Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AA1WB callsign genealogy
Currently held by Bohlin, Walter 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 AA1WB's current licensee, walking backwards.
- Bohlin, Walter RGAgranted 2013-07-01cancelled 2013-07-19
Successor callsigns
Callsigns held now by people who previously held AA1WB.
- Kreho, LudwigCTgranted 2010-06-23cancelled 2022-07-01
All historical holders
Every license row we've seen with the callsign AA1WB, oldest first.
- Kreho, Ludwig CT1998-05-13 → cancelled 2000-06-30
- Bohlin, Walter R TN2023-07-08 active