Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4SRE callsign genealogy
Currently held by SCHNIDER, DAVID
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 W4SRE's current licensee, walking backwards.
- SCHNIDER, DAVIDGAgranted 2016-02-02cancelled 2017-12-19
Successor callsigns
Callsigns held now by people who previously held W4SRE.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4SRE, oldest first.
- CLARKE, CHARLES E FL2001-03-24 → cancelled 2013-03-26
- SCHNIDER, DAVID GA2017-12-19 active