# How can I perform HLR Lookups?

An HLR allows you to view in real-time which mobile number belongs to which operator and see whether the number is active. We provide an API to send Network Queries to any mobile number across the world.

Read our API documentation to find out how you can [integrate HLR within your software.](https://developers.messagebird.com/docs/hlr#hlr)


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.bird.com/connectivity-platform/other-integrations/how-can-i-perform-hlr-lookups.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.