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Confidence: Medium · Source: FCC ULS · As of 2026-09-11

KA6OSS callsign genealogy

Currently held by O'SHAUGHNESSEY, JAMES P

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 KA6OSS's current licensee, walking backwards.

  1. KJ6YDRcancelled· T
    O'SHAUGHNESSEY, JAMES PCAgranted 2012-06-07cancelled 2012-06-26

Successor callsigns

Callsigns held now by people who previously held KA6OSS.

  1. K6OSSactive· T
    O'SHAUGHNESSEY, JAMES PCAgranted 2023-02-07