MNP stands for Mobile Number Portability; and is the process a mobile user goes through when switching from one mobile network operator to another. Users generally do so to benefit from a better tariff from another operator, all without needing to change their mobile phone number.

When managing larger scale SMS operations where you’re buying SMS routes with varying rates depending on the mobile network. MNP can be a great tool for ensuring that you’re paying the correct rate for the mobile number you’re sending to. Generally those utilising MNP will save costs and reduce billing discrepancies. This tool is especially useful in countries where there are a high number of ported numbers.