CBP Port Code 0406 — Plymouth, MA

CBP port code 0406 is Plymouth, MA, a Schedule D port of entry in Boston, MA (district 04), entered in the port field of Form 7501, ACE and ISF filings.

Get a quote to import via Plymouth, MAUS customs clearance →ISF (10+2) filing →

Also on this page: the customs district, the facility type, the UN/LOCODE your carrier books against, the other ports of entry in the district, and clearance and ISF help for cargo entering through Plymouth, MA.

Schedule D port code0406
Port of entry Plymouth, MA listed as “PLYMOUTH, MA”
Customs district04Boston, MAthe first two digits of every port code in the district
StateMA
FacilityPort of entry

Using 0406 on entry documents

Port code 0406 identifies Plymouth, 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), which must be on file before ocean cargo loads for the United States.

The first two digits are the customs district: 0406 belongs to Boston, MA (district 04), and every port of entry in that district starts with the same two digits.

The code is for customs, not carriers. 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. Many Schedule D ports of entry — airports, land border crossings, user-fee airports and inland ports — have no UN/LOCODE seaport entry at all, and this site does not hold a UN/LOCODE page for Plymouth, MA; the UN/LOCODE finder searches the full code list.

CBP adds and retires codes as ports of entry open, merge or close, so confirm 0406 against the current CBP publication before filing. Airlift USA does not hold a U.S. customs broker license; entries on cargo we move are filed through our licensed broker network.

Other ports of entry in Boston, MA (district 04)

14 other ports of entry share district 04, each with its own Schedule D page.

0401 Boston, MA 0402 Springfield, MA 0403 Worcester, MA 0404 Gloucester, MA 0405 New Bedford, 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 airport · IATA BOS0481 L.g. Hanscom Field, MA

Plan the rest of the entry

All CBP Schedule D port codes →Ocean transit-time estimator →Sealanes: services and sailings by lane →Port code finder (UN/LOCODE) →Airport code finder (IATA/ICAO) →Chargeable weight calculator →Container load calculator →Ocean freight rates and quotes →US tariff simulator →ISF filing service →US customs clearance →

Terms on this page:Port of Entry (POE)Entry Summary (CBP Form 7501)Formal EntryAutomated Manifest System (AMS)Bill of Lading (BOL)

Port code 0406 FAQs

0406 is the CBP Schedule D port code for Plymouth, MA. It is the four-digit U.S. Customs and Border Protection identifier for that port of entry, listed in Boston, MA (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, which lists 0406.

Get a quote to import via Plymouth, MA

Tell us the origin, the cargo and the container type or weight, and we’ll 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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