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

K9ZT callsign genealogy

Currently held by HELMS, KENNETH A

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 K9ZT's current licensee, walking backwards.

  1. AB9ZDcancelled· E
    HELMS, KENNETH ATNgranted 2011-02-01cancelled 2019-04-05
  2. KC9TPFcancelled· E
    HELMS, KENNETH AINgranted 2011-02-01cancelled 2011-05-05

Successor callsigns

Callsigns held now by people who previously held K9ZT.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign K9ZT, oldest first.

  • MORIN JR, DORNIS C WI
    2009-04-18 → cancelled 2017-03-16
  • HELMS, KENNETH A TN
    2019-04-05 active
← Back to K9ZT License history →