Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K8JMB callsign genealogy
Currently held by Bales, Janet 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 K8JMB's current licensee, walking backwards.
- Bales, Janet MMIgranted 2013-04-04cancelled 2018-06-08
Successor callsigns
Callsigns held now by people who previously held K8JMB.
- Berngartt, Joseph MOHgranted 2013-11-13cancelled 2026-03-07
All historical holders
Every license row we've seen with the callsign K8JMB, oldest first.
- Berngartt, Joseph M OH2011-04-16 → cancelled 2013-11-13
- Bales, Janet M OH2018-06-08 active