Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W3CXC callsign genealogy
Currently held by RILEY, DONALD L
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 W3CXC's current licensee, walking backwards.
- RILEY, DONALD LMDgranted 2004-09-18cancelled 2004-11-02
Successor callsigns
Callsigns held now by people who previously held W3CXC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W3CXC, oldest first.
- RILEY, JAMES C MD1996-02-07 → cancelled 2002-12-09
- RILEY, DONALD L MD2024-10-17 active