blrchen / azure-ip-lookup

API to lookup Azure region info and service tag based on domain name or ip address

Azure IP Lookup

This tool provides API services to fetch Azure region data and service tags via a domain name or an IP address.

Web UI

• Visit the Web UI here: https://www.azurespeed.com/Azure/IPLookup

Web API Usage

Function	Example URL
Domain name lookup	https://azure-ip-lookup.azurewebsites.net/api/ipAddress?ipOrDomain=www.azurespeed.com
IPv4 address lookup	https://azure-ip-lookup.azurewebsites.net/api/ipAddress?ipOrDomain=104.45.231.79
IPv6 address lookup	https://azure-ip-lookup.azurewebsites.net/api/ipAddress?ipOrDomain=2603:1030:0800:0005:0000:0000:BFEE:A418

Local Development Environment Setup

1. Download and install Dotnet Core SDK 6 from https://dotnet.microsoft.com/download/dotnet/6.0.

2. Open AzureIpLookup.sln file in Visual Studio 2022 or Rider.

3. Compile the code and start the function app locally. Access the local endpoint at http://localhost:7071/api/ipaddress?ipOrDomain=40.78.234.177. If you encounter an error The listener for function 'SyncServiceTagFiles' was unable to start, try running the Azurite Emulator locally with the following Docker command and then restart the function app:

   docker run --name azurite -p 10000:10000 -p 10001:10001 -p 10002:10002 mcr.microsoft.com/azure-storage/azurite

Cloud Deployment

At the moment, deployment is only supported on Azure Function. For detailed instructions, refer to the official Azure Function documentation.

Additional Resources

• Service Tags: https://docs.microsoft.com/en-us/azure/virtual-network/security-overview#service-tags
• URLs to download Azure's IP range and service tag data:
  • Azure Cloud: https://www.microsoft.com/en-us/download/details.aspx?id=56519
  • Azure China Cloud: https://www.microsoft.com/en-us/download/details.aspx?id=57062
  • Azure US Government Cloud: https://www.microsoft.com/en-us/download/details.aspx?id=57063