Help Center/ Message & SMS/ FAQs/ Others/ Are There Any Requirements on the Format of the Mobile Numbers Entered When Calling APIs to Send SMSs?

Updated on 2023-04-12 GMT+08:00

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Are There Any Requirements on the Format of the Mobile Numbers Entered When Calling APIs to Send SMSs?

the to parameter specifies recipient numbers. The standard number format is +{Country code}{Region code}{Mobile number}.

All recipient numbers to which international SMSs are sent must be in the standard format, for example, +2412000000 (a Gabon number).
If an SMS is sent to recipients in the Chinese mainland and +{Country code} does not exist, the default country code +86 is used; if the recipient number is a mobile number, {Region code} is optional, for example, +8613112345678.

Separate multiple recipient numbers with commas (,). Each number contains a maximum of 21 characters, and a maximum of 500 numbers are supported.

Parent topic: Others

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