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

K9WIS callsign genealogy

Currently held by CIESLAK, BRIAN

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 K9WIS's current licensee, walking backwards.

  1. AE9Kactive· E
    Greil, Dan SSCgranted 2024-08-08
  2. K9EMFactive· E
    SIEGEL, MATTHEW DILgranted 2017-02-04
  3. KB9ECJcancelled· G
    SIEGEL, MATTHEW DILgranted 2014-04-05cancelled 2017-02-04
  4. N9JLSactive· E
    Swain, Judith LCAgranted 2020-07-24
  5. KK2JLScancelled· E
    Swain, Judith LCAgranted 2015-05-27cancelled 2020-07-24
  6. KK6TZDcancelled· T
    Swain, Judith LCAgranted 2015-05-05cancelled 2015-05-27

Successor callsigns

Callsigns held now by people who previously held K9WIS.

No current licensee on record previously held this callsign.

← Back to K9WIS License history →