Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB0LN callsign genealogy
Currently held by Koski, Arthur 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 AB0LN's current licensee, walking backwards.
- KOSKI, ARTHUR JMNgranted 1998-05-01cancelled 2000-05-30
Successor callsigns
Callsigns held now by people who previously held AB0LN.
No current licensee on record previously held this callsign.