The security of the communication service providers (CSPs) signaling network is at risk due to multiple factors, including a new wave of vulnerabilities created by roaming via SS7 interconnections. With tens of billions of additional devices connected to the network, the Internet of Things (IoT) represents a critical challenge for operators in terms of signaling and security. Consequently, CSPs need a new, highly secure signaling architecture, protected by a robust multi-protocol signaling firewall. To successfully mitigate some types of attacks, it is essential that the Signaling Firewall has access to the most precise and up-to-date information about it’s signaling peer nodes in other networks. NetNumber Global Data Services (GDS) integrate a comprehensive collection of number portability databases, the Override Service Registry, code range data and other data sets which together describe each phone number with various data points. This rich set of information can be used when defining the Signaling Firewall rules in order to implement specific restrictions that secure the network.