Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AB9MO callsign genealogy
Currently held by Rosengren, Eric B
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 AB9MO's current licensee, walking backwards.
- Rosengren, Eric BWAgranted 2025-08-12
Successor callsigns
Callsigns held now by people who previously held AB9MO.
No current licensee on record previously held this callsign.