Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5ZI callsign genealogy
Currently held by GRACE, CHARLES H
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 W5ZI's current licensee, walking backwards.
- GRACE, CHARLES HKYgranted 2000-09-22cancelled 2000-11-14
Successor callsigns
Callsigns held now by people who previously held W5ZI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W5ZI, oldest first.
- WHITAKER, FRANK R TX1988-10-25 → cancelled 2000-10-26
- GRACE, CHARLES H TN2020-09-02 active