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

WA6TBC callsign genealogy

Currently held by BRETZ, WILLIAM E

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 WA6TBC's current licensee, walking backwards.

  1. KC5ZVXcancelled· G
    BRETZ, WILLIAM ETXgranted 1998-10-23cancelled 2003-03-25

Successor callsigns

Callsigns held now by people who previously held WA6TBC.

  1. W6TBCactive· E
    BRETZ, WILLIAM ENMgranted 2018-05-10