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.