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

KB4AEP callsign genealogy

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 KB4AEP's current licensee, walking backwards.

  1. W4UDXactive· G
    ABEL, MARK JKYgranted 2024-02-16
  2. W3NPAcancelled· G
    ABEL, MARK JKYgranted 2023-05-05cancelled 2024-02-16

Successor callsigns

Callsigns held now by people who previously held KB4AEP.

  1. W4UDXcancelled· G
    ABEL, MARK JKYgranted 2019-03-16cancelled 2023-05-05
  2. W4UDXcancelled· G
    ABEL, MARK JKYgranted 1998-12-30cancelled 2008-09-30

All historical holders

Every license row we've seen with the callsign KB4AEP, oldest first.

  • ABEL, MARK J KY
    2018-07-31 → cancelled 2019-03-16
  • —
    — → cancelled 1998-12-30
← Back to KB4AEP License history →