Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD7XU callsign genealogy
Currently held by Espenshade, David M
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 AD7XU's current licensee, walking backwards.
- Espenshade, David MWAgranted 2002-09-19cancelled 2008-12-16
Successor callsigns
Callsigns held now by people who previously held AD7XU.
No current licensee on record previously held this callsign.