Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4JBA callsign genealogy
Currently held by ALLEN, JAMES B
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 W4JBA's current licensee, walking backwards.
- ALLEN, JAMES BALgranted 2008-11-04cancelled 2017-04-14
Successor callsigns
Callsigns held now by people who previously held W4JBA.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4JBA, oldest first.
- Warner, Otho IL2004-12-10 → cancelled 2017-03-08
- ALLEN, JAMES B AL2017-04-14 active