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

N4QZI callsign genealogy

Currently held by PETROCCI, MARY ANN 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 N4QZI's current licensee, walking backwards.

  1. N4GOZcancelled· E
    SCHNEIDER SR, DAVID EFLgranted 2013-07-13cancelled 2023-01-24
  2. K2DESactive· T
    Szczech, Dwayne EFLgranted 2017-02-22
  3. KJ4GBXcancelled· T
    Szczech, Dwayne EFLgranted 2008-08-20cancelled 2017-02-22

Successor callsigns

Callsigns held now by people who previously held N4QZI.

  1. AA2DScancelled· E
    SCHNEIDER SR, DAVID EFLgranted 2024-04-20cancelled 2025-06-21

All historical holders

Every license row we've seen with the callsign N4QZI, oldest first.

  • PETROCCI, MARY ANN J FL
    1987-08-11 → cancelled 1999-08-16
  • SCHNEIDER SR, DAVID E FL
    2023-01-24 → cancelled 2024-04-20
← Back to N4QZI License history →