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

W4TPM callsign genealogy

Currently held by SHOLAR, DAVID G

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 W4TPM's current licensee, walking backwards.

  1. W4DGSactive· G
    STEELE, DANNY GFLgranted 2021-04-26
  2. K8ATEactive· G
    Martin, DennisCAgranted 2024-06-11
  3. KO6ETJcancelled· G
    Martin, DennisCAgranted 2024-05-23cancelled 2024-06-11

Successor callsigns

Callsigns held now by people who previously held W4TPM.

  1. K1CRIcancelled· G
    SHOLAR, DAVID GMOgranted 2009-02-20cancelled 2011-04-26
← Back to W4TPM License history →