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

WB4TRS callsign genealogy

Currently held by COLEMAN, TIMOTHY 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 WB4TRS's current licensee, walking backwards.

  1. KY4TCactive· E
    Brooks, Brandon STNgranted 2017-07-04
  2. K4AMRactive· G
    MONKOVICH, ROBERT SNCgranted 2022-09-03
  3. KA2WPDcancelled· G
    MONKOVICH, ROBERT SNCgranted 2021-09-08cancelled 2022-09-03

Successor callsigns

Callsigns held now by people who previously held WB4TRS.

  1. KY4TCcancelled· E
    COLEMAN, TIMOTHY LKYgranted 2013-01-26cancelled 2013-09-04

All historical holders

Every license row we've seen with the callsign WB4TRS, oldest first.

  • COLEMAN, TIMOTHY L KY
    2005-12-21 → cancelled 2013-01-26
  • COLEMAN, TIMOTHY L KY
    2013-09-04 → cancelled 2025-09-05
← Back to WB4TRS License history →