Hello, Ireland! Sending SMS in Twilio’s Ireland Region

Twilio’s Ireland region (IE1) enables Programmable SMS customers to keep the storage and processing of message content and end-user phone numbers within the EU, supporting data residency requirements at no additional cost. Customers can use their existing Twilio account but need IE1-specific authentication credentials and a separate IE1 Messaging Service, as US1 services cannot be reused. Migration requires minimal code changes, chiefly replacing the standard API hostname with the Dublin IE1 endpoint or changing an SDK client’s region setting from us1 to ie1, while preserving the normal API request and response format. IE1 currently does not support SMS to or from +1 numbers, RCS, or WhatsApp, and Twilio provides regional log filtering to confirm where messages were processed. The company also plans to expand IE1 capabilities with services including Studio and TaskRouter.

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