Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD7LK callsign genealogy
Currently held by Oswald, Dan D
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 AD7LK's current licensee, walking backwards.
- Oswald, Dan DORgranted 2006-03-09cancelled 2007-03-14
Successor callsigns
Callsigns held now by people who previously held AD7LK.
No current licensee on record previously held this callsign.