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Global Deliverability

Twilio can deliver messages to over 1200 carriers in 198 countries around the world. These carriers implement different mechanisms to relay message status back to the sender. When carriers send these acknowledgements, we use them to continuously improve our global reach.

This page shows the percent of messages for which Twilio has received positive carrier acknowledgement indicating successful receipt. We believe this is a high indicator of global quality and work with carriers every day to ensure your messages are successfully delivered. Learn More »

Data for Mar 2014
Country Carrier Acknowledgement
United States 98%
Afghanistan 77%
Algeria 92%
Andorra 58%
Angola 90%
Anguilla 92%
Argentina 85%
Armenia 76%
Aruba 87%
Australia 93%
Austria 91%
Azerbaijan 80%
Bahamas 88%
Bahrein 91%
Bangladesh 95%
Belarus 96%
Belgium 92%
Belize 79%
Benin 96%
Bolivia 90%
Bosnia and Herzegovina 93%
Botswana 84%
Brazil 82%
Brunei 90%
Bulgaria 94%
Burkina Faso 81%
Burundi 93%
Cambodia 92%
Cameroon 87%
Canada 93%
Cape Verde 90%
Cayman Islands 94%
Chad 83%
Chile 89%
China 76%
Colombia 63%
Comoros 83%
Costa Rica 79%
Croatia 93%
Cyprus 95%
Czech Republic 93%
Democratic Republic of the Congo 91%
Denmark 93%
Dominica 92%
Dominican Republic 82%
Ecuador 98%
Egypt 62%
El Salvador 80%
Equatorial Guinea 95%
Estonia 93%
Ethiopia 61%
Fiji 72%
Finland 92%
France 95%
French Guiana (France) 84%
Gambia 94%
Georgia 91%
Germany 91%
Ghana 90%
Gibraltar (UK) 91%
Greece 96%
Greenland 83%
Grenada 81%
Guadeloupe 86%
Guatemala 90%
Guinea 66%
Guyana 92%
Haiti 76%
Honduras 43%
Hong Kong 89%
Hungary 96%
Iceland 97%
India 82%
Indonesia 90%
Iran 92%
Iraq 85%
Ireland 93%
Israel 90%
Italy 93%
Ivory Coast 91%
Jamaica 91%
Japan 86%
Jordan 91%
Kazakhstan 89%
Kenya 89%
Korea 82%
Kuwait 91%
Kyrgyzstan 68%
Laos 61%
Latvia 93%
Lebanon 79%
Lesotho 79%
Libya 92%
Liechtenstein 98%
Lithuania 95%
Luxembourg 93%
Macau 85%
Macedonia 89%
Madagascar 93%
Malawi 92%
Malaysia 94%
Maldives 91%
Mali 92%
Malta 94%
Martinique 86%
Mauritius 95%
Mexico 98%
Monaco 93%
Montenegro 94%
Montserrat (UK) 90%
Morocco 84%
Mozambique 90%
Namibia 92%
Nepal 79%
Netherlands 92%
Netherlands Antilles 90%
New Zealand 92%
Niger 63%
Nigeria 92%
Norway 78%
Oman 88%
Pakistan 79%
Panama 78%
Paraguay 87%
Philippines 93%
Poland 90%
Portugal 93%
Qatar 90%
Republic of the Congo 62%
Romania 90%
Russia 94%
Rwanda 94%
Réunion 83%
Saint Vincent and the Grenadines 71%
Saudi Arabia 86%
Senegal 91%
Serbia 90%
Seychelles 91%
Singapore 94%
Slovakia 86%
Slovenia 95%
South Africa 90%
Spain 86%
Sri Lanka 93%
St. Kitts and Nevis 89%
St. Lucia 92%
Sudan 90%
Suriname 89%
Swaziland 84%
Sweden 88%
Syria 73%
Taiwan 93%
Tajikistan 85%
Tanzania 94%
Thailand 72%
Togo 94%
Trinidad and Tobago 91%
Tunisia 52%
Turkey 92%
Turks and Caicos Islands (UK) 91%
Uganda 93%
Ukraine 96%
United Arab Emirates 90%
United Kingdom 95%
Uruguay 88%
Uzbekistan 94%
Venezuela 95%
Vietnam 77%
Yemen 73%
Zambia 66%
Zimbabwe 85%


FAQs

Why isn't carrier acknowledgement successful 100% in all countries?
There are several reasons a carrier may not acknowledge receipt of a message. Some examples are:
  1. Not all carriers support the acknowledgment protocols.
  2. The receiving carrier is not capable of receiving messages, such as a land-line carrier.
  3. Message was blocked by carrier for going against carrier guidelines.
  4. The destination phone number does not exist.
What happens to messages that are not acknowledged by carriers?
The lack of an acknowledgement does not imply that the message was not delivered to the subscriber, it just means the carrier hasn't given us any acknowledgement.
Does a successful carrier acknowledgement mean my message was delivered to the handset?
Carrier acknowledgements indicate delivery to the carrier, but does not mean the the destination handset actually received the message. Handset delivery receipts indicate delivery to the destination handset, but it's important to note that not all carriers support these. Where handset delivery receipts are support by carriers, we include this data in the percentage of carrier acknowledgement.