Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KV4SX callsign genealogy
Currently held by OEFELEIN, GERALD A
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 KV4SX's current licensee, walking backwards.
- OEFELEIN, GERALD AVAgranted 2003-10-07cancelled 2013-11-21
Successor callsigns
Callsigns held now by people who previously held KV4SX.
No current licensee on record previously held this callsign.