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

AF4MJ callsign genealogy

Currently held by JOHNSON, FLORIAN M

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 AF4MJ's current licensee, walking backwards.

  1. K4ZFDactive
    ZONETON FIRE DISTRICTKYgranted 2021-08-03
  2. KF4LWIcancelled
    ZONETON FIRE DISTRICTKYgranted 1996-09-05cancelled 2001-10-02

Successor callsigns

Callsigns held now by people who previously held AF4MJ.

  1. N7ZFDcancelled· E
    JOHNSON, FLORIAN MNCgranted 2002-09-05cancelled 2003-01-31
← Back to AF4MJ License history →