Is the level of Internet diversity at a country’s international frontier a good measure for internet disconnection risk? Renesys believes it is as published on November 2012. As a metric this makes a lot of sense as it is an easy to compute and fairly objective measurement.

We didn’t have access to the complete list of countries until now. We can now also see these categories as a level of international telecommunication openness to the world which would decongest international traffic coming in and out of the country possibly affecting on international traffic latencies.

As Renesys points out we have to use the words ‘fairly objective’ as a Network Service Provider (NSP) could have a foreign transit provider not visible in the routing tables which would end up not being computed. Of course we should take into account that population, geographic and real bandwidth demand are also variables on this equation.

But is it really easy to disconnect a whole country from the Internet? This would obviously relay on different factors like 1) the number of operators in the country having direct links with other operators through the national frontiers and 2) how much control is exercised by governments.

Renesys classifies a country as being at severe risk of Internet disconnection if it has only 1 or 2 companies at the international frontier. Significant risk if less than 10 operators. Low risk when a country has from 10 to

40 companies. Finally, if a country has more than 40 companies it is then likely to be extremely resistant to Internet disconnection. But how many countries would we find under each classification category? This information was not available until very recently and we were able to now list it and build a visual graph.


61 countries at severe disconnection risk. This means there is a very low internationally oriented Telecom diversity of only 1 or 2 companies at the international frontier:

Andorra, Anguila, Netherlands Antilles, Aruba, Åland Islands, Barbados, Bonaire, Bhutan, Central African Republic, Côte d’Ivoire, Cook Islands, Cuba, Djibouti, Dominia, Ethiopia, Faroe Islands, Grenada, French Guiana, Greenland, Gambia, Guinea, Guadeloupe, Guyana, British Indian Ocean Territory, Jersey, Comoros, Saint Kitts and Nevis, North Korea, Lesotho, Libya, Monaco, Saint Martin (French part), Marshall Islands, Mali, Myanmar, Mauritania, Norfolk Island, Nauru, French Polynesia, Saint Pierre and Miquelon, Palau, Réunion, Solomon Islands, Somalia, Suriname, South Sudan, Sao Tome and Principe, Sint Maarten (Dutch part), Syrian Arab Republic, Swaziland, Turks and Caicos Islands, Chad, Tokelau, Timor-Leste, Turkmenistan, Tunisia, Tonga, Uzbekistan, Holy See (Vatican City State), Wallis and Futuna, Yemen.


72 countries at a significant disconnection risk. This means there is a low internationally oriented Telecom diversity of 2 to 10 companies at the international frontier:

United Arab Emirates, Antigua and Barbuda, Armenia, Azerbaijan, Burkina Faso, Burundi, Benin, Bermuda, Brunei Darussalam, Bolivia, Bahamas, Botswana, Belarus, Belize, Democratic Republic of the Congo, Congo, Cameroon, Curaçao, Dominican Republic, Egypt, Fiji, Micronesia, Gabon, Georgia, Guernsey, Gibraltar, Equatorial Guinea, Guam, Haiti, Isle of Man, Iran, Jamaica, Jordan, Kyrgyzstan, Cayman Islands, Lao People’s Democratic Republic, Sri Lanka, Liberia, Morocco, Montenegro, Madagascar, Mongolia, Macao, Martinique, Malta, Mauritius, Maldives, Malawi, Namibia, New Caledonia, Niger, Oman, Papua New Guinea, Pakistan, Paraguay, Qatar, Rwanda, Saudi Arabia, Seychelles, Sudan, Sierra Leone, San Marino, El Salvador, Togo, Tajikistan, Trinidad and Tobago, Uganda, Uruguay, British Virgin Islands , U.S. Virgin Islands, Vanuatu, Samoa.


60 countries at a low disconnection risk. This means there is a high internationally oriented Telecom diversity of 10 to 40 companies at the international frontier:

Afghanistan, Albania, Angola, Bosnia and Herzegovina, Bangladesh, Bulgaria, Bahrain, Chile, China, Colombia, Costa Rica, Cyprus, Djibouti, Ecuador, Estonia, Ghana, Greece, Guatemala, Honduras, Croatia, Hungary, Israel, India, Iraq, Iceland, Kenya, Cambodia, Republic of Korea, Kuwait, Kazakhstan, Lebanon, Liechtenstein, Lithuania, Luxembourg, Latvia, Moldova, Macedonia, Mexico, Mozambique, Nigeria, Nicaragua, Nepal, New Zealand, Panama, Peru, Puerto Rico, Palestina, Portugal, Serbia, Slovenia, Slovakia, Thailand, Turkey, Taiwan, Tanzania, Venezuela, Viet Nam, South Africa, Zambia, Zimbabwe


30 countries are extremely resistant to Internet disconnection. This means there is a very high internationally oriented Telecom diversity of more than 40 companies at the international frontier:

Argentina, Austria, Australia, Belgium, Brazil, Canada, Switzerland, Czech Republic, Germany, Denmark, Spain, Findland, France, United Kingdom, Hong Kong, Indonesia, Ireland, Italy, Japan, Malaysia, Netherlands, Norway, Philippines, Poland, Romania, Russian Federation, Sweden, Singapore, Ukraine, United States.




Do you think this is a good metric for measuring disconnection resistance?

Thank you for your comments!