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

AA3O callsign genealogy

Currently held by HOUCK, GREGG 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 AA3O's current licensee, walking backwards.

  1. NF3Uactive· E
    Stachelek, Conrad JPAgranted 2023-03-24
  2. W1DTGcancelled· E
    Stachelek, Conrad JPAgranted 2023-02-18cancelled 2023-03-24
  3. KC3UENcancelled· E
    Stachelek, Conrad JPAgranted 2022-05-17cancelled 2023-02-18

Successor callsigns

Callsigns held now by people who previously held AA3O.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign AA3O, oldest first.

  • HOUCK, GREGG A PA
    1999-11-23 → cancelled 2011-11-24
  • ZENZEL JR, DANIEL PA
    2021-09-15 active
← Back to AA3O License history →