uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-14

N7BMW callsign genealogy

Currently held by DURRER, JOSEPH H

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 N7BMW's current licensee, walking backwards.

  1. K8BMWactive· G
    Wiese, Brandon MINgranted 2025-05-30
  2. KD9BTFcancelled· G
    Wiese, Brandon MINgranted 2014-07-17cancelled 2015-05-29

Successor callsigns

Callsigns held now by people who previously held N7BMW.

  1. N3TCBactive· G
    Byrum, Thomas CSCgranted 2021-01-29

All historical holders

Every license row we've seen with the callsign N7BMW, oldest first.

  • DURRER, JOSEPH H AZ
    1995-01-31 → cancelled 2007-02-01
  • Byrum, Thomas C IL
    2010-05-25 → cancelled 2011-04-19
  • WOLOSHIN, BRIAN M WA
    2023-05-04 active