Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AK4KO callsign genealogy
Currently held by WARREN, KEITH 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 AK4KO's current licensee, walking backwards.
- WARREN, KEITH OALgranted 1998-09-21cancelled 2000-08-25
Successor callsigns
Callsigns held now by people who previously held AK4KO.
No current licensee on record previously held this callsign.