Azure IP lookup
Find Azure service tag, region, and network metadata for any IP address or domain. Share results easily with a link to the same lookup.
IP lookup
Matched Azure service tags for
57.152.109.49 | IP address | Service tag ID | Prefix | Region | System service | Network features |
|---|---|---|---|---|---|
57.152.109.49 | AzureCloud.eastus | 57.152.0.0/17 | eastus | API NSG | |
57.152.109.49 | AzureCloud | 57.152.0.0/17 | API NSG |
- IP address
- 57.152.109.49
- Service tag ID
- AzureCloud.eastus
- Prefix
- 57.152.0.0/17
- Region
- eastus
- System service
- Network features
- API NSG
- IP address
- 57.152.109.49
- Service tag ID
- AzureCloud
- Prefix
- 57.152.0.0/17
- Region
- System service
- Network features
- API NSG
Common use cases
Azure VIP lookup
Check if an IP is an Azure VIP and identify associated service tags and regions.
Traffic analysis
Identify the source of unknown IPs found in client access logs, IIS logs, or Azure Log Analytics.
DDoS investigation
Determine the origin of unfamiliar IPs appearing in DDoS mitigation logs.
Frequently asked questions
What are Azure service tags?
Azure service tags group IP ranges for Azure services. Instead of maintaining IP allowlists, you can reference a single service tag in your NSG or firewall rules. Each service tag has an ID and network features that describe its usage.
How does the Azure IP Lookup tool work?
The lookup submits your IP address or domain to the Azure IP Lookup API. The API maps the address to Azure service tags published by Microsoft and returns the matching service tag ID, region, and network feature metadata. Results update weekly as Microsoft releases new IP data.
Does the lookup support IPv6 addresses?
Yes. The tool accepts IPv4, IPv6, and domain names. IPv6 prefixes are returned exactly as Microsoft publishes them in the weekly service tag downloads.
How often does Azure update IP data?
Microsoft publishes updated IP ranges weekly. Use the Azure IP Ranges and Service Tags - Public Cloud download to stay current.
Can I automate lookups?
Yes. The Azure Speed IP Lookup API accepts a simple GET request at
/api/ipAddress?ipOrDomain=<ipAddressOrDomain> . Supply either an IP address or domain name and the service returns the same payload you see in the UI. | Lookup type | Example URL |
|---|---|
| Domain name | https://www.azurespeed.com/api/ipAddress?ipOrDomain=www.azure.com |
| IPv4 address | https://www.azurespeed.com/api/ipAddress?ipOrDomain=104.45.231.79 |
| IPv6 address | https://www.azurespeed.com/api/ipAddress?ipOrDomain=2603:1030:0800:0005:0000:0000:BFEE:A418 |
Additional resources
API source code
Check out the open-source Azure IP Lookup API that powers this tool.
View on GitHubService tags overview
Learn how service tags simplify Azure network security management.
Learn moreService Tag API docs
Use the REST API to automate service tag lookups and updates.
Learn morePowerShell tooling
Manage service tags programmatically with the Azure PowerShell module.
Learn more