UN/LOCODE US POA identifies Port Arthur, TX, United States of America. UNECE classifies it as seaport. Below: the classifiers, the location reference, the CBP entry code where CBP publishes one, and the Airlift ocean freight lanes serving United States of America.
UN/LOCODEUS POA
Place namePort Arthur
CountryUnited States of America (US)
SubdivisionTX
Function classifiersSeaportRoad terminalcode list string 1-3-----
CBP Schedule D code2101for the port field of CBP Form 7501 — not the UN/LOCODE
Carriers print the port of loading and port of discharge on bookings and bills of lading as UN/LOCODEs, so USPOA is what you will normally see against Port Arthur on carrier paperwork and in schedule and tracking feeds. The first two characters, US, are the ISO 3166-1 country code for United States of America; the remaining three identify the place within it.
A UN/LOCODE names a place, not a berth. Where a port city runs several container terminals, UNECE often assigns the terminals their own codes alongside the city code — which is why a booking can legitimately show a code you did not expect. Take the code from the carrier booking rather than picking the one that reads most like the port name.
For a US import, Port Arthur also has a CBP Schedule D code, 2101. That four-digit number identifies the customs port of entry and is what goes in the port field of CBP Form 7501. The two systems are unrelated and are not interchangeable: USPOA on the bill of lading, 2101 on the entry summary. Airlift coordinates entry filing through our licensed broker network.
Airlift ocean freight lanes serving United States of America
Lane guides carry the port pairs Airlift actually moves, typical schedule-dependent transit ranges drawn from our own shipment history, commodity notes and customs requirements.
The UN/LOCODE for Port Arthur, TX, United States of America is USPOA, printed as US POA. The first two characters (US) are the ISO country code and the last three identify the location. Source: UNECE UN/LOCODE Code List, edition 2024-2.
Location data: UNECE UN/LOCODE Code List, edition 2024-2 — public data published by the United Nations Economic Commission for Europe (UN/CEFACT). UN/LOCODE code list. Schedule D code: CBP ACE M1 Import Manifest, Appendix E — Schedule D, U.S. CBP Port Codes, revised 2026-02-03 — CBP publication, cross-checked against the Census Schedule D list.
Get a quote through Port Arthur
Send us the origin and destination and we will come back with a rate and a routing. 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. Transit times we quote are typical and schedule-dependent.