Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1CSP callsign genealogy
Currently held by ST PETER, CHRISTOPHER E
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 W1CSP's current licensee, walking backwards.
- ST PETER, CHRISTOPHER ECAgranted 2009-10-22cancelled 2009-11-10
Successor callsigns
Callsigns held now by people who previously held W1CSP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W1CSP, oldest first.
- NORMAN, MARVIN MA1993-12-07 → cancelled 2005-12-08
- ST PETER, CHRISTOPHER E CA2019-11-27 active