Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5TWL callsign genealogy
Currently held by HACKETT JR, WILLIAM E
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 K5TWL's current licensee, walking backwards.
- Loesch, Thomas WTXgranted 2019-03-13cancelled 2019-04-02
Successor callsigns
Callsigns held now by people who previously held K5TWL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5TWL, oldest first.
- HACKETT JR, WILLIAM E OK1995-02-14 → cancelled 2007-02-15
- Loesch, Thomas W TX2019-04-02 active