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

K7JRT callsign genealogy

Currently held by THOMPSON, JOHN R

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 K7JRT's current licensee, walking backwards.

  1. KI7JAYactive· T
    Biggs, Jay AWAgranted 2020-12-29
  2. KJ7SWNcancelled· T
    Biggs, Jay AWAgranted 2020-12-10cancelled 2020-12-29

Successor callsigns

Callsigns held now by people who previously held K7JRT.

  1. WB4JRTcancelled· G
    THOMPSON, JOHN RFLgranted 2010-11-30cancelled 2010-12-21

All historical holders

Every license row we've seen with the callsign K7JRT, oldest first.

  • THOMPSON, JOHN R FL
    2001-03-02 → cancelled 2010-11-30
  • Trott, James R WA
    2017-02-04 active
← Back to K7JRT License history →