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

K9WDW callsign genealogy

Currently held by Nichols, Daniel E

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 K9WDW's current licensee, walking backwards.

  1. KD9WDWcancelled· E
    NICHOLS, DANIELILgranted 2022-12-06cancelled 2024-06-18

Successor callsigns

Callsigns held now by people who previously held K9WDW.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign K9WDW, oldest first.

  • VANDERWALL, CLIFFORD C WI
    2006-04-05 → cancelled 2018-06-29
  • Nichols, Daniel E MO
    2024-06-18 active