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

AB9DL callsign genealogy

Currently held by Piva, William J

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 AB9DL's current licensee, walking backwards.

  1. KC9DALcancelled· E
    LUCAS, DAVID AILgranted 2015-02-10cancelled 2016-08-06
  2. KC9CZKcancelled· T
    LUCAS, DAVID AILgranted 2012-10-02cancelled 2015-02-10

Successor callsigns

Callsigns held now by people who previously held AB9DL.

  1. NN9Hcancelled· E
    Piva, William JILgranted 2002-04-09cancelled 2004-06-22

All historical holders

Every license row we've seen with the callsign AB9DL, oldest first.

  • Piva, William J IL
    2000-07-18 → cancelled 2002-04-09
  • LUCAS, DAVID A IL
    2026-05-28 active
← Back to AB9DL License history →