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

K4SBM callsign genealogy

Currently held by VAUGHAN, TERRY W

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 K4SBM's current licensee, walking backwards.

  1. KF4RBcancelled· E
    BRETON, RINGOFLgranted 2021-12-07cancelled 2023-01-27
  2. K2TDRcancelled· E
    BRETON, RINGO EFLgranted 2015-10-09cancelled 2021-12-07
  3. KG4DUFcancelled· E
    BRETON, RINGO EFLgranted 2009-06-29cancelled 2015-10-09

Successor callsigns

Callsigns held now by people who previously held K4SBM.

No current licensee on record previously held this callsign.

← Back to K4SBM License history →