Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4ADX callsign genealogy
Currently held by CLIMER, TED H
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 W4ADX's current licensee, walking backwards.
- Butler, Jeffrey AALgranted 2023-06-28cancelled 2023-09-26
Successor callsigns
Callsigns held now by people who previously held W4ADX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4ADX, oldest first.
- CLIMER, TED H FL1998-05-22 → cancelled 2010-05-25
- Wetherill, Nevin G NC2011-09-07 → cancelled 2023-09-08
- Butler, Jeffrey A AL2023-09-26 active