Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9MLW callsign genealogy
Currently held by WALLER, MICHAEL 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 K9MLW's current licensee, walking backwards.
- Wollesen, Michael LILgranted 2015-04-22cancelled 2015-05-27
Successor callsigns
Callsigns held now by people who previously held K9MLW.
- WALLER, MICHAEL LNCgranted 2021-07-22
All historical holders
Every license row we've seen with the callsign K9MLW, oldest first.
- WALLER, MICHAEL L FL2010-10-14 → cancelled 2011-09-09
- Wollesen, Michael L IL2025-05-09 active