Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K2OSW callsign genealogy
Currently held by Oswald, Dirk
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 K2OSW's current licensee, walking backwards.
- Oswald, DirkNJgranted 2016-10-11cancelled 2016-11-01
Successor callsigns
Callsigns held now by people who previously held K2OSW.
No current licensee on record previously held this callsign.