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

KN3B callsign genealogy

Currently held by ADCOCK, JIM L

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 KN3B's current licensee, walking backwards.

  1. KC3IQQcancelled· E
    Ellis, Brad LPAgranted 2017-02-27cancelled 2019-05-25

Successor callsigns

Callsigns held now by people who previously held KN3B.

  1. N0VAKactive· E
    Novak, Greg AMDgranted 2024-11-13
  2. K0TZactive· E
    Cardoos, Stephen WCAgranted 2017-03-31

All historical holders

Every license row we've seen with the callsign KN3B, oldest first.

  • ADCOCK, JIM L PA
    1987-12-29 → cancelled 1999-12-30
  • Novak, Greg A MD
    2005-06-04 → cancelled 2015-02-07
  • Cardoos, Stephen W CA
    2017-02-28 → cancelled 2017-03-31
  • Ellis, Brad L PA
    2019-05-25 active
← Back to KN3B License history →