UN/LOCODE GT STC identifies Puerto Santo Tomás de Castilla, 18, Guatemala. 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 Guatemala.
UN/LOCODEGT STC
Place namePuerto Santo Tomás de Castilla
CountryGuatemala (GT)
Subdivision18
Function classifiersSeaportcode list string 1-------
Carriers print the port of loading and port of discharge on bookings and bills of lading as UN/LOCODEs, so GTSTC is what you will normally see against Puerto Santo Tomás de Castilla on carrier paperwork and in schedule and tracking feeds. The first two characters, GT, are the ISO 3166-1 country code for Guatemala; 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.
Schedule D codes are a US-only system, so Puerto Santo Tomás de Castilla does not have one. If Puerto Santo Tomás de Castilla is your origin, the Schedule D code that matters is the one for your US port of entry — every US port page in this tool shows it where CBP publishes it.
The UN/LOCODE for Puerto Santo Tomás de Castilla, 18, Guatemala is GTSTC, printed as GT STC. The first two characters (GT) 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.
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