National numbering agency
A national numbering agency is the organisation in each country responsible for issuing International Securities Identification Numbers as described by the ISO 6166 standard and the Classification of Financial Instruments code as described by the ISO 10962 standard. The role of NNA is typically assigned to the national stock exchange, central bank, or financial regulator but may be as diverse as a financial data provider or clearing and custodian organisation for that country.
There is a global governing body that coordinates the work of the NNAs called the Association of National Numbering Agencies.
List of NNAs by country
| Country | NNA |
| Algeria | Algerie Clearing |
| Argentina | Caja de Valores S.A. |
| Armenia | Central Depository of Armenia OJSC |
| Australia | Australian Stock Exchange Limited |
| Austria | Oesterreichische Kontrollbank AG |
| Azerbaijan | National Depository Center |
| Bahrain | Bahrain Stock Exchange |
| Bangladesh | Central Depository Bangladesh Ltd. |
| Barbados | Barbados Central Securities Depository Inc |
| Belarus | The Republican Unitary Enterprise "The Republican Central Securities Depository" |
| Belgium | SIX Financial Information |
| Bolivia | Entitad de Deposito de Valores de Bolivia S.A. |
| Botswana | Botswana Stock Exchange |
| Brazil | BM&F Bovespa - Bolsa de Valores, Mercadorias & Futuros de São Paulo - BVSP |
| Bulgaria | Central Depository of Bulgaria |
| Canada | The Canadian Depository for Securities Ltd |
| Cape Verde | Bolsa de Valores de Cabo Verde |
| Chile | Deposito Central de Valores |
| China | China Securities Regulatory Commission |
| Colombia | Deposito Centralizado de Valores de Colombia - DECEVAL S.A. |
| Costa Rica | Central de Valores - CEVAL |
| Croatia | Central Depository and Clearing Company Inc. of Croatia |
| Cyprus | Cyprus Stock Exchange |
| Czech Republic | Czech National Bank |
| Denmark | VP Securities Services |
| Dominican Republic | CEVALDOM |
| Ecuador | DECEVALE S.A. |
| Egypt | Misr for Central Clearing, Depository and Registry |
| El Salvador | Central Deposito de Valores S.A. de C.V. |
| Estonia | Estonian Central Depository for Securities |
| Finland | Euroclear Finland |
| France | Euroclear France |
| Georgia | National Bank of Georgia |
| Germany | WM Datenservice |
| Ghana | Ghana Stock Exchange |
| Greece | Hellenic Exchanges S.A. |
| Guatemala | Bolsa de Valores Nacional, S.A. |
| Honduras | Comision Nacional de Bancos y Seguros |
| Hongkong | Hong Kong Exchanges and Clearing Ltd |
| Hungary | KELER – Central Clearing House and Depository Ltd. |
| Iceland | NASDAQ OMX/Icelandic Securities Depository |
| India | Securities and Exchange Board of India |
| Indonesia | PT Kustodian Sentral Efek Indonesia |
| Iran | Tehran Securities Exchange Technology Management Company |
| Ireland | Irish Stock Exchange |
| Israel | Tel Aviv Stock Exchange |
| Italy | Banca d'Italia |
| Japan | Tokyo Stock Exchange |
| Jordan | Securities Depository Center |
| Kazakhstan | ISC -Central Securities Depository |
| Kenya | Nairobi Stock Exchange |
| Korea, South | Korea Exchange - KRX |
| Kuwait | Kuwait Clearing Company |
| Latvia | OMX - Latvian Central Depository |
| Lebanon | Midclear S.A.L. |
| Libya | Libyan Stock Market |
| Lithuania | Central Securities Depository of Lithuania |
| Luxembourg | Clearstream Banking |
| Malaysia | Bursa Malaysia |
| Malta | Malta Stock Exchange |
| Mauritius | Central Depository & Settlement Co. Ltd |
| Mexico | S.D. Indeval SA de CV |
| Montenegro | Central Depository Agency of Montenegro |
| Mongolia | Mongolian Securities Clearing House and Central Depository |
| Morocco | MAROCLEAR S.A. |
| Netherlands | Euroclear Netherlands NIEC |
| Nepal | CDS and Clearing Ltd., Kathmandu, Nepal |
| New Zealand | No single numbering agency; two are active New Zealand Stock Exchange and Reserve Bank of New Zealand |
| Nicaragua | Central Nicaragüense de Valores, Cenival |
| Nigeria | Central Securities Clearing System Ltd. |
| North Macedonia | Central Securities Depository AD Skopje |
| Norway | Verdipapirsentralen ASA |
| Oman | Muscat Depository & Securities Registration Co. |
| Pakistan | Central Depository Company of Pakistan Ltd |
| Panama | Bolsa de Valores de Panama S.A. |
| Paraguay | Bolsa de Valores y Productos Asunción |
| Peru | Bolsa de Valores de Lima |
| Philippines | Philippine Stock Exchange, Inc. |
| Poland | Krajowy Depozyt Papierów Wartościowych |
| Portugal | |
| Romania | Depozitarul Central S.A. |
| Russia | The National Depository Center |
| Saudi Arabia | Saudi Financial Market |
| Serbia | Central Securities Depository A.D. Beograd |
| Singapore | Singapore Exchange |
| Slovakia | Central Securities Depository SR, Inc. |
| Slovenia | KDD Central Securities Clearing Corporation |
| South Africa | JSE Ltd |
| Spain | Comisión Nacional del Mercado de Valores |
| Sri Lanka | Colombo Stock Exchange |
| Swaziland | Central Bank of Swaziland |
| Sweden | Euroclear Sweden AB |
| Switzerland | SIX Financial Information |
| Syria | Damascus Securities Exchange |
| Taiwan | Taiwan Stock Exchange Corporation |
| Tanzania | Dar es Salaam Stock Exchange |
| Thailand | Thailand Securities Depository Co., Ltd |
| Tunisia | Sticodevam |
| Turkey | Takasbank |
| Uganda | Uganda Securities Exchange |
| Ukraine | National Depository of Ukraine |
| United Kingdom | London Stock Exchange |
| United States | Standard & Poor's - CUSIP Global Services |
| Venezuela | Bolsa de Valores de Caracas, C.A. |
| Vietnam | Vietnam Securities Depository |
| Zambia | Lusaka Stock Exchange |
| Zimbabwe | Zimbabwe Stock Exchange |
| Economic Community of Central African States | Bourse des Valeurs Mobilieres de l´Afrique Centrale |
| West African Economic and Monetary Union | Bourse Régionale des Valeurs Mobilières |
| International | Clearstream Banking |
| International | Euroclear Bank S.A./N.V |