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

WB8XT callsign genealogy

Currently held by Groth, Martin

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 WB8XT's current licensee, walking backwards.

  1. AI4XUcancelled· E
    Groth, MartinTNgranted 2007-04-30cancelled 2016-11-01

Successor callsigns

Callsigns held now by people who previously held WB8XT.

No current licensee on record previously held this callsign.