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

K6RDC callsign genealogy

Currently held by LocoLabs Amateur Radio Club

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 K6RDC's current licensee, walking backwards.

  1. KA7RDCcancelled· G
    Cullumber, Roger DCAgranted 2011-07-15cancelled 2021-04-09
  2. KF7QLAcancelled· G
    Cullumber, Roger DUTgranted 2011-06-15cancelled 2011-07-15

Successor callsigns

Callsigns held now by people who previously held K6RDC.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign K6RDC, oldest first.

  • LocoLabs Amateur Radio Club CA
    2006-07-18 → cancelled 2018-07-19
  • Cullumber, Roger D CA
    2021-04-09 active
← Back to K6RDC License history →