Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI4BI callsign genealogy
Currently held by Pace II, Donald J
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 AI4BI's current licensee, walking backwards.
- Pace II, Donald JALgranted 2003-04-07cancelled 2003-09-10
Successor callsigns
Callsigns held now by people who previously held AI4BI.
No current licensee on record previously held this callsign.