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

AC4DB callsign genealogy

Currently held by Ball, David P

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 AC4DB's current licensee, walking backwards.

  1. N1ELQcancelled· E
    Ball, David PFLgranted 2016-07-13cancelled 2024-04-23

Successor callsigns

Callsigns held now by people who previously held AC4DB.

  1. KT4LAcancelled· E
    BOWMAN, DAVID HALgranted 2008-01-15cancelled 2010-03-26
  2. WS3Ncancelled· E
    JOHNSON, MARK DPAgranted 1991-10-22cancelled 2001-01-31

All historical holders

Every license row we've seen with the callsign AC4DB, oldest first.

  • BOWMAN, DAVID H AL
    2007-11-27 → cancelled 2008-01-15
  • BOWMAN, DAVID H AL
    2010-03-26 → cancelled 2022-03-29
  • Ball, David P FL
    2024-04-23 active
← Back to AC4DB License history →