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

KC6C callsign genealogy

Currently held by ADAIR, THOMAS A

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 KC6C's current licensee, walking backwards.

  1. KM6WZTcancelled· E
    Mueller, JuppCAgranted 2018-11-19cancelled 2019-02-02

Successor callsigns

Callsigns held now by people who previously held KC6C.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign KC6C, oldest first.

  • ADAIR, THOMAS A CA
    2006-09-21 → cancelled 2018-12-19
  • Mueller, Jupp CA
    2019-02-02 active