CBP port code 1901 is Mobile, AL, a Schedule D port of entry in district 19, entered in the port field of Form 7501, ACE and ISF filings. Its UN/LOCODE is USMOB.
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 Mobile, AL.
Schedule D port code1901
Port of entry Mobile, AL listed as “MOBILE, AL”
Customs district19Mobile, ALthe first two digits of every port code in the district
StateAL
FacilityPort of entry
UN/LOCODEUSMOB Mobile →for carrier bookings and bills of lading, not the 7501
Using 1901 on entry documents
Port code 1901 identifies Mobile, AL 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: 1901 belongs to district 19, 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 Mobile, AL that UN/LOCODE is USMOB; give the broker 1901 and the carrier the UN/LOCODE.
CBP adds and retires codes as ports of entry open, merge or close, so confirm 1901 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 district 19
4 other ports of entry share district 19, each with its own Schedule D page.
1901 is the CBP Schedule D port code for Mobile, AL. It is the four-digit U.S. Customs and Border Protection identifier for that port of entry, listed in district 19. 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 1901.
Get a quote to import via Mobile, AL
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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