Regarding Facebook Network Appliance (FNA)

How do I know which ISP’s FNA node I am using when using Facebook in my country? If anyone knows please let me know.

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You can open Discover Popular Videos | Facebook on Chrome/Chromium based browser and right click and click Inspect.

Here you will see bunch of sources. Focus on

XXX here will give you airport code and will give you idea of which FNA node you are hitting. You can also look at IPv4/IPv6 of that string. It would be mostly on the IP of the ISP with FNA node serving you.

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