What is HLR (Home Location Register)?

HLR full form is (Home Location Register). The HLR in mobile communication is a central database in a wireless network containing data of all active customers, including call routing details, service entitlement information, and number porting activity. 

Whenever a wireless device connects with a mobile network, the HLR in telecom, along with the International Mobile Subscriber Identity (IMSI) number, is accessed to manage services.

What is the Home Location Register Lookup (HLR Lookup)?

The HLR Lookup is a service query that dynamically contacts the network operator’s database for subscriber information. An HLR Lookup can obtain the status and context information of a mobile phone number. 

‘Lookup’ is a tool that initiates a thorough HLR lookup for any mobile number(s). You can know the following with HLR Lookup:

1. Portable status of the number
2. Mobile network operator,
3. Active status,
4. Roaming and other details. 

 HLR Lookup lets you clean up your lists or check the status before sending an SMS. You can Lookup for a specific number or upload a file with a maximum of 5,00,000 numbers.