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

KC1M callsign genealogy

Currently held by RIGGIN, KAREN 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 KC1M's current licensee, walking backwards.

  1. W4QMTcancelled· E
    MEANS, CALVIN RGAgranted 2018-05-08cancelled 2022-09-17
  2. KN4LREcancelled· T
    Means, Calvin RGAgranted 2018-04-20cancelled 2018-05-08

Successor callsigns

Callsigns held now by people who previously held KC1M.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign KC1M, oldest first.

  • RIGGIN, KAREN M CT
    1987-11-10 → cancelled 1999-11-11
  • MICK, JAMES L MO
    2010-08-25 → cancelled 2022-08-30
  • MEANS, CALVIN R GA
    2022-09-17 active
← Back to KC1M License history →