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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

K7KKR callsign genealogy

Currently held by THOMAS, CHADD

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 K7KKR's current licensee, walking backwards.

  1. KD7KDKcancelled· E
    Warburton, Rob LNVgranted 2018-07-06cancelled 2020-03-07
  2. KI7YRPcancelled· T
    Warburton, Rob LNVgranted 2018-06-04cancelled 2018-07-06

Successor callsigns

Callsigns held now by people who previously held K7KKR.

  1. KF7FZWactive· T
    THOMAS MR, CHADD PWAgranted 2015-09-18

All historical holders

Every license row we've seen with the callsign K7KKR, oldest first.

  • THOMAS, CHADD WA
    2010-08-17 → cancelled 2015-09-18
  • Warburton, Rob L NV
    2020-03-07 active
← Back to K7KKR License history →