Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KM7BSA callsign genealogy
Currently held by GEISBUSH, MIKE 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 KM7BSA's current licensee, walking backwards.
- GEISBUSH, MIKE JORgranted 2013-02-21cancelled 2013-03-22
Successor callsigns
Callsigns held now by people who previously held KM7BSA.
No current licensee on record previously held this callsign.