| COUNTRY | GF3 Code | Data centre CODE | DATA CENTRE | Prefix of Cruise Identifiers (for national data sets) |
|---|
| Albania | 72 | AP | Polytechnic University of Tirana - PUT | AP72 |
| Algeria | AL | AI | ISMAL | AIAL |
| Belgium | 11 | BG | Universite de Liege, GHER | BG11 |
| Belgium | 11 | BU | MUMM | BU11 |
| Belgium | 11 | BV | VLIZ - Flanders Marine Institute | BV11 |
| Bulgaria | 15 | BM | NIMH National Institute Meteorology and Hydrology | BM15 |
| Bulgaria | 15 | BO | Institute of Oceano.,Bulgarian Academy of Sciences | BO15 |
| Canada | 18 | CM | Department of Fisheries and Oceans (DFO-MPO) | CM18 |
| Croatia | HR | IF | Institute of Oceanography & Fisheries, Split | IFHR |
| Cyprus | CY | CN | Agriculture Natural Res. Fisheries Dept., CyNODC | CNCY |
| Denmark | 26 | DI | ICES | DI26 |
| Denmark | 26 | DM | Danemark Meteorogical Institute, DMI | DM26 |
| Denmark | 26 | DN | NERI - Nat. Environmental Research Institute | DN26 |
| Egypt | 27 | EN | National Institute Oceanography Fisheries, ENODC | EN27 |
| Estonia | ES | EM | MSI - Marine Systems Institute | EMES |
| Finland | 34 | FM | Finnish Institute of Marine Research, FIMR | FM34 |
| France | 35 | FC | Collecte Localisation Satellites SA - CLS | FC35 |
| France | 35 | FI | IFREMER/SISMER | FI35 |
| France | 35 | FS | SHOM | FS35 |
| Georgia | GE | NO | National Oceanographic Centre, Tbilisi | NOGE |
| Germany | 06 | AD | Deutsches Ozeanopraphisches Datenzentrum, DOD/BSH | AD06 |
| Greece | 36 | GN | HNODC/HCMR | GN36 |
| Iceland | 46 | IC | MRI - Marine Research Institute | IC46 |
| Ireland | 45 | IR | Marine Insitute | IR45 |
| Israel | 47 | IL | IOLR/ISRAMAR | IL47 |
| Italy | 48 | IE | ENEA | IE48 |
| Italy | 48 | II | IRPEM | II48 |
| Italy | 48 | IN | INGV | IN48 |
| Italy | 48 | IO | OGS | IO48 |
| Latvia | LA | LI | IAE/UL - Institute of Aquatic Ecology | LILA |
| Lebanon | 52 | LB | NCMS, National Centre for Marine Sciences | LB52 |
| Lithuania | LT | LC | CMR -Center of Marine Research | LCLT |
| Malta | ML | ML | University of Malta, Physical Oceanography Unit | MLML |
| Morocco | 56 | MI | Institut National de Recherche Halieutique, INRH | MI56 |
| Netherlands | 64 | RI | National Oceanographic Data Commission (NODC-RIKZ) | RI64 |
| Norway | 58 | NI | Inst. Marine Research-Norwegian Marine Data Centre | NI58 |
| Poland | 67 | PM | IMGW Inst. of Meteorology and Water management | PM67 |
| Portugal | 68 | PI | IHPT - Hydrographic Institute | PI68 |
| Romania | 73 | RN | NIMRD Nat. Inst. for Marine Research & Development | RN73 |
| Russian Federation/FSU | 90 | RS | SIO/RAS - Shirshov Institute of Oceanology | RS90 |
| Russian Federation/FSU | 90 | WB | RIHMI-WDCB | WB90 |
| Senegal | SE | SD | Centre de recherches oceanographiques de Dakar | SDSE |
| Slovenia | SN | SN | NIB/MBS Nat. Inst. Biology/Marine Biology Station | SNSN |
| Spain | 29 | SB | Balearic Islands University, UIB | SB29 |
| Spain | 29 | SI | IEO - Instituto Espanol de Oceanografia | SI29 |
| Sweden | 77 | SM | Swedish Meteorogical and Hydrological Inst., SMHI | SM77 |
| Tunisia | 88 | TI | Inst. Nat. Sciences &Technologies de la Mer | TI88 |
| Turkey | 89 | IM | Institute of Marine Sciences IMS-METU | IM89 |
| Turkey | 89 | TN | Turkish Navy Hydrographic Service, DNHO | TN89 |
| Ukraine | UR | UM | Marine Hydrophysical Institute, MIST | UMUR |
| United Kingdom | 74 | UB | British Oceanographic Data Center | UB74 |
| United Kingdom | 74 | UH | United Kingdom Hydrographic Office | UH74 |
| United States of America | 31 | WA | NOAA-WDCA | WA31 |