Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9JI callsign genealogy
Currently held by HACKER, ARTHUR W
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 W9JI's current licensee, walking backwards.
- VOLKMANN, PATRICK JWIgranted 2004-04-27cancelled 2006-07-06
Successor callsigns
Callsigns held now by people who previously held W9JI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W9JI, oldest first.
- HACKER, ARTHUR W IL1994-08-06 → cancelled 2003-09-07
- VOLKMANN, PATRICK J WI2026-04-17 active