Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB9NWV callsign genealogy
Currently held by Heider, Michael T
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 KB9NWV's current licensee, walking backwards.
- Heider, Michael TFLgranted 2022-07-06cancelled 2022-07-26
Successor callsigns
Callsigns held now by people who previously held KB9NWV.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB9NWV, oldest first.
- HEIDER, MICHAEL T IN1996-06-10 → cancelled 2008-06-11
- Heider, Michael T FL2022-07-26 active