Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB8OS callsign genealogy
Currently held by Fourman, Donald N
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 AB8OS's current licensee, walking backwards.
- Fourman, Donald NOHgranted 2001-04-26cancelled 2002-06-06
Successor callsigns
Callsigns held now by people who previously held AB8OS.
No current licensee on record previously held this callsign.