Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KT8W callsign genealogy
Currently held by KLUMPP, TERRY 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 KT8W's current licensee, walking backwards.
- Klumpp, Terry LMIgranted 2006-06-23cancelled 2008-03-18
Successor callsigns
Callsigns held now by people who previously held KT8W.
- COULSON, THOMAS AWVgranted 2005-05-13cancelled 2006-07-11
All historical holders
Every license row we've seen with the callsign KT8W, oldest first.
- COULSON, THOMAS A KY1999-06-02 → cancelled 2005-05-13
- KLUMPP, TERRY L MI2018-01-23 active