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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

WX1XX callsign genealogy

Currently held by Curtis, Sidney 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 WX1XX's current licensee, walking backwards.

  1. N1SIDcancelled· E
    Curtis, Sidney DNCgranted 2014-04-01cancelled 2017-06-03
  2. KK4YONcancelled· T
    Curtis, Sidney DNCgranted 2014-02-25cancelled 2014-04-01

Successor callsigns

Callsigns held now by people who previously held WX1XX.

No current licensee on record previously held this callsign.

← Back to WX1XX License history →