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

AA6TC callsign genealogy

Currently held by WILLIAMS, JAMES B

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 AA6TC's current licensee, walking backwards.

  1. KR6CKTcancelled· E
    Calderwood, Thomas CCAgranted 2011-09-16cancelled 2016-09-24
  2. KR0CKTactive· G
    Chanes, Bryce AWAgranted 2025-03-05
  3. KJ6TECcancelled· T
    Chanes, Bryce ACAgranted 2011-12-16cancelled 2014-08-26

Successor callsigns

Callsigns held now by people who previously held AA6TC.

  1. AG4TCactive· E
    Calderwood, Thomas CTNgranted 2019-02-02

All historical holders

Every license row we've seen with the callsign AA6TC, oldest first.

  • WILLIAMS, JAMES B CA
    1999-12-14 → cancelled 2008-09-29
  • Calderwood, Thomas C CA
    2016-09-24 → cancelled 2019-02-02
← Back to AA6TC License history →