| Port Code | Port Name | Country |
| CASRL | Sainte-Rosalie | Canada |
| CASRM | St Rémi | Canada |
| CASRO | St Romuald-d'Etchemin | Canada |
| CASRR | Sorrento | Canada |
| CASRT | South River | Canada |
| CASSA | St Sauveur-des-Monts | Canada |
| CASSB | Saint Simon-de-Bagot | Canada |
| CASSE | St Simeon | Canada |
| CASSL | St Sébastien/Le Haut-Richelieu | Canada |
| CASSM | Sault Ste Marie | Canada |
| CASSN | Stanbridge Station | Canada |
| CASSP | Sandspit | Canada |
| CASSQ | La Sarre | Canada |
| CASSV | Saint Sylvere | Canada |
| CASTB | Steinbach | Canada |
| CASTC | Stoney Creek | Canada |
| CASTE | Sainte-Thérèse | Canada |
| CASTG | St George | Canada |
| CASTH | St Thomas | Canada |
| CASTJ | St Julie | Canada |
| CASTL | St Antoine-des-Laurentides | Canada |
| CASTM | Ste Martine | Canada |
| CASTN | Stellarton | Canada |
| CASTO | Saint-Timothée | Canada |
| CASTP | St Prime | Canada |
| CASTQ | Ste Thérèse | Canada |
| CASTR | Stratford | Canada |
| CASTS | St Stephen | Canada |
| CASTT | Strathroy | Canada |
| CASTV | Stephenville | Canada |
| CASTW | Stewart | Canada |
| CASTX | St Constant | Canada |
| CASTY | Stayner | Canada |
| CASUB | St Ubald | Canada |
| CASUD | Sudbury | Canada |
| CASUM | Summerside | Canada |
| CASUR | Summer Beaver | Canada |
| CASUS | Sussex | Canada |
| CASUY | Surrey | Canada |
| CASUZ | Summerland | Canada |
| CASVA | Saint-Vallier | Canada |
| CASVE | Ste Veronique | Canada |
| CASVI | Streetsville | Canada |
| CASVL | St Vallier | Canada |
| CASVQ | Saint-Valérien | Canada |
| CASWD | Sherwood | Canada |
| CASWE | Stewiacke | Canada |
| CASWL | Snow Lake | Canada |
| CASWP | Sherwood Park | Canada |
| CASWT | Silver Water | Canada |
| CASXC | St Clet | Canada |
| CASXO | Saanichton Bay | Canada |
| CASYD | Sydney | Canada |
| CASYF | Silva Bay | Canada |
| CASYM | Stony Mountain | Canada |
| CASYP | Stony Plain | Canada |
| CASYQ | Sillery | Canada |
| CASYT | Stoney Point, Essex | Canada |
| CASZF | Schanzenfeld | Canada |
| CATAB | Tabusintac | Canada |
| CATAD | Tadoussac | Canada |
| CATAH | Tagish | Canada |
| CATAL | Talbotville | Canada |
| CATAR | Tara | Canada |
| CATAS | Tasu | Canada |
| CATAV | Tavistock | Canada |
| CATBG | Tillsonburg | Canada |
| CATBN | Terrebonne | Canada |
| CATBR | Taber | Canada |
| CATCG | Temiscaming | Canada |
| CATCH | Taschereau | Canada |
| CATDS | Tracadie-Sheila | Canada |
| CATEC | Tecumseh | Canada |
| CATEU | Teulon | Canada |
| CATEX | Texada Island | Canada |
| CATGU | Tatamagouche | Canada |
| CATGY | Tigerlily | Canada |
| CATHA | Thamesford | Canada |
| CATHD | Thorold | Canada |
| CATHE | Thetford Mines | Canada |
| CATHF | Thedford | Canada |
| CATHH | Three Hills | Canada |
| CATHL | Thornhill | Canada |
| CATHU | Thunder Bay | Canada |
| CATIG | Tignish | Canada |
| CATIL | Inverlake | Canada |
| CATIN | Hastings | Canada |
| CATIV | Tiverton | Canada |
| CATIY | Tilbury | Canada |
| CATLB | Tilbury Is | Canada |
| CATMR | Town Mount Royal | Canada |
| CATND | Thorndale | Canada |
| CATNS | Tungsten | Canada |
| CATOQ | Toquart Bay | Canada |
| CATOR | Toronto | Canada |
| CATOT | Tottenham | Canada |
| CATPS | Trepassey | Canada |
| CATRA | Tracadie | Canada |
| CATRB | Trinity Bay | Canada |
| CATRC | Tracy | Canada |