@HemanthAmpolu-3685 Thank you for reaching out.
The public IP ranges are published as Json files and are updated frequently.
Below is an example from the JSON file showing IP ranges for AppServices in CentralIndia region
You can also retrieve the IP's programmatically using a REST API, Powershell or Azure CLI via the Service Tag Discovery API
Please whitelist the IP range of the region where your Appservice is deployed.
Do let us know if you have further questions.
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