Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KZ4MX callsign genealogy
Currently held by BLALOCK, JOSHUA P
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 KZ4MX's current licensee, walking backwards.
- BLALOCK, JOSHUA PNCgranted 2024-10-18cancelled 2024-11-04
Successor callsigns
Callsigns held now by people who previously held KZ4MX.
No current licensee on record previously held this callsign.