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

NX3U callsign genealogy

Currently held by SHULER, HAROLD

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 NX3U's current licensee, walking backwards.

  1. KC3VWJcancelled· E
    SPICER, ROBERT ADEgranted 2023-04-07cancelled 2023-08-01

Successor callsigns

Callsigns held now by people who previously held NX3U.

  1. WK9Ractive
    INDIANA DX AND CONTEST CLUBINgranted 2021-07-13

All historical holders

Every license row we've seen with the callsign NX3U, oldest first.

  • SHULER, HAROLD PA
    1999-12-15 → cancelled 2012-01-04
  • INDIANA DX AND CONTEST CLUB IN
    2012-10-13 → cancelled 2021-07-13
  • SPICER, ROBERT A DE
    2023-08-01 active
← Back to NX3U License history →