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

K7ZF callsign genealogy

Currently held by WELCH, S W

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 K7ZF's current licensee, walking backwards.

  1. AB2TFcancelled· E
    Fichtemaier, ToddCOgranted 2020-06-05cancelled 2022-12-06
  2. AD2ANcancelled· E
    Fichtgmaier, ToddNYgranted 2020-05-18cancelled 2020-06-05

Successor callsigns

Callsigns held now by people who previously held K7ZF.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign K7ZF, oldest first.

  • WELCH, S W WA
    1998-10-27 → cancelled 2010-10-28
  • CAMPING AND EXPLORATION SOCIETY CA
    2010-11-16 → cancelled 2022-11-17
  • Fichtemaier, Todd CO
    2022-12-06 active
← Back to K7ZF License history →