Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4CSN callsign genealogy
Currently held by DIAZ, PHILIP M
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 K4CSN's current licensee, walking backwards.
- Diaz, Philip MNCgranted 2000-06-13cancelled 2003-04-29
Successor callsigns
Callsigns held now by people who previously held K4CSN.
No current licensee on record previously held this callsign.