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

KD0JEF callsign genealogy

Currently held by Dvorak, Jeffrey 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 KD0JEF's current licensee, walking backwards.

  1. KB0JEFcancelled· T
    Dvorak, Jeffrey JMNgranted 2025-08-05cancelled 2025-12-09
  2. KE0YJLcancelled· T
    Dvorak, Jeffrey JMNgranted 2019-11-15cancelled 2025-08-05

Successor callsigns

Callsigns held now by people who previously held KD0JEF.

  1. W0JLKactive· G
    KEEVE, JEFFREY LCOgranted 2023-11-07

All historical holders

Every license row we've seen with the callsign KD0JEF, oldest first.

  • McDowell, Kimberly J MO
    2009-10-21 → cancelled 2021-10-22
  • KEEVE, JEFFREY L CO
    2021-11-20 → cancelled 2023-11-07
  • Dvorak, Jeffrey J MN
    2025-12-09 active
← Back to KD0JEF License history →