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

N4JO callsign genealogy

Currently held by Camp Sr, Ellis 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 N4JO's current licensee, walking backwards.

  1. AJ0Sactive· E
    Rosburg, Dennis LNEgranted 2021-07-02
  2. KE0WUEcancelled· E
    Rosburg, Dennis LNEgranted 2019-09-13cancelled 2021-07-02

Successor callsigns

Callsigns held now by people who previously held N4JO.

  1. K4DCactive· E
    OWEN, JOHN OGAgranted 2016-02-09
  2. WX9Oexpired· E
    SOUHRADA SR, JOSEPH AFLgranted 2000-06-20cancelled 2012-06-21

All historical holders

Every license row we've seen with the callsign N4JO, oldest first.

  • SOUHRADA, JOSEPH A FL
    1996-12-18 → cancelled 2000-06-20
  • OWEN, JOHN O GA
    2002-07-09 → cancelled 2006-02-10
  • Camp Sr, Ellis J GA
    2008-02-29 → cancelled 2017-05-01
  • Opificius, Julian A MN
    2019-05-21 active
← Back to N4JO License history →