Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KU4MA callsign genealogy
Currently held by Halle, Michael B
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 KU4MA's current licensee, walking backwards.
- WA5BVRcancelledcancelled 1997-11-10
Successor callsigns
Callsigns held now by people who previously held KU4MA.
No current licensee on record previously held this callsign.