SMS delivery services are not available in all regions. Check the lists below to confirm if your country is supported.

Altostrat uses phone number prefixes to determine if SMS delivery is allowed. Some countries are disabled due to high risk or minimal user volume.

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Supported Regions

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Unsupported Regions & Services

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High-Risk Regions

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Satellite & International Networks

Service availability can change. Check periodically for updates or contact Altostrat Support if you need an unsupported region enabled.

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