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

W0CDW callsign genealogy

Currently held by WEERTS, CHARLES 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 W0CDW's current licensee, walking backwards.

  1. KO0Xactive· E
    Montaneaux, Justin JCAgranted 2023-10-18
  2. KJ6ZVUcancelled· E
    Montaneaux, Justin JCAgranted 2012-10-04cancelled 2013-12-03

Successor callsigns

Callsigns held now by people who previously held W0CDW.

  1. KO0Xcancelled· E
    WEERTS, CHARLES DMNgranted 2011-04-19cancelled 2011-10-29

All historical holders

Every license row we've seen with the callsign W0CDW, oldest first.

  • WEERTS, CHARLES D MN
    2000-12-30 → cancelled 2001-04-27
  • WEERTS, CHARLES D MN
    2021-08-09 active
← Back to W0CDW License history →