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

NU4K callsign genealogy

Currently held by Maniscalco, 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 NU4K's current licensee, walking backwards.

  1. AJ4HOcancelled· E
    Maniscalco, David JTNgranted 2008-02-15cancelled 2010-03-02
  2. KJ4CACcancelled· E
    Maniscalco, David JTNgranted 2008-02-15cancelled 2008-04-23

Successor callsigns

Callsigns held now by people who previously held NU4K.

  1. K5FQcancelled· E
    GUTWEIN, TED AFLgranted 2008-02-09cancelled 2008-06-03

All historical holders

Every license row we've seen with the callsign NU4K, oldest first.

  • GUTWEIN, TED A FL
    1998-08-24 → cancelled 2008-02-09
  • Maniscalco, David J TN
    2020-01-14 active
← Back to NU4K License history →