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

W9TJ callsign genealogy

Currently held by JOHNS, THOMAS E

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 W9TJ's current licensee, walking backwards.

  1. KB9IScancelled· E
    Sawicki, Ireneusz MILgranted 2019-03-23cancelled 2021-03-26
  2. KD9MCMcancelled· E
    Sawicki, Ireneusz MILgranted 2018-12-07cancelled 2019-03-23

Successor callsigns

Callsigns held now by people who previously held W9TJ.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign W9TJ, oldest first.

  • JOHNS, THOMAS E IL
    2016-03-03 → cancelled 2019-03-05
  • Sawicki, Ireneusz M IL
    2021-03-26 active
← Back to W9TJ License history →