Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0TLS callsign genealogy
Currently held by Sawyer, Tommy 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 N0TLS's current licensee, walking backwards.
- VAN DYKE, TRAVIS JNDgranted 2017-03-07cancelled 2017-04-04
Successor callsigns
Callsigns held now by people who previously held N0TLS.
- Sawyer, Tommy LIAgranted 2018-12-28
All historical holders
Every license row we've seen with the callsign N0TLS, oldest first.
- ARMSTRONG, MAX D KS1992-07-21 → cancelled 2004-07-22
- Sawyer, Tommy L IA2006-09-26 → cancelled 2009-03-10
- VAN DYKE, TRAVIS J IA2017-04-04 active