Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N3BMU callsign genealogy
Currently held by HERMAN JR, JOHN J
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 N3BMU's current licensee, walking backwards.
- Herman, ThomasOKgranted 2021-04-12cancelled 2021-05-18
Successor callsigns
Callsigns held now by people who previously held N3BMU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N3BMU, oldest first.
- HERMAN JR, JOHN J FL1998-06-23 → cancelled 2010-06-24
- Herman, Thomas OK2021-05-18 active