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

NZ4C callsign genealogy

Currently held by OLSON, JOHN W

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 NZ4C's current licensee, walking backwards.

  1. W4OHactive· E
    MATHISON, TIMOTHY DFLgranted 2022-02-12
  2. AA4WHcancelled· E
    MATHISON, TIMOTHY DFLgranted 2021-02-17cancelled 2022-02-12
  3. W4EKPcancelled· E
    MATHISON, TIMOTHY DFLgranted 2020-08-28cancelled 2021-02-17
  4. KO4FXHcancelled· G
    MATHISON, TIMOTHY DFLgranted 2020-08-03cancelled 2020-08-28

Successor callsigns

Callsigns held now by people who previously held NZ4C.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign NZ4C, oldest first.

  • OLSON, JOHN W TN
    2016-06-16 → cancelled 2018-01-05
  • SAMPSON, DARYL E NC
    2020-01-24 active
← Back to NZ4C License history →