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

WC4J callsign genealogy

Currently held by Cochran, Jack B

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 WC4J's current licensee, walking backwards.

  1. N8FKactive· E
    Zaffi, PaoloSCgranted 2016-10-06
  2. AI4SEcancelled· E
    Zaffi, PaoloSCgranted 2005-10-12cancelled 2006-10-31
  3. KI4MAYcancelled· E
    Zaffi, PaoloSCgranted 2005-10-12cancelled 2006-10-10

Successor callsigns

Callsigns held now by people who previously held WC4J.

  1. K3EBQcancelled· E
    BOLLINGER, DAVID AMDgranted 2002-05-24cancelled 2005-09-13

All historical holders

Every license row we've seen with the callsign WC4J, oldest first.

  • BOLLINGER, DAVID A VA
    1997-07-02 → cancelled 2002-05-24
  • Cochran, Jack B VA
    2024-04-11 active
← Back to WC4J License history →