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

KA4JSR callsign genealogy

Currently held by Swain, Robert D

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 KA4JSR's current licensee, walking backwards.

  1. N7LUEactive· T
    Rasmussen, Louie AUTgranted 2021-08-02
  2. KD7LLNcancelled· T
    Rasmussen, Louie AUTgranted 2000-12-28cancelled 2001-07-17

Successor callsigns

Callsigns held now by people who previously held KA4JSR.

  1. KJ4SRcancelled· E
    Swain, RobertCAgranted 2013-01-11cancelled 2021-04-27
← Back to KA4JSR License history →