FIRMS code

H840 Mason Dixon Intermodal

Deleted Bonded warehouse

This code is deleted in CBP's FIRMS list. Don't use it on new filings. FIRMSapi keeps deleted codes so lookups of old paperwork still resolve; check the port listing for a replacement.

Facility details

FIRMS code: H840
Name: Mason Dixon Intermodal
Address: 5000 Stilwell St
Kansas City, MO 64120-1136
Status: Deleted (D)
Facility type: Bonded warehouse (04)
CBP port: Kansas City, MO (4501)
CBP region: 3
Last changed: 2026-10-23
Data as of: 2026-10-23

Pre-filing validation

Validate H840 before you file

Validation fails H840: it's deleted, the reject ACE returns as 159. Search the port for an active replacement.

curl https://api.firmsapi.com/v1/validate \
  -H "x-api-key: $FIRMSAPI_KEY" -H "content-type: application/json" \
  -d '{"code":"H840","port":"4501","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
J219	MIDDLEWEST FREIGHTWAYS	Inspection facility	Deleted

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.