Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N1LFR callsign genealogy
Currently held by MONTGOMERY JR, JOHN A
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 N1LFR's current licensee, walking backwards.
- Jastrem, Eugene SNHgranted 2003-09-17cancelled 2010-02-17
Successor callsigns
Callsigns held now by people who previously held N1LFR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N1LFR, oldest first.
- MONTGOMERY JR, JOHN A CT1992-01-28 → cancelled 2004-01-29
- Jastrem III, Eugene S NH2020-02-13 active