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

K4SMZ callsign genealogy

Currently held by COX SR, FRED L

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 K4SMZ's current licensee, walking backwards.

  1. KG6EINcancelled· E
    Zemke, Scott MSCgranted 2017-10-24cancelled 2025-07-25
  2. KF6VIHcancelled· P
    ZEMKE, SCOTT MCAgranted 1999-03-21cancelled 2000-11-30
  3. KC2CWYcancelled· T
    ZEMKE, SCOTT Mcancelled 1999-03-21

Successor callsigns

Callsigns held now by people who previously held K4SMZ.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign K4SMZ, oldest first.

  • COX SR, FRED L GA
    2003-11-25 → cancelled 2005-04-20
  • Zemke, Scott M SC
    2025-07-25 active
← Back to K4SMZ License history →