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

N3JO callsign genealogy

Currently held by OLSEN, JACOB

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 N3JO's current licensee, walking backwards.

  1. N3JOVactive· T
    Walker, Dylan BPAgranted 2019-04-12
  2. KC3NDOcancelled· T
    Walker, Dylan BPAgranted 2019-03-22cancelled 2019-04-12

Successor callsigns

Callsigns held now by people who previously held N3JO.

  1. K2JOactive· E
    Craven, Andrew DFLgranted 2017-10-31

All historical holders

Every license row we've seen with the callsign N3JO, oldest first.

  • OLSEN, JACOB PA
    1996-12-24 → cancelled 2001-05-08
  • Craven, Andrew D NY
    2007-03-30 → cancelled 2008-01-25
  • Walker, Bruce FL
    2019-12-12 active
← Back to N3JO License history →