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Confidence: Medium · Source: FCC ULS · As of 2026-09-11

WW7JS callsign genealogy

Currently held by Sobeck, John A

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 WW7JS's current licensee, walking backwards.

  1. W6TCactive· E
    Dorfan, Joel KCAgranted 2017-03-20
  2. AI6UYcancelled· E
    Dorfan, Joel KCAgranted 2014-04-21cancelled 2017-03-20
  3. KK6LKYcancelled· E
    Dorfan, Joel KCAgranted 2014-04-21cancelled 2017-01-30

Successor callsigns

Callsigns held now by people who previously held WW7JS.

  1. KW7JSexpired· A
    SCHWINGE, JAMES RWAgranted 2013-03-16cancelled 2025-04-30

All historical holders

Every license row we've seen with the callsign WW7JS, oldest first.

  • SCHWINGE, JAMES R WA
    2001-01-05 → cancelled 2003-04-29
  • Sobeck, John A WA
    2024-12-04 active