Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9HW callsign genealogy
Currently held by GRACZYK, DAVID A
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 W9HW's current licensee, walking backwards.
- GRACZYK, DAVID AILgranted 2003-09-30cancelled 2007-01-04
Successor callsigns
Callsigns held now by people who previously held W9HW.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9HW, oldest first.
- VOLTZ, WILLIAM E IN1994-11-21 → cancelled 2006-11-22
- GRACZYK, DAVID A IL2016-10-17 active