Home Location Register

What is Home Location Register (HLR)?

What does HLR stand for?

itMyt Explains Home Location Register:

A home location register (HLR) is a Database containing pertinent Data regarding Subscribers authorized to use a international machine for mobile communications (GSM) Network. Some of the Records saved in an HLR includes the global mobile subscriber idEntity (IMSI) and the mobile station worldwide subscriber directory number (MSISDN) of each subscription.

The IMSI uniquely identifies every Subscriber Identity Module (SIM) and serves as the Primary Key for every HLR report. The MSISDN (also called the Cell subscriber Integrated Services Digital Network) is a listing of the phone numbers for every subscription. Other inFormation saved inside the HLR consists of offerings asked by or rendered to the corresponding subscriber, the general Packet radio Carrier settings of the subscriber, the Current location of the subscriber and speak to divert settings.

What Does Home Location Register Mean?

Because cell telephones, and their respective SIMs, are mostly Cellular, the HLR serves as the main supply of new viciNity records. The HLR is UPDATEd on every occasion the SIM transfers into some other region area. The HLR additionally plays a massive position in brief message carrier (SMS) message sending. Before the SMS organization Forwards the message to the meant recipient, it scans thru the HLR to find which Mobile Switching Center (MSC) the recipient has recently used.

If the target MSC reports that the recipient’s cellphone isn't always available, a message ready Flag is about in the HLR. If the recipient seems in some other MSC (as an example, whilst flying to another city), he nonetheless receives the message because the MSC will notify the HLR as soon as the recipient is detected in its jurisdiction.

Other cellular additives actively working with the HLR include the Gateway cell Switching center (G-MSC), traveller area sign up (VLR) and the Authentication Center (AUC).

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