Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N6MDZ callsign genealogy
Currently held by ESTACIO, MICHAEL 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 N6MDZ's current licensee, walking backwards.
- Diaz, EmanuelCAgranted 2014-11-21cancelled 2018-10-12
Successor callsigns
Callsigns held now by people who previously held N6MDZ.
- ESTACIO, MICHAEL MCAgranted 2006-07-11cancelled 2018-07-12
All historical holders
Every license row we've seen with the callsign N6MDZ, oldest first.
- ESTACIO, MICHAEL M CA2006-07-11 → cancelled 2009-03-12
- Diaz, Emanuel CA2018-10-12 active