AIS ENCODING GUIDE AND U.S. DESTINATION CODES

• USCG AIS Encoding Guide
• Guidance on the use of the UN/LOCODE [when on International voyages] in the Destination Field in AIS Messages (IMO SN/Circ.244)
• Listing of U.S. UN/LOCODES

U.S. GUIDs (Geographic Unique IDs) which may be used in lieu of UN/LOCODES

• Listing of LOCODES sorted by Latitude-Longitude, Facility Type, and Name
• Listing of LOCODES sorted by Waterway, Facility Type, and Name
• U.S. Army Corps of Engineers Master Dock (GUID) webpage

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):

Your Name:
Point of Contact (POC):
POC Email* :
POC Tel#:
Facility/POI Name* :
Type* :	Select a Type --> Anchorage Bridge Dock Junction Lock and/or Dam Milepoint Open Water Operating Area Other Tie Off Virtual Dock Virtual Marina
Waterway Name:
Port Name:
Municipality:
State:
Center Point:     Radius *1 ft or North West Corner Point:
Latitude* :       Longitude* : South-East corner point
Latitude*2 :       Longitude*2 :
Mile Marker** :
UN LOCODE** :

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



Enter displayed code     

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