Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AK4OO callsign genealogy
Currently held by WALLAUER, JOSEPH G
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 AK4OO's current licensee, walking backwards.
- WALLAUER, JOSEPH GFLgranted 2011-08-04cancelled 2011-11-23
Successor callsigns
Callsigns held now by people who previously held AK4OO.
No current licensee on record previously held this callsign.