Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KU4VB callsign genealogy
Currently held by MONROE, JAMES 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 KU4VB's current licensee, walking backwards.
- Monroe, James AILgranted 2017-11-02cancelled 2017-11-23
Successor callsigns
Callsigns held now by people who previously held KU4VB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KU4VB, oldest first.
- MONROE, JAMES A AL1998-09-29 → cancelled 2010-07-30
- Monroe, James A IL2017-11-23 active