Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN4J callsign genealogy
Currently held by SIMONETTI, BLAISE C
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 KN4J's current licensee, walking backwards.
- SIMONETTI, BLAISE CSCgranted 2013-09-23cancelled 2014-10-28
Successor callsigns
Callsigns held now by people who previously held KN4J.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KN4J, oldest first.
- CROCKER, GEORGE W AL2003-11-25 → cancelled 2012-10-08
- SIMONETTI, BLAISE C SC2024-08-17 active