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

WO1FIE callsign genealogy

Currently held by Manternach, Bryan S

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 WO1FIE's current licensee, walking backwards.

  1. KG6KJYcancelled· T
    Manternach, Bryan SCAgranted 2002-03-15cancelled 2002-11-16

Successor callsigns

Callsigns held now by people who previously held WO1FIE.

No current licensee on record previously held this callsign.