Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB0KU callsign genealogy
Currently held by FRANZESKOS, COURTNEY 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 AB0KU's current licensee, walking backwards.
- FRANZESKOS, COURTNEY JMOgranted 1998-04-17cancelled 2000-05-16
Successor callsigns
Callsigns held now by people who previously held AB0KU.
No current licensee on record previously held this callsign.