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

AC4ER callsign genealogy

Currently held by COWART, WILLIAM L

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 AC4ER's current licensee, walking backwards.

  1. AC9HLcancelled· E
    Henry, David BFLgranted 2024-03-21cancelled 2024-08-16
  2. KC9GFNcancelled· E
    Henry, David BINgranted 2004-06-16cancelled 2014-02-13

Successor callsigns

Callsigns held now by people who previously held AC4ER.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign AC4ER, oldest first.

  • COWART, WILLIAM L GA
    2011-01-11 → cancelled 2023-04-11
  • Henry, David B FL
    2024-08-16 active
← Back to AC4ER License history →