Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA0BA callsign genealogy
Currently held by MONINGER, WILLIAM R
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 AA0BA's current licensee, walking backwards.
- ANDERSEN, BO LMNgranted 2013-06-26cancelled 2013-10-17
Successor callsigns
Callsigns held now by people who previously held AA0BA.
- MONINGER, WILLIAM RNEgranted 2018-03-09
All historical holders
Every license row we've seen with the callsign AA0BA, oldest first.
- MONINGER, WILLIAM R NE2000-08-26 → cancelled 2008-06-06
- ANDERSEN, BO L MN2013-10-17 → cancelled 2026-03-07