device-registry-limits.md

author	dominicbetts
ms.author	dobett
ms.service	azure-device-registry
ms.topic	include
ms.date	11/07/2025

The following table lists the limits that apply to the Azure Device Registry resources. Azure Device Registry is used with Azure IoT Hub (preview) and Azure IoT Operations.

Resource type	Limit type	Limit
Azure Device Registry namespaces	Count per Azure subscription	100
Devices	Count per Azure subscription	100,000
Devices / discovered devices	Count per Kubernetes cluster	1,000
Devices / discovered devices	Count per Azure Device Registry namespace	10,000
Devices / discovered devices (read)	Operations per minute per Azure subscription	5,000
Devices / discovered devices (create/update)	Operations per minute per Azure subscription	500
Assets	Count per Azure subscription	100,000
Assets / discovered assets	Count per Azure Device Registry namespace	10,000
Assets / discovered assets	Count per Kubernetes cluster	1,000
Assets / discovered assets (read)	Operations per minute per Azure subscription	5,000
Assets / discovered assets (create/update)	Operations per minute per Azure subscription	500
Assets: datasets, event groups, and management groups	Count per asset	100
Assets: data points, events, and management actions	Count per asset	1,000
Assets (classic)	Count per Azure subscription	10,000
Schema registries	Count per Azure subscription	100
Schemas	Read operations per minute per Azure subscription	600
Schema versions	Read operations per minute per Azure subscription	600
Schema registries	Read operations per minute per Azure subscription	600
Policies (preview)	Count per Azure Device Registry namespace	1
Credentials (preview)	Count per Azure Device Registry namespace	1
Credentials (preview)	Count per Entra ID tenant	2