Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N6MTZ callsign genealogy
Currently held by James, Philip A
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 N6MTZ's current licensee, walking backwards.
- James, Philip ACAgranted 2009-10-22cancelled 2010-11-28
Successor callsigns
Callsigns held now by people who previously held N6MTZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N6MTZ, oldest first.
- MORTENSEN, DANIEL R CA1997-03-20 → cancelled 2009-03-21
- James, Philip A OR2020-12-09 active