FIRMSapi Get a free key

FIRMS code

B947 AMERICAN TRANSPORT LINES

Deleted Importer's premises

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
B947
Name
AMERICAN TRANSPORT LINES
Address
1801 S CLINTON ST
BALTIMORE, MD 21224-5806
Status
Deleted (D)
Facility type
Importer's premises (06)
CBP port
Baltimore, MD (1303)
CBP region
1
Last changed
2026-10-23
Data as of
2026-10-23

Pre-filing validation

Validate B947 before you file

Validation fails B947: 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":"B947","port":"1303","use":"location_of_goods"}'
Get a free key Validation guide

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.