Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6MBL callsign genealogy
Currently held by TILLITSON, GEORGE F
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 K6MBL's current licensee, walking backwards.
- Logan, Mark BCAgranted 2020-08-17cancelled 2020-09-05
Successor callsigns
Callsigns held now by people who previously held K6MBL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6MBL, oldest first.
- TILLITSON, GEORGE F CA2007-02-09 → cancelled 2019-04-02
- Logan, Mark B CA2020-09-05 active