FIRMS code

C103 U S POSTAL SERVICE

Name: U S POSTAL SERVICE
Address: 900 FAYETTE STREET, BALTIMORE, MD, 21202, US

Active Inspection facility

Facility details

FIRMS code: C103
Name: U S POSTAL SERVICE
Address: 900 FAYETTE STREET
BALTIMORE, MD 21202
Status: Active (A)
Facility type: Inspection facility (05)
CBP port: Baltimore, MD (1303)
CBP region: 1
Last changed: 2026-10-23
Data as of: 2026-10-23

Pre-filing validation

Validate C103 before you file

Check C103 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":"C103","port":"1303","use":"location_of_goods"}'

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Nearby facilities in the same port

Code	Name	Type	Distance
C179	DOMINO SUGAR CORPORATION	Pier or terminal	43 m
A347	Port of Baltimore	CBP administrative site	563 m
C076	U.S. CUSTOMS SERVICE PUBLIC STORE 1	CBP administrative site	563 m
D185	ANNAPOLIS ANCHORAGE/CUSTOMS OFFICE	Pier or terminal	563 m
C588	UNIVERSAL MARITIME SERVICE	Pier or terminal	957 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.