![]() However, delivery quality will be lower since these countries typically filter for A2P messaging traffic sent over long codes. Note: You can still use an SMS-capable number to send SMS messages to countries that require pre-registration of Alphanumeric Sender IDs. Your Alphanumeric Sender ID will be selected automatically when sending to a supported country unless you have SMS-capable numbers from that country in your Messaging Service pool, in which case Twilio will use those numbers instead. This feature works when sending single text messages, as well as when sending bulk messages through Twilio’s Messaging Service. When to use Alphanumeric Sender IDĪlphanumeric Sender ID for supported countries is only available for upgraded (paid) Twilio accounts. Please review the full list here to ensure you have an approved use case. ![]() However, certain use cases for Alphanumeric Sender IDs are prohibited. Also, because users can't respond directly, we recommend including opt-out instructions in the message body to ensure compliance with CTIA and other regulatory guidelines, especially for promotional use cases. If you want users to respond, simply include contact information in your messages. Because of this limitation, we recommend using Alphanumeric Sender IDs for one-way outbound messaging use cases, such as one-time passwords and account notifications. You can use Alphanumeric Sender IDs only for one-way messages-recipients can’t respond. That way you strengthen your brand every time you send a message that identifies your company. When you register your Alphanumeric Sender ID, your messages and number are vetted with local authorities to establish the legitimacy of your messages and be passed through carrier firewalls.Īnd because you can send your SMS messages with a personalized sender name-such as your company name-your recipients will always know who is messaging them. What’s more, for countries in which Alphanumeric Sender ID registration is enforced, you can also improve message delivery by reducing carrier filtering of A2P (application-to-person) traffic, as well as manage fluctuations in telecom logic, local regulations, and carrier-specific rules. In countries that support Alphanumeric Sender IDs, leveraging them can dramatically increase your open rates. And if that message comes from an unfamiliar international number, the chances of a recipient opening it are particularly slim. Given the amount of spam and unwanted messages people receive on a given day, it’s no surprise they often ignore messages from an unfamiliar number. All with Personalized Alphanumeric Sender ID This document certifies your company will be responsible for all messages sent out using this Alphanumeric Sender ID and that your company will abide by the anti-spamming regulations of the Saudi Communications and Information Technology Commission (CITC).Increase open rates.
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