Tear one company:- This company spread their optic fiber cables in seas in the entire the world then they connected to country to country.
There are many cables in the world in each cables there are 100 Gbps speed is present the Tera one company. There is website submarinecablemap.com. You go to this website and see all the cables where are connected in which country
If we see in india the first cable is in Mumbai Maharashtra the landing point of this company is in Mumbai. If you use jio, Airtel, Vodafone, Idea etc the build there tower in various places. If you visit any website but the website is out of the india so the your website goes from landing point mumbai. If you see there are many cables in Chennai. The all companies release your data from their landing point example:- Mumbai, Chennai, Cochin etc. If we talk about jio the reliance jio spread their own cables in Asia, South Europe so they have 40 tera byte capacity.
Tear two company:- This company helps to tear one company for supply the internat for this particular city.
Tear three company:- The tear three company helps to tear two company for supply the internet for our exact location.
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