Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4MTL callsign genealogy
Currently held by LAUER, TOMMIE F
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 K4MTL's current licensee, walking backwards.
- Lauer, Tommie FNCgranted 2015-07-08cancelled 2016-01-01
Successor callsigns
Callsigns held now by people who previously held K4MTL.
- LAUER, TOMMIE FNCgranted 2020-04-11