XS4ALL is a Dutch Internet service provider ( ISP) that was founded by Felipe Rodriquez and Rop Gonggrijp, activists of the hacker magazine Hack- Tic 1993. It is thus by Nlnet SURFnet and the third oldest and still one of the largest ISP in the Netherlands. The headquarters is located in Amsterdam. XS4ALL offers both dial-up and ADSL-/SDSL and fiber optic (FTTH ) internet connections. In 2005 the company achieved a turnover of 86.1 million euros and a profit before tax of 15.4 million euros with 327 employees and 265,000 residential customers.
In Germany, XS4ALL 1996 known after the attorney general had tried to allow access to all XS4ALL - Suspend domains in Germany, because a customer had placed the banned radical leftist journal content radically on its XS4ALL website. This was closed in 1998.
2002 procured the German train before an Amsterdam court a ruling that forced XS4ALL to delete the radical sites because they contained instructions for sabotage of railway facilities, which was also illegal under Dutch law.
In December 1996, XS4ALL has set up a audio stream for the dissident Serbian radio station B92, after the government of Slobodan Milošević was interfering with this.
When the Internet was turned off by the regime there in the uprisings in Libya in February 2011, XS4ALL offered a free dial-up access. Co-founder Rop Gonggrijp wrote that the access was " for all people who want to go from Libya or any other country online, where arbitrary assholes trying to turn off the Internet ".
The technology to provide the necessary leadership capacity in the backbone, and other switching equipment comes from the parent company KPN.