Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4MHB callsign genealogy
Currently held by MILLER, ISADORE N
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 W4MHB's current licensee, walking backwards.
- BENGTSON, MICHAEL HGAgranted 2016-01-15cancelled 2016-02-17
Successor callsigns
Callsigns held now by people who previously held W4MHB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4MHB, oldest first.
- MILLER, ISADORE N FL1996-09-26 → cancelled 2008-09-27
- BENGTSON, MICHAEL H GA2025-12-30 active