SMS.to partners with different carriers and network providers. These providers charge per submitted SMS message. All submitted messages from SMS.to platform to the local network providers were charged regardless of the status. To learn more about the different types of status, please click this support article


We recommend users to utilize SMS.to HLR list clean-up feature for more accurate billing. To learn more about the HLR list feature, go to this link



If you have any questions, please send us an email at support@sms.to