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

K4WMK callsign genealogy

Currently held by Kerber, William 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 K4WMK's current licensee, walking backwards.

  1. N4GDKcancelled· T
    Kerber, William MTNgranted 2006-12-05cancelled 2008-03-29
  2. KG4RVIcancelled· T
    Kerber, William MTNgranted 2002-02-26cancelled 2006-12-05

Successor callsigns

Callsigns held now by people who previously held K4WMK.

  1. N4NBKactive· T
    Kerber, William MNCgranted 2022-01-25
← Back to K4WMK License history →