Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KK9MSO callsign genealogy
Currently held by Langholz, Bryan M
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 KK9MSO's current licensee, walking backwards.
- Langholz, Bryan MCAgranted 2019-09-20cancelled 2019-10-22
Successor callsigns
Callsigns held now by people who previously held KK9MSO.
No current licensee on record previously held this callsign.