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Confidence: Medium · Source: FCC ULS · As of 2026-09-15

W6KGO callsign genealogy

Currently held by COSTA, CARL M

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 W6KGO's current licensee, walking backwards.

  1. K6CMCactive· G
    CLEMENTS, CHARLES MCAgranted 2016-11-01
  2. KA6CMCcancelled· T
    CLEMENTS, CHARLES MCAgranted 2004-09-21cancelled 2006-01-27
  3. KG6UPLcancelled· T
    CLEMENTS, CHARLES MCAgranted 2004-04-02cancelled 2004-09-21

Successor callsigns

Callsigns held now by people who previously held W6KGO.

  1. K6CMCcancelled· T
    COSTA, CARL MCAgranted 2002-12-14cancelled 2004-01-06

All historical holders

Every license row we've seen with the callsign W6KGO, oldest first.

  • COSTA, CARL M CA
    2002-11-23 → cancelled 2002-12-14
  • COSTA, CARL M CA
    2024-01-09 active
← Back to W6KGO License history →