Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4GAO callsign genealogy
Currently held by OLSON, GREGG A
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 W4GAO's current licensee, walking backwards.
- OLSON, GREGG ANJgranted 1996-01-26cancelled 2006-02-04
- N0CFAno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held W4GAO.
No current licensee on record previously held this callsign.