Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W8SDD callsign genealogy
Currently held by DI ROCCO JR, SAMUEL 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 W8SDD's current licensee, walking backwards.
- DI ROCCO JR, SAMUEL DOHgranted 2011-03-08cancelled 2011-08-05
Successor callsigns
Callsigns held now by people who previously held W8SDD.
No current licensee on record previously held this callsign.