Can I send SMS messages to international mobile phone numbers?

USA and Canadian Service Plan Customers
At this time, you cannot send SMS messages to international mobile phone numbers.

For our customers in the USA and Canada, if you choose an SMS number as a message recipient in a contact group, cell carriers in North America allow us to convert it to an email that is receivable in an SMS format - so you never get charged SMS fees like elsewhere in the world. This is why SPOT asks for the carrier when you add a cellular contact. We do this all in an effort to reduce costs for your subscription. Please note that your contacts might be subject to an SMS message charge.
Because North American Service Plans do not utilize a Cellular Aggregator, at this time you cannot add international SMS numbers to your message recipient contacts in your account. With this in mind, we still have you covered: Add a contact with any email address instead, no matter where the contact resides.