Therefore, if you send text messages to an unsupported country, your senderID will not be delivered. If you wish to have senderIDs supported for specific countries and/or networks, the tyntec technical support team will let you know which operators require senderID registration.
This process usually involves submitting a request to the respective operators on your behalf indicating the desired senderID and your use cases. The process usually takes a few business days to complete. Whenever your desired senderID is not supported, it might get replaced with another senderID (alphanumeric or numeric) to ensure the delivery.