Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9OTA callsign genealogy
Currently held by KLAUS, CASEY W
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 N9OTA's current licensee, walking backwards.
- KLAUS, CASEY WILgranted 2017-05-20cancelled 2026-01-16
Successor callsigns
Callsigns held now by people who previously held N9OTA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9OTA, oldest first.
- CLEMONS, ELIZABETH L IN2002-01-03 → cancelled 2014-04-01
- KLAUS, CASEY W IL2026-01-16 active