Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KW4ES callsign genealogy
Currently held by Perren, Timothy W
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 KW4ES's current licensee, walking backwards.
- Perren, Timothy WGAgranted 2013-12-11cancelled 2015-01-15
Successor callsigns
Callsigns held now by people who previously held KW4ES.
No current licensee on record previously held this callsign.