Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB0MB callsign genealogy
Currently held by Bitschenauer, Karl 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 KB0MB's current licensee, walking backwards.
- Bitschenauer, Karl EMNgranted 2009-12-07cancelled 2011-09-24
Successor callsigns
Callsigns held now by people who previously held KB0MB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB0MB, oldest first.
- KOCH, CURTIS J MN1997-04-14 → cancelled 2009-04-15
- Bitschenauer, Karl E MN2021-08-10 active