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

K6RDR callsign genealogy

Currently held by Labrie, Jon E

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 K6RDR's current licensee, walking backwards.

  1. KN6DGDcancelled· T
    Labrie, Jon ECAgranted 2019-07-22cancelled 2019-08-09

Successor callsigns

Callsigns held now by people who previously held K6RDR.

  1. N6BDcancelled· E
    DEL ROSARIO, ROMEO RCAgranted 2004-11-02cancelled 2006-01-28
  2. WI6Rcancelled· E
    DEL ROSARIO, ROMEO RCAgranted 2003-04-08cancelled 2003-10-15
  3. K7LYIcancelled· A
    BUTLER, BUD LUTgranted 1997-05-13cancelled 2000-08-11

All historical holders

Every license row we've seen with the callsign K6RDR, oldest first.

  • DEL ROSARIO, ROMEO R CA
    2001-01-27 → cancelled 2003-04-08
  • DEL ROSARIO, ROMEO R CA
    2003-10-15 → cancelled 2004-11-02
  • Labrie, Jon E CA
    2019-08-09 active
← Back to K6RDR License history →