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

N1ZS callsign genealogy

Currently held by Szentmiklosy, David J

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 N1ZS's current licensee, walking backwards.

  1. KB7ASHcancelled· E
    Miller, Ashley ANJgranted 2017-11-17cancelled 2023-06-02
  2. KC3FCWcancelled· G
    Miller, Ashley ANJgranted 2015-06-16cancelled 2017-11-17
  3. KC2ZBNcancelled· G
    Miller, Ashley AMDgranted 2010-08-17cancelled 2015-06-16

Successor callsigns

Callsigns held now by people who previously held N1ZS.

  1. WW1MWactive· E
    Szentmiklosy, David JCTgranted 2025-06-06
  2. W1TBactive· E
    Palmieri, Nicholas DMAgranted 2021-05-11
  3. W1OSactive· E
    FEHNEL, DAVID MCTgranted 2018-12-04

All historical holders

Every license row we've seen with the callsign N1ZS, oldest first.

  • Szentmiklosy, David J CT
    2013-09-14 → cancelled 2015-05-05
  • FEHNEL, DAVID M CT
    2017-05-26 → cancelled 2018-12-04
  • Palmieri, Nicholas D MA
    2020-12-29 → cancelled 2021-05-11
  • Miller, Ashley A NJ
    2023-06-02 active
← Back to N1ZS License history →