Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0SDC callsign genealogy
Currently held by CRAWFORD, 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 W0SDC's current licensee, walking backwards.
- CRAWFORD, STEVEN DMOgranted 2019-10-15cancelled 2019-11-16
Successor callsigns
Callsigns held now by people who previously held W0SDC.
No current licensee on record previously held this callsign.