Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4IU callsign genealogy
Currently held by Kauffman JR, James V
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 W4IU's current licensee, walking backwards.
- KAUFFMAN JR, JAMES VGAgranted 2013-10-30cancelled 2018-08-03
Successor callsigns
Callsigns held now by people who previously held W4IU.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4IU, oldest first.
- SKELTON JR, THOMAS E SC2006-08-16 → cancelled 2016-07-14
- Kauffman JR, James V GA2018-08-03 active