Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB5OB callsign genealogy
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 AB5OB's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held AB5OB.
- Wilson Sr, Donald WMSgranted 2006-04-12cancelled 2018-07-03