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

NN4JJ callsign genealogy

Currently held by PARKER JR, JACK 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 NN4JJ's current licensee, walking backwards.

  1. KO4MOHcancelled· E
    Smith, Michael AFLgranted 2021-02-16cancelled 2022-02-18

Successor callsigns

Callsigns held now by people who previously held NN4JJ.

  1. W4JJactive· E
    PARKER JR, JACK WVAgranted 2018-03-20

All historical holders

Every license row we've seen with the callsign NN4JJ, oldest first.

  • JUMP, RICHARD W FL
    2008-07-26 → cancelled 2020-07-28
  • Smith, Michael A FL
    2022-02-18 active
  • PARKER JR, JACK W
    — → cancelled 1998-06-10
← Back to NN4JJ License history →