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

K9IW callsign genealogy

Currently held by HARPER, WILLIAM H

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 K9IW's current licensee, walking backwards.

  1. N9CNFactive
    Chequamegon Nicolet National Forest Amateur Radio GroupWIgranted 2020-01-25
  2. KD9ONUcancelled
    Chequamegon Nicolet National Forest Amateur Radio GroupWIgranted 2020-01-07cancelled 2020-01-25

Successor callsigns

Callsigns held now by people who previously held K9IW.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign K9IW, oldest first.

  • HARPER, WILLIAM H AR
    2005-11-08 → cancelled 2013-11-29
  • Harper, Michael E CO
    2024-04-02 active
← Back to K9IW License history →