Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6MSB callsign genealogy
Currently held by BLITZ, MARK S
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 K6MSB's current licensee, walking backwards.
- Brown, Martin SCAgranted 2023-05-04cancelled 2023-07-14
Successor callsigns
Callsigns held now by people who previously held K6MSB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6MSB, oldest first.
- OWEN JR, LYNN M CA1988-04-12 → cancelled 2000-04-13
- BLITZ, MARK S CA2001-04-17 → cancelled 2013-04-18
- Brown, Martin S CA2023-07-14 active