uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-12

N1LSR callsign genealogy

Currently held by SULEWSKI III, LOUIS R

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 N1LSR's current licensee, walking backwards.

  1. KA1YUR
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held N1LSR.

No current licensee on record previously held this callsign.

← Back to N1LSR License history →