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

NU4M callsign genealogy

Currently held by Seckinger, Donald G

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 NU4M's current licensee, walking backwards.

  1. W4KKYactive· G
    Zhurbich, Paul NKYgranted 2021-03-12
  2. KO4EPScancelled· G
    Zhurbich, Paul NKYgranted 2020-06-24cancelled 2021-03-12

Successor callsigns

Callsigns held now by people who previously held NU4M.

  1. W4KKYcancelled· E
    Seckinger, Donald GGAgranted 2016-09-02cancelled 2017-12-01

All historical holders

Every license row we've seen with the callsign NU4M, oldest first.

  • SARGENT, TIMOTHY W FL
    1996-08-05 → cancelled 2008-08-06
  • Seckinger, Donald G GA
    2008-08-30 → cancelled 2016-09-02
  • Seckinger, Donald G GA
    2017-12-01 active
← Back to NU4M License history →