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

KZ1AP callsign genealogy

Currently held by Helms, Gregory P

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 KZ1AP's current licensee, walking backwards.

  1. NT1Sactive· E
    Schroder, Robert TMDgranted 2023-05-13
  2. N2RTScancelled· E
    Schroder, Robert TCTgranted 2021-09-04cancelled 2023-05-13
  3. KO4SQTcancelled· T
    Schroder, Robert TVAgranted 2021-08-17cancelled 2021-09-04

Successor callsigns

Callsigns held now by people who previously held KZ1AP.

  1. NT1Scancelled· E
    Helms, Gregory PMEgranted 2020-11-24cancelled 2021-04-24
← Back to KZ1AP License history →