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

AF5BT callsign genealogy

Currently held by Bryan, David C

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 AF5BT's current licensee, walking backwards.

  1. KJ5BTcancelled· E
    Thomson, William JOKgranted 2026-03-03cancelled 2026-08-29
  2. KR6Kcancelled· E
    Thomson, William JOKgranted 2017-04-14cancelled 2026-03-03
  3. KO5WTcancelled· E
    Thomson, William JMTgranted 2003-09-30cancelled 2007-05-25
  4. KO6GGcancelled· A
    THOMSON, WILLIAM JNMgranted 1994-08-22cancelled 2003-09-30
  5. WA6IKC
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held AF5BT.

  1. KU5Rcancelled· E
    Bryan, David CARgranted 2012-04-28cancelled 2012-07-13

All historical holders

Every license row we've seen with the callsign AF5BT, oldest first.

  • Bryan, David C AR
    2011-06-03 → cancelled 2012-04-28
  • Thomson, William J OK
    2026-08-29 active
← Back to AF5BT License history →