Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC1IU callsign genealogy
Currently held by Bisbano Jr, John D
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 AC1IU's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held AC1IU.
- Bisbano Jr, John DMAgranted 2020-02-21