FIRMS code

M800 US CUSTOMS HOUSE

Active CBP administrative site

Facility details

FIRMS code: M800
Name: US CUSTOMS HOUSE
Address: KEY WEST, FL 33041-0071
Status: Active (A)
Facility type: CBP administrative site (08)
CBP port: Key West, FL (5202)
CBP region: 4
Last changed: 2026-10-23
Data as of: 2026-10-23

Pre-filing validation

Validate M800 before you file

Check M800 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":"M800","port":"5202","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.

Code	Name	Type	Status
M808	CUSTOMS PORT OFFICE	CBP administrative site	Active
M809	CARIBE NAUTICAL SERVICES INC	Pier or terminal	Active

Nearby facilities in the same port

Code	Name	Type	Distance
M121	AMBASSADOR SERVICES INC	Pier or terminal	225 m
O481	OLD ISLAND DUTY FREE MARKET, INC.	Bonded warehouse	466 m
M813	MALLORY DOCKS	Pier or terminal	489 m
M816	D-2N TRUMBO ANNEX	DP site	525 m
M831	JERE CAUANAGH'S INC	Importer's premises	544 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.