| Country | United States (US) |
| UN/LOCODE | OBK |
| Name | Northbrook |
| Name Without Diacritics | Northbrook |
| Region | IL |
| Function Code | --34---- |
| Function | Road, Airport |
| Status Code | AI (Code Adopted By International Organization) |
| Date | 1801 |
| Location (UN Format) | 4207N 08749W |