Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KZ4AA callsign genealogy
Currently held by LANDRY, WILLIAM E
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 KZ4AA's current licensee, walking backwards.
- KG4MZDcancelledBlue & Gray Contest ClubNCgranted 2001-04-17cancelled 2002-03-30
Successor callsigns
Callsigns held now by people who previously held KZ4AA.
- LANDRY, WILLIAM ETNgranted 1999-10-05cancelled 2008-05-09
All historical holders
Every license row we've seen with the callsign KZ4AA, oldest first.
- LANDRY, WILLIAM E TN1999-02-10 → cancelled 1999-10-05
- BLUE & GRAY CONTEST CLUB NC2022-02-15 active