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

KF7FZW 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 KF7FZW's current licensee, walking backwards.

  1. K7KKRactive· E
    Warburton, Rob LNVgranted 2020-03-07
  2. KD7KDKcancelled· E
    Warburton, Rob LNVgranted 2018-07-06cancelled 2020-03-07
  3. KI7YRPcancelled· T
    Warburton, Rob LNVgranted 2018-06-04cancelled 2018-07-06

Successor callsigns

Callsigns held now by people who previously held KF7FZW.

  1. K7KKRcancelled· T
    THOMAS, CHADDWAgranted 2010-08-17cancelled 2015-09-18

All historical holders

Every license row we've seen with the callsign KF7FZW, oldest first.

  • THOMAS, CHADD WA
    2009-11-18 → cancelled 2010-08-17
  • THOMAS MR, CHADD P WA
    2015-09-18 active
← Back to KF7FZW License history →