Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W6MTR callsign genealogy
Currently held by LOSCHIAVO, JOHN 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 W6MTR's current licensee, walking backwards.
- Loschiavo, John DCAgranted 2005-12-06cancelled 2010-11-16
Successor callsigns
Callsigns held now by people who previously held W6MTR.
- VICENTI, ALAN JCAgranted 2018-07-24
All historical holders
Every license row we've seen with the callsign W6MTR, oldest first.
- SOUTHERN CALIFORNIA SIX METER CLUB AUXILIARY CA1996-11-04 → cancelled 2000-11-03
- VICENTI, ALAN J CA2003-02-19 → cancelled 2008-10-07
- LOSCHIAVO, JOHN D CA2020-09-15 active