Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KV4YY callsign genealogy
Currently held by Walker, Jon 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 KV4YY's current licensee, walking backwards.
- Walker, Jon WTNgranted 2010-09-15cancelled 2014-06-18
Successor callsigns
Callsigns held now by people who previously held KV4YY.
No current licensee on record previously held this callsign.