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

W9TLS callsign genealogy

Currently held by SHOEMAKER, TERRY 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 W9TLS's current licensee, walking backwards.

  1. KC9EVNcancelled· G
    Hermsdorfer, Mark JINgranted 2013-08-09cancelled 2019-11-05

Successor callsigns

Callsigns held now by people who previously held W9TLS.

  1. KC8MNZactive· G
    SHOEMAKER, TERRY LKYgranted 2017-02-14

All historical holders

Every license row we've seen with the callsign W9TLS, oldest first.

  • SHOEMAKER, TERRY L KY
    2016-05-03 → cancelled 2017-02-14
  • Hermsdorfer, Mark J IN
    2019-11-05 active
← Back to W9TLS License history →