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

KT4ZL callsign genealogy

Currently held by SCHMELZER, WALTER L

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 KT4ZL's current licensee, walking backwards.

  1. N0ERU
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held KT4ZL.

  1. KM5XWexpired· A
    SCHMELZER, WALTER LOKgranted 1996-12-17cancelled 2008-12-18
← Back to KT4ZL License history →