This page lists information on Usenet hierarchies (collections of newsgroups starting with the same name prefix and usually sharing some characteristics like language used in discussions or a regional affiliation).
The map of local newsgroups complements this list.
| Prefix | Language | Topic | Public? | Links |
|---|---|---|---|---|
| at | German | Regional (Austria) | public | Official site, checkgroups, charters, DMOZ category, Google Groups. |
| bln | German | Regional (Berlin, Germany) | public | checkgroups, charters, Google Groups. |
| ch | German | Regional (Switzerland) | public | Official site, checkgroups, charters, DMOZ category, Google Groups. |
| de | German | All, in German language (de here means German language, not Germany) | public | Official site, checkgroups, charters, Wikipedia article, DMOZ category, Google Groups. |
| ffm | German | Regional (Frankfurt/Main, Hesse, Germany) | public | Official site, checkgroups, Google Groups. |
| hamburg | German | Regional (Hamburg, Germany) | public | Official site, checkgroups, Google Groups. |
| us | English | Regional (USA) | public | Official site, checkgroups, charters, Google Groups. |