FIRMSapiFIRMS code
H388 Southwest Airlines Co
Active Inspection facility
Facility details
- FIRMS code
- H388
- Name
- Southwest Airlines Co
- Address
- 311 Air Cargo WayMilwaukee, WI 53207-6040
- Status
- Active (A)
- Facility type
- Inspection facility (05)
- CBP port
- Milwaukee, WI (3701)
- CBP region
- 3
- Last changed
- 2026-10-23
- Data as of
- 2026-10-23
Pre-filing validation
Validate H388 before you file
Check H388 against the port and use on your filing before ACE does: list, status, port (ACE 164) and facility type.
curl https://api.firmsapi.com/v1/validate \
-H "x-api-key: $FIRMSAPI_KEY" -H "content-type: application/json" \
-d '{"code":"H388","port":"3701","use":"location_of_goods"}'Other codes at this address
Many facilities hold several FIRMS codes, for example one per facility type or operator.
| Code | Name | Type | Status |
|---|---|---|---|
| K306 | U.S. AIRWAYS | Inspection facility | Active |
Nearby facilities in the same port
| Code | Name | Type | Distance |
|---|---|---|---|
| H525 | Midwest Airlines Air Cargo | Inspection facility | 25 m |
| J723 | CONTINENTAL AIRLINES AIR FREIGHT | Inspection facility | 31 m |
| H0W3 | Custom Express | Container freight station | 114 m |
| H444 | Evergreen Aviation | Inspection facility | 114 m |
| J722 | AMERICAN AIRLINES AIR CARGO | Inspection facility | 114 m |
Source: U.S. Customs and Border Protection FIRMS code list, data as of 2026-10-23. FIRMSapi is not affiliated with CBP; confirm bond status and filing details in ACE.