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

WD0M callsign genealogy

Currently held by HANNIGAN, JOSEPH C

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 WD0M's current licensee, walking backwards.

  1. WL7Mactive· E
    Howard, George MFLgranted 2023-10-24
  2. KL7ITcancelled· E
    Howard, George MAKgranted 2017-02-24cancelled 2023-10-24
  3. NW4Gactive· E
    Spears, Terrel JSCgranted 2019-03-16
  4. KN4PNHcancelled· E
    Spears, Terrel JSCgranted 2018-10-11cancelled 2019-03-16

Successor callsigns

Callsigns held now by people who previously held WD0M.

  1. N3VPcancelled· E
    GEER, CHARLES PMNgranted 2000-04-28cancelled 2000-06-27

All historical holders

Every license row we've seen with the callsign WD0M, oldest first.

  • GEER, CHARLES P MN
    1997-09-12 → cancelled 2000-04-28
  • HANNIGAN, JOSEPH C CO
    2023-03-02 active
← Back to WD0M License history →