I think the difference is mostly with different technologies, for example fibre as compared with DSL or cable. You won't find much difference between providers of the same technology, particularly if the cables are run and managed by governments who lease the network to providers. In that case, they would all be using the same network. Here in Canada most networking is laid and operated separately by private businesses but I know in many parts of the world government leased networks are typical.
2022-09-21 07:05