uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-14

WA6BTK callsign genealogy

Currently held by Clark, Stuart I

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 WA6BTK's current licensee, walking backwards.

  1. KS7TUcancelled· E
    Clark, Stuart IWAgranted 2020-11-28cancelled 2021-07-09
  2. KC7SCcancelled· E
    Clark, Stuart IWAgranted 2019-10-29cancelled 2020-11-28

Successor callsigns

Callsigns held now by people who previously held WA6BTK.

  1. KC7SCcancelled· E
    Clark, Stuart IWAgranted 2019-10-29cancelled 2020-11-28
  2. AD4MTcancelled· E
    Clark, Stuart ICAgranted 2010-12-31cancelled 2011-12-02
  3. K6AXVcancelled· E
    Clark, Stuart ICAgranted 2007-05-15cancelled 2007-08-29
  4. KI4BROcancelled· G
    Clark, Stuart IKYgranted 2005-03-23cancelled 2006-04-18

All historical holders

Every license row we've seen with the callsign WA6BTK, oldest first.

  • Clark, Stuart I KY
    1996-08-09 → cancelled 2003-07-29
  • Clark, Stuart I CA
    2006-04-18 → cancelled 2007-05-15
  • Clark, Stuart I CA
    2007-08-29 → cancelled 2010-12-31
  • Clark, Stuart I CA
    2015-12-18 → cancelled 2019-10-29
  • Clark, Stuart I CA
    2021-07-09 active
← Back to WA6BTK License history →