Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0BMJ callsign genealogy
Currently held by WALLACE, LEONARD 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 K0BMJ's current licensee, walking backwards.
- Johnson, Brent MMOgranted 2021-03-22cancelled 2021-05-18
Successor callsigns
Callsigns held now by people who previously held K0BMJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0BMJ, oldest first.
- WALLACE, LEONARD M OK1989-08-15 → cancelled 2001-08-16
- Johnson, Brent M MO2021-05-18 active