Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W5CSP callsign genealogy
Currently held by PATTERSON, CHAUNCEY 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 W5CSP's current licensee, walking backwards.
- BAIRD III, DAVID CTXgranted 2022-02-03cancelled 2022-02-23
Successor callsigns
Callsigns held now by people who previously held W5CSP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W5CSP, oldest first.
- PATTERSON, CHAUNCEY S LA2008-02-20 → cancelled 2020-04-29
- BAIRD III, DAVID C TX2022-02-23 active