Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NS0R callsign genealogy
Currently held by SINDLAR, ROBERT 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 NS0R's current licensee, walking backwards.
- BAILEY II, MORGAN CKSgranted 2012-11-24cancelled 2013-11-09
Successor callsigns
Callsigns held now by people who previously held NS0R.
- SINDLAR, ROBERT SNEgranted 2021-07-28
All historical holders
Every license row we've seen with the callsign NS0R, oldest first.
- TJADEN, ELDON I IA1996-02-22 → cancelled 2008-02-23
- SINDLAR, ROBERT S NE2008-09-12 → cancelled 2011-10-04
- BAILEY II, MORGAN C KS2023-08-29 active