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

K6CMC callsign genealogy

Currently held by CLEMENTS, CHARLES 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 K6CMC's current licensee, walking backwards.

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

Successor callsigns

Callsigns held now by people who previously held K6CMC.

  1. W6KGOactive· T
    COSTA, CARL MCAgranted 2024-01-09

All historical holders

Every license row we've seen with the callsign K6CMC, oldest first.

  • COSTA, CARL M CA
    2002-12-14 → cancelled 2004-01-06
  • CLEMENTS, CHARLES M CA
    2016-11-01 active
← Back to K6CMC License history →