Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9GLK callsign genealogy
Currently held by SHERWOOD, WARREN G
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 K9GLK's current licensee, walking backwards.
- Murrell, MarrioWIgranted 2024-05-30cancelled 2024-06-18
Successor callsigns
Callsigns held now by people who previously held K9GLK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9GLK, oldest first.
- SHERWOOD, WARREN G IN2005-08-31 → cancelled 2017-11-29
- Murrell, Marrio L WI2024-06-18 active