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

KN4UON callsign genealogy

Currently held by COURTNEY, JEFF W

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 KN4UON's current licensee, walking backwards.

  1. WS4JWCcancelled· T
    COURTNEY, JEFFREY WNCgranted 2019-06-07cancelled 2021-03-23

Successor callsigns

Callsigns held now by people who previously held KN4UON.

  1. WS4JWCcancelled· T
    COURTNEY, JEFFREY WNCgranted 2019-06-07cancelled 2021-03-23

All historical holders

Every license row we've seen with the callsign KN4UON, oldest first.

  • COURTNEY, JEFF W NC
    2019-05-14 → cancelled 2019-06-07
  • COURTNEY, JEFFREY W NC
    2021-03-23 active
← Back to KN4UON License history →