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Confidence: Medium · Source: FCC ULS · As of 2026-09-12

KG0MZ callsign genealogy

Currently held by ZIEGLER, MARK R

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 KG0MZ's current licensee, walking backwards.

  1. WB5WJVcancelled· E
    ZIEGLER, MARK RIAgranted 2012-11-15cancelled 2017-02-07

Successor callsigns

Callsigns held now by people who previously held KG0MZ.

  1. AD0IAactive· E
    SULLIVAN, JOHN DKSgranted 2025-02-20
  2. NB5Kcancelled· E
    ZIEGLER, MARK RIAgranted 2019-07-12cancelled 2019-11-13

All historical holders

Every license row we've seen with the callsign KG0MZ, oldest first.

  • SULLIVAN, JOHN D KS
    2014-03-14 → cancelled 2014-04-04
  • ZIEGLER, MARK R IA
    2017-02-07 → cancelled 2019-07-12
← Back to KG0MZ License history →