Enterprise HLR Lookup Platform and API
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Live mobile phone connectivity
and portability data from
network operators directly.
HLR Lookups is a technology to check the status of any GSM cell phone number. By making a query to the Home Location Register, the lookup service determines whether that number is valid, whether it is currently active in a mobile network, and if so which network, whether it was ported from another network, and whether it is roaming. The query will also return meta information such as the IMSI, MSC, MCC and MNC.
How it Works
All mobile phone operators are connected by a network known as the Signaling System No. 7 network — or simply the SS7. The SS7 forms the backbone of the SMS (short message service) text messaging system, and it is used by cell phone operators to exchange information concerning setting up phone calls, number translation, prepaid billing systems, and so on. HLR Lookup services obtain information by sending the appropriate message over the SS7 mobile signaling network.
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What is an HLR Lookup?
With the emergence of Mobile Number Portability, cell phone subscribers can now keep their number when they change carriers. One result is a dramatic rise in the number of customers who choose to change carriers and port their number to their new network, simply because they sometimes want the latest-model handset.
This of course is highly convenient for customers, but it has also created a major challenge: It is much harder now for businesses, universities, and other organizations to guarantee the successful delivery of voice calls and text messages, because their customer databases is often full of invalid or deactivated phone numbers. The result? A costly expenditure of time and money. HLR Lookup is a service that gets around this.