Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NO5DO callsign genealogy
Currently held by Kowalewski Jr, Donald C
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 NO5DO's current licensee, walking backwards.
- KOWALEWSKI JR, DONALD CFLgranted 2015-08-24cancelled 2016-05-27
Successor callsigns
Callsigns held now by people who previously held NO5DO.
No current licensee on record previously held this callsign.