Country rules on sending SMS messages
Understand international SMS regulations that may affect message delivery, content, and sender ID formatting.
SMS regulations vary by country and can affect whether your messages are delivered. Rules typically cover:
- Time of day -- when messages may be sent
- Content restrictions -- what you can include in a message
- Sender ID format -- the "from" address displayed to the recipient. Carriers in some countries block messages from unrecognized phone number formats. To help ensure delivery, the sender ID may be automatically replaced with a format accepted by the local carrier.
Country-specific regulations
Clickatell maintains detailed guidance for the following countries:
Armenia | Australia | Belarus | Belgium | Brazil | Canada | China | Columbia | Czech Republic | Denmark | Ecuador | Ethiopia | Finland | France | Germany | Guatamala | Hong Kong | Hungary | India | Indonesia | Ivory Coast | Jordan | Kazakhstan | Kenya | Kuwait | Libya | Malawi | Malaysia | Mexico | Morocco | Namibia | New Zealand | Nigeria | Norway | Oman | Panama | Peru | Philippines | Poland | Qatar | Romania | Saudi Arabia | Senegal | Singapore | South Africa | South Korea | Sweden | Taiwan | Thailand | Turkey | Uganda | United Arab Emirates (UAE) | United Kingdom | United States | Vietnam | Zimbabwe
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