AWS End User Messaging SMS launches Carrier Lookup

Posted on: Nov 6, 2025

Starting today, AWS End User Messaging customers can now lookup carrier information related to a phone number including the country, number type, dialing code, and mobile network and carrier codes. With Carrier Lookup, you can increase deliverability by checking important information about a phone number before you start sending messages, avoiding sending messages to the wrong destination, or to incorrect phone numbers.

AWS End User Messaging provides developers with a scalable and cost-effective messaging infrastructure without compromising the safety, security, or results of their communications. Developers can integrate messaging to support uses cases such as one-time passcodes (OTP) at sign-ups, account updates, appointment reminders, delivery notifications, promotions and more.

Support for Carrier Lookup is available in all AWS Regions where End User Messaging is available, see the AWS Region table.

To learn more, see AWS End User Messaging