CBP Port Code 0401 — Boston, MA

0401 is the U.S. Customs and Border Protection Schedule D port code for Boston, MA, in district 04. It is the four-digit code entered in the port field of CBP Form 7501 and in ACE, AMS and ISF filings. It is not a UN/LOCODE — the UN/LOCODE for this place is USBOS.

Schedule D port code0401
Port of entry Boston, MA listed as “BOSTON, MA”
Customs district04Boston, MAthe first two digits of every port code in the district
StateMA
FacilityPort of entry
UN/LOCODEUSBOS Boston →for carrier bookings and bills of lading — not for the 7501

Using 0401 on entry documents

Port code 0401 identifies Boston, MA as the port of entry on CBP Form 7501, the entry summary a broker files for every formal entry. The same four digits identify the port in ACE entry filings, in AMS manifest data and in the Importer Security Filing (ISF) that must be on file before ocean cargo loads for the United States. The code belongs to the customs district whose two-digit number it begins with — district 04 — and every port of entry in that district shares the same first two digits.

The code is a customs identifier, not a carrier one. Carriers, forwarders and NVOCCs book and manifest against the UN/LOCODE for the place, and the bill of lading shows that five-character code, not the Schedule D code. For Boston, MA that UN/LOCODE is USBOS; give the broker 0401 and the carrier the UN/LOCODE.

Codes are added and retired as ports of entry open, merge or close, so confirm 0401 against the current CBP publication before filing. Airlift USA does not hold a U.S. customs broker licence; entries on cargo we move are filed through our licensed broker network.

Other ports of entry in district 04

14 other ports of entry share district 04. Each has its own Schedule D page.

0402 Springfield, MA 0403 Worcester, MA 0404 Gloucester, MA 0405 New Bedford, MA 0406 Plymouth, MA 0407 Fall River, MA 0408 Salem, MA 0410 Bridgeport, ct 0411 Hartford. CT 0412 New Haven, ct 0413 New London, CT 0416 Lawrence, MA 0417 Logan Airport, MA airport0481 L.g. Hanscom Field, MA

Plan the rest of the entry

All CBP Schedule D port codes →Ocean transit-time estimator →Port and airport code finder →Chargeable weight calculator →Container load calculator →Ocean freight rate search →US tariff simulator →ISF filing service →US customs clearance →

Port code 0401 FAQs

0401 is the CBP Schedule D port code for Boston, MA. It is the four-digit U.S. Customs and Border Protection identifier for that port of entry, listed in district 04. Source: Schedule D — District/Port List, Foreign Trade Division, U.S. Census Bureau, April 2025.

Port codes: Schedule D — District/Port List, Foreign Trade Division, U.S. Census Bureau, April 2025 — Census Schedule D list. Cross-checked against CBP ACE M1 Import Manifest, Appendix E — Schedule D, U.S. CBP Port Codes, revised 2026-02-03.

Importing through Boston, MA?

Send us the origin, the cargo and the entry port and we will come back with a rate, a routing and the clearance steps. Airlift USA is a licensed NVOCC with direct carrier contracts on the major US trade lanes; customs clearance is coordinated through our licensed broker network.

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