Run a wide range of both national and international numbers worldwide through our Phone Number Validation API. Use it with landline, mobile, toll free, VoIP etc. For example today a valid mobile number is required within the registration process in some platforms, then SMS is sent and user have to type it in to complete its registration. Allowing invalid numbers can increase the number of bogus users, abandonment of registration and it will cost more to send SMS to invalid numbers that won’t be delivered. At very least using ID API Phone validation endpoint will help differentiate between mobile, landline and other types of phone numbers.