Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KK4ESC callsign genealogy
Currently held by Blanzy, Matthew J
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 KK4ESC's current licensee, walking backwards.
- Blanzy, Matthew JFLgranted 2011-09-07cancelled 2011-10-14
Successor callsigns
Callsigns held now by people who previously held KK4ESC.
- Blanzy, Matthew JFLgranted 2021-08-25