Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1TLS callsign genealogy
Currently held by HELIN, MATTHEW R
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 K1TLS's current licensee, walking backwards.
- Helin, Matthew RMAgranted 2014-02-24cancelled 2014-03-21
Successor callsigns
Callsigns held now by people who previously held K1TLS.
No current licensee on record previously held this callsign.