The HLR is a database for mobile subscriber management. It stores the following information:

• Subscription information

• Subscriber states

• MS location information

• MDN

• IMSI (MIN)

HLR store Subscription information: HLR has a basic function to store subs data in it.

HLR manage MS location information: It ararnge support from VLR to identify location of MS.

MDN:Mobile Directory Number

IMSI(MIN):International Mobile Subscriber Identity (IMSI)

Wanna know more

How HLR store Subscription information?

What is Subscriber states?

How HLR manage MS location information?

What is MDN?

what is IMSI(MIN)?

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