Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N1LJR callsign genealogy
Currently held by Altman, Christopher S
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 N1LJR's current licensee, walking backwards.
- Altman, Christopher SNCgranted 2018-04-03cancelled 2018-04-21
Successor callsigns
Callsigns held now by people who previously held N1LJR.
- Altfeter, Bruce EFLgranted 2023-10-11
All historical holders
Every license row we've seen with the callsign N1LJR, oldest first.
- ALTFETER, BRUCE E MA2003-10-08 → cancelled 2003-11-04
- Altman, Christopher S NC2018-04-21 active