Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4SDS callsign genealogy
Currently held by Sharp, Steven 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 W4SDS's current licensee, walking backwards.
- SHARP, STEVEN DTNgranted 2013-09-09cancelled 2014-09-30
Successor callsigns
Callsigns held now by people who previously held W4SDS.
No current licensee on record previously held this callsign.