What is HLR Lookup?

How to increase your SMS marketing and communication delivery rate and reduce SMS cost

HLR (Home Location Register) Lookup is a process of checking the validity and current status of a mobile phone number by querying the HLR database. The HLR database is a centralized repository that contains information about all mobile phone numbers, including the status of each number, its current location, and the service provider responsible for the number.

How does HRL Lookup work?

Whenever cell phone users make calls using their devices, the Message Switching Center (MSC) acts as a gatekeeper and checks the information stored in the Home Location Register (HLR) for each incoming connection. The International Mobile Subscriber Identity (IMSI) is a unique identifier that is assigned to each mobile subscriber and is used to identify the subscriber when they connect to a mobile network. By checking the IMSI and the information stored in the HLR, the MSC can determine what services the subscriber is entitled to access and authorize or reject the connection accordingly.

How HRL Lookup is used

Lookup is used by various industries such as telecommunication companies, mobile marketing firms, and financial services to validate the mobile number and obtain additional information about the number.

Is the Home Location Register legal?

The legality of the Home Location Register (HLR) depends on the specific laws and regulations of each country. Generally speaking, the use of HLR databases is considered legal as long as it is done in compliance with relevant privacy and data protection laws.

In some countries, there may be specific laws that regulate the use of HLR databases and require companies to obtain consent from the mobile subscribers before accessing or using their personal information. In other countries, there may be laws that restrict the use of HLR databases for certain purposes, such as marketing or telemarketing.

Therefore, it is important for companies to familiarize themselves with the laws and regulations of the countries in which they operate and to ensure that their use of HLR databases is in compliance with these laws.

Dripcel and the HLR Lookup feature

HLR Lookup is a new exciting feature of Dripcel’s SMS automated marketing and communication platform.

HLR (Home Location Register) Lookup is commonly used in SMS marketing and communication to validate the mobile numbers on a marketing and communication list and ensure that they are active and reachable. The process works as follows:

The user uploads a list of mobile numbers using Dripcel’s manual or API contacts uploader feature.
The user navigates to Contacts -> Navigation and clicks on HLR Lookup. Dripcel automatically queries the HLR global database for each mobile number in the list and retrieves information about the number, including its status and the service provider responsible for the number.
Based on the information obtained from the HLR, Dripcel categorizes each mobile number as either valid, invalid, or temporarily unreachable.
The user uses this information to determine which numbers on their list are reachable and can receive SMS messages. The user can then target their marketing efforts only towards the reachable numbers, improving the efficiency and effectiveness of their marketing campaigns.

By using HLR Lookup, companies can ensure that their SMS marketing efforts are targeted towards active and reachable mobile numbers, reducing the risk of sending messages to invalid or unreachable numbers. This helps to improve the delivery rate of SMS messages and increase the chances of successfully reaching the intended recipients.