FIRMS code

B310 U.S. CUSTOMS-MANIFEST UNIT SEAPORT

Active CBP administrative site

Facility details

FIRMS code: B310
Name: U.S. CUSTOMS-MANIFEST UNIT SEAPORT
Address: CUSTOMHOUSE 2ND & CHESTNUT ST
PHILADELPHIA, PA 19106
Status: Active (A)
Facility type: CBP administrative site (08)
CBP port: Philadelphia, PA (1101)
CBP region: 1
Last changed: 2026-10-23
Data as of: 2026-10-23

Pre-filing validation

Validate B310 before you file

Check B310 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":"B310","port":"1101","use":"location_of_goods"}'

Get a free key Validation guide

Other codes at this address

Many facilities hold several FIRMS codes, for example one per facility type or operator.

Code	Name	Type	Status
B263	U.S. CUSTOMS-SPECIAL PROJECTS DESK	CBP administrative site	Active
B265	CHIEF INSPECTOR OFFICE SEAPORT	CBP administrative site	Active
B308	U.S. CUSTOMS- DAU SEAPORT AT CH	CBP administrative site	Active
B329	U.S. CUSTOMS-WHSE INSPECTION TEAM	CBP administrative site	Active

Nearby facilities in the same port

Code	Name	Type
B266	U.S. CUSTOMS-CLERICAL SUPPORT AT CH	CBP administrative site
B284	U.S. CUSTOMS- CH STATION SUPV	CBP administrative site
B887	U.S. CUSTOMS - ENF GROUP DOWNTOWN	CBP administrative site
B888	U.S. CUSTOMS - ENF GROUP CHIEF	CBP administrative site
B990	U.S. CUSTOMS - FIRMS COORDINATOR	CBP administrative site

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.