MessageBird’s HLR API provides a way to send Network Queries to any mobile number globally. It allows you to view what mobile number (MSISDN) belongs to what operator in real-time and see if the number is active.

The HLR API uses HTTP verbs and a RESTful endpoint structure with an access key that is used as the API Authorization framework. Request and response payloads are formatted as JSON—although we provide a GET alternative for requests—using UTF-8 encoding and URL encoded values.


We’re always happy to help with code or other doubts you might have! Check out our Quickstarts, API Reference, Tutorials, SDKs, or contact our Support team.

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