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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

K7AU callsign genealogy

Currently held by Kalkwarf, Robert 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 K7AU's current licensee, walking backwards.

  1. W7WOactive· E
    JERVIS, ELLENWAgranted 2018-04-20
  2. KB1VYLcancelled· E
    JERVIS, ELLENWAgranted 2011-07-22cancelled 2018-04-20

Successor callsigns

Callsigns held now by people who previously held K7AU.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign K7AU, oldest first.

  • Ehrlich, Murray WA
    2004-09-09 → cancelled 2014-02-28
  • Wade, Dale A AZ
    2016-03-19 → cancelled 2016-03-31
  • Kalkwarf, Robert L WA
    2026-01-27 active
← Back to K7AU License history →