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

N0SDF callsign genealogy

Currently held by 41ST REG OREGON STATE DEFENSE FORCE

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 N0SDF's current licensee, walking backwards.

  1. KI6PDBcancelled
    41ST REG OREGON STATE DEFENSE FORCECAgranted 2008-03-05cancelled 2008-03-25

Successor callsigns

Callsigns held now by people who previously held N0SDF.

  1. K0CPCactive
    41ST REG OREGON STATE DEFENSE FORCECAgranted 2017-04-18

All historical holders

Every license row we've seen with the callsign N0SDF, oldest first.

  • CARTNER, ROBERT F SD
    1992-04-21 → cancelled 2004-04-22
  • 41ST REG OREGON STATE DEFENSE FORCE CA
    2008-03-25 → cancelled 2017-04-18
← Back to N0SDF License history →