Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N9OZR callsign genealogy
Currently held by Sladek, Dennis L
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 N9OZR's current licensee, walking backwards.
- Sladek, Dennis LILgranted 2013-05-20cancelled 2013-06-07
Successor callsigns
Callsigns held now by people who previously held N9OZR.
- SLADEK, DENNIS LILgranted 1997-06-09cancelled 2009-06-10