Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI6MB callsign genealogy
Currently held by Rathbun, William H
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 AI6MB's current licensee, walking backwards.
- Rathbun, William HCAgranted 2015-02-04cancelled 2015-11-02
Successor callsigns
Callsigns held now by people who previously held AI6MB.
No current licensee on record previously held this callsign.