uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-12

K3NMB callsign genealogy

Currently held by DUTTON JR, THOMAS S

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 K3NMB's current licensee, walking backwards.

  1. KC3BBFcancelled· E
    BALOG, NORMAN MMDgranted 2013-08-05cancelled 2013-12-10

Successor callsigns

Callsigns held now by people who previously held K3NMB.

  1. K3NBactive· E
    BALOG, NORMTNgranted 2023-12-30

All historical holders

Every license row we've seen with the callsign K3NMB, oldest first.

  • DUTTON JR, THOMAS S DE
    1997-03-24 → cancelled 2009-03-25
  • BALOG, NORM MD
    2013-12-10 → cancelled 2014-01-10
← Back to K3NMB License history →