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

WA2MAD callsign genealogy

Currently held by THOMPSON, DONALD 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 WA2MAD's current licensee, walking backwards.

  1. W5HVOactive· A
    ENDSLEY, SCOTT COKgranted 2022-11-26
  2. W5URXcancelled· A
    ENDSLEY, SCOTT COKgranted 2017-09-09cancelled 2022-11-26
  3. KA5HVOcancelled· A
    ENDSLEY, SCOTT COKgranted 2008-10-31cancelled 2017-09-09

Successor callsigns

Callsigns held now by people who previously held WA2MAD.

  1. W5HVOcancelled· G
    THOMPSON, DONALD LTXgranted 2015-03-31cancelled 2015-11-03

All historical holders

Every license row we've seen with the callsign WA2MAD, oldest first.

  • THOMPSON, DONALD E TX
    1990-03-27 → cancelled 1999-02-19
  • Thompson, Donald L TX
    2012-06-13 → cancelled 2015-03-31
  • THOMPSON, DONALD L TX
    2015-11-03 active