FIRMS code

H881 Ammex Tunnel Duty Free

Active Bonded warehouse

Facility details

FIRMS code: H881
Name: Ammex Tunnel Duty Free
Address: 100 E Jefferson Ave
Detroit, MI 48226-4376
Status: Active (A)
Facility type: Bonded warehouse (04)
CBP port: Detroit, MI (3801)
CBP region: 3
Last changed: 2026-10-23
Data as of: 2026-10-23

Pre-filing validation

Validate H881 before you file

Check H881 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":"H881","port":"3801","use":"warehouse_entry"}'

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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
HA50	Ammex Duty Free	Bonded warehouse	Deleted

Nearby facilities in the same port

Code	Name	Type	Distance
H727	D&C TUNNEL MAIN ENTRY	Inspection facility	38 m
H855	I&C ADMINISTRATION	CBP administrative site	920 m
H856	ENFORCEMENT & CARGO SECURITY	CBP administrative site	920 m
H739	Material Handling Services (aka:LB)	Bonded warehouse	2.4 km
I170	Material Handling Services, Ltd	Foreign trade zone	2.4 km

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.