Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4SDB callsign genealogy
Currently held by Becton, Douglas
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 K4SDB's current licensee, walking backwards.
- Becton, DouglasGAgranted 2004-03-19cancelled 2004-05-21
Successor callsigns
Callsigns held now by people who previously held K4SDB.
No current licensee on record previously held this callsign.