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

AF4UB callsign genealogy

Currently held by Schantz, Douglas Darren D

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 AF4UB's current licensee, walking backwards.

  1. KU4OPcancelled· A
    SCHANTZ, DOUGLAS DKYgranted 1998-02-08cancelled 2000-05-18
  2. KB9IGDcancelled
    cancelled 1998-02-08

Successor callsigns

Callsigns held now by people who previously held AF4UB.

  1. K4ETSactive· E
    SCHANTZ, DOUGLAS DARREN DKYgranted 2025-06-04
← Back to AF4UB License history →