Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N9MTR callsign genealogy
Currently held by SCHWARTZ III, JOSEPH D
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 N9MTR's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held N9MTR.
- Schwartz III, Joseph DTNgranted 2015-01-03