Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K8EFX callsign genealogy
Currently held by HASFORD, GEORGE J
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 K8EFX's current licensee, walking backwards.
- COLE, JOHN HTNgranted 1999-06-29cancelled 2001-02-24
Successor callsigns
Callsigns held now by people who previously held K8EFX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K8EFX, oldest first.
- HASFORD, GEORGE J MI1998-03-03 → cancelled 2000-12-30
- COLE, JOHN H MI2021-01-15 active