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

AJ4QF callsign genealogy

Currently held by JOHNSON, WALTER 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 AJ4QF's current licensee, walking backwards.

  1. K4FVWcancelled· E
    JOHNSON, WALTER DNCgranted 2009-04-21cancelled 2009-05-15
  2. KJ4KTPcancelled· G
    JOHNSON, WALTER DNCgranted 2003-05-27cancelled 2009-04-21
  3. KD4LDWcancelled· G
    JOHNSON, WALTER DNCgranted 2003-05-27cancelled 2009-03-30

Successor callsigns

Callsigns held now by people who previously held AJ4QF.

  1. NC3Ocancelled· E
    JOHNSON, WALTER DNCgranted 2009-06-02cancelled 2015-04-17
← Back to AJ4QF License history →