Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7ES callsign genealogy
Currently held by GRANBERG, HELGE O
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 K7ES's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K7ES.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7ES, oldest first.
- GRANBERG, HELGE O AZ1996-01-11 → cancelled 1996-01-16
- ABELL, DAVID C OR2023-09-12 active