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FIRMS code

O446 LANDMARK

Active Inspection facility

Facility details

FIRMS code
O446
Name
LANDMARK
Address
DULLES INTERNATIONAL AIRPORT
WASHINGTON, DC 20041
Status
Active (A)
Facility type
Inspection facility (05)
CBP port
Washington, DC (5401)
CBP region
4
Last changed
2026-10-23
Data as of
2026-10-23

Pre-filing validation

Validate O446 before you file

Check O446 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":"O446","port":"5401","use":"location_of_goods"}'
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Other codes at this address

Many facilities hold several FIRMS codes, for example one per facility type or operator.

CodeNameTypeStatus
N017 INERNATIONAL ARRIVALS AREA Inspection facility Active

Nearby facilities in the same port

CodeNameTypeDistance
N019 US CUSTOMS CARGO OFFICE CBP administrative site 0 m
N022 UAL/AIR CANADA/BRIT. MIDLANDS CARGO Inspection facility 0 m
N029 SIGNATURE FLIGHT SUPPORT Inspection facility 0 m
N030 GERMAN MILITARY CARGO BUILDING Importer's premises 0 m
O199 AIRSCHOTT Inspection facility 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.