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

K9OR callsign genealogy

Currently held by HUMMER, WILLIAM 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 K9OR's current licensee, walking backwards.

  1. KE9Mactive· E
    MILLER, LONNIE WILgranted 2025-11-26
  2. KA9WONcancelled· E
    MILLER, LONNIE WILgranted 2008-02-07cancelled 2015-12-04

Successor callsigns

Callsigns held now by people who previously held K9OR.

  1. N9FXWcancelled· E
    HUMMER, WILLIAM DINgranted 1998-11-12cancelled 2003-11-25

All historical holders

Every license row we've seen with the callsign K9OR, oldest first.

  • BROTHERS, RANDALL B CO
    2020-12-02 active
  • HUMMER, WILLIAM D
    — → cancelled 1998-11-12
← Back to K9OR License history →