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

W0RIO callsign genealogy

Currently held by COOK, GALEN F

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 W0RIO's current licensee, walking backwards.

  1. WB0RIOcancelled· E
    COOK, GALEN FCOgranted 2016-05-06cancelled 2019-05-21

Successor callsigns

Callsigns held now by people who previously held W0RIO.

  1. K2ZLTcancelled· G
    WAGNER, STUART RCAgranted 1999-11-20cancelled 2005-05-13

All historical holders

Every license row we've seen with the callsign W0RIO, oldest first.

  • WAGNER, STUART R MA
    1994-11-22 → cancelled 1999-11-20
  • COOK, GALEN F CO
    2019-05-21 active