HLR Lookup

With the advent of number portability, it is becoming increasingly difficult to reliably identify in what network a mobile phone number belongs to just by looking at the number (MSISDN).

The HLR lookup (referred also as Mobile Network Query or IMSI lookup or MSISDN lookup or Mobile Number Portability lookup service) allows you to check in real-time, whether a mobile number is active, and which network it currently belongs to.

HLR or Home Location Register is a central database containing details of each mobile phone subscriber that is authorized to use the GSM core network. IMSI or International Mobile Subscriber Identity is a unique number associated with all GSM networks and mobile phone users. This unique number is stored inside the mobile phone SIM card. The used network identifies each mobile phone subscriber by this particular number. The IMSI provides information such as location of call, user preferences and account status.

When you submit a MSISDN (mobile number) to our HLR lookup service, our system checks whether the mobile number is valid. If so, it returns the IMSI, the operator name and the country plus the MCC/MNC (Mobile Country Code/Mobile Network Code) associated with it.

HLR Lookup Features

• HLR Lookup validity result
• Mobile Country Code (MCC) of network operator corresponding to the MSISDN
• Mobile Network Code (MNC) of network operator corresponding to the MSISDN
• Network operator offcial name corresponding to the MSISDN
• Country of network operator corresponding to the MSISDN

This service can help mobile marketers identify and eliminate invalid numbers and SMS aggregators and resellers optimize their SMS routing. By using this service you avoid the cost and waste of having messages returned because the number has been ported, or is no longer in use. In more detail:

• Simple Users - determine if the number is in use since some people close their mobile contracts or stop paying their phone bills
• Marketers - clean up your lists or databases of mobile numbers - filter out invalid numbers
• Application providers and developers - send relevant information to mobile users based on location
• Organisations wanting to deliver secure services - validate the identity of the mobile user
• Operators, aggregators and service providers - avoid paying high/unexpected interworking fees, route through the least cost provider and keep your customers happy by ensuring messages get delivered