Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KO4CRE callsign genealogy
Currently held by Keys, Tracy 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 KO4CRE's current licensee, walking backwards.
- Keys, Tracy LNCgranted 2011-08-26cancelled 2020-03-17
Successor callsigns
Callsigns held now by people who previously held KO4CRE.
No current licensee on record previously held this callsign.