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

NG1S callsign genealogy

Currently held by THOMAS, RALPH J

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 NG1S's current licensee, walking backwards.

  1. KF7BTOcancelled· E
    RASMUSSEN, JAMES PUTgranted 2019-12-04cancelled 2025-12-09

Successor callsigns

Callsigns held now by people who previously held NG1S.

  1. N7SWWactive· E
    Watilo, Steven WWAgranted 2023-10-11
  2. W8CHactive· E
    THOMAS, RALPH JFLgranted 2019-04-27
  3. W6QYcancelled· E
    THOMAS, RALPH JCTgranted 2006-03-21cancelled 2006-09-30

All historical holders

Every license row we've seen with the callsign NG1S, oldest first.

  • THOMAS, RALPH J CT
    1998-10-27 → cancelled 2006-03-21
  • THOMAS, RALPH J FL
    2018-12-19 → cancelled 2019-04-27
  • Watilo, Steven W WA
    2021-05-18 → cancelled 2023-10-11
  • RASMUSSEN, JAMES P UT
    2025-12-09 active
← Back to NG1S License history →