Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3LDB callsign genealogy
Currently held by Butler III, Lee D
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 W3LDB's current licensee, walking backwards.
- Butler III, Lee DMDgranted 2014-01-13cancelled 2023-09-16
Successor callsigns
Callsigns held now by people who previously held W3LDB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W3LDB, oldest first.
- Guthrie, William E PA2005-03-30 → cancelled 2017-06-29
- Butler III, Lee D MD2023-09-16 active