Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4BZM callsign genealogy
Currently held by Behr, Michael R
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 W4BZM's current licensee, walking backwards.
- Behr, Michael RFLgranted 2015-03-30cancelled 2015-04-24
Successor callsigns
Callsigns held now by people who previously held W4BZM.
No current licensee on record previously held this callsign.