Locale Summary |
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Locale name |
India |
ISO code |
IN |
Region |
Asia |
Mobile country code |
404, 405 |
Dialing code |
+91 |
Guidelines |
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Two-way SMS supported |
No |
Number portability available |
Yes |
Twilio concatenated message support |
Yes* |
Message length |
160 characters |
Twilio MMS support |
Converted to SMS with embedded URL |
Sending SMS to landline numbers |
You cannot send SMS to a landline destination number: the Twilio REST API will throw a 400 response with error code 21614, the message will not appear in the logs, and the account will not be charged. |
Compliance considerations |
To ensure Twilio is in compliance with local regulation, domestic transactional, domestic promotional, and international SMS messages are sent through mobile operators’ International Long Distance Operator (ILDO) connections. Pre-registered Alphanumeric Sender IDs are not supported and messages are delivered with random ILDO-approved short codes in the format 5NNNN—5NNNNNNNN (e.g., 54321). Messages will bypass India’s Do-Not-Disturb (DND) database and will be delivered without any time-of-day restrictions. Sending firearms, gambling, adult content, money/loan, political, religious, controlled substance, cannabis, and alcohol related content is strictly prohibited. Sending messages with shortened URL is not allowed. Twilio strongly encourages customers to review proposed use cases with qualified legal counsel to make sure that they comply with all applicable laws. The following are some general best practices:
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