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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

WO5A callsign genealogy

Currently held by MAULDIN, DAVID 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 WO5A's current licensee, walking backwards.

  1. NZ5Jcancelled· E
    Fiedler, Robert WTXgranted 2024-11-26cancelled 2026-03-13
  2. K5FXDcancelled· E
    Fiedler, Robert WTXgranted 2024-05-21cancelled 2024-11-26
  3. KJ5FXDcancelled· G
    Fiedler, Robert WTXgranted 2024-04-18cancelled 2024-05-21

Successor callsigns

Callsigns held now by people who previously held WO5A.

  1. NO5Tactive· E
    MAULDIN, DAVID LTXgranted 2024-01-13

All historical holders

Every license row we've seen with the callsign WO5A, oldest first.

  • CHALONER, ROY L AR
    2011-08-23 → cancelled 2023-11-21
  • MAULDIN, DAVID L TX
    2023-12-08 → cancelled 2024-01-13
  • Fiedler, Robert W TX
    2026-03-13 active
← Back to WO5A License history →