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

K5THR callsign genealogy

Currently held by Brown, Joseph 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 K5THR's current licensee, walking backwards.

  1. KE2IHAcancelled· T
    Bouquet, EstherNYgranted 2026-04-15cancelled 2026-05-05

Successor callsigns

Callsigns held now by people who previously held K5THR.

  1. KI5ABEcancelled· T
    Brown, Joseph DTXgranted 2016-01-26cancelled 2018-07-17
  2. KG5JDLcancelled· T
    Brown, Joseph DTXgranted 2010-03-06cancelled 2015-09-02
  3. W5SEAcancelled· T
    Brown, Joseph DTXgranted 2007-03-27cancelled 2007-08-23

All historical holders

Every license row we've seen with the callsign K5THR, oldest first.

  • Brown, Joseph D TX
    2005-02-01 → cancelled 2007-03-27
  • Brown, Joseph D TX
    2010-03-06 → cancelled 2015-08-29
  • Brown, Joseph D TX
    2016-01-26 → cancelled 2018-05-30
  • Bouquet, Esther NY
    2026-05-05 active
← Back to K5THR License history →