Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KE5CPO callsign genealogy
Currently held by MASON, WILLIAM P
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 KE5CPO's current licensee, walking backwards.
- MASON, WILLIAM PNMgranted 2004-02-23cancelled 2004-09-22
Successor callsigns
Callsigns held now by people who previously held KE5CPO.
- MASON, WILLIAM PNMgranted 2026-02-11