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U.S. GUIDs (Geographic Unique IDs) which may be used in lieu of UN/LOCODES
Submit the following to request a geographically unique ID (GUID) code for an unencoded U.S. waterborne facility or geographically unique navigation point of interest (POI):

ft or

South-East corner point

* required field
*1 required if Center Point selected
*2 required field if North West Corner Point selected
** if assigned/available/known

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Have an AIS encoding or LOCODE question? Please contact us .