Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W3CBS callsign genealogy
Currently held by Shannon, Dennis J
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 W3CBS's current licensee, walking backwards.
- Shannon, Dennis JVAgranted 2012-12-17cancelled 2019-08-17
Successor callsigns
Callsigns held now by people who previously held W3CBS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W3CBS, oldest first.
- GOTTLIEB, MORTON S MD2008-07-10 → cancelled 2019-07-30
- Shannon, Dennis J VA2019-08-17 active