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

KD1Y callsign genealogy

Currently held by KIEBALA JR, JOSEPH

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 KD1Y's current licensee, walking backwards.

  1. AK4CYcancelled· E
    Ferguson, Brete RFLgranted 2010-10-30cancelled 2010-12-10
  2. W8BRFcancelled· E
    Ferguson, Brete RFLgranted 2001-01-27cancelled 2010-10-22
  3. AE4FMcancelled· E
    FERGUSON, BRETE ROHgranted 1998-07-28cancelled 2001-01-27

Successor callsigns

Callsigns held now by people who previously held KD1Y.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign KD1Y, oldest first.

  • KIEBALA JR, JOSEPH MA
    1995-12-11 → cancelled 2002-02-26
  • Ferguson, Brete R KS
    2020-09-12 active
← Back to KD1Y License history →