Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KO5K callsign genealogy
Currently held by Glasgow, Herschel M
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 KO5K's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KO5K.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KO5K, oldest first.
- Glasgow, Herschel M TX2004-11-17 → cancelled 2016-06-26
- SMITH, MICHAEL G TX2017-03-07 active