Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6MJM callsign genealogy
Currently held by SCHEMBRI, JOHN J
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 K6MJM's current licensee, walking backwards.
- McBride, Michael JCAgranted 2018-07-25cancelled 2018-08-14
Successor callsigns
Callsigns held now by people who previously held K6MJM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6MJM, oldest first.
- SCHEMBRI, JOHN J CA2006-01-12 → cancelled 2018-04-11
- McBride, Michael J CA2018-08-14 active