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

KO5R callsign genealogy

Currently held by WILLARD, 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 KO5R's current licensee, walking backwards.

  1. W5KDWactive· T
    WHITLEY, KAREN DTXgranted 2025-06-17
  2. KJ5IMPcancelled· T
    WHITLEY, KAREN DTXgranted 2024-10-22cancelled 2025-06-17

Successor callsigns

Callsigns held now by people who previously held KO5R.

  1. W5KDWcancelled· E
    WILLARD, WILLIAM DARgranted 2017-06-13cancelled 2018-06-08

All historical holders

Every license row we've seen with the callsign KO5R, oldest first.

  • Knabb, Wayne M LA
    2006-03-06 → cancelled 2006-03-21
  • WILLARD, WILLIAM D AR
    2010-12-21 → cancelled 2017-06-13
  • WILLARD, WILLIAM D AR
    2018-06-08 active
← Back to KO5R License history →