Confidence: Medium · Source: FCC ULS · As of 2026-09-15
K8IYO callsign genealogy
Currently held by WILLEFORD, CATHY 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 K8IYO's current licensee, walking backwards.
- ADAMS, CATHY LOHgranted 2010-03-08cancelled 2010-03-26
Successor callsigns
Callsigns held now by people who previously held K8IYO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K8IYO, oldest first.
- WILLEFORD, GEORGE L OH1997-11-11 → cancelled 2009-11-13
- WILLEFORD, CATHY L OH2019-12-28 active