FIRMS code

K110 MIDWEST EXPRESS AIRLINES

Deleted Inspection facility

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: K110
Name: MIDWEST EXPRESS AIRLINES
Address: AIR CARGO WAY
MILWAUKEE, WI 53207
Status: Deleted (D)
Facility type: Inspection facility (05)
CBP port: Milwaukee, WI (3701)
CBP region: 3
Last changed: 2026-10-23
Data as of: 2026-10-23

Pre-filing validation

Validate K110 before you file

Validation fails K110: 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":"K110","port":"3701","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
H612	UNITED AIR CARGO	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.