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

N0SWR callsign genealogy

Currently held by WATTERSON, CATHERINE M

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 N0SWR's current licensee, walking backwards.

  1. KD2SPOcancelled
    Elmers Of America ARANYgranted 2019-08-28cancelled 2019-09-17

Successor callsigns

Callsigns held now by people who previously held N0SWR.

  1. N4SWRactive· G
    WATTERSON, CATHERINE MALgranted 2016-08-06

All historical holders

Every license row we've seen with the callsign N0SWR, oldest first.

  • JACOBS, JOHN B IA
    1992-06-02 → cancelled 2004-06-03
  • WATTERSON, CATHERINE M AL
    2016-07-15 → cancelled 2016-08-06
  • Elmers Of America ARA IL
    2019-09-17 active
← Back to N0SWR License history →