Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AI4BC callsign genealogy
Currently held by CROWDER, BRIAN K
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 AI4BC's current licensee, walking backwards.
- CROWDER, BRIAN KNCgranted 2024-04-03cancelled 2025-12-09
Successor callsigns
Callsigns held now by people who previously held AI4BC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AI4BC, oldest first.
- Irvin, David M NC2013-01-04 → cancelled 2025-03-29
- CROWDER, BRIAN K NC2025-12-09 active