How many numbers of device can be registered by Azure IoT Hub?

Is there any max numbers of device registering by Azure IoT Hub? I find this article but there are informations only for the total number of messages

Same question for the service Device Provisioning.

Solution

This document details the limitations of Azure IoTHub: https://github.com/MicrosoftDocs/azure-docs/blob/master/includes/iot-hub-limits.md

And according to it now:

Currently, the maximum number of devices you can connect to a single IoT hub is 1,000,000. If you want to increase this limit, contact Microsoft Support.

So it is by default a million devices for a single IoT Hub.