Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4REO callsign genealogy
Currently held by COLON, WILLIAM
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 KP4REO's current licensee, walking backwards.
- COLON, WILLIAMPRgranted 2005-09-14cancelled 2012-09-28
Successor callsigns
Callsigns held now by people who previously held KP4REO.
No current licensee on record previously held this callsign.