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

KZ1Y callsign genealogy

Currently held by HOROWITZ, ALAN M

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 KZ1Y's current licensee, walking backwards.

  1. WS3RVOcancelled· E
    Welch, Dillon JVTgranted 2017-08-25cancelled 2021-09-25
  2. KD1LLRcancelled· T
    Welch, Dillon JVTgranted 2016-03-22cancelled 2017-08-25
  3. KC1FDOcancelled· T
    Welch, Dillon JVTgranted 2016-02-29cancelled 2016-03-22

Successor callsigns

Callsigns held now by people who previously held KZ1Y.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign KZ1Y, oldest first.

  • HOROWITZ, ALAN M FL
    2009-09-02 → cancelled 2021-09-03
  • Welch, Dev J VT
    2021-09-25 active
← Back to KZ1Y License history →