Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N1MJS callsign genealogy
Currently held by SAPIENZA, MATTHEW 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 N1MJS's current licensee, walking backwards.
- SAPIENZA, MATTHEW JNHgranted 2017-03-20cancelled 2019-04-09
Successor callsigns
Callsigns held now by people who previously held N1MJS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1MJS, oldest first.
- CHANDLER, JOHN C MA2002-02-20 → cancelled 2014-05-20
- SAPIENZA, MATTHEW J NH2019-04-09 active