Confidence: Medium · Source: FCC ULS · As of 2026-09-09
W4SDB callsign genealogy
Currently held by BROWN, SHEILA 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 W4SDB's current licensee, walking backwards.
- Brown, Sheila DGAgranted 2001-06-12cancelled 2003-01-07
Successor callsigns
Callsigns held now by people who previously held W4SDB.
No current licensee on record previously held this callsign.