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

KX4JM callsign genealogy

Currently held by MOULDER, JERRY 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 KX4JM's current licensee, walking backwards.

  1. KV4IGcancelled· A
    MOULDER, JERRY MNCgranted 2007-08-21cancelled 2014-01-10
  2. KX7JMactive· E
    MILLER, JOHN CWAgranted 2019-07-16
  3. W0JCMactive· E
    Mattson, Jamie CNDgranted 2023-07-15
  4. KF0MFZcancelled· G
    Mattson, Jamie CNDgranted 2023-04-11cancelled 2023-07-15

Successor callsigns

Callsigns held now by people who previously held KX4JM.

No current licensee on record previously held this callsign.

← Back to KX4JM License history →