, MARK J
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 KB9CV's current licensee, walking backwards.
- Cvengros, Robert MILgranted 2025-04-29cancelled 2025-12-23
Successor callsigns
Callsigns held now by people who previously held KB9CV.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB9CV, oldest first.
- CARL SR, MARK J WI2004-04-15 → cancelled 2016-07-09
- Cvengros, Robert M IL2025-12-23 active