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FIRMS code

I546 CHINA SOUTHERN AIRLINES

Active Importer's premises

Facility details

FIRMS code
I546
Name
CHINA SOUTHERN AIRLINES
Address
836 PATTON DR EXPORT, TOWER A (EXPORTS ONLY)
CHICAGO, IL 60666-5055
Status
Active (A)
Facility type
Importer's premises (06)
CBP port
Chicago, IL (3901)
CBP region
3
Last changed
2026-10-23
Data as of
2026-10-23

Pre-filing validation

Validate I546 before you file

Check I546 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":"I546","port":"3901","use":"location_of_goods"}'
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Nearby facilities in the same port

CodeNameTypeDistance
H0B6 AGI CARGO LLC Inspection facility 0 m
H0G6 Airzeta Co. LTD Inspection facility 0 m
H0H6 DHL Express Container freight station 0 m
H0K1 SF Airlines Importer's premises 0 m
H588 AirBridge Cargo Airlines Importer's premises 0 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.