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

KC1TA callsign genealogy

Currently held by ACHTEMICHUK, THOMAS M

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 KC1TA's current licensee, walking backwards.

  1. W0ZIOcancelled· E
    ACHTEMICHUK, THOMAS MMAgranted 2016-08-09cancelled 2017-07-29
  2. KC1GBCcancelled· G
    ACHTEMICHUK, THOMAS MMAgranted 2016-07-21cancelled 2016-08-09

Successor callsigns

Callsigns held now by people who previously held KC1TA.

  1. K1IZcancelled· E
    THORNTON, RICHARD ENCgranted 2012-12-18cancelled 2019-02-12
  2. KC7TAcancelled· E
    THORNTON, RICHARD ENVgranted 2008-07-08cancelled 2011-07-26

All historical holders

Every license row we've seen with the callsign KC1TA, oldest first.

  • THORNTON, RICHARD E NV
    2000-01-11 → cancelled 2008-07-08
  • THORNTON, RICHARD E MA
    2011-07-26 → cancelled 2012-12-18
  • ACHTEMICHUK, THOMAS M ME
    2017-07-29 active