FIRMSapiCBP port 3984
FIRMS codes in Port 3984, IL
1 active code, 1 deleted. CBP region 3. Data as of 2026-10-23.
1 CBP admin
Active codes
| Code | Name | Type | City |
|---|---|---|---|
| J033 | CUSTOMS - DUPAGE COUNTY AIRPORT | CBP administrative site | WEST CHICAGO, IL |
Deleted codes
Deleted in CBP's list; kept so old paperwork still resolves. Don't use them on new filings.
| Code | Name | Type | City |
|---|---|---|---|
| H664 | U.S. CUSTOMS SVC -DUPAGE AIRPORT | CBP administrative site | WEST CHICAGO, IL |
Query this port from code
List every code in port 3984, or search and validate codes against it, with the FIRMSapi API.