Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1ILZ callsign genealogy
Currently held by SMITH, LAWRENCE 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 K1ILZ's current licensee, walking backwards.
- Donchev, Mladen DTXgranted 2020-07-03cancelled 2024-03-26
Successor callsigns
Callsigns held now by people who previously held K1ILZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K1ILZ, oldest first.
- SMITH, LAWRENCE F MA2006-04-27 → cancelled 2018-06-19
- Donchev, Mladen D ME2024-03-26 active