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

KD9NW callsign genealogy

Currently held by Mueller, Steven J

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 KD9NW's current licensee, walking backwards.

  1. AC9FYcancelled· E
    Mueller, Steven JWIgranted 2012-11-27cancelled 2014-07-25
  2. KC9WXCcancelled· E
    Mueller, Steven JWIgranted 2012-11-27cancelled 2013-07-29

Successor callsigns

Callsigns held now by people who previously held KD9NW.

No current licensee on record previously held this callsign.

← Back to KD9NW License history →