Which "entity" is Facebook in the UK? Well, there's no facebook.co.uk. If you scrabble about for an "about" on facebook.com, it lists the US headquarters. The SSL certificate says "Facebook, Inc".
If I traceroute in the UK to "facebook.com" I get 157.240.1.35, which although it geolocates to London is an edgebox in the 157.240.0.0/16 block registered to ... Facebook Inc, Menlo Park.
The UK office is just for buying advertising, it's not publishing to the public.
Which "entity" is Facebook in the UK? Well, there's no facebook.co.uk. If you scrabble about for an "about" on facebook.com, it lists the US headquarters. The SSL certificate says "Facebook, Inc".
If I traceroute in the UK to "facebook.com" I get 157.240.1.35, which although it geolocates to London is an edgebox in the 157.240.0.0/16 block registered to ... Facebook Inc, Menlo Park.
The UK office is just for buying advertising, it's not publishing to the public.