Carrier lookup is primarily performed to know the validity, line type, carrier, location and fraud prevention of the number before contacting them through various ways like SMS or a calling. Having insight into the data will improve your CRM and outreach campaigns with personalization and segmentation.  Thus saving time and money by contacting the user during the appropriate time of day and through a correct channel. Risk scoring of telephone numbers is essential for fraud prevention purposes. Fraud prevention algorithms can then attach a higher risk to prepaid numbers or services like Google Voice, which are typically easier to activate than postpaid numbers.