Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NB9I callsign genealogy
Currently held by Barr III, William F
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 NB9I's current licensee, walking backwards.
- Barr III, William FINgranted 2009-03-18cancelled 2012-07-06
Successor callsigns
Callsigns held now by people who previously held NB9I.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign NB9I, oldest first.
- BERKEBILE, KENNETH R IN1994-11-17 → cancelled 2003-09-10
- Barr III, William F IN2022-06-14 active