Here's a list of countries that require sender registration. We can help you register your sender name.
Please note that, if you send an SMS message to a recipient in one of these countries without proper sender registration, the SMS message will remain pending for up to 48 hours before it expires.
All recipients who have a phone number in a country where sender name is supported will receive the SMS. Those in a country that requires registration will not receive the SMS message without proper sender name registration. Your SMS activity will be sent, and those Profiles with an unsupported country will show as bounced in your SMS Report.
South Korea (Republic of Korea)
We will get back to you with more information and instructions on how to register your sender name.