Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KV4JY callsign genealogy
Currently held by Ware, James 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 KV4JY's current licensee, walking backwards.
- Ware, James LORgranted 2016-04-21cancelled 2016-05-10
Successor callsigns
Callsigns held now by people who previously held KV4JY.
- JAWORSKI, PETER SVAgranted 2007-06-08cancelled 2014-12-23
All historical holders
Every license row we've seen with the callsign KV4JY, oldest first.
- JAWORSKI, PETER S VA2007-06-08 → cancelled 2013-01-25
- Ware, James L OR2026-06-30 active