| Sea Area Code | Sea Area |
|---|---|
| 1 | Baltic Sea |
| 2 | Kattegat |
| 3 | Skaggerak |
| 4 | North Sea |
| 5 | Greenland Sea |
| 6 | Norwegian Sea |
| 7 | Barentsz Sea |
| 8 | White Sea |
| 9 | Kara Sea |
| 10 | Laptev Sea |
| 11 | East Siberian Sea |
| 12 | Chukchi Sea |
| 13 | Beaufort Sea |
| 14 | Northwestern Passages |
| 15 | Davis Strait |
| 16 | Hudson Bay |
| 17 | Arctic Ocean |
| 18 | Inner Seas off the West Coast of Scotland |
| 19 | Irish Sea and St. George's Channel |
| 20 | Bristol Channel |
| 21 | English Channel |
| 22 | Bay of Biscay |
| 23 | North Atlantic Ocean |
| 24 | Gulf of St-Lawrence |
| 25 | Bay of Fundy |
| 26 | Gulf of Mexico |
| 27 | Caribbean Sea |
| 28 | Mediterranean Sea |
| 29 | Sea of Marmara |
| 30 | Black Sea |
| 31 | Sea of Azov |
| 32 | South Atlantic Ocean |
| 33 | Rio de La Plata |
| 34 | Gulf of Guinea |
| 35 | Gulf of Suez |
| 36 | Gulf of Aqaba |
| 37 | Red Sea |
| 38 | Gulf of Aden |
| 39 | Arabian Sea |
| 40 | Gulf of Oman |
| 41 | Persian Gulf |
| 42 | Laccadive Sea |
| 43 | Bay of Bengal |
| 44 | Andaman or Burma Sea |
| 45 | Indian Ocean |
| 46 | Malacca Strait |
| 47 | Gulf of Thailand |
| 48 | East Indian Archipelago (Indonesia) |
| 49 | South China Sea |
| 50 | Eastern China Sea |
| 51 | Yellow Sea |
| 52 | Japan Sea |
| 53 | Inland Sea |
| 54 | Sea of Okhotsk |
| 55 | Bering Sea |
| 56 | Philippine Sea |
| 57 | North Pacific Ocean |
| 58 | Gulf of Alaska |
| 59 | The Coastal Waters of Southeast Alaska and British Columbia |
| 60 | Gulf of California |
| 61 | South Pacific Ocean |
| 62 | Great Australian Bight |
| 63 | Tasman Sea |
| 64 | Coral Sea |
| 65 | Solomon Sea |
| 66 | Bismarck Sea |
| 67 | Southern Ocean |