Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KM4BAR callsign genealogy
Currently held by DEVER, MICHAEL T
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 KM4BAR's current licensee, walking backwards.
- Archer II, William SFLgranted 2016-09-22cancelled 2016-10-12
Successor callsigns
Callsigns held now by people who previously held KM4BAR.
- DEVER, MICHAEL TFLgranted 2024-05-03
All historical holders
Every license row we've seen with the callsign KM4BAR, oldest first.
- DEVER, MICHAEL T FL2014-05-07 → cancelled 2014-05-28
- Archer II, William S FL2016-10-12 active