Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KZ4SDW callsign genealogy
Currently held by WALL JR, SHARPE 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 KZ4SDW's current licensee, walking backwards.
- Wall Jr, Sharpe DGAgranted 2013-04-17cancelled 2013-05-21
Successor callsigns
Callsigns held now by people who previously held KZ4SDW.
- WALL JR, SHARPE DGAgranted 2026-05-08