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

WR0H callsign genealogy

Currently held by VINCENT, SHAWN 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 WR0H's current licensee, walking backwards.

  1. W0WZZcancelled· E
    VINCENT, SHAWN MKSgranted 2015-09-01cancelled 2023-07-11
  2. KB0NHTcancelled· G
    VINCENT, SHAWN MKSgranted 2014-07-08cancelled 2015-09-01

Successor callsigns

Callsigns held now by people who previously held WR0H.

  1. N0VTactive· E
    HARRINGTON, WILLIAM RMOgranted 2020-12-11

All historical holders

Every license row we've seen with the callsign WR0H, oldest first.

  • Dryer, Jack P MO
    2008-12-17 → cancelled 2016-08-30
  • HARRINGTON, WILLIAM R MO
    2018-09-18 → cancelled 2020-12-11
  • VINCENT, SHAWN M KS
    2023-07-11 active