Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5BMS callsign genealogy
Currently held by O'Gwin, Larry 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 K5BMS's current licensee, walking backwards.
- O'Gwin, Larry JOKgranted 2011-09-16cancelled 2011-10-07
Successor callsigns
Callsigns held now by people who previously held K5BMS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5BMS, oldest first.
- O GWIN, LARRY J OK1998-03-23 → cancelled 2010-03-24
- O'Gwin, Larry J AZ2023-08-15 active