Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1EMS callsign genealogy
Currently held by Arnold, Jeffrey
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 K1EMS's current licensee, walking backwards.
- Arnold, JeffreyMAgranted 1998-04-09cancelled 2006-01-07
Successor callsigns
Callsigns held now by people who previously held K1EMS.
- GATTO, BENEDICT JNJgranted 2023-03-15
All historical holders
Every license row we've seen with the callsign K1EMS, oldest first.
- GATTO, BENEDICT J NY1999-06-10 → cancelled 2003-04-26
- Arnold, Jeffrey MA2025-11-21 active