Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0LSX callsign genealogy
Currently held by Kramper 262, James P
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 N0LSX's current licensee, walking backwards.
- KRAMPER, JAMES PMOgranted 2004-07-07cancelled 2009-03-13
Successor callsigns
Callsigns held now by people who previously held N0LSX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0LSX, oldest first.
- SCHWARTZ, ROBERT L MO1993-04-06 → cancelled 2005-04-07
- Kramper 262, James P MO2019-05-23 active