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

N3CRO callsign genealogy

Currently held by Baumgardner, Jonathan A

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 N3CRO's current licensee, walking backwards.

  1. KN4PTAcancelled· E
    Selph, Logan PNCgranted 2018-10-18cancelled 2024-06-28

Successor callsigns

Callsigns held now by people who previously held N3CRO.

  1. AB0Uactive· E
    Baumgardner, Jonathan ACOgranted 2020-03-28
  2. W3JPNactive· A
    AOKI, AKIHIROAKgranted 2017-09-09

All historical holders

Every license row we've seen with the callsign N3CRO, oldest first.

  • Baumgardner, Jonathan A CO
    2018-02-23 → cancelled 2020-03-28
  • Selph, Logan P NC
    2024-06-28 active
  • —
    — → cancelled 1997-10-15
← Back to N3CRO License history →