Confidence: Medium · Source: FCC ULS · As of 2026-09-11
KB4LB callsign genealogy
Currently held by WIMBERLY, WILLIAM R
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 KB4LB's current licensee, walking backwards.
- BAEZ, LUIS AFLgranted 1998-03-11cancelled 2004-04-20
Successor callsigns
Callsigns held now by people who previously held KB4LB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB4LB, oldest first.
- WIMBERLY, WILLIAM R FL1992-01-07 → cancelled 2004-01-08
- BAEZ, LUIS A FL2024-05-21 active