What is Phone Number Subscriber Status?
Phone number subscriber status refers to the current state of a mobile phone number on a mobile network. This can be a valid, disconnected, invalid, prepaid or reassigned status. For instance, if a user unsubscribes from your SMS campaign, you can then use an enterprise HLR lookup service to query the home location register of their mobile network for details on the actual subscriber (MSIN). Invalid or inactive numbers can then be identified and removed from a list before sending further communications.
HLR lookups ping a phone number against the mobile carrier’s database of mobile subscriber information to verify the active line status and provide additional line details, such as carrier, location, prepaid or VOIP, and more. These lookups are backed by real-time carrier data and direct carrier relations with global support in more than 75 countries. IPQS uses the most advanced phone number validation technology to ping and scour the carrier’s databases for data points, including syntax checks, area code, number length, dialing codes, and more, allowing us to achieve higher hit rates with mobile network HLR lookups.
Determining VPN Usage: Verifying IP Authenticity
When looking up a phone number, it is important to distinguish between landline and mobile/cellular/VOIP as these are handled differently from each other. This is because landline numbers are assigned to specific geographic regions, whereas mobile/cellular/VOIP numbers are tied directly to the phone’s subscriber account with their carrier. Distinguishing between the two is critical in understanding a user’s location and determining whether they are eligible for your messaging services.
