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

W4CSU callsign genealogy

Currently held by IRELAND, WINFIELD E

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 W4CSU's current licensee, walking backwards.

  1. NR0Uactive· E
    Cross, Lance GAZgranted 2022-03-02
  2. K0URNcancelled· E
    Cross, Lance GCOgranted 2004-06-16cancelled 2012-03-13
  3. KC0PBPcancelled· G
    Cross, Lance GCOgranted 2003-02-11cancelled 2004-06-16

Successor callsigns

Callsigns held now by people who previously held W4CSU.

  1. NT0Acancelled· E
    IRELAND, WINFIELD ECOgranted 2024-03-09cancelled 2024-05-29
← Back to W4CSU License history →