CBP Port Code 3801: Detroit, MI – Schedule D Port of Entry

Q: Where do I enter port code 3801?

In the port-of-entry field of CBP Form 7501 (the entry summary), in ACE entry and AMS manifest filings, and in the Importer Security Filing for ocean cargo. Confirm the current code against CBP’s own Schedule D publication before filing; Airlift USA coordinates entries through its licensed customs broker network.

Q: Which customs district is Detroit, MI in?

The first two digits of a Schedule D code are the district, so 3801 belongs to district 38. The Census list shows 18 other ports of entry in the same district.

Q: Is 3801 the same as the UN/LOCODE for Detroit, MI?

No. 3801 is the customs entry code. The UN/LOCODE used on carrier bookings and bills of lading for this place is USDET (Detroit). Give your broker the Schedule D code and your carrier the UN/LOCODE.

Q: How current is this list?

This directory reproduces the Census Bureau Schedule D district/port list produced in April 2025, checked against CBP’s ACE Appendix E (the list of valid ACE port codes), revised 2026-02-03, which also lists 3801. CBP adds and retires ports of entry from time to time, so treat the page as a reference and confirm against the current CBP publication before filing.

CBP Port Code 3801 — Detroit, MI

CBP port code 3801 is Detroit, MI, a Schedule D port of entry in district 38, entered in the port field of Form 7501, ACE and ISF filings. Its UN/LOCODE is USDET.

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 Detroit, MI.

Using 3801 on entry documents

Port code 3801 identifies Detroit, MI 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: 3801 belongs to district 38, 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. For Detroit, MI that UN/LOCODE is USDET; give the broker 3801 and the carrier the UN/LOCODE.

CBP adds and retires codes as ports of entry open, merge or close, so confirm 3801 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.

Port code 3801 FAQs

What is port code 3801?

3801 is the CBP Schedule D port code for Detroit, MI. It is the four-digit U.S. Customs and Border Protection identifier for that port of entry, listed in district 38. Source: Schedule D — District/Port List, Foreign Trade Division, U.S. Census Bureau, April 2025.

Where do I enter port code 3801?

Which customs district is Detroit, MI in?

Is 3801 the same as the UN/LOCODE for Detroit, MI?

How current is this list?

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 3801.

Get a quote to import via Detroit, MI

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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CBP Port Code 3801 — Detroit, MI

Using 3801 on entry documents

Other ports of entry in district 38

Plan the rest of the entry

Port code 3801 FAQs

Get a quote to import via Detroit, MI

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