FIRMS code

SAO4 Mainfreight Inc. DFW

Name: Mainfreight Inc. DFW
Address: 112 HARMON RD, FORT WORTH, TX, 76177, US

Active Container freight station

Facility details

FIRMS code: SAO4
Name: Mainfreight Inc. DFW
Address: 112 HARMON RD
FORT WORTH, TX 76177
Status: Active (A)
Facility type: Container freight station (01)
CBP port: Dallas/Ft. Worth, TX (5501)
CBP region: 6
Last changed: 2026-10-23
Data as of: 2026-10-23

Pre-filing validation

Validate SAO4 before you file

Check SAO4 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":"SAO4","port":"5501","use":"location_of_goods"}'

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Nearby facilities in the same port

Code	Name	Type	Distance
S1U1	Wabtec Transportation Systems, LLC 001	Foreign trade zone	327 m
U249	Logistics Plus Inc	Foreign trade zone	327 m
SDZ1	Yusen Logistics (Americas) Inc. - DFW	Container freight station	640 m
S648	Alliance Operating Services	Foreign trade zone	987 m
T130	Alliance Operating Services	Centralized examination station	987 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.