Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC7DLZ callsign genealogy
Currently held by BURDEN, WILLIAM H
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 KC7DLZ's current licensee, walking backwards.
- Walker, June MAZgranted 2008-08-25cancelled 2008-09-13
Successor callsigns
Callsigns held now by people who previously held KC7DLZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC7DLZ, oldest first.
- BURDEN, WILLIAM H AZ1994-07-09 → cancelled 2006-07-11
- Walker, June M AZ2018-08-30 active