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

WB0SMS callsign genealogy

Currently held by Straub, Stephen 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 WB0SMS's current licensee, walking backwards.

  1. W0SSSactive· A
    KEAN, TIMOTHY LIAgranted 2022-03-22
  2. W0SSOcancelled· A
    KEAN, TIMOTHY LIAgranted 2016-02-12cancelled 2022-03-22
  3. W0HOTcancelled· A
    KEAN, TIMOTHY LIAgranted 2011-08-04cancelled 2016-02-12
  4. WB0VDRcancelled· A
    KEAN, TIMOTHY LIAgranted 1995-02-24cancelled 2001-09-11

Successor callsigns

Callsigns held now by people who previously held WB0SMS.

  1. AD0OEcancelled· E
    HAYES, DUANE PMNgranted 2005-11-18cancelled 2015-05-15

All historical holders

Every license row we've seen with the callsign WB0SMS, oldest first.

  • HAYES, DUANE P MN
    2005-11-18 → cancelled 2015-03-30
  • Straub, Stephen M NE
    2020-03-03 active
← Back to WB0SMS License history →