FIRMSapiCBP port 3991
FIRMS codes in Port 3991, IL
1 active code. CBP region 3. Data as of 2026-10-23.
1 Inspection
Active codes
| Code | Name | Type | City |
|---|---|---|---|
| K816 | DHL WORLDWIDE EXPRESS | Inspection facility | Chicago, IL |
Query this port from code
List every code in port 3991, or search and validate codes against it, with the FIRMSapi API.