Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4CSD callsign genealogy
Currently held by Dempsey, Christopher S
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 W4CSD's current licensee, walking backwards.
- Dempsey, Chris SGAgranted 2016-09-19cancelled 2025-03-29
Successor callsigns
Callsigns held now by people who previously held W4CSD.
No current licensee on record previously held this callsign.