Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AB6QO callsign genealogy
Currently held by GRAFF, JOHN 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 AB6QO's current licensee, walking backwards.
- KB6UQCno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held AB6QO.
- GRAFF, JOHN JAZgranted 2023-03-08