Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AF0BO callsign genealogy
Currently held by Langer, Kathryn
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 AF0BO's current licensee, walking backwards.
- Langer, KathrynMNgranted 2024-10-17cancelled 2024-12-10
Successor callsigns
Callsigns held now by people who previously held AF0BO.
- Langer, KathrynMNgranted 2024-12-28