Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0CBS callsign genealogy
Currently held by CALDER JR, WILLIAM G
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 W0CBS's current licensee, walking backwards.
- CALDER JR, WILLIAM Gcancelled 1998-01-07
Successor callsigns
Callsigns held now by people who previously held W0CBS.
No current licensee on record previously held this callsign.