Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KV4YK callsign genealogy
Currently held by O'Bryan, Joseph 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 KV4YK's current licensee, walking backwards.
- O'Bryan, Joseph LKYgranted 2014-04-22cancelled 2014-05-22
Successor callsigns
Callsigns held now by people who previously held KV4YK.
No current licensee on record previously held this callsign.