Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N1JRS callsign genealogy
Currently held by Sullivan, Jack
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 N1JRS's current licensee, walking backwards.
- Sullivan, JackMAgranted 2025-01-23cancelled 2025-04-18
Successor callsigns
Callsigns held now by people who previously held N1JRS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1JRS, oldest first.
- BERGERON, GEORGE J MA2011-07-07 → cancelled 2023-07-18
- Sullivan, Jack MA2025-04-18 active