AWS SNS service

If you would like to send SMS from AWS SNS, for one of the use-cases that this is supported for, then you first need to purchase an AWS SNS Origination Identity from AWS.

These case be either a Sender ID (and Alphanumeric Name - supported in some countries) or an orgination number.

To learn how to do this, and then send SMS messages with SNS - read https://docs.aws.amazon.com/sns/latest/dg/sns-mobile-phone-number-as-subscriber.html

Hi,

Take a look at the following AWS documentation which describes how to send SMS messages directly to a mobile phone without subscribing the phone number to an Amazon SNS topic.

Create an SMS message template for each type of message that you plan to send