internet provider in Etterbeek

Although there are national and regional providers of internet access in Belgium, I'm not aware of any commune specific providers. The most common ways to get internet access (assuming it is for a wired access to your home) is either with one of the telecom companies such as Belgacom or else via your cable TV company, which in Brussels is likely to be Telenet.

Our apartment in Etterbeek is served by Numericable. Hopefully that helps.