Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5CXO callsign genealogy
Currently held by MURPH, JAMES M
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 K5CXO's current licensee, walking backwards.
- MURPH, JAMES MTXgranted 2002-11-19cancelled 2003-04-25
Successor callsigns
Callsigns held now by people who previously held K5CXO.
- MURPH, JAMES MTXgranted 2002-11-19cancelled 2003-04-25
All historical holders
Every license row we've seen with the callsign K5CXO, oldest first.
- MURPH, JAMES M TX2002-11-19 → cancelled 2003-02-25
- MURPH, JAMES M TX2023-02-11 active