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

NF3U callsign genealogy

Currently held by LOGSDON, 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 NF3U's current licensee, walking backwards.

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

Successor callsigns

Callsigns held now by people who previously held NF3U.

  1. AA3Oactive· E
    ZENZEL JR, DANIELPAgranted 2021-09-15
  2. K3VTactive· E
    Sapienza, Nicholas SMDgranted 2021-02-09
  3. WF4Gactive· E
    LOGSDON, DAVID JFLgranted 2017-09-26

All historical holders

Every license row we've seen with the callsign NF3U, oldest first.

  • ZENZEL JR, DANIEL PA
    2011-05-27 → cancelled 2011-12-13
  • LOGSDON, DAVID J FL
    2014-02-21 → cancelled 2017-09-26
  • Sapienza, Nicholas S VA
    2020-05-12 → cancelled 2021-02-09
  • Stachelek, Conrad J PA
    2023-03-24 active
← Back to NF3U License history →