Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5USW callsign genealogy
Currently held by Sprague, Timothy 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 W5USW's current licensee, walking backwards.
- Sprague, Timothy LOKgranted 2012-09-11cancelled 2019-05-25
Successor callsigns
Callsigns held now by people who previously held W5USW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W5USW, oldest first.
- MC CULLOUGH, KENNETH L OK2005-01-10 → cancelled 2017-04-07
- Sprague, Timothy L OK2019-05-25 active