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

NW4DX callsign genealogy

Currently held by Northwest Florida DXers

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 NW4DX's current licensee, walking backwards.

  1. NX7TTcancelled· A
    CAMPBELL, EDWARD LFLgranted 2017-01-05cancelled 2018-01-23
  2. NT4TTactive· E
    Thomas Jr, Claude PFLgranted 2020-04-07
  3. KJ4SAHcancelled· E
    Thomas Jr, Claude PFLgranted 2010-02-09cancelled 2010-04-16

Successor callsigns

Callsigns held now by people who previously held NW4DX.

  1. NX4TTactive· A
    CAMPBELL, EDWARD LFLgranted 2019-01-01

All historical holders

Every license row we've seen with the callsign NW4DX, oldest first.

  • Northwest Florida DXers FL
    2005-08-13 → cancelled 2017-08-15
  • CAMPBELL, EDWARD L FL
    2018-01-23 → cancelled 2019-01-01
← Back to NW4DX License history →