Astraweb is a Usenet/newsgroup service provider. Founded in 1997, Astraweb service is available to individual users through a subscription model and as an outsourced service to Internet service providers. Notably Astraweb was responsible for the huge increase of retention on almost all big Usenet services, which was triggered by their announcement to keep files for up to 270 days in December 2008. As of July 2014, retention time for files was up to 2150 days. In addition, Astraweb offers 'block accounts' (pay-per-byte).