Signal & Syntax · Networks, HLR and porting
What Is a VLR?
The VLR (Visitor Location Register) is a temporary database attached to a mobile switching center. The VLR holds records for handsets in the switch's area.The VLR (Visitor Location Register) is a temporary database attached to a mobile switching center. The VLR holds records for handsets in the switch's area.The VLR (Visitor Location Register) is a temporary database attached to a mobile switching center. The VLR holds records for handsets in the switch's area.
Also calledVisitor Location Register
Example
VLR in Practice
A handset entering a new area registers with the local VLR. The VLR copies the subscriber record from the A handset entering a new area registers with the local VLR. The VLR copies the subscriber record from the A handset entering a new area registers with the local VLR. The VLR copies the subscriber record from the HLRHLR. The HLR then stores which VLR serves the subscription. Roaming handsets register in a VLR on the visited network.. The HLR then stores which VLR serves the subscription. Roaming handsets register in a VLR on the visited network.. The HLR then stores which VLR serves the subscription. Roaming handsets register in a VLR on the visited network.
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Related Terms
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Guide
HLR Lookup vs eHLR
Two ways to check whether a number is in use. Read the guide →Run the Checks on Your Own List
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