Africa Coast to Europe (ACE) is an optical-fiber submarine cable system serving 24 countries on the Europe , west coast and south Africa, managed by a consortium of 20 members. The ACE cable connects more than 450 million people, either directly for coastal countries or through land links for landlocked countries such as

Mali Mali, officially the Republic of Mali, is a landlocked country in West Africa. It is the List of African countries by area, eighth-largest country in Africa, with an area of over . The country is bordered to the north by Algeria, to the east b ...

and

Niger Niger, officially the Republic of the Niger, is a landlocked country in West Africa. It is a unitary state Geography of Niger#Political geography, bordered by Libya to the Libya–Niger border, north-east, Chad to the Chad–Niger border, east ...

. ACE is also the first international submarine cable to land in

Equatorial Guinea Equatorial Guinea, officially the Republic of Equatorial Guinea, is a country on the west coast of Central Africa. It has an area of . Formerly the colony of Spanish Guinea, its post-independence name refers to its location both near the Equ ...

Gambia The Gambia, officially the Republic of The Gambia, is a country in West Africa. Geographically, The Gambia is the List of African countries by area, smallest country in continental Africa; it is surrounded by Senegal on all sides except for ...

Guinea Guinea, officially the Republic of Guinea, is a coastal country in West Africa. It borders the Atlantic Ocean to the west, Guinea-Bissau to the northwest, Senegal to the north, Mali to the northeast, Côte d'Ivoire to the southeast, and Sier ...

Liberia Liberia, officially the Republic of Liberia, is a country on the West African coast. It is bordered by Sierra Leone to Liberia–Sierra Leone border, its northwest, Guinea to Guinea–Liberia border, its north, Ivory Coast to Ivory Coast–Lib ...

Mauritania Mauritania, officially the Islamic Republic of Mauritania, is a sovereign country in Maghreb, Northwest Africa. It is bordered by the Atlantic Ocean to the west, Western Sahara to Mauritania–Western Sahara border, the north and northwest, ...

São Tomé and Príncipe São Tomé and Príncipe, officially the Democratic Republic of São Tomé and Príncipe, is an island country in the Gulf of Guinea, off the western equatorial coast of Central Africa. It consists of two archipelagos around the two main isla ...

and

Sierra Leone Sierra Leone, officially the Republic of Sierra Leone, is a country on the southwest coast of West Africa. It is bordered to the southeast by Liberia and by Guinea to the north. Sierra Leone's land area is . It has a tropical climate and envi ...

. Agreements are being put in place to allow the arrival of other operators in countries along the ACE cable route.

Guinea-Bissau Guinea-Bissau, officially the Republic of Guinea-Bissau, is a country in West Africa that covers with an estimated population of 2,026,778. It borders Senegal to Guinea-Bissau–Senegal border, its north and Guinea to Guinea–Guinea-Bissau b ...

is the next country to be connected to the submarine cable. ACE Consortium consists of telecommunications operators and member countries that have invested in the total 700 million dollars project, sometimes with the financial support of the

World Bank The World Bank is an international financial institution that provides loans and Grant (money), grants to the governments of Least developed countries, low- and Developing country, middle-income countries for the purposes of economic development ...

. The consortium agreement was signed on 5 June 2010 and on 15 December 2012, this 17,000 km-long cable was put into service for the first time. The official inauguration ceremony was held in

Banjul Banjul (, (US) and ), officially the City of Banjul, is the capital city of The Gambia. It is the centre of the eponymous administrative division which is home to an estimated 400,000 residents, making it The Gambia's largest and most densely ...

, on 19 December 2012. The 4 to 5 cms diameter cable runs at around 6,000m below the sea level. The maximum capacity of the entire system is increased from 12.8 Tbps in the design to 20 Tbps. It has been manufactured by

Alcatel Submarine Networks Alcatel Submarine Networks (ASN) is a French company and one of the three world leaders in the manufacture and installation of submarine cables. It was a subsidiary of Alcatel, then Alcatel-Lucent, until it was acquired by the Finnish group No ...

(ASN) and laid by ships from ASN and Orange Marine.

ACE consortium

The cable cost consortium members $700 million: * ACE Gabon *Bénin ACE GIE * Cable Consortium of Liberia * Canalink * Dolphin Telecom * Gambia Submarine Cable * GUILAB SA * International Mauritania Telecom * MTN Global Connect * Orange (France) * Orange Cameroun * Orange Côte d'Ivoire * Orange Mali * Orange Niger *Gestor de Infraestructuras de Telecomunicaciones de Guinea Ecuatorial *SCGB *

Sonatel Sonatel ''()'' is the principal telecommunications provider of Senegal. The company was created by Djibo Leyti Ka, when he was Ministry of Telecommunications in 1985 to provide Senegal with its own telecommunications industry, with Ndaly Ndiaye. ...

* STP Cabo

Landing points

Segment 1 *

France France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...

, Penmarch *

Portugal Portugal, officially the Portuguese Republic, is a country on the Iberian Peninsula in Southwestern Europe. Featuring Cabo da Roca, the westernmost point in continental Europe, Portugal borders Spain to its north and east, with which it share ...

, Carcavelos * Espagne, île de Tenerife *

Nouakchott Nouakchott ( ) is the capital and largest city of Mauritania. Located in the southwestern part of the country, it is one of the largest cities in the Sahara. The city also serves as the administrative and economic center of Mauritania. Once a ...

Senegal Senegal, officially the Republic of Senegal, is the westernmost country in West Africa, situated on the Atlantic Ocean coastline. It borders Mauritania to Mauritania–Senegal border, the north, Mali to Mali–Senegal border, the east, Guinea t ...

Dakar Dakar ( ; ; ) is the capital city, capital and List of cities in Senegal, largest city of Senegal. The Departments of Senegal, department of Dakar has a population of 1,278,469, and the population of the Dakar metropolitan area was at 4.0 mill ...

Segment 2 *

, Suro (coming up) *

Conakry Conakry ( , ; ; ; ) is the Capital city, capital and largest city of Guinea. A port city, it serves as the economic, financial and cultural centre of Guinea. Its population as of the 2014 Guinea census was 1,660,973. The current population of C ...

Freetown Freetown () is the Capital city, capital and largest city of Sierra Leone. It is a major port city on the Atlantic Ocean and is located in the Western Area of the country. Freetown is Sierra Leone's major urban, economic, financial, cultural, e ...

Monrovia Monrovia () is the administrative capital city, capital and largest city of Liberia. Founded in 1822, it is located on Cape Mesurado on the Atlantic Ocean, Atlantic coast and as of the 2022 census had 1,761,032 residents, home to 33.5% of Liber ...

Ivory Coast Ivory Coast, also known as Côte d'Ivoire and officially the Republic of Côte d'Ivoire, is a country on the southern coast of West Africa. Its capital city of Yamoussoukro is located in the centre of the country, while its largest List of ci ...

Abidjan Abidjan ( , ; N'Ko script, N'ko: ߊߓߌߖߊ߲߬) is the largest city and the former capital of Ivory Coast. As of the Demographics of Ivory Coast, 2021 census, Abidjan's population was 6.3 million, which is 21.5 percent of the overall population ...

Segment 3 *

Ghana Ghana, officially the Republic of Ghana, is a country in West Africa. It is situated along the Gulf of Guinea and the Atlantic Ocean to the south, and shares borders with Côte d’Ivoire to the west, Burkina Faso to the north, and Togo to t ...

Accra Accra (; or ''Gaga''; ; Ewe: Gɛ; ) is the capital and largest city of Ghana, located on the southern coast at the Gulf of Guinea, which is part of the Atlantic Ocean. As of 2021 census, the Accra Metropolitan District, , had a population of ...

Benin Benin, officially the Republic of Benin, is a country in West Africa. It was formerly known as Dahomey. It is bordered by Togo to the west, Nigeria to the east, Burkina Faso to the north-west, and Niger to the north-east. The majority of its po ...

Cotonou Cotonou (; ) is the largest city in Benin. Its official population count was 679,012 inhabitants in 2012; however, over two million people live in the larger urban area. The urban area continues to expand, notably toward the west. The city lies ...

Nigeria Nigeria, officially the Federal Republic of Nigeria, is a country in West Africa. It is situated between the Sahel to the north and the Gulf of Guinea in the Atlantic Ocean to the south. It covers an area of . With Demographics of Nigeria, ...

Lagos Lagos ( ; ), or Lagos City, is a large metropolitan city in southwestern Nigeria. With an upper population estimated above 21 million dwellers, it is the largest city in Nigeria, the most populous urban area on the African continent, and on ...

Cameroon Cameroon, officially the Republic of Cameroon, is a country in Central Africa. It shares boundaries with Nigeria to the west and north, Chad to the northeast, the Central African Republic to the east, and Equatorial Guinea, Gabon, and the R ...

, Kribi *

, Bata *

Gabon Gabon ( ; ), officially the Gabonese Republic (), is a country on the Atlantic coast of Central Africa, on the equator, bordered by Equatorial Guinea to the northwest, Cameroon to the north, the Republic of the Congo to the east and south, and ...

Libreville Libreville (; ) is the capital and largest city of Gabon, located on the Gabon Estuary. Libreville occupies of the northwestern province of Estuaire Province, Estuaire. Libreville is also a port on the Gabon Estuary, near the Gulf of Guinea. A ...

* Sao Tomé et principe,

São Tomé São Tomé is the capital and largest city of the Central African island country of São Tomé and Príncipe. Its name is Portuguese for " Saint Thomas". Founded in the 15th century, it is one of Africa's oldest colonial cities. History Álv ...

Segment 4 (The last segment is in service - 1 June 2021) *

South Africa South Africa, officially the Republic of South Africa (RSA), is the Southern Africa, southernmost country in Africa. Its Provinces of South Africa, nine provinces are bounded to the south by of coastline that stretches along the Atlantic O ...

Technical features

This 17 000-kilometers long cable is the only one connecting 24 west African and European countries. The ACE consortium members are organized according to a global access concept: multiple investors in one landing station. ACE marine routes have a low history of fault and a time-proof technology. The cable is able to adopt newer transponder technology. Technical features are as below : * PoP-to-PoP connection providing access to major cities in Europe and Africa (

Paris Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, largest city of France. With an estimated population of 2,048,472 residents in January 2025 in an area of more than , Paris is the List of ci ...

Lisbon Lisbon ( ; ) is the capital and largest city of Portugal, with an estimated population of 567,131, as of 2023, within its administrative limits and 3,028,000 within the Lisbon Metropolitan Area, metropolis, as of 2025. Lisbon is mainlan ...

Cape Town Cape Town is the legislature, legislative capital city, capital of South Africa. It is the country's oldest city and the seat of the Parliament of South Africa. Cape Town is the country's List of municipalities in South Africa, second-largest ...

) * 100G technology proof * Design capacity increased = 20 terabytes per second * Lit capacity = 1.6 terabytes per second * Initial capacity 200 Gbit/s on segment 1, 160 Gbit/s on segments 2 and 3 * Longest DLS = 4400 kilometres (Penmarch - Dakar) * Low latency (express and omnibus fibres) * Uses wavelength division multiplexing (the most advanced for submarine cables)

Cable systems

Individual cable systems off the west coast of Africa include: * ATLANTIS-2 * GLO-1 * Main One * SAT-2 * SAT-3/WASC * WACS

References

External links