CBP port code 5309 is Houston Intercontl Airp, TX, a Schedule D port of entry in Houston-Galveston, TX (district 53), entered in the port field of Form 7501, ACE and ISF filings. Its UN/LOCODE is USIA9.
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 Houston Intercontl Airp, TX.
Schedule D port code5309
Port of entry Houston Intercontl Airp, TX listed as “HOUSTON INTERCONTL AIRP, TX”
Customs district53Houston-Galveston, TXthe first two digits of every port code in the district
Port code 5309 identifies Houston Intercontl Airp, TX 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: 5309 belongs to Houston-Galveston, TX (district 53), 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 Houston Intercontl Airp, TX that UN/LOCODE is USIA9; give the broker 5309 and the carrier the UN/LOCODE.
CBP adds and retires codes as ports of entry open, merge or close, so confirm 5309 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.
Ocean freight into George Bush Intercontinental Apt/Houston
The lane guides and port-pair pages Airlift publishes for cargo arriving at George Bush Intercontinental Apt/Houston (USIA9), with typical schedule-dependent transit ranges and a quote form with the route filled in.
5309 is the CBP Schedule D port code for Houston Intercontl Airp, TX. It is the four-digit U.S. Customs and Border Protection identifier for that port of entry, listed in Houston-Galveston, TX (district 53). 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 5309.
Get a quote to import via Houston Intercontl Airp, TX
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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