HLR Lookup

• HLR is a database of user (subscriber) information, i.e., customer profiles, used in mobile (cellular) networks.
• HLR contains user information such as account information, account status, user preferences, features subscribed by the user, user’s current location, etc.
• HLR Lookup System is expected to provide an existence check on mobile numbers.
• It enables clients to submit lookup queries and send responses back to originating clients.
• This query is responded by a lot of useful information most important among which is the status of the mobile number.
• The status of a mobile number returned by the HLR tells us whether a mobile number is available, temporarily unavailable or permanently unavailable which means invalid or non-existing number.

Why HLR?

• Company maintains databases of mobile numbers.
• Invalid mobile numbers = a huge loss to the company.
• Loss = Number of invalid nos. * Number of times of their usage * Cost of one SMS sent to an invalid number.
• Companies use databases of mobile numbers on frequent bases to send messages.
• It has been observed that over time some of these numbers might become obsolete.

Also, there is a good possibility that some of the numbers maintained in the database might be invalid right from the onset because of the bad source.

HLR Lookup: Who Should Use?

• We help different types of customers to achieve significant cost savings, save time and overcome issues related to the status and identity of a mobile number/subscriber.
• Marketers – clean up the database of mobile numbers and filter out invalid numbers.
• Developers - send relevant information to mobile users based on location.
• Service providers - Keep your customers happy by ensuring messages get delivered